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Analysis

  • max time kernel
    150s
  • max time network
    178s
  • 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, 01:46

General

  • Target

    2705d255808e0c6e071c724b7b3a5eb8cf1d45f7f7c54f7eaafec647d9339488.exe

  • Size

    512KB

  • MD5

    a08471b4cd151f3794b3760349bc9fa4

  • SHA1

    ce420acde45c2f0ab9a7c7217070c68e7961b092

  • SHA256

    2705d255808e0c6e071c724b7b3a5eb8cf1d45f7f7c54f7eaafec647d9339488

  • SHA512

    0100dc69cd78cf26543ee65cff4aa8dc5875a3b4fd0173b96dc2289c2fa53c732c0f5181dc1a1c950d4d357cca88f1b643acf72b887fb8200ad18e2627459349

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4U:0+h9OY70z+warul3E4U

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\2705d255808e0c6e071c724b7b3a5eb8cf1d45f7f7c54f7eaafec647d9339488.exe
    "C:\Users\Admin\AppData\Local\Temp\2705d255808e0c6e071c724b7b3a5eb8cf1d45f7f7c54f7eaafec647d9339488.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:5080
    • C:\Users\Admin\AppData\Local\Temp\n5189\s5189.exe
      "C:\Users\Admin\AppData\Local\Temp\n5189\s5189.exe" bf20c29130f0e4bdabb263ffsHKqZ6WIdDc8m2TvINnA74WEgxQBU9cwBbChH2tO3Jmle89wfzvfXIQoI8c2CSYLcI+PxTw7J2hQjqKlP875UapBUPRhK+uiIVn2CPS1U2YtFbtw8r8DXWvaH72+wktYpAGV9em3FXv8EG00j/2MIMxF /v "C:\Users\Admin\AppData\Local\Temp\2705d255808e0c6e071c724b7b3a5eb8cf1d45f7f7c54f7eaafec647d9339488.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:1672

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n5189\s5189.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n5189\s5189.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1672-135-0x00007FFF7A370000-0x00007FFF7ADA6000-memory.dmp

    Filesize

    10.2MB

  • memory/1672-136-0x0000000000F2A000-0x0000000000F2F000-memory.dmp

    Filesize

    20KB

  • memory/1672-137-0x0000000000F2A000-0x0000000000F2F000-memory.dmp

    Filesize

    20KB

  • memory/1672-138-0x0000000000F2A000-0x0000000000F2F000-memory.dmp

    Filesize

    20KB