Analysis

  • max time kernel
    183s
  • max time network
    248s
  • 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 21:54

General

  • Target

    3cf51f8a83391b4afa4e07394cbb6f0c3776475f83fe6dcb69be58ba29024054.exe

  • Size

    512KB

  • MD5

    d1d7c8765bea59d08ad750a555435499

  • SHA1

    3d71128d27cff0f7ef16dcebc1ff133d9823a3a2

  • SHA256

    3cf51f8a83391b4afa4e07394cbb6f0c3776475f83fe6dcb69be58ba29024054

  • SHA512

    32b70b8d17d39c94f602c79b959df90d0b7e02a7a8edcef50bd1fd8d55021134685a9b74bae09887908413372cffab5b0627b83715939bbc8b963b14c17bc197

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E41:0+h9OY70z+warul3E41

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 3 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\3cf51f8a83391b4afa4e07394cbb6f0c3776475f83fe6dcb69be58ba29024054.exe
    "C:\Users\Admin\AppData\Local\Temp\3cf51f8a83391b4afa4e07394cbb6f0c3776475f83fe6dcb69be58ba29024054.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:4572
    • C:\Users\Admin\AppData\Local\Temp\n2124\s2124.exe
      "C:\Users\Admin\AppData\Local\Temp\n2124\s2124.exe" 575de1ce1b9d0c579760936bvI0j5cMb9Vm+ZIb25eyZPGfTiOaHPA/WDbw7pm1VEx66OYOze1WvjaVS7+znPDS9V9FoeOKJAbrtRJEzA2T1Dc9yFLZ7sKmwuYSJ64iYowSWjIUEtbqlF6x3cW5lX/sQ5O65P5QxhVLJSQaLjtYkIXk= /v "C:\Users\Admin\AppData\Local\Temp\3cf51f8a83391b4afa4e07394cbb6f0c3776475f83fe6dcb69be58ba29024054.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:1064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n2124\s2124.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n2124\s2124.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1064-136-0x0000000000E50000-0x0000000000E60000-memory.dmp

    Filesize

    64KB

  • memory/1064-137-0x0000000000E50000-0x0000000000E60000-memory.dmp

    Filesize

    64KB