Analysis

  • max time kernel
    1050s
  • max time network
    959s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-06-2024 21:06

General

  • Target

    Server 2.exe

  • Size

    93KB

  • MD5

    ec6bedfc8918668daf892b946d8d8998

  • SHA1

    ee4ef91775da5314e87bda7bd6bdeb6a8479ce0c

  • SHA256

    c661d366b4023b33cbd80de638f69f3784150b1158ea7241bf01ea1f3cdaaf81

  • SHA512

    c1c5829fa03f7b3e4021fec8d051623412e1d7807beb3c144e0e1f148561310289dbb1365ed1e6c031328005e1ae26b15603f90600417ffea14d73a04d384607

  • SSDEEP

    768:8Y3zeZFKghFchQVTqWnwz/1h3XE/blczxXSsvXxrjEtCdnl2pi1Rz4Rk3msGdph3:ne/K6bTq8itNE2VhjEwzGi1dDiDhgS

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 6 IoCs
  • Executes dropped EXE 1 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 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 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 9 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 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server 2.exe
    "C:\Users\Admin\AppData\Local\Temp\Server 2.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Windows\server.exe
      "C:\Windows\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:368
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:3792
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Windows\server.exe"
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:3980
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        PID:4508
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3840,i,17949988676391029604,13756926835471203788,262144 --variations-seed-version --mojo-platform-channel-handle=4428 /prefetch:8
    1⤵
      PID:4408
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4144,i,17949988676391029604,13756926835471203788,262144 --variations-seed-version --mojo-platform-channel-handle=3880 /prefetch:8
      1⤵
        PID:388

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        5B

        MD5

        d43c5b07c128b116b7bc8faf7b8efa9d

        SHA1

        dd3540ad4ae14b21b665d108cf4570c2dfa6a6fa

        SHA256

        80ad1cc7b3a784dad618a445af0c8cf3efa903f82a814756f2aaa7b57f45791f

        SHA512

        618b01e2b808e1954d011635dfdf63bc75855145208fc5cae33ce09c7e5b43cf978f6511beb311765e6920e728a290c9f9ced7563e40e8ff8d093d50fdc18334

      • C:\Windows\server.exe

        Filesize

        93KB

        MD5

        ec6bedfc8918668daf892b946d8d8998

        SHA1

        ee4ef91775da5314e87bda7bd6bdeb6a8479ce0c

        SHA256

        c661d366b4023b33cbd80de638f69f3784150b1158ea7241bf01ea1f3cdaaf81

        SHA512

        c1c5829fa03f7b3e4021fec8d051623412e1d7807beb3c144e0e1f148561310289dbb1365ed1e6c031328005e1ae26b15603f90600417ffea14d73a04d384607

      • memory/368-13-0x0000000075420000-0x00000000759D1000-memory.dmp

        Filesize

        5.7MB

      • memory/368-15-0x0000000075420000-0x00000000759D1000-memory.dmp

        Filesize

        5.7MB

      • memory/368-53-0x0000000075420000-0x00000000759D1000-memory.dmp

        Filesize

        5.7MB

      • memory/404-0-0x0000000075422000-0x0000000075423000-memory.dmp

        Filesize

        4KB

      • memory/404-1-0x0000000075420000-0x00000000759D1000-memory.dmp

        Filesize

        5.7MB

      • memory/404-2-0x0000000075420000-0x00000000759D1000-memory.dmp

        Filesize

        5.7MB

      • memory/404-14-0x0000000075420000-0x00000000759D1000-memory.dmp

        Filesize

        5.7MB