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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 20:58

General

  • Target

    Server.exe

  • Size

    29KB

  • MD5

    f7d0b25c3115647720776246e58f066a

  • SHA1

    7126e6a1e589245a84733375c25c598ad79c6d17

  • SHA256

    9f45c1e83903345f6e2327b3efa04767549b5732a80d9a67374182c65f110660

  • SHA512

    10c5188f4e583cea6e3c098de19db1a3a2fe7b3be14e5fc61e1c5d447f1b16333c174862b47a6cca41a5e7c2cb7067cc172b9e56bf6954c100f721210dcb8654

  • SSDEEP

    768:aQv/27NYsDkfZPoIqlHepBKh0p29SgRru:Pm7N143wEKhG29jru

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

hacked

C2

niras.no-ip.org:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    29KB

    MD5

    f7d0b25c3115647720776246e58f066a

    SHA1

    7126e6a1e589245a84733375c25c598ad79c6d17

    SHA256

    9f45c1e83903345f6e2327b3efa04767549b5732a80d9a67374182c65f110660

    SHA512

    10c5188f4e583cea6e3c098de19db1a3a2fe7b3be14e5fc61e1c5d447f1b16333c174862b47a6cca41a5e7c2cb7067cc172b9e56bf6954c100f721210dcb8654

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

    Filesize

    29KB

    MD5

    f7d0b25c3115647720776246e58f066a

    SHA1

    7126e6a1e589245a84733375c25c598ad79c6d17

    SHA256

    9f45c1e83903345f6e2327b3efa04767549b5732a80d9a67374182c65f110660

    SHA512

    10c5188f4e583cea6e3c098de19db1a3a2fe7b3be14e5fc61e1c5d447f1b16333c174862b47a6cca41a5e7c2cb7067cc172b9e56bf6954c100f721210dcb8654

  • \Users\Admin\AppData\Local\Temp\Trojan.exe

    Filesize

    29KB

    MD5

    f7d0b25c3115647720776246e58f066a

    SHA1

    7126e6a1e589245a84733375c25c598ad79c6d17

    SHA256

    9f45c1e83903345f6e2327b3efa04767549b5732a80d9a67374182c65f110660

    SHA512

    10c5188f4e583cea6e3c098de19db1a3a2fe7b3be14e5fc61e1c5d447f1b16333c174862b47a6cca41a5e7c2cb7067cc172b9e56bf6954c100f721210dcb8654

  • memory/1376-63-0x00000000749D0000-0x0000000074F7B000-memory.dmp

    Filesize

    5.7MB

  • memory/1376-64-0x00000000749D0000-0x0000000074F7B000-memory.dmp

    Filesize

    5.7MB

  • memory/1720-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

    Filesize

    8KB

  • memory/1720-61-0x00000000749D0000-0x0000000074F7B000-memory.dmp

    Filesize

    5.7MB