Analysis

  • max time kernel
    208s
  • max time network
    235s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 13:21

General

  • Target

    acfc39bd3a2e2853763f458fa3a7549baa54774561aad0eea54c2d14fd03fad7.exe

  • Size

    601KB

  • MD5

    d299e323405edbf6e7a496c45c218c17

  • SHA1

    b421c0f83b8ac7d94097d099f2e6f851035df0f7

  • SHA256

    acfc39bd3a2e2853763f458fa3a7549baa54774561aad0eea54c2d14fd03fad7

  • SHA512

    f357b5a9c41cf9e4f809b4e97334f102840b8b764c48403e631f31318c6287138bc899adeb85da8c0bd692ad67f105d945719ef76a3aa25a20072feab6f9bbdf

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAde:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4Aw

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acfc39bd3a2e2853763f458fa3a7549baa54774561aad0eea54c2d14fd03fad7.exe
    "C:\Users\Admin\AppData\Local\Temp\acfc39bd3a2e2853763f458fa3a7549baa54774561aad0eea54c2d14fd03fad7.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4272
    • C:\Users\Admin\AppData\Local\Temp\n7498\s7498.exe
      "C:\Users\Admin\AppData\Local\Temp\n7498\s7498.exe" 464a83faa98bfc8cee3d10fes8g6s6Do4iTq6c9ROmQBSgpiLbfoQ3YLkt15B+FhfEsLOqcKjHM5v07TPKI201wW84Ac9DwPqbdRTFhpL07fikMVMjRFNBiLF27X631j0OxCt8aMzQHPZ1TASf6pe4HBJvv4fibDiE0+VTYpgEaZiZ0JMNqI54yjWpxPZCk= /v "C:\Users\Admin\AppData\Local\Temp\acfc39bd3a2e2853763f458fa3a7549baa54774561aad0eea54c2d14fd03fad7.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      PID:868

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7498\s7498.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • C:\Users\Admin\AppData\Local\Temp\n7498\s7498.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • memory/868-132-0x0000000000000000-mapping.dmp

  • memory/868-135-0x00007FFEAE260000-0x00007FFEAEC96000-memory.dmp

    Filesize

    10.2MB