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Analysis

  • max time kernel
    60s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 12:33

General

  • Target

    8f666c5a53c9f404b6511d721950cd1a98fadb583038b5abecb80246cce0108b.exe

  • Size

    601KB

  • MD5

    5d0a86e3a779bf49a1255a7ef594dc23

  • SHA1

    78528594acc8866d5319acbb9692a08e98636859

  • SHA256

    8f666c5a53c9f404b6511d721950cd1a98fadb583038b5abecb80246cce0108b

  • SHA512

    26d0aa1a8e34d6e290d5eddd5ee7404151568b33d539fb0cbf1d227e0f516aff8b66cd86104ef16e61f2128cea4d42a33cfafeb46d76d06aadee2a6903436752

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAdR:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4AD

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 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f666c5a53c9f404b6511d721950cd1a98fadb583038b5abecb80246cce0108b.exe
    "C:\Users\Admin\AppData\Local\Temp\8f666c5a53c9f404b6511d721950cd1a98fadb583038b5abecb80246cce0108b.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:4044
    • C:\Users\Admin\AppData\Local\Temp\n340\s340.exe
      "C:\Users\Admin\AppData\Local\Temp\n340\s340.exe" 3c4af2e516232e5a5f2e901e7qm0EVZTY8RltcRcF+QAHrUBtX7ithrGdEwoVxaxCRGUt9C6gI/FlamV5YwMK3lJmpeEjAw+q4Pj5SpQfBWE6KWpH6faLQ0CCoCMFBEJsPoYPZa5RC8e172PtEzIRMpTnec1CQjzeaFBpkXts3Mf8JnG7WX7yLs+iBc+MC0= /v "C:\Users\Admin\AppData\Local\Temp\8f666c5a53c9f404b6511d721950cd1a98fadb583038b5abecb80246cce0108b.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:400

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n340\s340.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • C:\Users\Admin\AppData\Local\Temp\n340\s340.exe

    Filesize

    349KB

    MD5

    f42490846128abad3a6504a02c9ef12c

    SHA1

    017da52f785d1385ee7fd9a5bcb2550096166385

    SHA256

    19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

    SHA512

    983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

  • memory/400-135-0x00007FFD0E900000-0x00007FFD0F336000-memory.dmp

    Filesize

    10.2MB

  • memory/400-136-0x00000000018CA000-0x00000000018CF000-memory.dmp

    Filesize

    20KB

  • memory/400-137-0x00000000018CA000-0x00000000018CF000-memory.dmp

    Filesize

    20KB