Analysis

  • max time kernel
    119s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    20-01-2025 22:08

General

  • Target

    f52d27bb4107f3458817f045ccb5e0f8c055db0f4b438c6755bcdd454485ae90N.exe

  • Size

    23KB

  • MD5

    02461793122f82566881802dc6612950

  • SHA1

    77e7337c7471ee341389c6b0dfe49b22540da930

  • SHA256

    f52d27bb4107f3458817f045ccb5e0f8c055db0f4b438c6755bcdd454485ae90

  • SHA512

    37631068d2e7cdb12ad0adb0af50ad19f3a4532bc508299342612c661b86ba9abbf82a2880f216045f6417e9ea5931a25350d80d6b7280b35bd8e9a30c0c3453

  • SSDEEP

    384:PluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZ9XI:4OmhtIiRpcnu1

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Lammer

C2

ie-serving.gl.at.ply.gg:18976

Mutex

d386661cfe8f30c3a692533641b57806

Attributes
  • reg_key

    d386661cfe8f30c3a692533641b57806

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f52d27bb4107f3458817f045ccb5e0f8c055db0f4b438c6755bcdd454485ae90N.exe
    "C:\Users\Admin\AppData\Local\Temp\f52d27bb4107f3458817f045ccb5e0f8c055db0f4b438c6755bcdd454485ae90N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Roaming\explore.exe
      "C:\Users\Admin\AppData\Roaming\explore.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:1984
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explore.exe" "explore.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:3016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\explore.exe

    Filesize

    23KB

    MD5

    02461793122f82566881802dc6612950

    SHA1

    77e7337c7471ee341389c6b0dfe49b22540da930

    SHA256

    f52d27bb4107f3458817f045ccb5e0f8c055db0f4b438c6755bcdd454485ae90

    SHA512

    37631068d2e7cdb12ad0adb0af50ad19f3a4532bc508299342612c661b86ba9abbf82a2880f216045f6417e9ea5931a25350d80d6b7280b35bd8e9a30c0c3453

  • memory/1984-10-0x0000000073EF0000-0x000000007449B000-memory.dmp

    Filesize

    5.7MB

  • memory/1984-12-0x0000000073EF0000-0x000000007449B000-memory.dmp

    Filesize

    5.7MB

  • memory/1984-14-0x0000000073EF0000-0x000000007449B000-memory.dmp

    Filesize

    5.7MB

  • memory/2368-0-0x0000000073EF1000-0x0000000073EF2000-memory.dmp

    Filesize

    4KB

  • memory/2368-1-0x0000000073EF0000-0x000000007449B000-memory.dmp

    Filesize

    5.7MB

  • memory/2368-2-0x0000000073EF0000-0x000000007449B000-memory.dmp

    Filesize

    5.7MB

  • memory/2368-11-0x0000000073EF0000-0x000000007449B000-memory.dmp

    Filesize

    5.7MB