Analysis

  • max time kernel
    150s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:40

General

  • Target

    3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2.exe

  • Size

    182KB

  • MD5

    c413ef6a9921f37a7766c736c02958a2

  • SHA1

    a20883218ee4067ed97e762b4f1d693ce0e9c927

  • SHA256

    3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2

  • SHA512

    dadf781ecb5513f6b3d79fa14f4bfeace823e90ad8920e8b8f3d795334e272a929f18becabb7c6c88b7e2ff1f1212f2031c306edadc3ebeec960e5cbe627bad4

  • SSDEEP

    1536:FvZiUkdJRWuBIu/R1jn9+OhU0D+1RamKcqkPAtk7jKyKPNjiD/FbprdIBS22bfUz:FhiUOJ0GjoO+0bm5rey2OdIBJiw

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

mahamadhawrami11.ddns.net:1177

Mutex

3c85567a562aef333ed82feac3a2b02e

Attributes
  • reg_key

    3c85567a562aef333ed82feac3a2b02e

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 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 use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2.exe
    "C:\Users\Admin\AppData\Local\Temp\3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Roaming\internetfree.exe
      "C:\Users\Admin\AppData\Roaming\internetfree.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\internetfree.exe" "internetfree.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1360

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\internetfree.exe

    Filesize

    182KB

    MD5

    c413ef6a9921f37a7766c736c02958a2

    SHA1

    a20883218ee4067ed97e762b4f1d693ce0e9c927

    SHA256

    3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2

    SHA512

    dadf781ecb5513f6b3d79fa14f4bfeace823e90ad8920e8b8f3d795334e272a929f18becabb7c6c88b7e2ff1f1212f2031c306edadc3ebeec960e5cbe627bad4

  • C:\Users\Admin\AppData\Roaming\internetfree.exe

    Filesize

    182KB

    MD5

    c413ef6a9921f37a7766c736c02958a2

    SHA1

    a20883218ee4067ed97e762b4f1d693ce0e9c927

    SHA256

    3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2

    SHA512

    dadf781ecb5513f6b3d79fa14f4bfeace823e90ad8920e8b8f3d795334e272a929f18becabb7c6c88b7e2ff1f1212f2031c306edadc3ebeec960e5cbe627bad4

  • \Users\Admin\AppData\Roaming\internetfree.exe

    Filesize

    182KB

    MD5

    c413ef6a9921f37a7766c736c02958a2

    SHA1

    a20883218ee4067ed97e762b4f1d693ce0e9c927

    SHA256

    3016b73d983f1d79e2f66e15384558829ed16447b17b15236a15f02b9e461ff2

    SHA512

    dadf781ecb5513f6b3d79fa14f4bfeace823e90ad8920e8b8f3d795334e272a929f18becabb7c6c88b7e2ff1f1212f2031c306edadc3ebeec960e5cbe627bad4

  • memory/1208-54-0x00000000753F1000-0x00000000753F3000-memory.dmp

    Filesize

    8KB

  • memory/1208-55-0x0000000074130000-0x00000000746DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1208-61-0x0000000074130000-0x00000000746DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1360-64-0x0000000000000000-mapping.dmp

  • memory/1368-57-0x0000000000000000-mapping.dmp

  • memory/1368-62-0x0000000074130000-0x00000000746DB000-memory.dmp

    Filesize

    5.7MB

  • memory/1368-63-0x0000000074130000-0x00000000746DB000-memory.dmp

    Filesize

    5.7MB