Overview

overview

10

Static

static

10

Server.exe

windows10-ltsc 2021-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    105s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    25-10-2024 12:56

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General

  • Target

    Server.exe

  • Size

    93KB

  • MD5

    84cc7227d21f9c65cae6e4451f18483d

  • SHA1

    504dff55fb25343ec964f740ecaba9d7d490fde3

  • SHA256

    4a41991bfc4cdd9dcec82592963bb61f62eb3075a53273bb018dc650eec49350

  • SHA512

    db834a4009a979c17f6759597fe0f86bcccb4c726c7f7c2518d57de1ca6ee95199e6dd2a96737cb93c64b3304ae5f39318b7d0349a9c74b6606934f22adfec65

  • SSDEEP

    768:uY32ub30YTXspgM0m2zGjpyDtdXWuhtXfLWhyXxrjEtCdnl2pi1Rz4Rk3ysGdpW3:YuT0AA0mT1mrWGL5jEwzGi1dDuDWgS

Score
8/10
discoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

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

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 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.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

    discovery
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    "C:\Users\Admin\AppData\Local\Temp\Server.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\ProgramData\server.exe
      "C:\ProgramData\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:1280
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3248
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      PID:2644
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\FransescoPast.txt
      1⤵
      • Opens file in notepad (likely ransom note)
      PID:2960
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      1⤵
      • System Location Discovery: System Language Discovery
      PID:4532

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\server.exe
      Filesize

      93KB

      MD5

      84cc7227d21f9c65cae6e4451f18483d

      SHA1

      504dff55fb25343ec964f740ecaba9d7d490fde3

      SHA256

      4a41991bfc4cdd9dcec82592963bb61f62eb3075a53273bb018dc650eec49350

      SHA512

      db834a4009a979c17f6759597fe0f86bcccb4c726c7f7c2518d57de1ca6ee95199e6dd2a96737cb93c64b3304ae5f39318b7d0349a9c74b6606934f22adfec65

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\server.exe.log
      Filesize

      408B

      MD5

      11c924dd7e95b6c1243d3dc6a6cda57d

      SHA1

      dc5becbb4ba7c94037c13de7163b541f4dfe0b7b

      SHA256

      18ebe71e164d362b1c0464dda0cb3269b2940c40abd588bde37d92c81263ba52

      SHA512

      dd021f43ce21d1fb35119fa9303b09281365ca676b6e944de844b397dd407cee9b17b740220bb09d024ffb6e1acf45d4c41ea4101e6cb011f7a1fa9cbf8e2432

      Download Submit

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

      5B

      MD5

      cac4598fdc0f92181616d12833eb6ca1

      SHA1

      80a7b7a46a0e8e674b782b9eb569e5430a69c84b

      SHA256

      275918973c23ad700f278c69cc03c9c82ec9f4d9ed0f53111ad22bec197ff440

      SHA512

      01a7556bfcce6d9d8251aadc7f6e6169fdd0477d487ce88729c44bfe8b85b2eee500985d553c0479765ef5b5c6dc3517c0305efb9089814c3f8a9ea6fc51c713

      Download Submit

    • memory/2792-0-0x0000000074A52000-0x0000000074A53000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2792-1-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/2792-2-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/2792-17-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/3340-18-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/3340-19-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/3340-22-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/3340-24-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/3340-23-0x0000000074A50000-0x0000000075001000-memory.dmp

      Filesize

      5.7MB

      Download