Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 21:14

General

  • Target

    8bfe9e63b28ea0ec1ef609df44a00788_JaffaCakes118.exe

  • Size

    191KB

  • MD5

    8bfe9e63b28ea0ec1ef609df44a00788

  • SHA1

    eb9b5da55fc2f82d2c9ee770b45d6cf13bcab98a

  • SHA256

    6486d7678e6bfef44c78b6be624f2c08131f2be3a752901588ddf06eee474ca0

  • SHA512

    89c8cd1e3325bf94ae074ee42aaad78903d7476c9340bf7e8b3470d28a9c99aa5862134f443840d074295238f63456da9bb9430cae32b42423365ac6cfd0c9f4

  • SSDEEP

    3072:oLboH72D2M/gd74950lR/3vvPLrk1EKGjFZ8+FTYEnSaBSg93TEk7B:InSM/G74n+R/vTKIhFTYE5BSg9DEkF

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 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bfe9e63b28ea0ec1ef609df44a00788_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8bfe9e63b28ea0ec1ef609df44a00788_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Program Files (x86)\barosearch\bsearch.exe
      "C:\Program Files (x86)\barosearch\bsearch.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4832
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\erase.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3336

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\barosearch\bsearch.exe

    Filesize

    191KB

    MD5

    8bfe9e63b28ea0ec1ef609df44a00788

    SHA1

    eb9b5da55fc2f82d2c9ee770b45d6cf13bcab98a

    SHA256

    6486d7678e6bfef44c78b6be624f2c08131f2be3a752901588ddf06eee474ca0

    SHA512

    89c8cd1e3325bf94ae074ee42aaad78903d7476c9340bf7e8b3470d28a9c99aa5862134f443840d074295238f63456da9bb9430cae32b42423365ac6cfd0c9f4

  • C:\Users\Admin\AppData\Roaming\erase.bat

    Filesize

    387B

    MD5

    17ceab8b653bbfce80fea5fae432b1e0

    SHA1

    e89cbf3e965cf42fe8513f3ae6a12ba7919be32d

    SHA256

    503c6500013cda340846a1fcd66e3eed909595b3158a5c9f2d5340ec91bc2d5c

    SHA512

    e633c423a195bb0b0fd79434d409378953f218617bc46c3c1d65684b126043af59451ef9c4bb48aaab2439f9b6b0e6a7b55f2c94a4ee5e45ddb7a48956c9e80c

  • memory/1904-0-0x0000000000D90000-0x0000000000E18000-memory.dmp

    Filesize

    544KB

  • memory/1904-18-0x0000000000D90000-0x0000000000E18000-memory.dmp

    Filesize

    544KB

  • memory/4832-13-0x0000000000250000-0x00000000002D8000-memory.dmp

    Filesize

    544KB

  • memory/4832-19-0x0000000000250000-0x00000000002D8000-memory.dmp

    Filesize

    544KB