Analysis

  • max time kernel
    96s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 07:28

General

  • Target

    92af2ca8d014859baa5d3a572ad9dbb33b4174eb01456a9ff3bce2e2b3ccb9aa.exe

  • Size

    511KB

  • MD5

    0c684a9d55e0e5897134f4d64cc81b81

  • SHA1

    27a15ff4d92434e5b46adf69aee8b8470d7c6b32

  • SHA256

    92af2ca8d014859baa5d3a572ad9dbb33b4174eb01456a9ff3bce2e2b3ccb9aa

  • SHA512

    534f9de3c15e0c1498228ce129bd9f53dc0a2d63652b3832c8d2f5c3eb1096e5411a641353c4ec0a75a61bc7a2b930b738c1d680d35cb1e2c52b17d754360f34

  • SSDEEP

    12288:yxlxu5KvDoYTzDXJJSd2DuOcuj7gxSr94u3c1s2:yxlxqockzDwAuMwLud2

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\92af2ca8d014859baa5d3a572ad9dbb33b4174eb01456a9ff3bce2e2b3ccb9aa.exe
    "C:\Users\Admin\AppData\Local\Temp\92af2ca8d014859baa5d3a572ad9dbb33b4174eb01456a9ff3bce2e2b3ccb9aa.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:840
    • C:\Users\Admin\AppData\Local\Temp\n5123\s5123.exe
      "C:\Users\Admin\AppData\Local\Temp\n5123\s5123.exe" d700da038daabbcc5ff2aec7iJQcouG9wJ5Ttutoa8t6ErLG+OPSLAUUNKMWMSp3UmRGOpbBQBfvRvY0vExCjxEemgbNqZMNlMqcuFWzpxKs68Fj5KB8IszXMMkGPMZ2h3+9yp64b97c6h6XObLtja55vijPdy/vdMtFFqoex1uPmfsA /v "C:\Users\Admin\AppData\Local\Temp\92af2ca8d014859baa5d3a572ad9dbb33b4174eb01456a9ff3bce2e2b3ccb9aa.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:5092

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n5123\s5123.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n5123\s5123.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/5092-135-0x00007FFB8D620000-0x00007FFB8E056000-memory.dmp

    Filesize

    10.2MB

  • memory/5092-136-0x000000000093A000-0x000000000093F000-memory.dmp

    Filesize

    20KB

  • memory/5092-137-0x000000000093A000-0x000000000093F000-memory.dmp

    Filesize

    20KB