Overview

overview

7

Static

static

1

SecuriteIn...45.exe

windows7-x64

7

SecuriteIn...45.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    61s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/11/2022, 20:03

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General

  • Target
    SecuriteInfo.com.Trojan.DownLoader39.62327.3255.19645.exe
  • Size 302KB
  • Sample221101-ysn36afebk
  • SHA256 932694b1d0a75e54084e271e67c1bf8fd87aa889bf5d8137bb16cfa6f87b4f14
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
persistence

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader39.62327.3255.19645.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader39.62327.3255.19645.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader39.62327.3255.19645.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1784
        3⤵
        • Drops file in Windows directory
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4508

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsg9909.tmp\System.dll
        • Size 10KB
        • SHA256 bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsg9909.tmp\System.dll
        • Size 10KB
        • SHA256 bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/5024-135-0x0000000074AD0000-0x0000000075081000-memory.dmp
        Download

        memory/5024-137-0x0000000074AD0000-0x0000000075081000-memory.dmp
        Download