Resubmissions

14-01-2025 07:12

250114-h1qnys1kcy 10

14-01-2025 06:19

250114-g26acsyrez 10

04-08-2022 21:27

220804-1aqkdacbdq 10

Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-01-2025 07:12

General

  • Target

    DangerousPayload.exe

  • Size

    37KB

  • MD5

    9bbb2f1dc80afe6ecf27b31794a02d32

  • SHA1

    bac66f84175fe186c478a340c2f31fde5f57d980

  • SHA256

    7aa11361505f0ea1e8bf02e1529a5104f8186da3d52f26409281f6d4783bc77f

  • SHA512

    341ff7add58a74c3aef78340e6c44ae05b8c8b0ba16c0d3d20a668f2923550faee171563bc8541ff0ef956002609bdda4337a484d470fca6528237bc170aac3e

  • SSDEEP

    384:Ga5siDlT95hL5YyUvjh/xOi4aaF3ArAF+rMRTyN/0L+EcoinblneHQM3epzXGNrt:DHv5zUvjhDlaRArM+rMRa8NuM1t

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 5 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 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.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DangerousPayload.exe
    C:\Users\Admin\AppData\Local\Temp\DangerousPayload.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Users\Admin\server.exe
      "C:\Users\Admin\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • 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:4376
      • 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:2128
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM System32.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\server.exe

    Filesize

    37KB

    MD5

    9bbb2f1dc80afe6ecf27b31794a02d32

    SHA1

    bac66f84175fe186c478a340c2f31fde5f57d980

    SHA256

    7aa11361505f0ea1e8bf02e1529a5104f8186da3d52f26409281f6d4783bc77f

    SHA512

    341ff7add58a74c3aef78340e6c44ae05b8c8b0ba16c0d3d20a668f2923550faee171563bc8541ff0ef956002609bdda4337a484d470fca6528237bc170aac3e

  • memory/4376-21-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4376-23-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4376-33-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4376-34-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4376-35-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4512-0-0x0000000074F42000-0x0000000074F43000-memory.dmp

    Filesize

    4KB

  • memory/4512-1-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4512-2-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB

  • memory/4512-22-0x0000000074F40000-0x00000000754F1000-memory.dmp

    Filesize

    5.7MB