Analysis

  • max time kernel
    149s
  • 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
    19-09-2024 13:39

General

  • Target

    eb728cbc66d82da2a837539a50d4d0d8_JaffaCakes118.exe

  • Size

    140KB

  • MD5

    eb728cbc66d82da2a837539a50d4d0d8

  • SHA1

    76fe02456ab472041242a055b8964e21327fa2e4

  • SHA256

    11f1accbff549ad0041142a13c44fa88e80205ac155d28ce0e70b26c3f1f2065

  • SHA512

    b0d2f98e1efda9d00721e37b6c4554a3bdc51ff73fd1fdf00f2b3590e296676caa023a0d3ad31edabf188101177518896e3f73d6f9a19d78e9cddef5d18f298e

  • SSDEEP

    768:zBq0pll6yt4pd04q0zik+vhy7g0EM/LinbQe4bKG:doeEn3+pCg0EUGQe42G

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • 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 51 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb728cbc66d82da2a837539a50d4d0d8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb728cbc66d82da2a837539a50d4d0d8_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Users\Admin\tcvun.exe
      "C:\Users\Admin\tcvun.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\tcvun.exe

    Filesize

    140KB

    MD5

    69461b20aea404f84bff4eaaf2c0011e

    SHA1

    3b3b0c110e7bfa6e07801cb97864e2c4d5308f23

    SHA256

    0431904a30bf8a982de54a8fa741f029b5f71d9cb690840ecce952fa95a092e1

    SHA512

    7a6724095a2d4bba1e4f4ccedb67dfbc5035e50ec8b097b65d5b6681b910fc8a014c0e7129b5ebdad43c50354816f4cd665574a9426e922af2c02232f0e9cde4