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 (20221125 | Detects win.cuegoe.)
rule win_cuegoe_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-11-21"
        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 = "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 = { c3 8b45ac 2b45a8 6a1c 99 59 f7f9 }
            // n = 7, score = 200
            //   c3                   | ret                 
            //   8b45ac               | mov                 eax, dword ptr [ebp - 0x54]
            //   2b45a8               | sub                 eax, dword ptr [ebp - 0x58]
            //   6a1c                 | push                0x1c
            //   99                   | cdq                 
            //   59                   | pop                 ecx
            //   f7f9                 | idiv                ecx

        $sequence_1 = { ff7540 e8???????? 8d8574ffffff 6a46 50 e8???????? 50 }
            // n = 7, score = 200
            //   ff7540               | push                dword ptr [ebp + 0x40]
            //   e8????????           |                     
            //   8d8574ffffff         | lea                 eax, [ebp - 0x8c]
            //   6a46                 | push                0x46
            //   50                   | push                eax
            //   e8????????           |                     
            //   50                   | push                eax

        $sequence_2 = { 8bca 8b5524 69d2a0860100 807d1000 89b540040000 0f8445000000 897514 }
            // n = 7, score = 200
            //   8bca                 | mov                 ecx, edx
            //   8b5524               | mov                 edx, dword ptr [ebp + 0x24]
            //   69d2a0860100         | imul                edx, edx, 0x186a0
            //   807d1000             | cmp                 byte ptr [ebp + 0x10], 0
            //   89b540040000         | mov                 dword ptr [ebp + 0x440], esi
            //   0f8445000000         | je                  0x4b
            //   897514               | mov                 dword ptr [ebp + 0x14], esi

        $sequence_3 = { ddd9 eb22 c644240f00 ebd8 d9c9 39542410 73ed }
            // n = 7, score = 200
            //   ddd9                 | fstp                st(1)
            //   eb22                 | jmp                 0x24
            //   c644240f00           | mov                 byte ptr [esp + 0xf], 0
            //   ebd8                 | jmp                 0xffffffda
            //   d9c9                 | fxch                st(1)
            //   39542410             | cmp                 dword ptr [esp + 0x10], edx
            //   73ed                 | jae                 0xffffffef

        $sequence_4 = { 394508 0f8210ffffff 8d8548ffffff 68???????? 50 e8???????? 59 }
            // n = 7, score = 200
            //   394508               | cmp                 dword ptr [ebp + 8], eax
            //   0f8210ffffff         | jb                  0xffffff16
            //   8d8548ffffff         | lea                 eax, [ebp - 0xb8]
            //   68????????           |                     
            //   50                   | push                eax
            //   e8????????           |                     
            //   59                   | pop                 ecx

        $sequence_5 = { 8bf4 8965c4 50 e8???????? 83ec1c }
            // n = 5, score = 200
            //   8bf4                 | mov                 esi, esp
            //   8965c4               | mov                 dword ptr [ebp - 0x3c], esp
            //   50                   | push                eax
            //   e8????????           |                     
            //   83ec1c               | sub                 esp, 0x1c

        $sequence_6 = { 8b07 8bc8 c1f905 83e01f c1e006 8b0c8d80cf0310 }
            // n = 6, score = 200
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   8bc8                 | mov                 ecx, eax
            //   c1f905               | sar                 ecx, 5
            //   83e01f               | and                 eax, 0x1f
            //   c1e006               | shl                 eax, 6
            //   8b0c8d80cf0310       | mov                 ecx, dword ptr [ecx*4 + 0x1003cf80]

        $sequence_7 = { c645fc01 e8???????? 8bc6 e8???????? 8d4508 50 }
            // n = 6, score = 200
            //   c645fc01             | mov                 byte ptr [ebp - 4], 1
            //   e8????????           |                     
            //   8bc6                 | mov                 eax, esi
            //   e8????????           |                     
            //   8d4508               | lea                 eax, [ebp + 8]
            //   50                   | push                eax

        $sequence_8 = { e8???????? 84c0 7515 8bc3 e8???????? 663906 7509 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   84c0                 | test                al, al
            //   7515                 | jne                 0x17
            //   8bc3                 | mov                 eax, ebx
            //   e8????????           |                     
            //   663906               | cmp                 word ptr [esi], ax
            //   7509                 | jne                 0xb

        $sequence_9 = { 8d4d28 837d2010 8b450c 7303 8d450c 8d55f8 52 }
            // n = 7, score = 200
            //   8d4d28               | lea                 ecx, [ebp + 0x28]
            //   837d2010             | cmp                 dword ptr [ebp + 0x20], 0x10
            //   8b450c               | mov                 eax, dword ptr [ebp + 0xc]
            //   7303                 | jae                 5
            //   8d450c               | lea                 eax, [ebp + 0xc]
            //   8d55f8               | lea                 edx, [ebp - 8]
            //   52                   | push                edx

    condition:
        7 of them and filesize < 540672
}
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