Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-09-2024 22:38

General

  • Target

    6b57be73b02a18ad54952df4c059f30fbc75018e570ac2ef69ee0d78157fbbbd.exe

  • Size

    116KB

  • MD5

    05a50ba89e15b4c1a9a2f4c03afb083b

  • SHA1

    39278a270fbdcf3b45b1a723dae086d1edc68c40

  • SHA256

    6b57be73b02a18ad54952df4c059f30fbc75018e570ac2ef69ee0d78157fbbbd

  • SHA512

    9e6e9ed9cbef01080eee0805247f4a916fbcf7047cd803ac5957160fe880b82cbb447fb86fe414ec124539b75c5b736c1ec955dc2f40916d68c61173d9a69413

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLK:P5eznsjsguGDFqGZ2rDLK

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 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.

  • Program crash 1 IoCs
  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b57be73b02a18ad54952df4c059f30fbc75018e570ac2ef69ee0d78157fbbbd.exe
    "C:\Users\Admin\AppData\Local\Temp\6b57be73b02a18ad54952df4c059f30fbc75018e570ac2ef69ee0d78157fbbbd.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
      "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        PID:760
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 760 -s 80
          4⤵
          • Program crash
          PID:1340
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1020
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1708
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 760 -ip 760
    1⤵
      PID:648

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

      Filesize

      116KB

      MD5

      ec3ecf11d6334435b7265df38512f868

      SHA1

      d9caa61ef6484fd9da1c41cb1181ddf0ac9c97bc

      SHA256

      a0ae9b006f85f5837a8efac1613a14507372176d7a345548a6e47ebd10770988

      SHA512

      6be1e95ec87bed9412889e045d04e3f5b05bc162647273478d9ae858664e3e250589d1576ff0ae0643b8332fcc6f75652b6e4b9f26a7e96f955b66bf187b587c

    • memory/1020-24-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/1020-33-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1020-32-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1020-30-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1020-29-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1704-7-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1704-19-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1704-20-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1704-0-0x0000000074A92000-0x0000000074A93000-memory.dmp

      Filesize

      4KB

    • memory/1704-6-0x0000000074A92000-0x0000000074A93000-memory.dmp

      Filesize

      4KB

    • memory/1704-2-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1704-1-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1756-22-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1756-21-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1756-23-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB

    • memory/1756-31-0x0000000074A90000-0x0000000075041000-memory.dmp

      Filesize

      5.7MB