Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/10/2024, 05:23

General

  • Target

    3e09105238112d8ecbaf4cde8f2ad021_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    3e09105238112d8ecbaf4cde8f2ad021

  • SHA1

    19d6f44361528f173bc0109db91fd56c5eec4f20

  • SHA256

    19b8c0f301419469afb27c92507990ea572d050cfb8d6440fea78d4e0e557f2e

  • SHA512

    35376556c4084dff356eb8ea4b4ea2c68abe1ab649e6ffa429f467a1262ddb44c8f6c66789e7018da0798b288500679147d9778c23fb1181a40fb1f42fc60a8e

  • SSDEEP

    12288:U4MU5vxyG4GjeZHkwuPikQ7lKH5p5H9x1IeZHkwuriZQZlKh5pQxlMjVWg:UW54G4GjeZEXi37l6Br1IeZEjiOZlWo+

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\3e09105238112d8ecbaf4cde8f2ad021_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3e09105238112d8ecbaf4cde8f2ad021_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:4976
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home866\ie\MediaWatchV1home866.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:3168
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2224
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:2500
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4488

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home866\ie\MediaWatchV1home866.dll

              Filesize

              85KB

              MD5

              b49c29bff2199b0068a1abc596b24475

              SHA1

              ae84fdc51886e3ced9d5d0d3c4a6dbe4d1739185

              SHA256

              4fca56e8543c3da0a560435ec7018bbf654dee414b21291f36302df26ba67c7d

              SHA512

              621bff61f917c2973706f22f502dc808409dd20ad3b400c2b2ad40f13dc7de356b254214168293a9185c6250c7ddc043408208fd087132fb94c0de1f853925b6

            • C:\Users\Admin\AppData\Local\Temp\nswAF7B.tmp\aminsis.dll

              Filesize

              559KB

              MD5

              51ba1095f0ae45a2d444bea506cb9ad4

              SHA1

              038a5d53d055a6d440bd2c8864c2f51db206c5e5

              SHA256

              b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

              SHA512

              f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361