Analysis

  • max time kernel
    143s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-10-2024 20:47

General

  • Target

    253c83103a7de1cb893f1aa63babc05a_JaffaCakes118.exe

  • Size

    689KB

  • MD5

    253c83103a7de1cb893f1aa63babc05a

  • SHA1

    2835a87d754489ed17ef7575dc0d06b91f38abcf

  • SHA256

    0cc49cea4423f5d35e9297c3f24c0131924e19dd9dad425019fbc89349b2dd4c

  • SHA512

    69f51f0a93e0a868fd3becc6c11a8a315174d1be9b160ab302abd3a42f27b29a45a9ee1d3137a519c6a01d3b4a737ececef20ac126c4b60431ddeebe09759178

  • SSDEEP

    12288:l3LhOb5FG4G4Y7jeKuVnvon+N83LwwiAn6KkM33nxDkjeKuV2v9b+N84LwwiHn6+:l3Ab/G4G37tUnvone83Z76bMHxgtU2v7

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Loads dropped DLL 5 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 6 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 23 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 56 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\253c83103a7de1cb893f1aa63babc05a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\253c83103a7de1cb893f1aa63babc05a_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:3632
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha3942\ie\TrustMediaViewerV1alpha3942.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2300
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s "C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha3942\ie\TrustMediaViewerV1alpha3942x64.dll"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha3942\ie\TrustMediaViewerV1alpha3942x64.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies registry class
        PID:1240
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4768
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:432
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3656

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha3942\ie\TrustMediaViewerV1alpha3942.dll

        Filesize

        85KB

        MD5

        0a806bc88d53edb0241950de1cf2fcb6

        SHA1

        7a6fc8eaa08baec9dac414e0ccfbee1c2aeb84d4

        SHA256

        19e705fc235d849856dfc84ca85e0ed236f510c32686bc55c8b8e5998993d397

        SHA512

        669cbcdc339e7096669daa2f2f6a81f1ca7784c97d887337216864da8a3409fa57908de4392eff9f4e187d0386ac8747eaf755a9bd1b767b2a8832d8569893de

      • C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha3942\ie\TrustMediaViewerV1alpha3942x64.dll

        Filesize

        100KB

        MD5

        ab98d1d0ebf62707bb27cc9ff6e71bb3

        SHA1

        ac4617b75c6f4f9cfe409bf507f8304d98de1946

        SHA256

        9fe0747b6aa6555793c9c05c932e92a70a9826fe00c359f121286c0887e0852a

        SHA512

        473a8b7b62b8ad64f7d67f86f371ffb2b5cd6b7091bb2fe1c694234b7225bc34abbf4db9030f2706f0557310125b4a08158604f0b89ae31002e0142e2d03b56d

      • C:\Users\Admin\AppData\Local\Temp\nsxCD24.tmp\System.dll

        Filesize

        11KB

        MD5

        c17103ae9072a06da581dec998343fc1

        SHA1

        b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

        SHA256

        dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

        SHA512

        d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

      • C:\Users\Admin\AppData\Local\Temp\nsxCD24.tmp\aminsis.dll

        Filesize

        567KB

        MD5

        f346047b13f37f79c462e59a6319faa1

        SHA1

        ce9e7cb9719000a69b463fe024c81229e322279f

        SHA256

        e78e0e61707cabec8383f1e74da9db8e0fa123a3a7b36f0080d70fbaed6f7453

        SHA512

        429209cc489ba9ac2d62055b128efb3cded3e31f966c7cdb1aee592ec7a54ab090526705fa2519498d92eb4bc2efa141cd83adc6c251b793388ad1208b172167