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Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 14:41

General

  • Target

    8018688837cddbc6e01a729ebd88cb41.exe

  • Size

    540KB

  • MD5

    8018688837cddbc6e01a729ebd88cb41

  • SHA1

    dd1d4341340c77ecd7345f2b537fa6281ca186a3

  • SHA256

    e67910442a47a80b2d0f01be4e99339586d2476000a9ada39b3787ee8361f8fc

  • SHA512

    4e5ecab5b4576627bb474cacaf9ab135f22a5e11e99a935c7b136f0874fd425a56041eaa594d049cf8ec835168359b99079b371a8efe57d2146f710c20ed9bec

  • SSDEEP

    12288:oFZCv7TnOqMiWaf7BI3aJdJZie1LRgT4y9MMnMMMMMtM/E:UZCzTOqx97BRa0OLMMnMMMMMt

Score
8/10

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8018688837cddbc6e01a729ebd88cb41.exe
    "C:\Users\Admin\AppData\Local\Temp\8018688837cddbc6e01a729ebd88cb41.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1216
    • C:\ProgramData\sAaAVcAvvOACS.exe
      "C:\ProgramData\sAaAVcAvvOACS.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:4492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\sAaAVcAvvOACS.exe

    Filesize

    338KB

    MD5

    4454d483b9294fb8f225de3c9de6cc1f

    SHA1

    6aef119f2dadb048cd5389251380bc1530d178a3

    SHA256

    3072d261ed659927112167513668876a4e2a15ee0bc6933de783c6afab59c531

    SHA512

    7fa996f26657419d8ca2b210c980a6b6087fc17489834b1bcf23aeacb1e2634fac1b535fd4af317683a5456354884c40979fb63801467146fbf5766548f0535f

  • C:\ProgramData\sAaAVcAvvOACS.exe

    Filesize

    298KB

    MD5

    62bb0d6b475354e53e7fd73d8e3b02ec

    SHA1

    e522c95a89f53b33a920ade37bd51d87ff93d685

    SHA256

    e0f1a29ad69a073f1ebc509852728e7d58509f83c833f4ad9aa326551d62d3fc

    SHA512

    170a2466f3e233237c02091ab8efc03d143ed5b1554b5da089e530a22469dfa0e82649a55d6f1bd89b5d0842683eb6d3b4a276e6d606bb2dddd453341680e456

  • C:\ProgramData\sAaAVcAvvOACS.exe

    Filesize

    399KB

    MD5

    5ac99f1f6a847b6bea0e9bfedf889d60

    SHA1

    6757566c9c1314cb12bf77798b9f690086f83610

    SHA256

    c567c3f1e595d8f60aa13fd2c279aad03bce50f735c53026d9928508f6faf5a7

    SHA512

    86f370961a92db1c7a94f0c1270403ee63494192c43fcbba588315b36fe5b6b1bbf9282618bada95a389eab561c0032b50f8876c446ca4334f156138bfe58a7a

  • memory/1216-1-0x0000000000400000-0x000000000067E000-memory.dmp

    Filesize

    2.5MB

  • memory/1216-0-0x0000000002490000-0x0000000002630000-memory.dmp

    Filesize

    1.6MB

  • memory/1216-21-0x0000000000400000-0x000000000067E000-memory.dmp

    Filesize

    2.5MB

  • memory/4492-13-0x0000000000400000-0x000000000067E000-memory.dmp

    Filesize

    2.5MB