Analysis

  • max time kernel
    134s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/08/2024, 01:17

General

  • Target

    a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe

  • Size

    81KB

  • MD5

    a900a5429c5fd16d65217fd28438be09

  • SHA1

    a722729aae4f452bc78c4b3f195ef5ddb03de270

  • SHA256

    d1b621c9f83d9a6c1280a1d2625a7ac638ed6b3a7838535ef773e5070f09542d

  • SHA512

    e9afc23d265c445b18c374b099bd2db17365df5d04f1024fc71a45574998b0463661fc1a9dfa114019a053abdd73eff0aa0a11d08945bc3e45cd5e904243263c

  • SSDEEP

    1536:KAX+vZIHuk0fJXYbfEyw5e4aSsJSr0eRkOKEuYBiyYgI0/vF:KzRIoobEywiSsDeatudf/vF

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a900a5429c5fd16d65217fd28438be09_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Users\Admin\AppData\Local\Tempdecrypted.exe
      "C:\Users\Admin\AppData\Local\Tempdecrypted.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1496
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 284
        3⤵
        • Program crash
        PID:2980
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1496 -ip 1496
    1⤵
      PID:3920

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Tempdecrypted.exe

      Filesize

      65KB

      MD5

      d24d69457b466ece29b2c088b1011729

      SHA1

      b7182bce95c36cc9f353d587ee14a0b9e1e93e59

      SHA256

      7a22f35ac96c179ad2d29db0d3e4d4f096eb356ab45c25233d7275c4485a1c7e

      SHA512

      a7ff2c2a9ffd316142eb68489c5876101ee2361e0a6612ae21d1778d6e852d1d3916fb2a732bd38e4e1336eb4549e1690c5edc01141d1ba89142e39d05e40e61

    • memory/1496-12-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/4320-0-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/4320-11-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB