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Analysis

  • max time kernel
    81s
  • max time network
    144s
  • 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, 16:51

General

  • Target

    a05ecfe0243775993c92f0f49d9fce0ad014630bc61277ae95c2fb4668b5c0b1.exe

  • Size

    512KB

  • MD5

    7256cefe0747e0bd68b635ae6ac0378c

  • SHA1

    2f8a0108922fed80ed8f1746b9c8590919c90103

  • SHA256

    a05ecfe0243775993c92f0f49d9fce0ad014630bc61277ae95c2fb4668b5c0b1

  • SHA512

    e37c29435c6afe6e07b960aa4f533f36511f28659e3b5f41100b015dbc0b90784dc925f5ec9e2090c2faad5e449d7103d7b61b032efa43325c4eefb6d053ba35

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4T:0+h9OY70z+warul3E4T

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 5 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\a05ecfe0243775993c92f0f49d9fce0ad014630bc61277ae95c2fb4668b5c0b1.exe
    "C:\Users\Admin\AppData\Local\Temp\a05ecfe0243775993c92f0f49d9fce0ad014630bc61277ae95c2fb4668b5c0b1.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:4444
    • C:\Users\Admin\AppData\Local\Temp\n9704\s9704.exe
      "C:\Users\Admin\AppData\Local\Temp\n9704\s9704.exe" 4ebf4fc16ba59faab61c93d5MX61auzXNqmNTFAOwsKiND6HuVu5ckP2ezKUU5lWQ3WVp4Y/RRteD3ziDcYIJSi94Ru2ctWAFVOWnMPUYYf1br/E+Sp1CwoshE/O7hHZrE4Gx8UkMyJcFB6Yi1g54F9VzKR5wF1j8mVMazZkPdo4iaZI /v "C:\Users\Admin\AppData\Local\Temp\a05ecfe0243775993c92f0f49d9fce0ad014630bc61277ae95c2fb4668b5c0b1.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:5072

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n9704\s9704.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n9704\s9704.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/5072-135-0x00007FFA30BF0000-0x00007FFA31626000-memory.dmp

    Filesize

    10.2MB

  • memory/5072-136-0x00000000013FA000-0x00000000013FF000-memory.dmp

    Filesize

    20KB

  • memory/5072-137-0x00000000013FA000-0x00000000013FF000-memory.dmp

    Filesize

    20KB