Analysis

  • max time kernel
    114s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2025 12:16

General

  • Target

    20b4a034f23c409cefa0929efb3e89dcafe946f8b4f2e79a8990ce1d25203003N.exe

  • Size

    120KB

  • MD5

    0a9088378993c55e870062e3e24c62d0

  • SHA1

    1c81453c1a0543211f81d10d61a4cb350fb3c7a4

  • SHA256

    20b4a034f23c409cefa0929efb3e89dcafe946f8b4f2e79a8990ce1d25203003

  • SHA512

    60d1ff490f1595c060c936ee5abac3f5f0920726053638abb0b9df272924a859c81cc17729edc59170786978df29773a2d791909649154eba76d09dc05c61840

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLVg8:P5eznsjsguGDFqGZ2rDLl

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • splitter

    |'|'|

Signatures

  • Njrat family
  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 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 25 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20b4a034f23c409cefa0929efb3e89dcafe946f8b4f2e79a8990ce1d25203003N.exe
    "C:\Users\Admin\AppData\Local\Temp\20b4a034f23c409cefa0929efb3e89dcafe946f8b4f2e79a8990ce1d25203003N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2900
    • 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:3956
      • 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:2080
        • 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:5024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

    Filesize

    400B

    MD5

    af005173cce1850423f0f999693487cb

    SHA1

    950bf700178ab02d75b959cf92f1d493acba31ef

    SHA256

    38615066450a66b2950aa946bf8eea01f16e1f0dfc7c0748609e195c317c2a7a

    SHA512

    feb37c884eba52c5e74a3a9b1c604d42e6b25b98a1389ba9677361f756897d169824b9d7c214e150f6a1f07e7e63440baa07e6119aa08b919db0533a9fdb22bc

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

    Filesize

    120KB

    MD5

    9a57a7726a7b30f4861d44bdb165bd17

    SHA1

    ba60db3a115fcdbce61dc6ed3d3b5d124adf513c

    SHA256

    71c35d3bb6bd88ecca400f0d4452c342b3e7bb212d0670458c48e523be5c3c23

    SHA512

    4d43a6613471e1a900656b5e5d4cc44ed14498b98c23511067cc249a7afb38159715c7d37043a01d3716fa2b16d549347fa550a9742dff9eb03d318baaeb8684

  • memory/2080-24-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2080-31-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2080-28-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2080-30-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-7-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-20-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-19-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-0-0x0000000074962000-0x0000000074963000-memory.dmp

    Filesize

    4KB

  • memory/2900-6-0x0000000074962000-0x0000000074963000-memory.dmp

    Filesize

    4KB

  • memory/2900-2-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/2900-1-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/3956-23-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/3956-22-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/3956-21-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB

  • memory/3956-29-0x0000000074960000-0x0000000074F11000-memory.dmp

    Filesize

    5.7MB