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Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2024, 21:03

General

  • Target

    e77534b8bacdecc0e48f0a2c2e69005ab7570b8c5d9577616411d16109dfe2caN.exe

  • Size

    300KB

  • MD5

    b528fbd25da9e687c4ab9bb2e92699f0

  • SHA1

    1966bdb4c62f5cedd7fef4e8407c509976c229e0

  • SHA256

    e77534b8bacdecc0e48f0a2c2e69005ab7570b8c5d9577616411d16109dfe2ca

  • SHA512

    ba097e1fe3ca19322a099d61b506958f743184f274d187017a4d00a24b94e0d4d41de09ef108976db1fda84f55a36f78f82d535ced710d84f7974272fdf4083e

  • SSDEEP

    1536:vDvE9TzQlzEyQ3FKeh+cMGgdP2WW5MeGD7BKb7+it2SDS29xlqU3:vDvYgcscId+WWH2cDS29xlqU3

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

nano

C2

haraga.no-ip.org:5552

Mutex

9685b74638ccc581030bfdb825e77a1e

Attributes
  • reg_key

    9685b74638ccc581030bfdb825e77a1e

  • 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 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e77534b8bacdecc0e48f0a2c2e69005ab7570b8c5d9577616411d16109dfe2caN.exe
    "C:\Users\Admin\AppData\Local\Temp\e77534b8bacdecc0e48f0a2c2e69005ab7570b8c5d9577616411d16109dfe2caN.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Users\Admin\AppData\LocalzCKQfzctlg.exe
      "C:\Users\Admin\AppData\LocalzCKQfzctlg.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops autorun.inf file
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Users\Admin\AppData\LocalzCKQfzctlg.exe
        C:\Users\Admin\AppData\LocalzCKQfzctlg.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2864
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          "C:\Users\Admin\AppData\Local\Temp\server.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops autorun.inf file
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1116
          • C:\Users\Admin\AppData\Local\Temp\server.exe
            C:\Users\Admin\AppData\Local\Temp\server.exe
            5⤵
            • 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:2452
            • C:\Windows\SysWOW64\netsh.exe
              netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
              6⤵
              • Modifies Windows Firewall
              • Event Triggered Execution: Netsh Helper DLL
              • System Location Discovery: System Language Discovery
              PID:2196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalzCKQfzctlg.exe

    Filesize

    242KB

    MD5

    433ae07b66bf4e2dfe0c17044f07cd0d

    SHA1

    eef7146234aa72a8129319d4244dbe7ac95ea58c

    SHA256

    643290b2148f53b035be768bac88429db0a326faef5fe8420f12e754470a0e18

    SHA512

    d2e47855fc7f88b77019c8cebd32e119624147ea410fc798cd75a3ae82e8d11a5585eedf6ea44dac4fff0e3a5dd06375082e65708d75dc6d9604e0f0d596b009

  • memory/1116-59-0x0000000000210000-0x0000000000252000-memory.dmp

    Filesize

    264KB

  • memory/1640-13-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

    Filesize

    9.6MB

  • memory/1640-8-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

    Filesize

    9.6MB

  • memory/1640-10-0x000007FEF601E000-0x000007FEF601F000-memory.dmp

    Filesize

    4KB

  • memory/1640-0-0x000007FEF601E000-0x000007FEF601F000-memory.dmp

    Filesize

    4KB

  • memory/1640-12-0x0000000000FC0000-0x0000000000FD0000-memory.dmp

    Filesize

    64KB

  • memory/2568-44-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-40-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-15-0x0000000000250000-0x000000000025A000-memory.dmp

    Filesize

    40KB

  • memory/2568-46-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-45-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-11-0x00000000013A0000-0x00000000013E2000-memory.dmp

    Filesize

    264KB

  • memory/2568-43-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-42-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-41-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-14-0x00000000048B0000-0x00000000048F0000-memory.dmp

    Filesize

    256KB

  • memory/2568-39-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-38-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-37-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-9-0x000000007436E000-0x000000007436F000-memory.dmp

    Filesize

    4KB

  • memory/2568-51-0x00000000048B0000-0x00000000048F0000-memory.dmp

    Filesize

    256KB

  • memory/2568-20-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2568-19-0x00000000002E0000-0x00000000003E0000-memory.dmp

    Filesize

    1024KB

  • memory/2864-30-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2864-34-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2864-36-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB