Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/06/2024, 01:15

General

  • Target
    3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe
  • Size 692KB
  • Sample240615-bmp2yateqf
  • SHA256 3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe
    "C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2016
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yHYZVcCCPt.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4172
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yHYZVcCCPt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp75DC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1432
    • C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe
      "C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe"
      2⤵
        PID:5012
      • C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe
        "C:\Users\Admin\AppData\Local\Temp\3bab8fe003450bf70cd9ec8c2b92d042d92167da4942046f104f6b3139663a96.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1688

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          __PSScriptPolicyTest_ojwjtkm0.jt1.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ojwjtkm0.jt1.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmp75DC.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp75DC.tmp
          • Size 1KB
          • SHA256 9f26b25306e4d1c0c6dd8bf5aad784fb02c3451042ee45c93d2d375230f05638
          • MD5 SHA1 SHA512

          memory/1244-6-0x00000000050B0000-0x00000000050CA000-memory.dmp

          memory/1244-2-0x00000000050D0000-0x0000000005674000-memory.dmp

          memory/1244-5-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/1244-4-0x0000000004CD0000-0x0000000004CDA000-memory.dmp

          memory/1244-3-0x0000000004B20000-0x0000000004BB2000-memory.dmp

          memory/1244-7-0x0000000004E10000-0x0000000004E20000-memory.dmp

          memory/1244-8-0x0000000007750000-0x00000000077D2000-memory.dmp

          memory/1244-9-0x0000000009EB0000-0x0000000009F4C000-memory.dmp

          memory/1244-0-0x00000000753BE000-0x00000000753BF000-memory.dmp

          memory/1244-46-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/1244-1-0x0000000000090000-0x0000000000140000-memory.dmp

          memory/1688-85-0x0000000006A10000-0x0000000006A60000-memory.dmp

          memory/1688-38-0x0000000000400000-0x0000000000440000-memory.dmp

          memory/2016-15-0x0000000005160000-0x0000000005788000-memory.dmp

          memory/2016-17-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/2016-20-0x0000000005900000-0x0000000005966000-memory.dmp

          memory/2016-14-0x0000000002620000-0x0000000002656000-memory.dmp

          memory/2016-83-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/2016-19-0x0000000005890000-0x00000000058F6000-memory.dmp

          memory/2016-79-0x00000000075B0000-0x00000000075CA000-memory.dmp

          memory/2016-49-0x0000000006530000-0x0000000006562000-memory.dmp

          memory/2016-18-0x0000000005080000-0x00000000050A2000-memory.dmp

          memory/2016-16-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/2016-48-0x0000000005FE0000-0x000000000602C000-memory.dmp

          memory/2016-47-0x0000000005F50000-0x0000000005F6E000-memory.dmp

          memory/2016-78-0x00000000074B0000-0x00000000074C4000-memory.dmp

          memory/2016-72-0x0000000007270000-0x000000000728A000-memory.dmp

          memory/2016-74-0x00000000072E0000-0x00000000072EA000-memory.dmp

          memory/2016-50-0x0000000071A80000-0x0000000071ACC000-memory.dmp

          memory/4172-45-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/4172-73-0x0000000007980000-0x0000000007FFA000-memory.dmp

          memory/4172-71-0x00000000071E0000-0x0000000007283000-memory.dmp

          memory/4172-51-0x0000000071A80000-0x0000000071ACC000-memory.dmp

          memory/4172-75-0x00000000075B0000-0x0000000007646000-memory.dmp

          memory/4172-76-0x0000000007530000-0x0000000007541000-memory.dmp

          memory/4172-77-0x0000000007560000-0x000000000756E000-memory.dmp

          memory/4172-70-0x0000000007170000-0x000000000718E000-memory.dmp

          memory/4172-43-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/4172-80-0x0000000007650000-0x0000000007658000-memory.dmp

          memory/4172-84-0x00000000753B0000-0x0000000075B60000-memory.dmp

          memory/4172-23-0x0000000005A20000-0x0000000005D74000-memory.dmp

          memory/4172-22-0x00000000753B0000-0x0000000075B60000-memory.dmp