Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250314-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    29/03/2025, 09:14

General

  • Target

    Remcos Professional Cracked By Alcatraz3222.exe

  • Size

    17.7MB

  • MD5

    efc159c7cf75545997f8c6af52d3e802

  • SHA1

    b85bd368c91a13db1c5de2326deb25ad666c24c1

  • SHA256

    898ac001d0f6c52c1001c640d9860287fdf30a648d580e9f5dd15e2ef84ab18e

  • SHA512

    d06a432233dceb731defd53238971699fef201d0f9144ee50e5dd7d6620dfdd6c298d52618bf2c9feb0519574f4565fb0177b00fd8292768fbd8b85dd11e650d

  • SSDEEP

    393216:GYuGvp8EHb+in8f4Zg41+Q4AXf5ZZcyfHDMxVpSc+q+eOFxdx:3mqSi8fN4sAXfrZcyfo7p0eYHx

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

dllsys.duckdns.org:3202

Mutex

3b570ffeeb3d34249b9a5ce0ee58a328

Attributes
  • reg_key

    3b570ffeeb3d34249b9a5ce0ee58a328

  • splitter

    svchost

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 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 7 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Remcos Professional Cracked By Alcatraz3222.exe
    "C:\Users\Admin\AppData\Local\Temp\Remcos Professional Cracked By Alcatraz3222.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5784
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/Remcos Professional Cracked By Alcatraz3222.exe" "%temp%\Profile Remcos\Update_Lock_Remcos.exe" /Y
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3116
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "%temp%\Profile Remcos\Update_Lock_Remcos.exe.lnk" /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4904
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\Profile Remcos\Update_Lock_Remcos.exe.lnk" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4876
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\Profile Remcos\Update_Lock_Remcos.exe:Zone.Identifier
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4940
    • C:\Users\Admin\AppData\Local\Temp\taskhost.exe
      "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5048
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\taskhost.exe" "taskhost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\taskhost.exe

    Filesize

    256KB

    MD5

    8fdf47e0ff70c40ed3a17014aeea4232

    SHA1

    e6256a0159688f0560b015da4d967f41cbf8c9bd

    SHA256

    ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82

    SHA512

    bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be

  • memory/5048-16-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB

  • memory/5048-15-0x0000000005850000-0x00000000058E2000-memory.dmp

    Filesize

    584KB

  • memory/5048-21-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB

  • memory/5048-18-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB

  • memory/5048-7-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/5048-17-0x0000000005820000-0x000000000582A000-memory.dmp

    Filesize

    40KB

  • memory/5048-9-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB

  • memory/5048-12-0x0000000005C70000-0x0000000006216000-memory.dmp

    Filesize

    5.6MB

  • memory/5784-13-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/5784-14-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB

  • memory/5784-2-0x0000000005C40000-0x0000000005CDC000-memory.dmp

    Filesize

    624KB

  • memory/5784-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/5784-1-0x0000000000100000-0x00000000012AE000-memory.dmp

    Filesize

    17.7MB

  • memory/5784-4-0x000000000D3C0000-0x000000000E542000-memory.dmp

    Filesize

    17.5MB

  • memory/5784-20-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB

  • memory/5784-3-0x00000000750C0000-0x0000000075871000-memory.dmp

    Filesize

    7.7MB