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Analysis

  • max time kernel
    139s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/08/2024, 21:53

General

  • Target

    a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe

  • Size

    243KB

  • MD5

    a85cb12aeafd113a53f3bd1a4fd8a93e

  • SHA1

    3619f9424d6dc2f299c6aa56996befce4457b44e

  • SHA256

    43b914d4f6aef7bb3cb261c7b920a34cfc6fecf8be46fb4039ed2ec94e088ced

  • SHA512

    70d09113aec4498666789a4117020c26d2018af66e941b501ce93812aa594cad483e25abdba63d847a10aa7510d2af93dbc709e59e38e01a75e8a50944e1473a

  • SSDEEP

    3072:dMgJYY7ZXODyY5WcTjLjs1tLTXdPKOftqPW+P1W7gHMY5ty8xb4MowbouEjUo:dLaH2cjPsPLTXdPKO1XPEnCuQUo

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • VMProtect packed file 3 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a85cb12aeafd113a53f3bd1a4fd8a93e_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Output.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Output.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2384
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 464
        3⤵
        • Program crash
        PID:3684
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 468
        3⤵
        • Program crash
        PID:2840
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2384 -ip 2384
    1⤵
      PID:4628
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2384 -ip 2384
      1⤵
        PID:4948
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=2708,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=4460 /prefetch:8
        1⤵
          PID:4488

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Output.exe

          Filesize

          101KB

          MD5

          ff09709a309a9e4d8651526ecae2a3c2

          SHA1

          cfebb3ae4f8652d100b35a7415f2c4532b486a04

          SHA256

          e1ffeab77b260cf40b72c5740c8249bc1d238d9a7bd0982daf190387b80f4e79

          SHA512

          0d607d343446c15ad0f0e486d6988d559a41c43d50c6e45266abef20006e78691b1388e45b25de07cd2a343e76413ae562f913fcc7d6253bb60c9d93bc59c822

        • memory/2028-0-0x0000000001000000-0x0000000001077000-memory.dmp

          Filesize

          476KB

        • memory/2028-1-0x0000000001069000-0x000000000106A000-memory.dmp

          Filesize

          4KB

        • memory/2028-2-0x0000000001000000-0x0000000001077000-memory.dmp

          Filesize

          476KB

        • memory/2028-11-0x0000000001000000-0x0000000001077000-memory.dmp

          Filesize

          476KB

        • memory/2384-8-0x0000000000010000-0x000000000002F000-memory.dmp

          Filesize

          124KB

        • memory/2384-10-0x0000000000010000-0x000000000002F000-memory.dmp

          Filesize

          124KB