Overview

overview

10

Static

static

3

81c6b75d4f...18.exe

windows7-x64

10

81c6b75d4f...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/08/2024, 21:20

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General

  • Target

    81c6b75d4fc8796475a30a9c95cd59d1_JaffaCakes118.exe

  • Size

    96KB

  • MD5

    81c6b75d4fc8796475a30a9c95cd59d1

  • SHA1

    4338a2300f6203abe3615293836449e6a3d78711

  • SHA256

    f76f51857fe8a20e9e815acb45fe2baeca418c1bacbc8bc28937b97b64c3bf72

  • SHA512

    2d97779d1525f05f145dc94be199fefeb80de3845c521ac46f0388113058d88b194974becef9aa3e69c8a36553a7ee7cc3fccfc2d2e1b000b7ff891f7d3933b5

  • SSDEEP

    1536:hSQBHUf6cO/hty/kGulSc16l6u+NMMl/KlYv1Tq5ThF/NIjnZEh:v3hYwlu8CFF/Cn6h

Score
10/10
discoveryevasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • 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 53 IoCs
    persistence
  • 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81c6b75d4fc8796475a30a9c95cd59d1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\81c6b75d4fc8796475a30a9c95cd59d1_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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Users\Admin\sulen.exe
      "C:\Users\Admin\sulen.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:4720

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\sulen.exe
          Filesize

          96KB

          MD5

          ad85e16f4a817fab1feb9e0bf44a1544

          SHA1

          7535cc23106de7813f62cc9092ff383daa19307e

          SHA256

          44cfe8122dd2b39864a135f0037ae55ec3a3eb00c906903a68a52bc0340c1369

          SHA512

          a282cd4fda7d6a3479912404f8a945159b2bfac76415c2316ef83bbbd5c26eb986ef110a200311c6c927cb6d453a0de10c51003d43a9e65598b0d5a335bd69b4

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