SYMBOLCOMMON_NAMEaka. SYNONYMS
win.sakula_rat (Back to overview)

Sakula RAT

aka: Sakurel

Actor(s): APT 26, Hurricane Panda


Sakula / Sakurel is a trojan horse that opens a back door and downloads potentially malicious files onto the compromised computer.

References
2018-11-16CyberThreatIntelligence BlogAction09
@online{action09:20181116:c0ld:89e6c06, author = {Action09}, title = {{(C)0ld Case : From Aerospace to China’s interests.}}, date = {2018-11-16}, organization = {CyberThreatIntelligence Blog}, url = {https://cyberthreatintelligenceblog.wordpress.com/2018/11/16/c0ld-case-from-aerospace-to-chinas-interests/}, language = {English}, urldate = {2020-01-07} } (C)0ld Case : From Aerospace to China’s interests.
Sakula RAT
2016-07-14Github (nccgroup)NCC Group PLC
@online{plc:20160714:technical:a0afcbd, author = {NCC Group PLC}, title = {{Technical Notes on Sakula}}, date = {2016-07-14}, organization = {Github (nccgroup)}, url = {https://github.com/nccgroup/Cyber-Defence/tree/master/Technical%20Notes/Sakula}, language = {English}, urldate = {2020-01-08} } Technical Notes on Sakula
Sakula RAT
2015-08-06SymantecJon DiMaggio
@online{dimaggio:20150806:black:b0fbb35, author = {Jon DiMaggio}, title = {{The Black Vine cyberespionage group}}, date = {2015-08-06}, organization = {Symantec}, url = {https://docs.broadcom.com/doc/the-black-vine-cyberespionage-group}, language = {English}, urldate = {2022-04-25} } The Black Vine cyberespionage group
Sakula RAT
2015-07-30SecureworksDell Secureworks CTU
@online{ctu:20150730:sakula:8025917, author = {Dell Secureworks CTU}, title = {{Sakula Malware Family}}, date = {2015-07-30}, organization = {Secureworks}, url = {https://www.secureworks.com/research/sakula-malware-family}, language = {English}, urldate = {2020-01-06} } Sakula Malware Family
Sakula RAT
2015-02-06CrowdStrikeCrowdStrike
@techreport{crowdstrike:20150206:crowdstrike:fbcc37f, author = {CrowdStrike}, title = {{CrowdStrike Global Threat Intel Report 2014}}, date = {2015-02-06}, institution = {CrowdStrike}, url = {https://web.archive.org/web/20200509171721/https://raw.githubusercontent.com/fdiskyou/threat-INTel/master/2015/GlobalThreatIntelReport.pdf}, language = {English}, urldate = {2020-05-11} } CrowdStrike Global Threat Intel Report 2014
BlackPOS CryptoLocker Derusbi Elise Enfal EvilGrab Gameover P2P HttpBrowser Medusa Mirage Naikon NetTraveler pirpi PlugX Poison Ivy Sakula RAT Sinowal sykipot taidoor
2014-02-23SymantecSymantec
@online{symantec:20140223:trojansakurel:9674bd4, author = {Symantec}, title = {{Trojan.Sakurel}}, date = {2014-02-23}, organization = {Symantec}, url = {https://www.symantec.com/security_response/writeup.jsp?docid=2014-022401-3212-99}, language = {English}, urldate = {2020-01-06} } Trojan.Sakurel
Sakula RAT
2014-02-21SonicWallEd Miles
@online{miles:20140221:cve:fec48e2, author = {Ed Miles}, title = {{CVE 2014-0322 Malware - Sakurel (Feb 21, 2014)}}, date = {2014-02-21}, organization = {SonicWall}, url = {https://web.archive.org/web/20151001235506/https://www.mysonicwall.com/sonicalert/searchresults.aspx?ev=article&id=654}, language = {English}, urldate = {2022-06-02} } CVE 2014-0322 Malware - Sakurel (Feb 21, 2014)
Sakula RAT
Yara Rules
[TLP:WHITE] win_sakula_rat_auto (20221125 | Detects win.sakula_rat.)
rule win_sakula_rat_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        version = "1"
        description = "Detects win.sakula_rat."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_rule_date = "20221118"
        malpedia_hash = "e0702e2e6d1d00da65c8a29a4ebacd0a4c59e1af"
        malpedia_version = "20221125"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { 6a00 6800010000 6a00 6a00 68???????? }
            // n = 5, score = 300
            //   6a00                 | dec                 eax
            //   6800010000           | mov                 ecx, esi
            //   6a00                 | mov                 dword ptr [esp + 0x28], edi
            //   6a00                 | dec                 eax
            //   68????????           |                     

