Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 02:36

General

  • Target

    9213073f63c1542315acdad27c0b8b78_JaffaCakes118.exe

  • Size

    360KB

  • MD5

    9213073f63c1542315acdad27c0b8b78

  • SHA1

    77b5765cd37ccfb7608611291d66e68b7d68e2dc

  • SHA256

    1356acd718a156e106163e91fa87a415e4f6855606d2712d8408d65190a95dad

  • SHA512

    9ae5d76345825b0cd012d4ce8189a1b6864b3d76be93ae7fad22eb28387097346213d7763a989098ae2dd5a921afd3ab8ef72cc308d4d9bfc8e7e7efa3a92735

  • SSDEEP

    6144:YaaRWvS8RStjunQ/ocbbOeEQZlPX6kKhWbyFqoMU2sEEbsOI/4Yi:YFWvNS8EE4+WOeU22bnI/4Yi

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9213073f63c1542315acdad27c0b8b78_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9213073f63c1542315acdad27c0b8b78_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Windows\wwlvmcpexxbf.exe
      C:\Windows\wwlvmcpexxbf.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:380
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 772
        3⤵
        • Program crash
        PID:1592
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\921307~1.EXE
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4896
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 380 -ip 380
    1⤵
      PID:2168

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\wwlvmcpexxbf.exe

      Filesize

      360KB

      MD5

      9213073f63c1542315acdad27c0b8b78

      SHA1

      77b5765cd37ccfb7608611291d66e68b7d68e2dc

      SHA256

      1356acd718a156e106163e91fa87a415e4f6855606d2712d8408d65190a95dad

      SHA512

      9ae5d76345825b0cd012d4ce8189a1b6864b3d76be93ae7fad22eb28387097346213d7763a989098ae2dd5a921afd3ab8ef72cc308d4d9bfc8e7e7efa3a92735

    • memory/380-9-0x0000000002180000-0x0000000002206000-memory.dmp

      Filesize

      536KB

    • memory/380-15-0x0000000000400000-0x000000000049D000-memory.dmp

      Filesize

      628KB

    • memory/380-16-0x0000000002180000-0x0000000002206000-memory.dmp

      Filesize

      536KB

    • memory/1720-0-0x0000000002170000-0x00000000021F6000-memory.dmp

      Filesize

      536KB

    • memory/1720-1-0x0000000000400000-0x000000000049D000-memory.dmp

      Filesize

      628KB

    • memory/1720-13-0x0000000000400000-0x000000000049D000-memory.dmp

      Filesize

      628KB

    • memory/1720-14-0x0000000002170000-0x00000000021F6000-memory.dmp

      Filesize

      536KB