Analysis

  • max time kernel
    149s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2024, 07:40

General

  • Target

    2b820db8bdb818d0ea0ab97b98ae754e_JaffaCakes118.exe

  • Size

    196KB

  • MD5

    2b820db8bdb818d0ea0ab97b98ae754e

  • SHA1

    51f98b2aa510dd995f72bf101d6a563837f9a322

  • SHA256

    8fa0d3e963b995b599c2f17af04e75a533e0d8f0c6ddaf462adbed95ece46c2f

  • SHA512

    0796891b8994bb19d6eec48c6f5ccf4eb7d676721711f7863ac3d4d7dc1325c818c431ed2e2eb1f1417d5a4646318aa546caf9795bc3f3f2b62bb141b7548643

  • SSDEEP

    3072:M1CVnPybzV8Q3io0ce4LTI208YioBK9QRO8qeXQ:MQVnPybzV8Oio0ctLTt08doLRO8qeg

Score
10/10

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 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b820db8bdb818d0ea0ab97b98ae754e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2b820db8bdb818d0ea0ab97b98ae754e_JaffaCakes118.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\wuihul.exe
      "C:\Users\Admin\wuihul.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3548
  • 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,18341222626402534844,12352985901844242237,262144 --variations-seed-version --mojo-platform-channel-handle=4076 /prefetch:8
    1⤵
      PID:4036

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\wuihul.exe

            Filesize

            196KB

            MD5

            ecb1db57c75ff43ac207788398d81742

            SHA1

            24694b92b8d430085c4aef2ab4676666322b327a

            SHA256

            128435fd0b2572edb105ad374a83e958180b9d48ebf41ebdbee371ec6d52093b

            SHA512

            30174a2fd7c2af698b19eaf962c811f5cd41b80062c93b631f7174feee968ccd36f511dca4db39dbcd4f64292f94f712602fa5e3ce30aca22aabe1010e0d817b