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Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/08/2024, 21:37

General

  • Target

    a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe

  • Size

    196KB

  • MD5

    a007bacd2a91137b63174740380b6c2b

  • SHA1

    e4e1c64e569419aff84a6496bfaf0b903e230352

  • SHA256

    e2381e011d8dfc1051d99e65d6d65e7f045a0fcfec4d4e7108b7a60a1d64ae2b

  • SHA512

    8c8d7eb60f75e00f31c4ae9306da46afecf9ce4269976f042faa7d8bc6398f242d5c53d01550fc8d12043f041ede23bcd00c55a100b7f5581f4509cb6e817af6

  • SSDEEP

    6144:Wg5E2VmxrCDR8lcv9R++HYdTOzbl/p3RLUbSL32:W8u1CKlWxETGxBLUbg2

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 4 IoCs
  • 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 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a007bacd2a91137b63174740380b6c2b_JaffaCakes118.exe"
    1⤵
    • Modifies firewall policy service
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe
      "C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4548
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4020,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4108 /prefetch:8
    1⤵
      PID:4976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\M-1-52-5782-8754-5245\winsam.exe

      Filesize

      196KB

      MD5

      a007bacd2a91137b63174740380b6c2b

      SHA1

      e4e1c64e569419aff84a6496bfaf0b903e230352

      SHA256

      e2381e011d8dfc1051d99e65d6d65e7f045a0fcfec4d4e7108b7a60a1d64ae2b

      SHA512

      8c8d7eb60f75e00f31c4ae9306da46afecf9ce4269976f042faa7d8bc6398f242d5c53d01550fc8d12043f041ede23bcd00c55a100b7f5581f4509cb6e817af6

    • memory/2644-0-0x000000000042B000-0x000000000042D000-memory.dmp

      Filesize

      8KB

    • memory/2644-1-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/2644-2-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4548-37-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4548-38-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB