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Analysis

  • max time kernel
    135s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/10/2024, 22:23

General

  • Target

    763e370d93391ed70d3e7fd2cf74e476_JaffaCakes118.exe

  • Size

    689KB

  • MD5

    763e370d93391ed70d3e7fd2cf74e476

  • SHA1

    21a43b121144305eb2700fddc846a6933ee05271

  • SHA256

    f68339263c85ea443eb8601ae02c614bd235b086b3491b6a427a98273e518e4f

  • SHA512

    25802b05ab6fdb9e60d7e5e141a273ebe562e6852de10f0d3f47a521df995c841b3c83034b306d8a800ad8b56105b28fcde7bdc1e436e8fe7a950a117835e6e6

  • SSDEEP

    12288:WbsmWgab3/6cHnOG4G4Y7jeKuVnvon+N83LwwiAn6KkM33nxDsjeKuVGvVL+N8Ki:WY5gw3nOG4G37tUnvone83Z76bMHxQtX

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\763e370d93391ed70d3e7fd2cf74e476_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\763e370d93391ed70d3e7fd2cf74e476_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:2776
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha6139\ie\TrustMediaViewerV1alpha6139.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2184
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s "C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha6139\ie\TrustMediaViewerV1alpha6139x64.dll"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1604
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha6139\ie\TrustMediaViewerV1alpha6139x64.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies registry class
        PID:32
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:440
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:3436
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3928

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha6139\ie\TrustMediaViewerV1alpha6139.dll

        Filesize

        85KB

        MD5

        2250175d281eda6183b9376bb27fb889

        SHA1

        1990befbfde155c502c1a2acf888807df0ba9ffe

        SHA256

        5d40312a771802eec3a428e5ba60df2f22fffca1593f5b7b73503c9943b63ce3

        SHA512

        01cd5bcae658cd2f77ea033e4dbafe48d350aeb89de1e43b8a0fbd4005e1d6913e1c8534e1539e68412621490a0fa65167089008bab901b0bcb9567665a69651

      • C:\Program Files (x86)\TrustMediaViewerV1\TrustMediaViewerV1alpha6139\ie\TrustMediaViewerV1alpha6139x64.dll

        Filesize

        100KB

        MD5

        ba711a3398a46e9bac670817f8d3cf2c

        SHA1

        dd08bd5516b883eb499df0e90db96fbf04cd0108

        SHA256

        5f54c1a1f9acc11d656497fd2fdd6b7a02e59bf81a6842c41382b4a97e0c1f81

        SHA512

        4edd4cdb65998c95a6d94f30b4f6f03c529544753e78b297e89e3561fa60dbd34051b3d7a07569f2b6ac0123c1f9310b94eb0b4e1c77fcbcf62320d20aa6b43b

      • C:\Users\Admin\AppData\Local\Temp\nsq8723.tmp\System.dll

        Filesize

        11KB

        MD5

        c17103ae9072a06da581dec998343fc1

        SHA1

        b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

        SHA256

        dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

        SHA512

        d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

      • C:\Users\Admin\AppData\Local\Temp\nsq8723.tmp\aminsis.dll

        Filesize

        567KB

        MD5

        f346047b13f37f79c462e59a6319faa1

        SHA1

        ce9e7cb9719000a69b463fe024c81229e322279f

        SHA256

        e78e0e61707cabec8383f1e74da9db8e0fa123a3a7b36f0080d70fbaed6f7453

        SHA512

        429209cc489ba9ac2d62055b128efb3cded3e31f966c7cdb1aee592ec7a54ab090526705fa2519498d92eb4bc2efa141cd83adc6c251b793388ad1208b172167