Overview

overview

10

Static

static

10

b93287f2b9...9c.exe

windows7_x64

10

b93287f2b9...9c.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    07/01/2022, 01:12

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General

  • Target
    b93287f2b98af1aefebef7a4b46a689c.exe
  • Size 43KB
  • Sample220107-bkh6lsbga7
  • SHA256 bfa74e548efbc9dda9420f88bb84f6f23c034399a16df9093b6a27e33621e44b
  • MD5 SHA1 SHA512
Score
10/10
njrathackedpersistencetrojan

Malware Config

Extracted

Family

  • njrat

Version

  • Njrat 0.7 Golden By Hassan Amiri

Botnet

  • HacKed

C2

  • 6.tcp.ngrok.io:15544

Mutex

  • Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 3 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b93287f2b98af1aefebef7a4b46a689c.exe
    "C:\Users\Admin\AppData\Local\Temp\b93287f2b98af1aefebef7a4b46a689c.exe"
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Users\Admin\AppData\Local\Temp\dllhost.exe
      "C:\Users\Admin\AppData\Local\Temp\dllhost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:924
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Creates scheduled task(s)
        PID:1868
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:1220
  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    C:\Users\Admin\AppData\Local\Temp/Server.exe
    1⤵
    • Executes dropped EXE
    PID:2572

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/924-119-0x0000000002940000-0x0000000002941000-memory.dmp
        Download

        memory/1108-115-0x0000000002AD0000-0x0000000002AD1000-memory.dmp
        Download

        memory/1220-123-0x0000000001920000-0x0000000001921000-memory.dmp
        Download

        memory/2572-126-0x0000000001060000-0x0000000001061000-memory.dmp
        Download