        $sequence_1 = { 8bf0 56 6a01 57 53 e8???????? 56 }
            // n = 7, score = 200
            //   8bf0                 | push                0
            //   56                   | push                ebx
            //   6a01                 | push                -1
            //   57                   | push                esi
            //   53                   | push                0
            //   e8????????           |                     
            //   56                   | push                eax

        $sequence_2 = { 50 8d8c244c010000 51 ff15???????? }
            // n = 4, score = 200
            //   50                   | push                dword ptr [ebp - 0x14]
            //   8d8c244c010000       | push                1
            //   51                   | push                dword ptr [ebp - 0x10]
            //   ff15????????         |                     

        $sequence_3 = { 6a01 ffd7 85c0 56 0f95c3 }
            // n = 5, score = 200
            //   6a01                 | mov                 cl, byte ptr [eax + 1]
            //   ffd7                 | inc                 eax
            //   85c0                 | add                 edi, 0x18
            //   56                   | push                edi
            //   0f95c3               | mov                 esi, eax

        $sequence_4 = { 8d842448010000 889c244b010000 48 8d642400 8a4801 40 }
            // n = 6, score = 200
            //   8d842448010000       | push                dword ptr [ebp - 0xc]
            //   889c244b010000       | lea                 eax, [ebp - 0xc]
            //   48                   | push                eax
            //   8d642400             | mov                 dword ptr [eax], 0x12c
            //   8a4801               | push                dword ptr [ebp - 8]
            //   40                   | push                0

        $sequence_5 = { 7523 6a00 6880000000 6a01 6a00 6a00 }
            // n = 6, score = 200
            //   7523                 | lea                 ecx, [esp + 0x14c]
            //   6a00                 | push                ecx
            //   6880000000           | lea                 eax, [esp + 0x148]
            //   6a01                 | mov                 byte ptr [esp + 0x14b], bl
            //   6a00                 | dec                 eax
            //   6a00                 | lea                 esp, [esp]

        $sequence_6 = { 83c718 57 e8???????? 8bf0 83c418 }
            // n = 5, score = 200
            //   83c718               | push                0x100
            //   57                   | push                0
            //   e8????????           |                     
            //   8bf0                 | push                0
            //   83c418               | push                0

        $sequence_7 = { 6a00 6a00 53 6aff 56 6a00 }
            // n = 6, score = 200
            //   6a00                 | je                  0xc
            //   6a00                 | cmp                 eax, 0
            //   53                   | je                  0x12
            //   6aff                 | mov                 dword ptr [ebp - 0x14], eax
            //   56                   | cmp                 eax, 0
            //   6a00                 | je                  0x62

        $sequence_8 = { ff15???????? 83f801 0f85ed000000 4c8d05250e0000 }
            // n = 4, score = 100
            //   ff15????????         |                     
            //   83f801               | cmp                 eax, 1
            //   0f85ed000000         | jne                 0xf3
            //   4c8d05250e0000       | dec                 esp

        $sequence_9 = { ff75f8 e8???????? 83c408 ff750c e8???????? }
            // n = 5, score = 100
            //   ff75f8               | mov                 dword ptr [ebp - 8], eax
            //   e8????????           |                     
            //   83c408               | cmp                 eax, 0
            //   ff750c               | je                  0x27
            //   e8????????           |                     

