Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 02:11

General

  • Target

    28f80f6493cefa70264896e397281be6_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    28f80f6493cefa70264896e397281be6

  • SHA1

    0334f70d483aecec9ff001ed1c4f63cf742e757c

  • SHA256

    91359945ae33bd05c2d0673e93f3a8cd2320933332a28eb04fdaabe87f97fea4

  • SHA512

    360d724427f224318b7845580bf05ad07630b5bc1020e6242b0555408d49c98fcbb709870255941e08c0935624eb2c91d0e684ef28bc514bcd41770953d6cc05

  • SSDEEP

    12288:MNGBmpG4GjeZHkwuPikQ7lKH5p5H9x13eZHkwuLiDQTlKJ5p+xWlf8:MNG4GjeZEXi37l6Br13eZEjiMTlmWslk

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\28f80f6493cefa70264896e397281be6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\28f80f6493cefa70264896e397281be6_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:4860
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3259\ie\MediaWatchV1home3259.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1264
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3508
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:5024
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:1676

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home3259\ie\MediaWatchV1home3259.dll

        Filesize

        85KB

        MD5

        0ccbd466a8d1c8e1b0a97e5179912948

        SHA1

        aadf3f723df6aa932ff4b5fc9b60986782b08400

        SHA256

        ee5517a57df80d2c601bbcb6d73d044fed81736f536a907e738f5f25db1a2638

        SHA512

        9c3f5a6a5729a511b377a85e9c2c5437b32b291408c63d37a1c03690f69b772b0e938c6376f2cf73349d1e21008dd846868fc99e92fbf04b3a2593dfcb406fac

      • C:\Users\Admin\AppData\Local\Temp\nsk787D.tmp\aminsis.dll

        Filesize

        559KB

        MD5

        51ba1095f0ae45a2d444bea506cb9ad4

        SHA1

        038a5d53d055a6d440bd2c8864c2f51db206c5e5

        SHA256

        b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

        SHA512

        f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361