Analysis

  • max time kernel
    140s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2024 22:45

General

  • Target

    ace2a1dcca2058a6830e5565f9006683_JaffaCakes118.exe

  • Size

    126KB

  • MD5

    ace2a1dcca2058a6830e5565f9006683

  • SHA1

    5b7e1cae98d379bc13a409475652011533077e40

  • SHA256

    385ee32797fcbc3a9abae37434de6816a11e8c4e48b53d361715407d8a8ca921

  • SHA512

    80689098e327b0870047c8eeeff5aa1379d293d3d208a0ee583827ba0b68a2447967a7a076ac3aca81f641d19cb16d4d3875c3ed9a3613772af50d45a4c7e62a

  • SSDEEP

    3072:mRBmaB0l/61sTydxZQEomqBILTgt5I0cBo:mTwydrYDygrcBo

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
  • Drops file in Windows directory 1 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 2 IoCs

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

  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ace2a1dcca2058a6830e5565f9006683_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ace2a1dcca2058a6830e5565f9006683_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:884
    • C:\Windows\rb.exe
      "C:\Windows\rb.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4968
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 224
        3⤵
        • Program crash
        PID:376
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4968 -ip 4968
    1⤵
      PID:3004

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\rb.exe

      Filesize

      110KB

      MD5

      fdce8fd194b481f368d79a676cd9af1a

      SHA1

      c27b9f0c0ae923e475e7c71125ccb0e5c87eb6e4

      SHA256

      08d1ee6bd88d93db92589d82a016c59eddd3ba8df2fa14d0af4e07116a705fee

      SHA512

      90fdc8667ed7bef1d06def67e4419c67ef178b55761184ff59aa51f0babd62a2418c939a9eda9a210b7292a3a0594a54a17b0e5b3e5d35e83a476def53f83c25

    • memory/884-0-0x0000000000400000-0x0000000000421200-memory.dmp

      Filesize

      132KB

    • memory/884-11-0x0000000000400000-0x0000000000421200-memory.dmp

      Filesize

      132KB

    • memory/4968-8-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/4968-10-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB