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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/07/2024, 04:30

General

  • Target

    5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe

  • Size

    41KB

  • MD5

    5a780ba3ce69fa973d06d6e0ba6639c9

  • SHA1

    f61b9534a1c6683f89f0bfd9abb27e3524743db3

  • SHA256

    995e4ff1c8afe99b65bc518ff6045e691a409636a176e8cfd95d638977458128

  • SHA512

    d60f08c02b2b54ecd86ef6f1236fac653448a9df50d683603978f3eedde4534016e40360bc33872b5d4bfb36c2decef7b3b3210c20f2ae933b07cc300fef947f

  • SSDEEP

    768:CH07dsAUzf836+0urSVYHWdO+W2nMbazblI5ADX:O07dQb+0NVYWO+HMmPlgAb

Score
7/10

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
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5a780ba3ce69fa973d06d6e0ba6639c9_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:3476
    • C:\Windows\SysWOW64\service\sixyahbi.exe
      "C:\Windows\system32\service\sixyahbi.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:216
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 1144
      2⤵
      • Program crash
      PID:1196
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3476 -ip 3476
    1⤵
      PID:2204

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\service\sixyahbi.exe

      Filesize

      41KB

      MD5

      5a780ba3ce69fa973d06d6e0ba6639c9

      SHA1

      f61b9534a1c6683f89f0bfd9abb27e3524743db3

      SHA256

      995e4ff1c8afe99b65bc518ff6045e691a409636a176e8cfd95d638977458128

      SHA512

      d60f08c02b2b54ecd86ef6f1236fac653448a9df50d683603978f3eedde4534016e40360bc33872b5d4bfb36c2decef7b3b3210c20f2ae933b07cc300fef947f

    • memory/216-10-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB

    • memory/216-12-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB

    • memory/3476-0-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB

    • memory/3476-9-0x0000000000400000-0x0000000000423000-memory.dmp

      Filesize

      140KB