Analysis

  • max time kernel
    150s
  • max time network
    107s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 16:33

General

  • Target

    0fa39020e0e3f7dede81755b314758ce_JaffaCakes118.exe

  • Size

    220KB

  • MD5

    0fa39020e0e3f7dede81755b314758ce

  • SHA1

    812e2fde134def02cf24c33ccdf7988f0663636c

  • SHA256

    770be449a967832ba3390e6bf640538ce7aed1ef63f8d05ee460bd84932272ad

  • SHA512

    d4736e0fbcba5878f2e9102f3d971b4dd70bfafeb3dd103b42fa92ffec0a055a1975dff2f16d78f42a11efcf89c3806c24204ee09322d60899685bb4a2aa6514

  • SSDEEP

    3072:vejL4hbSxmqvsxv5gVzaSCzhIJFRxdJWtD5qK23L:U4hbSxm+wgzXnxtK2b

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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 27 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0fa39020e0e3f7dede81755b314758ce_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0fa39020e0e3f7dede81755b314758ce_JaffaCakes118.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4920
    • C:\Users\Admin\remew.exe
      "C:\Users\Admin\remew.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
      PID:4736
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2060

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\remew.exe

      Filesize

      220KB

      MD5

      0fa39020e0e3f7dede81755b314758ce

      SHA1

      812e2fde134def02cf24c33ccdf7988f0663636c

      SHA256

      770be449a967832ba3390e6bf640538ce7aed1ef63f8d05ee460bd84932272ad

      SHA512

      d4736e0fbcba5878f2e9102f3d971b4dd70bfafeb3dd103b42fa92ffec0a055a1975dff2f16d78f42a11efcf89c3806c24204ee09322d60899685bb4a2aa6514