Analysis

  • max time kernel
    144s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 18:29

General

  • Target

    54b6ce2663e7cdf44db37419da499fa88c6369a9a5da633254e0d9d09d82eca8.exe

  • Size

    23KB

  • MD5

    be87ae8f4a404b6d7506d44fd6f0b999

  • SHA1

    230dc14941c6d7e56f75473059ad4c867147c4a9

  • SHA256

    54b6ce2663e7cdf44db37419da499fa88c6369a9a5da633254e0d9d09d82eca8

  • SHA512

    5f2fe1e0a1998e675b97733d1371e1eb2d68110461a5c1eb7bf6459127428d4d8fb55ca07b300184e2986208dc1cd98f441751dcd4f805a1d156d493967aa953

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

192.168.1.10:5252

Mutex

9dce19494c571162a06873106ec1fb31

Attributes
  • reg_key

    9dce19494c571162a06873106ec1fb31

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54b6ce2663e7cdf44db37419da499fa88c6369a9a5da633254e0d9d09d82eca8.exe
    "C:\Users\Admin\AppData\Local\Temp\54b6ce2663e7cdf44db37419da499fa88c6369a9a5da633254e0d9d09d82eca8.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4320

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    23KB

    MD5

    be87ae8f4a404b6d7506d44fd6f0b999

    SHA1

    230dc14941c6d7e56f75473059ad4c867147c4a9

    SHA256

    54b6ce2663e7cdf44db37419da499fa88c6369a9a5da633254e0d9d09d82eca8

    SHA512

    5f2fe1e0a1998e675b97733d1371e1eb2d68110461a5c1eb7bf6459127428d4d8fb55ca07b300184e2986208dc1cd98f441751dcd4f805a1d156d493967aa953

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

    Filesize

    23KB

    MD5

    be87ae8f4a404b6d7506d44fd6f0b999

    SHA1

    230dc14941c6d7e56f75473059ad4c867147c4a9

    SHA256

    54b6ce2663e7cdf44db37419da499fa88c6369a9a5da633254e0d9d09d82eca8

    SHA512

    5f2fe1e0a1998e675b97733d1371e1eb2d68110461a5c1eb7bf6459127428d4d8fb55ca07b300184e2986208dc1cd98f441751dcd4f805a1d156d493967aa953

  • memory/3016-131-0x0000000000000000-mapping.dmp

  • memory/3016-134-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/3016-137-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4320-136-0x0000000000000000-mapping.dmp

  • memory/4724-130-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4724-135-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB