Analysis

  • max time kernel
    117s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20250207-en
  • resource tags

    arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
  • submitted
    14-02-2025 16:32

General

  • Target

    2025-02-14_0ba08e83f23bdf195ecb6e0d681715db_ismagent_ryuk_sliver.exe

  • Size

    2.9MB

  • MD5

    0ba08e83f23bdf195ecb6e0d681715db

  • SHA1

    4ffa63849860be780e8b36cb9d02cee5e180b910

  • SHA256

    6a313284fe5ee24afd20fdca09dc1cba93cb4277ee20b331a96162302409f369

  • SHA512

    2e305fc2284bcbde1cd07605f7355091fe2b9869fd33bf00963ae45db055049474bd8fb2f72c27ba58acd459cfe7bbc904a48ad2bd0d2e2992f50dd3e073c4b0

  • SSDEEP

    49152:hyEEFoRjQ86ctQAWrk9k+PhBFB3FFIBoYCIYSMFvf0VQc9pdQPN:hnj36pUk0TkfYiQ/N

Malware Config

Extracted

Family

meshagent

Version

2

Botnet

Sports & Imports

C2

http://98.187.161.247:443/agent.ashx

Attributes
  • mesh_id

    0x5982E46AAA9F472859A5D4B8797C454B63141A8A669BF3C8A5BF92591AAAB614D4942ABE505C5CB9CCA851A5C024E8F6

  • server_id

    9FCE958DB8A0A03D0881F53B35F97C67DA857CA4B2CD1231F92046A2A9727EB27BE1F081E4C9B7AA8AB4D4E455DCC97D

  • wss

    wss://98.187.161.247:443/agent.ashx

Signatures

  • Detects MeshAgent payload 1 IoCs
  • MeshAgent

    MeshAgent is an open source remote access trojan written in C++.

  • Meshagent family
  • Modifies Windows Firewall 2 TTPs 4 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 12 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-14_0ba08e83f23bdf195ecb6e0d681715db_ismagent_ryuk_sliver.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-14_0ba08e83f23bdf195ecb6e0d681715db_ismagent_ryuk_sliver.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\system32\wbem\wmic.exe
      wmic os get oslanguage /FORMAT:LIST
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1944
    • C:\Users\Admin\AppData\Local\Temp\2025-02-14_0ba08e83f23bdf195ecb6e0d681715db_ismagent_ryuk_sliver.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-02-14_0ba08e83f23bdf195ecb6e0d681715db_ismagent_ryuk_sliver.exe" -fullinstall
      2⤵
      • Sets service image path in registry
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        /C "Get-Module -ListAvailable -Name netsecurity"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2956
      • C:\Windows\System32\cmd.exe
        /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {08c9e045-6165-4a99-3b24-4e4a21123bc6}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16990"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2216
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {08c9e045-6165-4a99-3b24-4e4a21123bc6}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16990
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:2688
      • C:\Windows\System32\cmd.exe
        /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {06cbb670-c8c2-4d88-c7aa-a30a9f559c42}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16991"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {06cbb670-c8c2-4d88-c7aa-a30a9f559c42}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16991
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:2668
      • C:\Windows\System32\cmd.exe
        /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {1452961d-52b1-4a95-ab2e-4ee2fcfc6965}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16990"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:852
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {1452961d-52b1-4a95-ab2e-4ee2fcfc6965}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16990
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:2140
      • C:\Windows\System32\cmd.exe
        /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {04afc3c2-e059-4b96-a722-8a341e537334}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16991"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2728
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {04afc3c2-e059-4b96-a722-8a341e537334}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16991
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:1564
  • C:\Program Files\Mesh Agent\MeshAgent.exe
    "C:\Program Files\Mesh Agent\MeshAgent.exe" --installedByUser="S-1-5-21-677481364-2238709445-1347953534-1000"
    1⤵
    • Executes dropped EXE
    • Drops file in Program Files directory
    PID:3032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Program Files\Mesh Agent\MeshAgent.exe

    Filesize

    2.9MB

    MD5

    0ba08e83f23bdf195ecb6e0d681715db

    SHA1

    4ffa63849860be780e8b36cb9d02cee5e180b910

    SHA256

    6a313284fe5ee24afd20fdca09dc1cba93cb4277ee20b331a96162302409f369

    SHA512

    2e305fc2284bcbde1cd07605f7355091fe2b9869fd33bf00963ae45db055049474bd8fb2f72c27ba58acd459cfe7bbc904a48ad2bd0d2e2992f50dd3e073c4b0

  • memory/2956-6-0x000000001B530000-0x000000001B812000-memory.dmp

    Filesize

    2.9MB

  • memory/2956-7-0x0000000002710000-0x0000000002718000-memory.dmp

    Filesize

    32KB