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Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2024, 19:27

General

  • Target

    ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe

  • Size

    43KB

  • MD5

    1722c8695ca31163d93c6cf56f0c8530

  • SHA1

    aa81bc701216ec1441565275c0bfab69376757a6

  • SHA256

    ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e

  • SHA512

    50830a24bb50df4db8f78522f9b4f65f689fc75d6503c1b4c8a4bb7a662e340adf3f80211523d90a4b838c1fc00d1dc01b1711ab954670b2f0ff609e9d926a1d

  • SSDEEP

    384:ZZyNPzxdW/IUyNZCB5EFiLgVOcEvbl56lpzYIij+ZsNO3PlpJKkkjh/TzF7pWnt8:7oLxIghNZk5EFiLCO7bypuXQ/oQy3+L

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

178.187.164.4:7777

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 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe
    "C:\Users\Admin\AppData\Local\Temp\ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Windows\Dllhost.exe
      "C:\Windows\Dllhost.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
      PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\Dllhost.exe

    Filesize

    43KB

    MD5

    1722c8695ca31163d93c6cf56f0c8530

    SHA1

    aa81bc701216ec1441565275c0bfab69376757a6

    SHA256

    ef432c721d03728f4828aaecd2db265474fc13306b0d0f042df5025f2b4d9e2e

    SHA512

    50830a24bb50df4db8f78522f9b4f65f689fc75d6503c1b4c8a4bb7a662e340adf3f80211523d90a4b838c1fc00d1dc01b1711ab954670b2f0ff609e9d926a1d

  • memory/2060-0-0x0000000001080000-0x0000000001092000-memory.dmp

    Filesize

    72KB

  • memory/2060-1-0x0000000074060000-0x000000007474E000-memory.dmp

    Filesize

    6.9MB

  • memory/2060-2-0x00000000006B0000-0x00000000006F0000-memory.dmp

    Filesize

    256KB

  • memory/2060-12-0x0000000074060000-0x000000007474E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-9-0x0000000000AE0000-0x0000000000AF2000-memory.dmp

    Filesize

    72KB

  • memory/3036-10-0x0000000074060000-0x000000007474E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-11-0x0000000004630000-0x0000000004670000-memory.dmp

    Filesize

    256KB

  • memory/3036-14-0x0000000074060000-0x000000007474E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-15-0x0000000004630000-0x0000000004670000-memory.dmp

    Filesize

    256KB