Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 21:40

General

  • Target

    0359ae8678a030c77f519595b2e5319e_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    0359ae8678a030c77f519595b2e5319e

  • SHA1

    0d252c505e8b166e8a40177eb9fe5ef841389167

  • SHA256

    fc448be7876632d417fb862f67104f135ce4c4b089ca9b001c816f76401271d3

  • SHA512

    ac7060d5ff7e4372b55e4389620e0540b72e099c3e9e92e442f086658acfd9364a420739c01ccd5855f4f50403b747b6d1aca1589878c8794bf5d81cbe5262d9

  • SSDEEP

    12288:0yVXW5X7MG4GjeZHkwuPikQ7lKH5p5H9x1UeZHkwuNilQblKF5pQxlXTd8zbH:0yFW5LMG4GjeZEXi37l6Br1UeZEliKbA

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\0359ae8678a030c77f519595b2e5319e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0359ae8678a030c77f519595b2e5319e_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:4500
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4625\ie\MediaWatchV1home4625.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:4420
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4864
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4124
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:1512

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home4625\ie\MediaWatchV1home4625.dll

        Filesize

        85KB

        MD5

        33fec1ddbf7816ed8194d430bf4fae3a

        SHA1

        28c2958a818f63e08f3da954767ce965aeee515a

        SHA256

        78a6726c912aa9ca9047624a77199edea4a023eb30077aeb4cee01b811f04395

        SHA512

        ebc9fdcd6132e47976002811d6c0aa4fe19506cb9d01b4c75701824f3578fa49d5c6fb53df5dffaa8b06cfb64ae880d8b47f5a61391da049c7e9580c67895d55

      • C:\Users\Admin\AppData\Local\Temp\nsz91F0.tmp\aminsis.dll

        Filesize

        559KB

        MD5

        51ba1095f0ae45a2d444bea506cb9ad4

        SHA1

        038a5d53d055a6d440bd2c8864c2f51db206c5e5

        SHA256

        b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

        SHA512

        f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361