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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/09/2024, 22:15

General

  • Target

    dd250e85c6fad8c3134e56c9b198e7db_JaffaCakes118.dll

  • Size

    71KB

  • MD5

    dd250e85c6fad8c3134e56c9b198e7db

  • SHA1

    a6876a0cdbd31f977294951d7f77f8a96d8a4fb0

  • SHA256

    b241c86379ee2163b8825ceb166fc1119f631725bd431601c0bac05c852cdacc

  • SHA512

    9c40e7d704751b1c5f012516ef52797d5ea562a449e2beea959b1fbc75645376ba27d06684efc34a641bd81f7cd1e857975d18ac80b6631092c491974e6c922b

  • SSDEEP

    768:0kSpisvuzgdwMG9hl7c1M5uEcnZ99AOTCSq33cSp38MpMXTnkx+UZJnbkpHx4BnU:9SplSbm1rtAO+MkMMpwD4nJnbhBn49

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd250e85c6fad8c3134e56c9b198e7db_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd250e85c6fad8c3134e56c9b198e7db_JaffaCakes118.dll,#1
      2⤵
      • Checks computer location settings
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4756
      • C:\Windows\SysWOW64\regedit.exe
        regedit.exe -s "C:\Users\Admin\AppData\Local\Temp\jpvteqreg.reg"
        3⤵
        • System Location Discovery: System Language Discovery
        • Runs .reg file with regedit
        PID:2628
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" "C:\Program Files\Common Files\Microsoft Shared\jpvteq.dll",polmxhat
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\Microsoft Shared\jpvteq.dll

    Filesize

    71KB

    MD5

    dd250e85c6fad8c3134e56c9b198e7db

    SHA1

    a6876a0cdbd31f977294951d7f77f8a96d8a4fb0

    SHA256

    b241c86379ee2163b8825ceb166fc1119f631725bd431601c0bac05c852cdacc

    SHA512

    9c40e7d704751b1c5f012516ef52797d5ea562a449e2beea959b1fbc75645376ba27d06684efc34a641bd81f7cd1e857975d18ac80b6631092c491974e6c922b