Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 00:41

General

  • Target

    2f55fc03f2d2b24ef7a91e1735d53476e78e425f68b6389abb61324fe07ad3c7.exe

  • Size

    168KB

  • MD5

    1e51f1490f447692da67d1518074b07a

  • SHA1

    6f5072d0895787fa676369695c256ee5e08bb1d7

  • SHA256

    2f55fc03f2d2b24ef7a91e1735d53476e78e425f68b6389abb61324fe07ad3c7

  • SHA512

    708bb5ce72376e35ea2617ce582f1d850b5c1d02e8da0cbce22ed606717d74fedb567ddad0d0a30c01fc87b69248d4281677d80a123fde72c53a10609ef727cb

  • SSDEEP

    1536:2yP6gbdc30f8kX8PsHy244nDUnBC2U6ge:V6gbdcEf8kX8PsHy244nDUnBC28e

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • 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 51 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f55fc03f2d2b24ef7a91e1735d53476e78e425f68b6389abb61324fe07ad3c7.exe
    "C:\Users\Admin\AppData\Local\Temp\2f55fc03f2d2b24ef7a91e1735d53476e78e425f68b6389abb61324fe07ad3c7.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\yaoaqa.exe
      "C:\Users\Admin\yaoaqa.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:8

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\yaoaqa.exe

    Filesize

    168KB

    MD5

    73921b98948d919aca63513648150450

    SHA1

    1d71c681ee091ea2a682ae9dc0cd9e86933dcfda

    SHA256

    1137e2f1f0b99fccb3d8ed741cc711d74bc0d100f9b2693ba01c43a341dfb218

    SHA512

    8df7e3f2dd0e6870f99474e499f8207d96645459f7c47ec8e189a64a916afabecd72a671f4c71a4c5790bdfe0e9db00fd2950bca53cffa030917db97400a9c79

  • memory/8-33-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/8-38-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1268-0-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1268-37-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB