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Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27/11/2024, 07:14

General

  • Target

    37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe

  • Size

    863KB

  • MD5

    cf620f72719d99e50a6a709fd6518f5c

  • SHA1

    fc4263088c1a08d73cc4ff2f50b7d4e0637f42b5

  • SHA256

    37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b

  • SHA512

    2114b8976f4338a002be4ccb4ca2bb3c9e72b474af2f781c5a5b47908135680f47a0735e301dd9cb46da4046645d6e2fbef1fd7e03c123be12f9e8a99f677f03

  • SSDEEP

    12288:q4lsXvtCcmVVXzzn4PJAahPl/QEdIMiVbHydEIJnJWUgav7o6Fq9MmCSm:q4lavt0LkLL9IMixoEgeajBFq9MmCSm

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

10.10.10.10:5552

Mutex

0dc24807523d3cd24b54cd0996e4c49b

Attributes
  • reg_key

    0dc24807523d3cd24b54cd0996e4c49b

  • splitter

    |'|'|

Signatures

  • Njrat family
  • UAC bypass 3 TTPs 2 IoCs
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe
    "C:\Users\Admin\AppData\Local\Temp\37f025645ccb6d101c7110e06d8cc2332cd0ed72188be80fadc5efb7963b356b.exe"
    1⤵
    • UAC bypass
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2536
    • C:\Users\Admin\AppData\Local\Temp\7069\7069.exe
      "C:\Users\Admin\AppData\Local\Temp\7069\7069.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2500
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\7069\7069.exe

    Filesize

    23KB

    MD5

    87ecb116057477202650a2a1527a19db

    SHA1

    9b73ea528f3020eba4ebdc1a6d03ca62b9ba70e2

    SHA256

    94626eea10b73145b62654f4dcd1c2157137bf3a3abbbb666167f480e516976c

    SHA512

    2775e891a5f7cbab7d7f2847f424514ceebd1b3d6e0ae939db379bddc9eaec4cb207455c126646164951fed43585b93ae31b9a6957721255a7c413254ce11193

  • memory/2532-14-0x0000000072DB1000-0x0000000072DB2000-memory.dmp

    Filesize

    4KB

  • memory/2532-15-0x0000000072DB0000-0x000000007335B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-16-0x0000000072DB0000-0x000000007335B000-memory.dmp

    Filesize

    5.7MB

  • memory/2532-24-0x0000000072DB0000-0x000000007335B000-memory.dmp

    Filesize

    5.7MB