Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-06-2024 05:03

General

  • Target

    a8161fc2450910fa3c987d365c5abdd2_JaffaCakes118.exe

  • Size

    675KB

  • MD5

    a8161fc2450910fa3c987d365c5abdd2

  • SHA1

    37e293b8d92466d0d55c23da0e9e204460632d21

  • SHA256

    217aaf801e0f72351d96d1cd38a90377322ff63a3cd6a4f7620e46a984ac2636

  • SHA512

    dd3b4f2196ac8511be9294e988449c32c9218a0e54156da1ef57f73994022d7d054fdcbb9488323c79a82f4d325e3474f361df7574d55ec02b51d702366d0912

  • SSDEEP

    12288:vNxt2GCQZwqLIMRBeZHaElEZlBiZGXEtdrIsydYSYjXDwiYhT+632:1xt2n6IQ2aEiriZUEtqr+ljXUiYF+632

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • 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).

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8161fc2450910fa3c987d365c5abdd2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a8161fc2450910fa3c987d365c5abdd2_JaffaCakes118.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:920
    • C:\Users\Admin\AppData\Local\Temp\n3817\s3817.exe
      "C:\Users\Admin\AppData\Local\Temp\n3817\s3817.exe" 9afe17374a8f516a208e410bxB3+IjvnBLHJG942GcoLK2VCRZetYHa3W41izOrX0QyANZuS5sQK3eJM0rxB4zfC2oEotNfsYlN6sjLGiK1qeyXyPc13K6N34P4JHRXDiNNcwKXhDfm1SskobC0oFKCTsdvlQ/cnQpHY4jlCA9F/8gSoIsPcLaR3ZaYfQ1RM /v "C:\Users\Admin\AppData\Local\Temp\a8161fc2450910fa3c987d365c5abdd2_JaffaCakes118.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
      PID:3188

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3817\s3817.exe

    Filesize

    350KB

    MD5

    d438749bcfe5bcdf1d59cbbb82341315

    SHA1

    2f4176c631e0190f35eb2963a4f8ad692fdcd6b7

    SHA256

    0aa566ada2feeb1714acd636da309edc6c3a9b0b8873d97942b55e053e55dd42

    SHA512

    f6ea2cf132c6564d685a6386705f2ff9b3912697f70d3e97e1754084c6c589141f3f72d6d82eeb6cc677a331325ab486389b1e3a202b7b21149499e8c020c67e

  • memory/3188-12-0x00007FFFD4725000-0x00007FFFD4726000-memory.dmp

    Filesize

    4KB

  • memory/3188-13-0x00007FFFD4470000-0x00007FFFD4E11000-memory.dmp

    Filesize

    9.6MB

  • memory/3188-27-0x000000001C2C0000-0x000000001C2D0000-memory.dmp

    Filesize

    64KB

  • memory/3188-30-0x000000001CEA0000-0x000000001D36E000-memory.dmp

    Filesize

    4.8MB

  • memory/3188-31-0x000000001C8B0000-0x000000001C94C000-memory.dmp

    Filesize

    624KB

  • memory/3188-32-0x00007FFFD4470000-0x00007FFFD4E11000-memory.dmp

    Filesize

    9.6MB

  • memory/3188-33-0x000000001D450000-0x000000001D4B2000-memory.dmp

    Filesize

    392KB

  • memory/3188-34-0x00007FFFD4470000-0x00007FFFD4E11000-memory.dmp

    Filesize

    9.6MB

  • memory/3188-35-0x00007FFFD4470000-0x00007FFFD4E11000-memory.dmp

    Filesize

    9.6MB

  • memory/3188-36-0x0000000021710000-0x0000000021C1E000-memory.dmp

    Filesize

    5.1MB

  • memory/3188-38-0x00007FFFD4470000-0x00007FFFD4E11000-memory.dmp

    Filesize

    9.6MB