        $sequence_10 = { 8945ec 83f800 745d ff75ec 6a01 ff75f0 ff75f4 }
            // n = 7, score = 100
            //   8945ec               | push                1
            //   83f800               | push                0
            //   745d                 | mov                 al, byte ptr [ebx + ecx]
            //   ff75ec               | cmp                 al, 0
            //   6a01                 | je                  0xb
            //   ff75f0               | cmp                 al, dl
            //   ff75f4               | je                  0xb

        $sequence_11 = { ff15???????? e8???????? 33c9 ff15???????? cc 488b5c2450 488b742460 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   e8????????           |                     
            //   33c9                 | lea                 edx, [ebx + 0x40]
            //   ff15????????         |                     
            //   cc                   | dec                 eax
            //   488b5c2450           | mov                 ecx, dword ptr [esp + 0x58]
            //   488b742460           | xor                 edx, edx

        $sequence_12 = { 8945f0 68ff000000 68???????? 6a04 }
            // n = 4, score = 100
            //   8945f0               | push                0x100
            //   68ff000000           | push                0
            //   68????????           |                     
            //   6a04                 | push                0

        $sequence_13 = { e8???????? 8945f8 83f800 7422 ff75f8 }
            // n = 5, score = 100
            //   e8????????           |                     
            //   8945f8               | mov                 dword ptr [esp + 0x20], ebx
            //   83f800               | xor                 ecx, ecx
            //   7422                 | xor                 ecx, ecx
            //   ff75f8               | int3                

        $sequence_14 = { 33d2 488d4deb 448d426c e8???????? 488bce }
            // n = 5, score = 100
            //   33d2                 | xor                 edx, edx
            //   488d4deb             | xor                 ecx, ecx
            //   448d426c             | mov                 edi, eax
            //   e8????????           |                     
            //   488bce               | test                eax, eax

        $sequence_15 = { 48895dff ff15???????? 8364242800 488364242000 4c8bc6 }
            // n = 5, score = 100
            //   48895dff             | lea                 eax, [0xe25]
            //   ff15????????         |                     
            //   8364242800           | dec                 eax
            //   488364242000         | mov                 dword ptr [ebp - 1], ebx
            //   4c8bc6               | and                 dword ptr [esp + 0x28], 0

        $sequence_16 = { 488364242000 4c8bc6 448bc8 33d2 33c9 ff15???????? 8bf8 }
            // n = 7, score = 100
            //   488364242000         | dec                 esp
            //   4c8bc6               | mov                 eax, esi
            //   448bc8               | lea                 edx, [ebx - 0xf]
            //   33d2                 | dec                 eax
            //   33c9                 | mov                 ecx, dword ptr [esp + 0x58]
            //   ff15????????         |                     
            //   8bf8                 | dec                 eax

        $sequence_17 = { 6a00 e8???????? 83f801 7407 83f800 7408 }
            // n = 6, score = 100
            //   6a00                 | push                dword ptr [ebp - 8]
            //   e8????????           |                     
            //   83f801               | mov                 eax, dword ptr [ebp - 0x24]
            //   7407                 | cmp                 eax, 0
            //   83f800               | je                  0x3f
            //   7408                 | mov                 dword ptr [ebp - 0x28], eax

        $sequence_18 = { 8d53f1 ff15???????? 488b4c2458 ff15???????? }
            // n = 4, score = 100
            //   8d53f1               | dec                 eax
            //   ff15????????         |                     
            //   488b4c2458           | and                 dword ptr [esp + 0x20], 0
            //   ff15????????         |                     

