Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 02:07

General

  • Target

    5fcf51d8f789ac7b52a3a3c8a134663483710fcde461ed101e87708282b673fb.exe

  • Size

    639KB

  • MD5

    fa20ff9c5380516b8755de1b2ab0b15e

  • SHA1

    3ebbea075575853586c51f27e642c79a0b148e87

  • SHA256

    5fcf51d8f789ac7b52a3a3c8a134663483710fcde461ed101e87708282b673fb

  • SHA512

    8fda98c8d33586f2753cb072ddadb0ed7ea83c9e1139c51d348896b164bc7d8f60f25499fd07b8b72b30eb1f0681672571bb734aebd4fad7bf7314159632849a

  • SSDEEP

    12288:wp3W8nlD63T8RxdBEmARYNMZgx0+uk87cIxbeJm5h/+wCpb3/Tpqzuv+ENLn0:wRW8VBpDARYqZ20+ur7hKm5J+Dp/Fku2

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • UAC bypass 3 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fcf51d8f789ac7b52a3a3c8a134663483710fcde461ed101e87708282b673fb.exe
    "C:\Users\Admin\AppData\Local\Temp\5fcf51d8f789ac7b52a3a3c8a134663483710fcde461ed101e87708282b673fb.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1684
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5fcf51d8f789ac7b52a3a3c8a134663483710fcde461ed101e87708282b673fb.exe" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2928
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2576
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1684 -s 772
      2⤵
        PID:2704

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1684-0-0x000007FEF5953000-0x000007FEF5954000-memory.dmp

      Filesize

      4KB

    • memory/1684-1-0x0000000000930000-0x00000000009D2000-memory.dmp

      Filesize

      648KB

    • memory/1684-2-0x0000000002100000-0x0000000002196000-memory.dmp

      Filesize

      600KB

    • memory/1684-3-0x000007FEF5950000-0x000007FEF633C000-memory.dmp

      Filesize

      9.9MB

    • memory/1684-27-0x000007FEF5950000-0x000007FEF633C000-memory.dmp

      Filesize

      9.9MB

    • memory/1684-26-0x000007FEF5953000-0x000007FEF5954000-memory.dmp

      Filesize

      4KB

    • memory/2576-11-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2576-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2576-13-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2576-8-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2576-17-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2576-6-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2576-15-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2576-4-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2928-22-0x000000001B640000-0x000000001B922000-memory.dmp

      Filesize

      2.9MB

    • memory/2928-23-0x00000000029E0000-0x00000000029E8000-memory.dmp

      Filesize

      32KB