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 (20220411 | Detects win.cuegoe.)
rule win_cuegoe_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-04-08"
        version = "1"
        description = "Detects win.cuegoe."
        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.cuegoe"
        malpedia_rule_date = "20220405"
        malpedia_hash = "ecd38294bd47d5589be5cd5490dc8bb4804afc2a"
        malpedia_version = "20220411"
        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 = { b8???????? e8???????? db4510 33ff 897dfc 897dec dc0d???????? }
            // n = 7, score = 200
            //   b8????????           |                     
            //   e8????????           |                     
            //   db4510               | fild                dword ptr [ebp + 0x10]
            //   33ff                 | xor                 edi, edi
            //   897dfc               | mov                 dword ptr [ebp - 4], edi
            //   897dec               | mov                 dword ptr [ebp - 0x14], edi
            //   dc0d????????         |                     

        $sequence_1 = { 0f94c1 0fb6d0 89ae40040000 33ca 83c104 894e0c 3b5c2410 }
            // n = 7, score = 200
            //   0f94c1               | sete                cl
            //   0fb6d0               | movzx               edx, al
            //   89ae40040000         | mov                 dword ptr [esi + 0x440], ebp
            //   33ca                 | xor                 ecx, edx
            //   83c104               | add                 ecx, 4
            //   894e0c               | mov                 dword ptr [esi + 0xc], ecx
            //   3b5c2410             | cmp                 ebx, dword ptr [esp + 0x10]

        $sequence_2 = { 0fb6ca 80e101 02c9 02c9 d3e8 8b8d500c0000 89542410 }
            // n = 7, score = 200
            //   0fb6ca               | movzx               ecx, dl
            //   80e101               | and                 cl, 1
            //   02c9                 | add                 cl, cl
            //   02c9                 | add                 cl, cl
            //   d3e8                 | shr                 eax, cl
            //   8b8d500c0000         | mov                 ecx, dword ptr [ebp + 0xc50]
            //   89542410             | mov                 dword ptr [esp + 0x10], edx

        $sequence_3 = { e8???????? c3 55 8bec 837d1000 56 8bf0 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   c3                   | ret                 
            //   55                   | push                ebp
            //   8bec                 | mov                 ebp, esp
            //   837d1000             | cmp                 dword ptr [ebp + 0x10], 0
            //   56                   | push                esi
            //   8bf0                 | mov                 esi, eax

        $sequence_4 = { 50 e8???????? 83c410 ff15???????? 50 8d8574ffffff 6a44 }
            // n = 7, score = 200
            //   50                   | push                eax
            //   e8????????           |                     
            //   83c410               | add                 esp, 0x10
            //   ff15????????         |                     
            //   50                   | push                eax
            //   8d8574ffffff         | lea                 eax, dword ptr [ebp - 0x8c]
            //   6a44                 | push                0x44

        $sequence_5 = { 6a07 5b 33c0 895d50 897d4c 6689453c }
            // n = 6, score = 200
            //   6a07                 | push                7
            //   5b                   | pop                 ebx
            //   33c0                 | xor                 eax, eax
            //   895d50               | mov                 dword ptr [ebp + 0x50], ebx
            //   897d4c               | mov                 dword ptr [ebp + 0x4c], edi
            //   6689453c             | mov                 word ptr [ebp + 0x3c], ax

        $sequence_6 = { ff449004 8d549004 41 3bcf 7cef 8d4808 bf0b000000 }
            // n = 7, score = 200
            //   ff449004             | inc                 dword ptr [eax + edx*4 + 4]
            //   8d549004             | lea                 edx, dword ptr [eax + edx*4 + 4]
            //   41                   | inc                 ecx
            //   3bcf                 | cmp                 ecx, edi
            //   7cef                 | jl                  0xfffffff1
            //   8d4808               | lea                 ecx, dword ptr [eax + 8]
            //   bf0b000000           | mov                 edi, 0xb

        $sequence_7 = { 0fb70c53 6685c9 75ee 8b7dc4 6a00 8d75d4 e8???????? }
            // n = 7, score = 200
            //   0fb70c53             | movzx               ecx, word ptr [ebx + edx*2]
            //   6685c9               | test                cx, cx
            //   75ee                 | jne                 0xfffffff0
            //   8b7dc4               | mov                 edi, dword ptr [ebp - 0x3c]
            //   6a00                 | push                0
            //   8d75d4               | lea                 esi, dword ptr [ebp - 0x2c]
            //   e8????????           |                     

        $sequence_8 = { 8d7540 e8???????? 33db 8d75c0 e8???????? ff75c0 e8???????? }
            // n = 7, score = 200
            //   8d7540               | lea                 esi, dword ptr [ebp + 0x40]
            //   e8????????           |                     
            //   33db                 | xor                 ebx, ebx
            //   8d75c0               | lea                 esi, dword ptr [ebp - 0x40]
            //   e8????????           |                     
            //   ff75c0               | push                dword ptr [ebp - 0x40]
            //   e8????????           |                     

        $sequence_9 = { 8a0b 3a08 751e 85ff 750e 8d45b8 }
            // n = 6, score = 200
            //   8a0b                 | mov                 cl, byte ptr [ebx]
            //   3a08                 | cmp                 cl, byte ptr [eax]
            //   751e                 | jne                 0x20
            //   85ff                 | test                edi, edi
            //   750e                 | jne                 0x10
            //   8d45b8               | lea                 eax, dword ptr [ebp - 0x48]

    condition:
        7 of them and filesize < 540672
}
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