        $sequence_19 = { 8b45dc 83f800 743d 8945d8 6a01 e8???????? 6a00 }
            // n = 7, score = 100
            //   8b45dc               | dec                 eax
            //   83f800               | mov                 ebx, dword ptr [esp + 0x50]
            //   743d                 | dec                 eax
            //   8945d8               | mov                 esi, dword ptr [esp + 0x60]
            //   6a01                 | mov                 dword ptr [ebp - 0x54], 1
            //   e8????????           |                     
            //   6a00                 | mov                 word ptr [ebp - 0x50], bx

        $sequence_20 = { 8a040b 3c00 7409 38d0 7405 }
            // n = 5, score = 100
            //   8a040b               | dec                 eax
            //   3c00                 | mov                 dword ptr [esp + 0x50], ebx
            //   7409                 | dec                 eax
            //   38d0                 | mov                 dword ptr [esp + 0x58], eax
            //   7405                 | push                0

        $sequence_21 = { ff15???????? 85c0 7427 488b4c2450 8d5340 ff15???????? 488b4c2458 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   85c0                 | and                 dword ptr [esp + 0x20], 0
            //   7427                 | dec                 esp
            //   488b4c2450           | mov                 eax, esi
            //   8d5340               | inc                 esp
            //   ff15????????         |                     
            //   488b4c2458           | mov                 ecx, eax

        $sequence_22 = { 897c2428 48895c2420 ff15???????? 33c9 }
            // n = 4, score = 100
            //   897c2428             | je                  0x2b
            //   48895c2420           | dec                 eax
            //   ff15????????         |                     
            //   33c9                 | mov                 ecx, dword ptr [esp + 0x50]

    condition:
        7 of them and filesize < 229376
}
[TLP:WHITE] win_sakula_rat_w0   (20170517 | Sakula v1.0)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/
rule win_sakula_rat_w0 {
    meta:
        description = "Sakula v1.0"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "=%s&type=%d"
        $m4 = "?photoid="
        $m5 = "iexplorer"
                $m6 = "net start \"%s\""
        $v1_1 = "MicroPlayerUpdate.exe"

    condition:
        all of ($m*) and not $v1_1
}
[TLP:WHITE] win_sakula_rat_w1   (20170517 | Sakula v1.1)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_sakula_rat_w1 {
    meta:
        description = "Sakula v1.1"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "=%s&type=%d"
        $m4 = "?photoid="
        $m5 = "iexplorer"
                $m6 = "net start \"%s\""
        $v1_1 = "MicroPlayerUpdate.exe"

    condition:
        all of them
}
[TLP:WHITE] win_sakula_rat_w2   (20170517 | Sakula v1.2)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/


rule win_sakula_rat_w2 {
    meta:
        description = "Sakula v1.2"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "cmd.exe /c rundll32 \"%s\""
        $v1_1 = "MicroPlayerUpdate.exe"
        $v1_2 = "CCPUpdate"

    condition:
        $m1 and $m2 and $m3 and $v1_2 and not $v1_1
}
[TLP:WHITE] win_sakula_rat_w3   (20170517 | Sakula v1.3)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/


rule win_sakula_rat_w3 {
    meta:
        description = "Sakula v1.3"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "cmd.exe /c rundll32 \"%s\""

        $v1_3 = { 81 3E 78 03 00 00 75 57  8D 54 24 14 52 68 0C 05 41 00 68 01 00 00 80 FF  15 00 F0 40 00 85 C0 74 10 8B 44 24 14 68 2C 31  41 00 50 FF 15 10 F0 40 00 8B 4C 24 14 51 FF 15  24 F0 40 00 E8 0F 09 00 }

    condition:
        all of them
}
[TLP:WHITE] win_sakula_rat_w4   (20170517 | Sakula v1.4)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_sakula_rat_w4 {
    meta:
        description = "Sakula v1.4"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "cmd.exe /c rundll32 \"%s\""

        $v1_4 = { 50 E8 CD FC FF FF 83 C4  04 68 E8 03 00 00 FF D7 56 E8 54 12 00 00 E9 AE  FE FF FF E8 13 F5 FF FF }

    condition:
        all of them
}
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