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Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2024, 01:16

General

  • Target

    b5ca1305dfb83ac4bc1ddf68d81f55e2_JaffaCakes118.exe

  • Size

    216KB

  • MD5

    b5ca1305dfb83ac4bc1ddf68d81f55e2

  • SHA1

    9c28885e55c4078c5e8e54a566d67e194074fe4c

  • SHA256

    5ca3dc81038dfe778acd870f526d8de2186bbebd6ed3a706cdc5050b23db367a

  • SHA512

    410e09227ea10593f884a1965918d5814b2042dae3befbd63095c9dd7945f49e623fcd16f05cc61af0d0c242dd88ea866a9b063c40b46cc033dc9aabe0e712be

  • SSDEEP

    3072:nYUaMKiuxxnM3/7eFE+S2/goM2IFNGzBkl9sGUg:YX/nM36q+VM2CWs9g

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 52 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\b5ca1305dfb83ac4bc1ddf68d81f55e2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b5ca1305dfb83ac4bc1ddf68d81f55e2_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Users\Admin\tlfair.exe
      "C:\Users\Admin\tlfair.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:4616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\tlfair.exe

    Filesize

    216KB

    MD5

    11900018e4e7076d513b7b812deb68b7

    SHA1

    0cb1f5419d62b3ecc6b22a47a74c80dbd51cbe36

    SHA256

    f1a4c618382654c4b41fba692456b7a8c26c9752ecc4a3eeb09b11718efe7210

    SHA512

    7c3d55559edb7bbda043637466915dce4f4d673a81ef605a6ac41cd66f5c8a07f7897d41d35a2b025c871ddc80b77eeacc2fa486ffeee2e1b8e9c72cd3cdab37

  • memory/4108-0-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4108-37-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4616-33-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/4616-38-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB