Analysis

  • max time kernel
    125s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2024 08:33

General

  • Target

    0066eee95811dfb2a98b3f064a63571e_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    0066eee95811dfb2a98b3f064a63571e

  • SHA1

    75d2c1b7b47556e0faa7ee9df676655a323313be

  • SHA256

    a3a348797b08856296f9f96a9c9414b83bea3fa31680262fb979c9e64be6e6b9

  • SHA512

    a7fabfea4d1787ae4b8b8f4846e51d4374c7614a325ce153782e669328b131ef70dda8c5ffbdfa54361d851b79708c36973e04161fcb3627014e0070b22bfbfb

  • SSDEEP

    12288:0d9HSAG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BSq4ma/QTkJ8ePJ/R5uO7nU26lBA:0dBG4GQm4OaHYJ8eP4D5uOHBBH4maekB

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 22 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0066eee95811dfb2a98b3f064a63571e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0066eee95811dfb2a98b3f064a63571e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release3199\ie\RichMediaViewV1release3199.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1684
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3336
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:1760
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:1464
      • 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=4292,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=3668 /prefetch:8
        1⤵
          PID:4824

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release3199\ie\RichMediaViewV1release3199.dll

          Filesize

          85KB

          MD5

          53dfc23a0f8338954ffb7cf5961e5640

          SHA1

          b71462556e494d7e57467d5cae72cc56991d194d

          SHA256

          7efaec85c18226c0e12f4d458b9ec351e48b38600ace8a5fe41a9aec33496b4a

          SHA512

          f7e791a4933c84c9e17eb8c2ee4743223955346a8ae82bfd507c5bb341f9e2dad80870020826ae7854dfaa468c577bbec48e175ef549000b6bcb130d3537aca3

        • C:\Users\Admin\AppData\Local\Temp\nsvAB40.tmp\aminsis.dll

          Filesize

          567KB

          MD5

          450753ad96785a240a39deccab3af0d0

          SHA1

          21c544064d2ffa6444508268ce258a330d459fc5

          SHA256

          1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

          SHA512

          c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab