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Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2023, 10:21

General

  • Target

    6fdebd27218d820aab768426215e50628db26dacb9cf992ba9212581f18706ad.exe

  • Size

    788KB

  • MD5

    eda46f81835c5b2aab811dffede1712f

  • SHA1

    bd2256102a1288e2b552f68078edc4bedb31d8c1

  • SHA256

    6fdebd27218d820aab768426215e50628db26dacb9cf992ba9212581f18706ad

  • SHA512

    e3c85087de6743b9de201a72e725061583f62c4a1f22c50b321460a0dbe3863a6b42bd573b9a847eb5e355dadda023005692d2e09f49c46c855ecb5d7020684c

  • SSDEEP

    24576:yZrvXgsPx2pUJAYFu2oF5/b5hOwyfonNGeUIiBs919sc6BI:CvXgKmUJAYFurFxjiBsn9slBI

Malware Config

Signatures

  • FatalRat

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

  • Gh0st RAT payload 4 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Fatal Rat payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6fdebd27218d820aab768426215e50628db26dacb9cf992ba9212581f18706ad.exe
    "C:\Users\Admin\AppData\Local\Temp\6fdebd27218d820aab768426215e50628db26dacb9cf992ba9212581f18706ad.exe"
    1⤵
    • Checks computer location settings
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c del /q C:\Users\Admin\AppData\Local\Temp\6fdebd27218d820aab768426215e50628db26dacb9cf992ba9212581f18706ad.exe
      2⤵
        PID:3976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\iokwindsns.jpg

      Filesize

      120KB

      MD5

      ba64147912c84f30017e1b70ad640629

      SHA1

      385be170b2ca3987a1899b8916083642958fbfd2

      SHA256

      7b1be6f5defcf082846bdcaa1dc23f9d10b40ad97eac2d428e068b0e3687dc4a

      SHA512

      3f7633d715d5dde98017dffc8af502bc37f74deb6e5013e8ab1cea36413b7e5abc4c2774994a5ac43637833ef9c83126c1e308965630533b0ea739d322333aef

    • memory/2648-138-0x0000000004260000-0x000000000427F000-memory.dmp

      Filesize

      124KB

    • memory/2648-139-0x0000000004260000-0x000000000427F000-memory.dmp

      Filesize

      124KB

    • memory/2648-140-0x0000000010000000-0x0000000010020000-memory.dmp

      Filesize

      128KB

    • memory/2648-144-0x0000000004750000-0x000000000489D000-memory.dmp

      Filesize

      1.3MB

    • memory/2648-148-0x0000000004750000-0x000000000489D000-memory.dmp

      Filesize

      1.3MB

    • memory/2648-149-0x0000000004750000-0x000000000489D000-memory.dmp

      Filesize

      1.3MB

    • memory/2648-150-0x0000000004750000-0x000000000489D000-memory.dmp

      Filesize

      1.3MB

    • memory/2648-155-0x0000000004750000-0x000000000489D000-memory.dmp

      Filesize

      1.3MB