Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-09-2024 15:30

General

  • Target

    0958B133909FD7E905BFDF6D07864AFA.exe

  • Size

    25KB

  • MD5

    0958b133909fd7e905bfdf6d07864afa

  • SHA1

    70c2bbe1328cde44369a2468846acf221083f858

  • SHA256

    b0ae1dd93add4f91d67c516307541ffbeb8cb2696671d18248992f2ebdfb10d8

  • SHA512

    377e31e99476fd8fa5922ea04928539c943832919564526ec030cbb8ea91112a566d996462da655aab1b654c6123c7c7942b48e521c5864c1955981ecfaa6064

  • SSDEEP

    768:svpjb780jOidrnhjRKPj/AJUu7V3yiEs8IsBy9RvPdOi:QjzjOah4jo62yiY9ByvVOi

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

0.tcp.eu.ngrok.io:18863

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\0958B133909FD7E905BFDF6D07864AFA.exe
    "C:\Users\Admin\AppData\Local\Temp\0958B133909FD7E905BFDF6D07864AFA.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\Update.exe
      "C:\Windows\Update.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\system32\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2772
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BD5D81BF-9431-400F-854E-92F9EA8E9EE9} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      PID:1700
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      PID:852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Update.exe

    Filesize

    25KB

    MD5

    0958b133909fd7e905bfdf6d07864afa

    SHA1

    70c2bbe1328cde44369a2468846acf221083f858

    SHA256

    b0ae1dd93add4f91d67c516307541ffbeb8cb2696671d18248992f2ebdfb10d8

    SHA512

    377e31e99476fd8fa5922ea04928539c943832919564526ec030cbb8ea91112a566d996462da655aab1b654c6123c7c7942b48e521c5864c1955981ecfaa6064

  • memory/1700-20-0x00000000010C0000-0x00000000010C8000-memory.dmp

    Filesize

    32KB

  • memory/2948-0-0x000007FEF6513000-0x000007FEF6514000-memory.dmp

    Filesize

    4KB

  • memory/2948-1-0x0000000000190000-0x0000000000198000-memory.dmp

    Filesize

    32KB

  • memory/2948-2-0x0000000000250000-0x0000000000262000-memory.dmp

    Filesize

    72KB

  • memory/2948-3-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp

    Filesize

    9.9MB

  • memory/2948-12-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp

    Filesize

    9.9MB

  • memory/3016-9-0x0000000000290000-0x0000000000298000-memory.dmp

    Filesize

    32KB

  • memory/3016-10-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp

    Filesize

    9.9MB

  • memory/3016-11-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp

    Filesize

    9.9MB

  • memory/3016-15-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp

    Filesize

    9.9MB

  • memory/3016-16-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp

    Filesize

    9.9MB