Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 08:52

General

  • Target

    System.exe

  • Size

    43KB

  • MD5

    79883d324ddf30f7c4d20587d9bf1d42

  • SHA1

    3bd4ab4de6cdfa463a5777c55d216fdd31d85d37

  • SHA256

    f387495a19565298da82fe21ab89a18793055c751557ed1e10145fe07f0d0cd3

  • SHA512

    efbd2c828f2e361e6555aebd27e18ca13d82c99d5bd010ba8931901fc2bdd182080232e20f60d3faa138654adf4944541cd914946ca12ce658542db37942ad5d

  • SSDEEP

    384:xZy5n2+Ww9xo1iDc8y2O1kl2thNElAWbDdzmzcIij+ZsNO3PlpJKkkjh/TzF7pWu:jIqU452k06ibmuXQ/o81+Lr

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

hospital-selling.gl.at.ply.gg:4839

Mutex

Bloxstrap Updater

Attributes
  • reg_key

    Bloxstrap Updater

  • splitter

    |Hassan|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 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 2 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\System.exe
    "C:\Users\Admin\AppData\Local\Temp\System.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Windows\Dllhostt.exe
      "C:\Windows\Dllhostt.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\Dllhostt.exe

    Filesize

    43KB

    MD5

    79883d324ddf30f7c4d20587d9bf1d42

    SHA1

    3bd4ab4de6cdfa463a5777c55d216fdd31d85d37

    SHA256

    f387495a19565298da82fe21ab89a18793055c751557ed1e10145fe07f0d0cd3

    SHA512

    efbd2c828f2e361e6555aebd27e18ca13d82c99d5bd010ba8931901fc2bdd182080232e20f60d3faa138654adf4944541cd914946ca12ce658542db37942ad5d

  • memory/1856-9-0x0000000073EA0000-0x000000007458E000-memory.dmp

    Filesize

    6.9MB

  • memory/1856-11-0x00000000011F0000-0x0000000001202000-memory.dmp

    Filesize

    72KB

  • memory/1856-12-0x0000000073EA0000-0x000000007458E000-memory.dmp

    Filesize

    6.9MB

  • memory/1856-13-0x0000000073EA0000-0x000000007458E000-memory.dmp

    Filesize

    6.9MB

  • memory/1856-14-0x0000000073EA0000-0x000000007458E000-memory.dmp

    Filesize

    6.9MB

  • memory/2264-0-0x0000000073EAE000-0x0000000073EAF000-memory.dmp

    Filesize

    4KB

  • memory/2264-1-0x00000000002C0000-0x00000000002D2000-memory.dmp

    Filesize

    72KB

  • memory/2264-2-0x0000000073EA0000-0x000000007458E000-memory.dmp

    Filesize

    6.9MB

  • memory/2264-10-0x0000000073EA0000-0x000000007458E000-memory.dmp

    Filesize

    6.9MB