Analysis

  • max time kernel
    60s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 21:43

General

  • Target

    PO#7A68D20.exe

  • Size

    769KB

  • MD5

    5c777e4901a8f4175342bca7978ee3d5

  • SHA1

    ebc2a18781d087ed9fd7e43467f0da354c17d8c3

  • SHA256

    b54934cb8e1ff68d2c4306e5a6eb0f9e649ad1680960253c0cfa0c35a6c4d313

  • SHA512

    1113200c02673171d0e1ff8b9d049deea3a23c9e64f9ad211b0f99a5d8876f590a89e0fb6a57a32d90d686c2aa76df3bc496ac09e2ad8dec8750d11593947720

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe
    "C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Users\Admin\AppData\Local\Temp\PO#7A68D20.exe
      "{path}"
      2⤵
      • Modifies system executable filetype association
      • Checks computer location settings
      • Drops file in Windows directory
      • Modifies registry class
      PID:1976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1928-130-0x0000000074D70000-0x0000000075321000-memory.dmp

    Filesize

    5.7MB

  • memory/1976-134-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1976-133-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1976-132-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1976-135-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1976-131-0x0000000000000000-mapping.dmp