Analysis

  • max time kernel
    25s
  • max time network
    24s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2024 16:52

General

  • Target

    Payload.exe

  • Size

    55KB

  • MD5

    5c56be92df69c8add408d506c5532239

  • SHA1

    0dad011e6ddbd559d30217bf8b9da634a72c2023

  • SHA256

    b58ab675e6430d8d9eeb6d316a635f5eb62fb19cd1120b3d1376136df5c8a44e

  • SHA512

    85ebfc2be987a011bb4db28842a90a7be26560ee843600f0b39b0805980ba27cc00db7cd635305dfdeecb6333576c6ba501fe0f79d56f0cbe8eaa12ecc3560cf

  • SSDEEP

    1536:qPsoDnb4DNQ7SCCHDrwsNMDxXExI3pm9m:noDnEWOrHDrwsNMDxXExI3pm

Malware Config

Extracted

Family

njrat

Version

<- NjRAT 0.7d Horror Edition ->

Botnet

Victim

C2

youth-latex.gl.at.ply.gg:56149

Mutex

4c4f4a71cf4fc204c1ef58ead9ffcdec

Attributes
  • reg_key

    4c4f4a71cf4fc204c1ef58ead9ffcdec

  • splitter

    Y262SUCZ4UJJ

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payload.exe
    "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
      "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2304
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn CleanSweepCheck /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2636
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2132
        • C:\Windows\SysWOW64\PING.EXE
          ping 0 -n 2
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\dllhost.exe

    Filesize

    55KB

    MD5

    5c56be92df69c8add408d506c5532239

    SHA1

    0dad011e6ddbd559d30217bf8b9da634a72c2023

    SHA256

    b58ab675e6430d8d9eeb6d316a635f5eb62fb19cd1120b3d1376136df5c8a44e

    SHA512

    85ebfc2be987a011bb4db28842a90a7be26560ee843600f0b39b0805980ba27cc00db7cd635305dfdeecb6333576c6ba501fe0f79d56f0cbe8eaa12ecc3560cf

  • memory/2304-10-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2304-11-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2304-14-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2304-15-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2304-18-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2324-0-0x00000000746A1000-0x00000000746A2000-memory.dmp

    Filesize

    4KB

  • memory/2324-1-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2324-2-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2324-12-0x00000000746A0000-0x0000000074C4B000-memory.dmp

    Filesize

    5.7MB