Analysis

  • max time kernel
    39s
  • max time network
    48s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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
  • Windows security bypass 2 TTPs 2 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Windows security modification 2 TTPs 3 IoCs
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 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
    • Windows security bypass
    • Checks computer location settings
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4304
    • 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:4164
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
      2⤵
        PID:4344
      • 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:3060
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
        2⤵
          PID:4128

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ixvorjne.xas.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/3060-16-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/3060-28-0x0000000006980000-0x000000000698A000-memory.dmp

        Filesize

        40KB

      • memory/3060-27-0x00000000069D0000-0x0000000006A62000-memory.dmp

        Filesize

        584KB

      • memory/3060-26-0x0000000006890000-0x000000000692C000-memory.dmp

        Filesize

        624KB

      • memory/3060-25-0x00000000067A0000-0x00000000067F0000-memory.dmp

        Filesize

        320KB

      • memory/3060-21-0x0000000004FB0000-0x0000000005016000-memory.dmp

        Filesize

        408KB

      • memory/3060-20-0x00000000053F0000-0x0000000005994000-memory.dmp

        Filesize

        5.6MB

      • memory/4164-4-0x00007FFD32730000-0x00007FFD331F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4164-15-0x000001F9B77A0000-0x000001F9B77C2000-memory.dmp

        Filesize

        136KB

      • memory/4164-19-0x00007FFD32730000-0x00007FFD331F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4164-5-0x00007FFD32730000-0x00007FFD331F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4304-22-0x00007FFD32730000-0x00007FFD331F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4304-0-0x00000173C5740000-0x00000173C57E2000-memory.dmp

        Filesize

        648KB

      • memory/4304-3-0x00007FFD32730000-0x00007FFD331F1000-memory.dmp

        Filesize

        10.8MB

      • memory/4304-2-0x00000173DFC50000-0x00000173DFCE6000-memory.dmp

        Filesize

        600KB

      • memory/4304-1-0x00007FFD32733000-0x00007FFD32735000-memory.dmp

        Filesize

        8KB