Overview

overview

10

Static

static

10

VenomServer.exe

windows10-ltsc 2021-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250113-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    15-01-2025 01:22

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General

  • Target

    VenomServer.exe

  • Size

    93KB

  • MD5

    2f730ef80818f9cc2e2a592badc24d2b

  • SHA1

    d5d4d56727eb252067f4e67aa6658a2ba461a919

  • SHA256

    727785cc92095e9d516041ac06b779e5beb08cd5b9f62716ac68651b673862ad

  • SHA512

    ae8bbc90038e1cbc0eda7181fc190c7f87baedcb5f522d93309774b60b7d82a743896c3bd628badd3c851a80811c1dc278de3a9111a48995ea976b817c4e63e7

  • SSDEEP

    1536:3VwC+xhUa9urgOBPRNvM4jEwzGi1dDwDzgS:3VmUa9urgObdGi1des

Score
8/10
discoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

  • Disables Task Manager via registry modification
    evasion
  • Modifies Windows Firewall 2 TTPs 3 IoCs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops autorun.inf file 1 TTPs 4 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • 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.

    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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VenomServer.exe
    "C:\Users\Admin\AppData\Local\Temp\VenomServer.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:392
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Drops autorun.inf file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:272
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4256
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\server.exe
    Filesize

    93KB

    MD5

    2f730ef80818f9cc2e2a592badc24d2b

    SHA1

    d5d4d56727eb252067f4e67aa6658a2ba461a919

    SHA256

    727785cc92095e9d516041ac06b779e5beb08cd5b9f62716ac68651b673862ad

    SHA512

    ae8bbc90038e1cbc0eda7181fc190c7f87baedcb5f522d93309774b60b7d82a743896c3bd628badd3c851a80811c1dc278de3a9111a48995ea976b817c4e63e7

    Download Submit

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

    5B

    MD5

    aa3cce4f6c83d5adfcfc45934b274cc6

    SHA1

    20e102f0ad9f95951786af279e5215d2ecf85126

    SHA256

    57a8ff317e913b7e08c0a1758997ed0ffc2f1aba0a3b3310c7697bc207fd15e5

    SHA512

    f9ec7cd14188f6f7cc00d64dfd7781fc425b7dd24d8fa70d9382cd127bbcc657c734812bc50ba0761393b1a89de9dc02f0d90e8377d6387f24e2d36c98d185cf

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  • memory/392-0-0x0000000074F02000-0x0000000074F03000-memory.dmp

    Filesize

    4KB

    Download

  • memory/392-1-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/392-2-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/392-17-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1708-16-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1708-25-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1708-24-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1708-26-0x0000000074F00000-0x00000000754B1000-memory.dmp

    Filesize

    5.7MB

    Download