Overview

overview

10

Static

static

10

Umbrella.flv.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    40s
  • max time network
    35s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2025 17:15

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General

  • Target

    Umbrella.flv.exe

  • Size

    93KB

  • MD5

    e0c869b42c00f9a6f37200c870e410af

  • SHA1

    e8533ba02dff440c2ed561d012a5f7db931dbe63

  • SHA256

    5c854b85f62ea27660d8a371bd085771d17812e21ac1066a80f176dd5ee6e791

  • SHA512

    6f14952004d9df8d5b6c79b2afd669b4b75851ff72ddff49f5b8ebba5fc04a64716dcd77761a863bc3dfb1bcef00591b7431056774efd72c296fe29fcd3fce43

  • SSDEEP

    1536:GyIQIBlfGQFk2ZonmzlMxjEwzGi1dDhDIgS:GyOtFk2ZonmZMOi1dFx

Score
8/10
discoveryevasionpersistenceprivilege_escalation

Malware Config

Signatures

  • 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.

  • Drops startup file 4 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.

  • 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 9 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Umbrella.flv.exe
    "C:\Users\Admin\AppData\Local\Temp\Umbrella.flv.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3116
    • C:\Users\Admin\server.exe
      "C:\Users\Admin\server.exe"
      2⤵
      • Drops startup file
      • 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:2700
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4968
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall delete allowedprogram "C:\Users\Admin\server.exe"
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2448
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\server.exe" "server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:1852

Network

MITRE ATT&CK Enterprise v15

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Downloads

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

    5B

    MD5

    24e9e7d7eea4de90c8fc67ae1145abf2

    SHA1

    dd9bb46ccc6340ca892cf17ebe32b9bdbadee2d1

    SHA256

    bd6c1d15579254e8879ada07376f93cb2e959f45670374892fde2efaf4194f6c

    SHA512

    5572afd61c7ba666515a987f23ad0a05ab753bdc28cfa492adb30200207427a4a38699d3b7981e0750414775a4ce72a209511951d38a8673c709b08774fca01f

    Download Submit

  • C:\Users\Admin\server.exe
    Filesize

    93KB

    MD5

    e0c869b42c00f9a6f37200c870e410af

    SHA1

    e8533ba02dff440c2ed561d012a5f7db931dbe63

    SHA256

    5c854b85f62ea27660d8a371bd085771d17812e21ac1066a80f176dd5ee6e791

    SHA512

    6f14952004d9df8d5b6c79b2afd669b4b75851ff72ddff49f5b8ebba5fc04a64716dcd77761a863bc3dfb1bcef00591b7431056774efd72c296fe29fcd3fce43

    Download Submit

  • memory/2700-24-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2700-23-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2700-44-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3116-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3116-1-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3116-2-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/3116-22-0x0000000074EA0000-0x0000000075451000-memory.dmp

    Filesize

    5.7MB

    Download