Analysis

  • max time kernel
    120s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-11-2024 02:18

General

  • Target

    52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe

  • Size

    23KB

  • MD5

    fff135266da36c732fadabe4050924d0

  • SHA1

    474e05190a77304be737917d9184f27c2f607dab

  • SHA256

    52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234e

  • SHA512

    2cb148daa402625b544b1eba3e7a007a2b1d8e1562dc8afca7743f7de915580562ba6b57fdc499fe541f56ad43f95d1cb499e2dd48f9ef6cb1cd8c475bb43e40

  • SSDEEP

    384:CcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZtQ:V30py6vhxaRpcnuZ

Malware Config

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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 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).

  • 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 3 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe
    "C:\Users\Admin\AppData\Local\Temp\52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234eN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4780
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:5064

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    23KB

    MD5

    fff135266da36c732fadabe4050924d0

    SHA1

    474e05190a77304be737917d9184f27c2f607dab

    SHA256

    52c8a1e29d505d26eead9a4d8164aa45f445c6db20672d7cfc36a21a2ff4234e

    SHA512

    2cb148daa402625b544b1eba3e7a007a2b1d8e1562dc8afca7743f7de915580562ba6b57fdc499fe541f56ad43f95d1cb499e2dd48f9ef6cb1cd8c475bb43e40

  • memory/3340-13-0x0000000074A60000-0x0000000075011000-memory.dmp

    Filesize

    5.7MB

  • memory/3340-15-0x0000000074A60000-0x0000000075011000-memory.dmp

    Filesize

    5.7MB

  • memory/3340-16-0x0000000074A60000-0x0000000075011000-memory.dmp

    Filesize

    5.7MB

  • memory/4780-0-0x0000000074A62000-0x0000000074A63000-memory.dmp

    Filesize

    4KB

  • memory/4780-1-0x0000000074A60000-0x0000000075011000-memory.dmp

    Filesize

    5.7MB

  • memory/4780-2-0x0000000074A60000-0x0000000075011000-memory.dmp

    Filesize

    5.7MB

  • memory/4780-12-0x0000000074A60000-0x0000000075011000-memory.dmp

    Filesize

    5.7MB