Analysis

  • max time kernel
    121s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-10-2024 14:56

General

  • Target

    30769708e13acbe91b6179c548f8db6d_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    30769708e13acbe91b6179c548f8db6d

  • SHA1

    ec2e2b0e1864ffd7142470b18e476c94f37236e1

  • SHA256

    188f477448be44e6916d80d29af2671b0c943d5e5954b1f17b5c493703555f86

  • SHA512

    84d06f0ed90b0fa0ce97ee72e2cb306b5f8808b2423d926f4734bb5a525829b07cdf4faa2627d9b6e658cf9916a2f1d6ffdbe70aef392ae482cdc6240cbf33fb

  • SSDEEP

    12288:RwDnTG4GQTq4OaQQTYJ8eP4/L5uO7D3f5BYq4Wa/QTKJ8eP9/75uO7eU266Bq:RaTG4GQm4OaHYJ8eP4D5uOHBBN4WaeKP

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\30769708e13acbe91b6179c548f8db6d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\30769708e13acbe91b6179c548f8db6d_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:2292
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release1015\ie\RichMediaViewV1release1015.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1140
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5080
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:2512
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:1420

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release1015\ie\RichMediaViewV1release1015.dll

        Filesize

        85KB

        MD5

        9dce9bc3dec208f03b8ac4efafe3d3af

        SHA1

        41e51efbef2a76bb3dad85a5cc9a9ac99cd134b6

        SHA256

        147f61c337e2e533d6bd858113179cfc0dbec26460852cfcb9eda4c78561c856

        SHA512

        1827771c7bb47abe7086437a4822dcdb83c106ea0dc6b0203d918072d6c04e42382dd15a609b029d3d1227e4e930ef97c0e42090eb656c23aa48060f4a4a2b91

      • C:\Users\Admin\AppData\Local\Temp\nsr96E2.tmp\aminsis.dll

        Filesize

        567KB

        MD5

        450753ad96785a240a39deccab3af0d0

        SHA1

        21c544064d2ffa6444508268ce258a330d459fc5

        SHA256

        1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

        SHA512

        c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab