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Analysis

  • max time kernel
    45s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2024, 08:24

General

  • Target

    1d34e2601766e0950cbd90e75e70306b475489e31c8cc2bee00c70b887e4ae15.exe

  • Size

    93KB

  • MD5

    f7f745caed820795ba80e629ba4bbbca

  • SHA1

    3af0797e467d67dd5ffc45c8954afd468989d84b

  • SHA256

    1d34e2601766e0950cbd90e75e70306b475489e31c8cc2bee00c70b887e4ae15

  • SHA512

    b8b2cbe7a7d7ffb7f6a66972dd73c24302455d7dc7a63d11cb4cdf2980ebea0efbea32343a3167b9f727f86a4fee6188fc71f427a21665978bfec8fbcb6907dd

  • SSDEEP

    1536:s4UpR8lZc+/2HK1j+fTd5jEwzGi1dDWD5gS4:s4UpKc+/2HK1oTdWi1dQ2p

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

78.156.229.8:7777

Mutex

31a76954e6446acb903929bf0d0d71d9

Attributes
  • reg_key

    31a76954e6446acb903929bf0d0d71d9

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Disables Task Manager via registry modification
  • Modifies Windows Firewall 2 TTPs 9 IoCs
  • Drops startup file 8 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 12 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 27 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 16 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1d34e2601766e0950cbd90e75e70306b475489e31c8cc2bee00c70b887e4ae15.exe
    "C:\Users\Admin\AppData\Local\Temp\1d34e2601766e0950cbd90e75e70306b475489e31c8cc2bee00c70b887e4ae15.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Users\Admin\AppData\Roaming\server.exe
      "C:\Users\Admin\AppData\Roaming\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops autorun.inf file
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2804
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe"
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:832
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:1632
      • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2316
        • C:\Users\Admin\AppData\Roaming\server.exe
          "C:\Users\Admin\AppData\Roaming\server.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2872
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:2000
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe"
            5⤵
            • Modifies Windows Firewall
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:2432
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:1204
          • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2220
            • C:\Users\Admin\AppData\Roaming\server.exe
              "C:\Users\Admin\AppData\Roaming\server.exe"
              6⤵
              • Drops startup file
              • Executes dropped EXE
              • Loads dropped DLL
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2460
              • C:\Windows\SysWOW64\netsh.exe
                netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
                7⤵
                • Modifies Windows Firewall
                • Event Triggered Execution: Netsh Helper DLL
                • System Location Discovery: System Language Discovery
                PID:1284
              • C:\Windows\SysWOW64\netsh.exe
                netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe"
                7⤵
                • Modifies Windows Firewall
                • Event Triggered Execution: Netsh Helper DLL
                • System Location Discovery: System Language Discovery
                PID:1028
              • C:\Windows\SysWOW64\netsh.exe
                netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
                7⤵
                • Modifies Windows Firewall
                • Event Triggered Execution: Netsh Helper DLL
                • System Location Discovery: System Language Discovery
                PID:2008
              • C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\svchost.exe"
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:1032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\melt.txt

    Filesize

    41B

    MD5

    964ddaa3491c746b5ef7e7fb6b653384

    SHA1

    1bb95b5f8f514d2840cf399812631f2838979452

    SHA256

    157eee8b1b5ad0c0beac03f59dc40c5326eae961d495cde8deb3625537810adb

    SHA512

    a06d3735cc7e5c707b52082a061eeb0fd2298c7bdc9ff476de1d0062ae716a6ed757d3aba6e7f36d76dbe0e69349c6bef7e3f840c0516500ddd0bf0d90497752

  • C:\Users\Admin\AppData\Roaming\app

    Filesize

    5B

    MD5

    c2844bc9e1bd64168a727b0680ae4d90

    SHA1

    7bb263540de557f5a4e09c6c78b7dbb314a0df9a

    SHA256

    9c9701ab918368b615fc6a0dbeb5efa286a232d751982ae70b48ad6914bf01e5

    SHA512

    360953bb20d91539022fcb1becf4638970c4452816797a8dca65e3ae4a542302e6e89f0828087caaa63a0750aa78605f8034da7c8663fa4fc677c8f3e53655ed

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

    Filesize

    93KB

    MD5

    f7f745caed820795ba80e629ba4bbbca

    SHA1

    3af0797e467d67dd5ffc45c8954afd468989d84b

    SHA256

    1d34e2601766e0950cbd90e75e70306b475489e31c8cc2bee00c70b887e4ae15

    SHA512

    b8b2cbe7a7d7ffb7f6a66972dd73c24302455d7dc7a63d11cb4cdf2980ebea0efbea32343a3167b9f727f86a4fee6188fc71f427a21665978bfec8fbcb6907dd

  • memory/2536-1-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2536-2-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2536-14-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2536-0-0x0000000074C51000-0x0000000074C52000-memory.dmp

    Filesize

    4KB

  • memory/2880-16-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-17-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-31-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-32-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-53-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-15-0x0000000074C50000-0x00000000751FB000-memory.dmp

    Filesize

    5.7MB