SYMBOLCOMMON_NAMEaka. SYNONYMS
win.cuegoe (Back to overview)

Cuegoe

Actor(s): APT32


There is no description at this point.

References
2017-05-14FireEyeNick Carr
@online{carr:20170514:cyber:0ac720f, author = {Nick Carr}, title = {{Cyber Espionage is Alive and Well: APT32 and the Threat to Global Corporations}}, date = {2017-05-14}, organization = {FireEye}, url = {https://www.fireeye.com/blog/threat-research/2017/05/cyber-espionage-apt32.html}, language = {English}, urldate = {2019-12-20} } Cyber Espionage is Alive and Well: APT32 and the Threat to Global Corporations
OceanLotus Cuegoe KOMPROGO SOUNDBITE APT32
2014-08-24Malware Must Die!unixfreaxjp
@online{unixfreaxjp:20140824:another:e402338, author = {unixfreaxjp}, title = {{Another country-sponsored #malware: Vietnam APT Campaign}}, date = {2014-08-24}, organization = {Malware Must Die!}, url = {http://blog.malwaremustdie.org/2014/08/another-country-sponsored-malware.html}, language = {English}, urldate = {2020-01-12} } Another country-sponsored #malware: Vietnam APT Campaign
Cuegoe
2014-01-19Electronic Frontier FoundationEva Galperin, Morgan Marquis-Boire
@online{galperin:20140119:vietnamese:6ff15b6, author = {Eva Galperin and Morgan Marquis-Boire}, title = {{Vietnamese Malware Gets Very Personal}}, date = {2014-01-19}, organization = {Electronic Frontier Foundation}, url = {https://www.eff.org/deeplinks/2014/01/vietnamese-malware-gets-personal}, language = {English}, urldate = {2020-01-13} } Vietnamese Malware Gets Very Personal
Cuegoe
Yara Rules
[TLP:WHITE] win_cuegoe_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_cuegoe_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cuegoe"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        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 = { 8d44240c 50 89742410 896c2420 894c2414 89542424 e8???????? }
            // n = 7, score = 200
            //   8d44240c             | lea                 eax, [esp + 0xc]
            //   50                   | push                eax
            //   89742410             | mov                 dword ptr [esp + 0x10], esi
            //   896c2420             | mov                 dword ptr [esp + 0x20], ebp
            //   894c2414             | mov                 dword ptr [esp + 0x14], ecx
            //   89542424             | mov                 dword ptr [esp + 0x24], edx
            //   e8????????           |                     

        $sequence_1 = { 837e1808 7205 8b7604 eb03 83c604 8d45f8 50 }
            // n = 7, score = 200
            //   837e1808             | cmp                 dword ptr [esi + 0x18], 8
            //   7205                 | jb                  7
            //   8b7604               | mov                 esi, dword ptr [esi + 4]
            //   eb03                 | jmp                 5
            //   83c604               | add                 esi, 4
            //   8d45f8               | lea                 eax, [ebp - 8]
            //   50                   | push                eax

        $sequence_2 = { 897dfc 3b1cfdd0ba0310 7409 47 897dfc 83ff17 72ee }
            // n = 7, score = 200
            //   897dfc               | mov                 dword ptr [ebp - 4], edi
            //   3b1cfdd0ba0310       | cmp                 ebx, dword ptr [edi*8 + 0x1003bad0]
            //   7409                 | je                  0xb
            //   47                   | inc                 edi
            //   897dfc               | mov                 dword ptr [ebp - 4], edi
            //   83ff17               | cmp                 edi, 0x17
            //   72ee                 | jb                  0xfffffff0

        $sequence_3 = { 83caff 8b4500 83780400 0f8485feffff 8b18 0fb61b 8b751c }
            // n = 7, score = 200
            //   83caff               | or                  edx, 0xffffffff
            //   8b4500               | mov                 eax, dword ptr [ebp]
            //   83780400             | cmp                 dword ptr [eax + 4], 0
            //   0f8485feffff         | je                  0xfffffe8b
            //   8b18                 | mov                 ebx, dword ptr [eax]
            //   0fb61b               | movzx               ebx, byte ptr [ebx]
            //   8b751c               | mov                 esi, dword ptr [ebp + 0x1c]

        $sequence_4 = { e8???????? 834dfcff 83c410 8d4da4 8bf0 }
            // n = 5, score = 200
            //   e8????????           |                     
            //   834dfcff             | or                  dword ptr [ebp - 4], 0xffffffff
            //   83c410               | add                 esp, 0x10
            //   8d4da4               | lea                 ecx, [ebp - 0x5c]
            //   8bf0                 | mov                 esi, eax

        $sequence_5 = { 55 8bac2488000000 8b4504 8b5d00 56 57 83f80a }
            // n = 7, score = 200
            //   55                   | push                ebp
            //   8bac2488000000       | mov                 ebp, dword ptr [esp + 0x88]
            //   8b4504               | mov                 eax, dword ptr [ebp + 4]
            //   8b5d00               | mov                 ebx, dword ptr [ebp]
            //   56                   | push                esi
            //   57                   | push                edi
            //   83f80a               | cmp                 eax, 0xa

        $sequence_6 = { 0f84fa000000 807b4100 0f84f0000000 8b03 6aff ff5004 83f8ff }
            // n = 7, score = 200
            //   0f84fa000000         | je                  0x100
            //   807b4100             | cmp                 byte ptr [ebx + 0x41], 0
            //   0f84f0000000         | je                  0xf6
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   6aff                 | push                -1
            //   ff5004               | call                dword ptr [eax + 4]
            //   83f8ff               | cmp                 eax, -1

        $sequence_7 = { 8db788bb0310 ff36 e8???????? 83c704 59 8906 }
            // n = 6, score = 200
            //   8db788bb0310         | lea                 esi, [edi + 0x1003bb88]
            //   ff36                 | push                dword ptr [esi]
            //   e8????????           |                     
            //   83c704               | add                 edi, 4
            //   59                   | pop                 ecx
            //   8906                 | mov                 dword ptr [esi], eax

        $sequence_8 = { 894610 895e0c eb38 85db 760e 53 ff7508 }
            // n = 7, score = 200
            //   894610               | mov                 dword ptr [esi + 0x10], eax
            //   895e0c               | mov                 dword ptr [esi + 0xc], ebx
            //   eb38                 | jmp                 0x3a
            //   85db                 | test                ebx, ebx
            //   760e                 | jbe                 0x10
            //   53                   | push                ebx
            //   ff7508               | push                dword ptr [ebp + 8]

        $sequence_9 = { 50 ff15???????? 33c0 40 c20c00 837c240c00 740a }
            // n = 7, score = 200
            //   50                   | push                eax
            //   ff15????????         |                     
            //   33c0                 | xor                 eax, eax
            //   40                   | inc                 eax
            //   c20c00               | ret                 0xc
            //   837c240c00           | cmp                 dword ptr [esp + 0xc], 0
            //   740a                 | je                  0xc

    condition:
        7 of them and filesize < 540672
}
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