Analysis

  • max time kernel
    187s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 01:57

General

  • Target

    0f7cc6d0db24a3232849b92cc1822a0e131511af92e057e675855610ff1e6b55.exe

  • Size

    139KB

  • MD5

    776f742cd640743feaaa39b4b27ad12c

  • SHA1

    84dc74a54cc278387943aa2900f746e1f7f3ea30

  • SHA256

    0f7cc6d0db24a3232849b92cc1822a0e131511af92e057e675855610ff1e6b55

  • SHA512

    c7fa1db3539373ad2df413a1309b8b02e4a156e57580892364e24a771fc55a9f968a844cd2d343fcf112e1131aa84e4ce2ab8f77aaae7d21bb440cde02904098

  • SSDEEP

    3072:wbR4hxLB88ANRvvE7pjYFoqphjsjwoHlppHGtveYVywoE:5h1BQNRvvE7pjYFoqphjsjwoHlppH4px

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:1177

Mutex

12d9c0ae3adc99cd1abd645642722abc

Attributes
  • reg_key

    12d9c0ae3adc99cd1abd645642722abc

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Loads dropped DLL 2 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f7cc6d0db24a3232849b92cc1822a0e131511af92e057e675855610ff1e6b55.exe
    "C:\Users\Admin\AppData\Local\Temp\0f7cc6d0db24a3232849b92cc1822a0e131511af92e057e675855610ff1e6b55.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:776
      • C:\Users\Admin\server.exe
        "C:\Users\Admin\server.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:376
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    23KB

    MD5

    49b8fb8e6490e14f9ced3ee24093e060

    SHA1

    096c5c19b3ff605d1cc3e166907dd1bf71f4eb4e

    SHA256

    5180004e948876d32cfaec878626c1a85ae77abc9a70fb12756bbdc72a01da0e

    SHA512

    66b9ef3b7ec8759b46464744f579b6515d09f9cc50845d7e2ad991e049cdd78019ba89385e254aa7d98438e879c346f14d9df6b9f472f99cdcba1136c4225b5d

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

    Filesize

    23KB

    MD5

    49b8fb8e6490e14f9ced3ee24093e060

    SHA1

    096c5c19b3ff605d1cc3e166907dd1bf71f4eb4e

    SHA256

    5180004e948876d32cfaec878626c1a85ae77abc9a70fb12756bbdc72a01da0e

    SHA512

    66b9ef3b7ec8759b46464744f579b6515d09f9cc50845d7e2ad991e049cdd78019ba89385e254aa7d98438e879c346f14d9df6b9f472f99cdcba1136c4225b5d

  • C:\Users\Admin\server.exe

    Filesize

    23KB

    MD5

    49b8fb8e6490e14f9ced3ee24093e060

    SHA1

    096c5c19b3ff605d1cc3e166907dd1bf71f4eb4e

    SHA256

    5180004e948876d32cfaec878626c1a85ae77abc9a70fb12756bbdc72a01da0e

    SHA512

    66b9ef3b7ec8759b46464744f579b6515d09f9cc50845d7e2ad991e049cdd78019ba89385e254aa7d98438e879c346f14d9df6b9f472f99cdcba1136c4225b5d

  • C:\Users\Admin\server.exe

    Filesize

    23KB

    MD5

    49b8fb8e6490e14f9ced3ee24093e060

    SHA1

    096c5c19b3ff605d1cc3e166907dd1bf71f4eb4e

    SHA256

    5180004e948876d32cfaec878626c1a85ae77abc9a70fb12756bbdc72a01da0e

    SHA512

    66b9ef3b7ec8759b46464744f579b6515d09f9cc50845d7e2ad991e049cdd78019ba89385e254aa7d98438e879c346f14d9df6b9f472f99cdcba1136c4225b5d

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

    Filesize

    23KB

    MD5

    49b8fb8e6490e14f9ced3ee24093e060

    SHA1

    096c5c19b3ff605d1cc3e166907dd1bf71f4eb4e

    SHA256

    5180004e948876d32cfaec878626c1a85ae77abc9a70fb12756bbdc72a01da0e

    SHA512

    66b9ef3b7ec8759b46464744f579b6515d09f9cc50845d7e2ad991e049cdd78019ba89385e254aa7d98438e879c346f14d9df6b9f472f99cdcba1136c4225b5d

  • \Users\Admin\server.exe

    Filesize

    23KB

    MD5

    49b8fb8e6490e14f9ced3ee24093e060

    SHA1

    096c5c19b3ff605d1cc3e166907dd1bf71f4eb4e

    SHA256

    5180004e948876d32cfaec878626c1a85ae77abc9a70fb12756bbdc72a01da0e

    SHA512

    66b9ef3b7ec8759b46464744f579b6515d09f9cc50845d7e2ad991e049cdd78019ba89385e254aa7d98438e879c346f14d9df6b9f472f99cdcba1136c4225b5d

  • memory/376-62-0x0000000000000000-mapping.dmp

  • memory/376-66-0x0000000074480000-0x0000000074A2B000-memory.dmp

    Filesize

    5.7MB

  • memory/376-68-0x0000000074480000-0x0000000074A2B000-memory.dmp

    Filesize

    5.7MB

  • memory/540-69-0x0000000000000000-mapping.dmp

  • memory/776-56-0x0000000000000000-mapping.dmp

  • memory/776-60-0x0000000074480000-0x0000000074A2B000-memory.dmp

    Filesize

    5.7MB

  • memory/776-67-0x0000000074480000-0x0000000074A2B000-memory.dmp

    Filesize

    5.7MB

  • memory/2040-54-0x0000000076381000-0x0000000076383000-memory.dmp

    Filesize

    8KB