Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 01:56

General

  • Target

    93301c95ffaf697334e0f094beaa5d0a99d8ad20fd8f38f418ab33185ab78728N.exe

  • Size

    8.7MB

  • MD5

    98d0e27e3b5a7fbc5095a83ad0b7fa90

  • SHA1

    f7bb5500e03a1ed7555ffc4a84916edd76d78533

  • SHA256

    93301c95ffaf697334e0f094beaa5d0a99d8ad20fd8f38f418ab33185ab78728

  • SHA512

    15c446c7426ea1d06d16eaf0853df6d9b3f267e6e30fd837ff29f4501abf4e70014f8fed2c8c42c0f40bcf34183bdc7e7e995983ab43d125351545fcc9348580

  • SSDEEP

    196608:hCbGPZmVfjsCbGPZmVfjiCbGPZmVfjsCbGPZmVfj2CbGPZmVfjsCbGPZmVfjiCb1:0GmVNGmVrGmVNGmVnGmVNGmVrGmVNGmh

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

jjj

C2

youri.mooo.com:1605

Mutex

e936a10f968ac948cd351c9629dbd36d

Attributes
  • reg_key

    e936a10f968ac948cd351c9629dbd36d

  • splitter

    |'|'|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 4 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • 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 27 IoCs

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

  • NTFS ADS 4 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 19 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\93301c95ffaf697334e0f094beaa5d0a99d8ad20fd8f38f418ab33185ab78728N.exe
    "C:\Users\Admin\AppData\Local\Temp\93301c95ffaf697334e0f094beaa5d0a99d8ad20fd8f38f418ab33185ab78728N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Subvert Trust Controls: Mark-of-the-Web Bypass
    • System Location Discovery: System Language Discovery
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c start C:\PROGRA~3\93301C~1.TXT
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\SysWOW64\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\PROGRA~3\93301c95ffaf697334e0f094beaa5d0a99d8ad20fd8f38f418ab33185ab78728N.exe.txt
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2532
    • C:\ProgramData\winmgr107.exe
      C:\ProgramData\winmgr107.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        0
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2924
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:2712
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2720
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2452
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3032
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2916
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:840
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3060
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:316
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2556
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2088
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2240
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1104
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1048
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2576
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:956
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1652
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1764
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2460
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2640
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr107.exe" /tr "C:\ProgramData\winmgr107.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2660
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {8DF047CA-A53B-4554-B6DF-10A5D5299584} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1900
    • C:\ProgramData\winmgr107.exe
      C:\ProgramData\winmgr107.exe
      2⤵
      • Executes dropped EXE
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      PID:844
    • C:\ProgramData\winmgr107.exe
      C:\ProgramData\winmgr107.exe
      2⤵
      • Executes dropped EXE
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      PID:1688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~3\93301c95ffaf697334e0f094beaa5d0a99d8ad20fd8f38f418ab33185ab78728N.exe.txt

    Filesize

    992B

    MD5

    c8cf7247d4cfc99a7582a42d13df4c08

    SHA1

    317f5588af0b3b6374c436fb00084c522fd78a83

    SHA256

    78bd99781e971622f1573bccf2ae9cdd7a7498cf81c1875afc65913e1083b1d0

    SHA512

    5dd86b7ba388e5d2ad61b1c69589f42c36eec23a04b3cece0941133e0cf0e8a6f1f3aa2242d87af72db725b4b96032dadae72b3be98af3cfce5786ad8c08c357

  • \ProgramData\winmgr107.exe

    Filesize

    8.7MB

    MD5

    4d0912071281685e821a3e30729214f5

    SHA1

    c93b289590288303e0490c93e6ea85d15857e849

    SHA256

    9034daf18f70b2e0234675fb7c0784b2c1f7ff8a2cba352ca7805b64fe90cf0d

    SHA512

    d97ecc56aaa07c54a9f474b635d22e2f7a0f156157c3ba837989629f6419a616efb52391bd7129b18154c0c31790a056c991480d26cece77ea85a225bb325fe9

  • memory/2924-23-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2924-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2924-26-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2924-28-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2924-27-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB