Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25-02-2023 06:32

General

  • Target

    c3c655e28a4fc1b268ea9f755c8a4c2418b713f2abc641c30519c4ca641d84b8.exe

  • Size

    292KB

  • MD5

    fcf4329bec808e95cd7eeb3396060b61

  • SHA1

    fea1ed17dd407b7be980d8996a5756a0dbdc3bfc

  • SHA256

    c3c655e28a4fc1b268ea9f755c8a4c2418b713f2abc641c30519c4ca641d84b8

  • SHA512

    946704e758e1542244f88d8d6d9af49bfac5f894d3aebc1b66b79937078ac401c611ecf385d7a5299c7e28db2c636aac710343c7159dac3c9e2a967393e80a02

  • SSDEEP

    3072:Oh0ca1GaQZCklyWJtF5NptfIwID6E9M5Pb6wr90QC6rxdSEM5Hkq1yGe9UEpj4KF:w9ayV7tFJ526Zb6+TCYjMtH1yGI4O

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3c655e28a4fc1b268ea9f755c8a4c2418b713f2abc641c30519c4ca641d84b8.exe
    "C:\Users\Admin\AppData\Local\Temp\c3c655e28a4fc1b268ea9f755c8a4c2418b713f2abc641c30519c4ca641d84b8.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c del /q C:\Users\Admin\AppData\Local\Temp\c3c655e28a4fc1b268ea9f755c8a4c2418b713f2abc641c30519c4ca641d84b8.exe
      2⤵
        PID:1496

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5044-121-0x0000000002380000-0x00000000023CE000-memory.dmp

      Filesize

      312KB

    • memory/5044-122-0x0000000010000000-0x0000000010028000-memory.dmp

      Filesize

      160KB