Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 16:23

General

  • Target

    dfebc469780c2c152b72580384ef4d60927a6de2d1b566a1a96fe943dd3251c6.exe

  • Size

    307KB

  • MD5

    32db0e115ffc619b625e5bf83c87b5c0

  • SHA1

    e55a1f1984f9b3f414f6f98b211ba0dee582c415

  • SHA256

    dfebc469780c2c152b72580384ef4d60927a6de2d1b566a1a96fe943dd3251c6

  • SHA512

    b7bcff588a4fee53ba4356b6b1d29234857bbd5e9092b5a74e4531349857f66e1ac67b5a9df9cb6416b084ab1895c98532411f3063508bd6195de261867ac13d

  • SSDEEP

    3072:vnkAK3MylIIn3FIyraBOggRibieoRv8w5hhCS48:v8CIn3FIyyoJNhhCS48

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfebc469780c2c152b72580384ef4d60927a6de2d1b566a1a96fe943dd3251c6.exe
    "C:\Users\Admin\AppData\Local\Temp\dfebc469780c2c152b72580384ef4d60927a6de2d1b566a1a96fe943dd3251c6.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2760
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {8C523B27-2D3C-42E6-8241-20892641C433} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1248
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1272
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      C:\Users\Admin\AppData\Local\Temp/Server.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Server.exe

    Filesize

    307KB

    MD5

    32db0e115ffc619b625e5bf83c87b5c0

    SHA1

    e55a1f1984f9b3f414f6f98b211ba0dee582c415

    SHA256

    dfebc469780c2c152b72580384ef4d60927a6de2d1b566a1a96fe943dd3251c6

    SHA512

    b7bcff588a4fee53ba4356b6b1d29234857bbd5e9092b5a74e4531349857f66e1ac67b5a9df9cb6416b084ab1895c98532411f3063508bd6195de261867ac13d

  • memory/1272-9-0x0000000074410000-0x0000000074AFE000-memory.dmp

    Filesize

    6.9MB

  • memory/1272-10-0x00000000008F0000-0x0000000000944000-memory.dmp

    Filesize

    336KB

  • memory/1272-11-0x0000000074410000-0x0000000074AFE000-memory.dmp

    Filesize

    6.9MB

  • memory/1272-12-0x0000000074410000-0x0000000074AFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2136-14-0x0000000000F90000-0x0000000000FE4000-memory.dmp

    Filesize

    336KB

  • memory/2648-0-0x000000007441E000-0x000000007441F000-memory.dmp

    Filesize

    4KB

  • memory/2648-1-0x0000000001300000-0x0000000001354000-memory.dmp

    Filesize

    336KB

  • memory/2648-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

    Filesize

    6.9MB

  • memory/2648-5-0x000000007441E000-0x000000007441F000-memory.dmp

    Filesize

    4KB

  • memory/2648-6-0x0000000074410000-0x0000000074AFE000-memory.dmp

    Filesize

    6.9MB