Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06-10-2024 10:50

General

  • Target

    920872696e5911393610e0f5967c530a197c2ec43fa1f0ad30792712e8f3f019.exe

  • Size

    23KB

  • MD5

    a63f4904086eef25d893931a1d85db94

  • SHA1

    b5352ea9de91d7d106f62a9f012e893423a00646

  • SHA256

    920872696e5911393610e0f5967c530a197c2ec43fa1f0ad30792712e8f3f019

  • SHA512

    48472562a07994708067d4ea0187b6d0fc038f1a4e1a6f7caaa9273ff1dfb8fff11ad6923a0db34a1526f5b1cf402bdbf4cadb75da14d61adb09e36bcbdfb2c2

  • SSDEEP

    384:QbNfSgxbOprgPdUOSU0kqmkd6agwGNbeJ0mRvR6JZlbw8hqIusZzZnd:8S+6BVU01Rpcnuy

Malware Config

Extracted

Family

njrat

Version

0.7d

C2

45.76.29.16:5552

Mutex

738e6a0cd25e647b7eb7d6cdad689401

Attributes
  • reg_key

    738e6a0cd25e647b7eb7d6cdad689401

  • splitter

    |'|'|

Signatures

  • 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 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\920872696e5911393610e0f5967c530a197c2ec43fa1f0ad30792712e8f3f019.exe
    "C:\Users\Admin\AppData\Local\Temp\920872696e5911393610e0f5967c530a197c2ec43fa1f0ad30792712e8f3f019.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\ProgramData\systemd.exe
      "C:\ProgramData\systemd.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:2172
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\systemd.exe" "systemd.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\systemd.exe

    Filesize

    23KB

    MD5

    a63f4904086eef25d893931a1d85db94

    SHA1

    b5352ea9de91d7d106f62a9f012e893423a00646

    SHA256

    920872696e5911393610e0f5967c530a197c2ec43fa1f0ad30792712e8f3f019

    SHA512

    48472562a07994708067d4ea0187b6d0fc038f1a4e1a6f7caaa9273ff1dfb8fff11ad6923a0db34a1526f5b1cf402bdbf4cadb75da14d61adb09e36bcbdfb2c2

  • memory/2172-11-0x00000000743E0000-0x000000007498B000-memory.dmp

    Filesize

    5.7MB

  • memory/2172-12-0x00000000743E0000-0x000000007498B000-memory.dmp

    Filesize

    5.7MB

  • memory/2172-14-0x00000000743E0000-0x000000007498B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-0-0x00000000743E1000-0x00000000743E2000-memory.dmp

    Filesize

    4KB

  • memory/2568-2-0x00000000743E0000-0x000000007498B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-1-0x00000000743E0000-0x000000007498B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-10-0x00000000743E0000-0x000000007498B000-memory.dmp

    Filesize

    5.7MB