Analysis

  • max time kernel
    134s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 11:24

General

  • Target
    Financial Invoice Report - STI ME-3051-2024.exe
  • Size 687KB
  • Sample240604-nhpxlafa35
  • SHA256 6f4fe5f02ccbea743f38c50e8876c145db647247654ee55031e42682fa8ef6da
  • 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.

  • Looks up external IP address via web service 2 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Financial Invoice Report - STI ME-3051-2024.exe
    "C:\Users\Admin\AppData\Local\Temp\Financial Invoice Report - STI ME-3051-2024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3008
    • 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\Financial Invoice Report - STI ME-3051-2024.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1724
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TdbuEaJPu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:988
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TdbuEaJPu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp21FA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4304
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1664
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4328,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4368 /prefetch:8
    1⤵
      PID:2080

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 18KB
          • SHA256 a922e9e99c204ec11174e67d2d7273e8530e0b1292568482144101de54136e55
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_zcilvtyg.25r.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zcilvtyg.25r.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmp21FA.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp21FA.tmp
          • Size 1KB
          • SHA256 5a88a1b0cae4bfcad85d7a9c1ad900596b572a8dc24831d3fef13c895ad40570
          • MD5 SHA1 SHA512

          memory/988-77-0x00000000072B0000-0x0000000007346000-memory.dmp

          memory/988-79-0x0000000007260000-0x000000000726E000-memory.dmp

          memory/988-81-0x0000000007370000-0x000000000738A000-memory.dmp

          memory/988-76-0x00000000070A0000-0x00000000070AA000-memory.dmp

          memory/988-73-0x0000000006D00000-0x0000000006DA3000-memory.dmp

          memory/988-53-0x0000000070290000-0x00000000702DC000-memory.dmp

          memory/988-46-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/988-26-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/988-89-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/988-24-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/1664-45-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/1664-90-0x0000000006470000-0x00000000064C0000-memory.dmp

          memory/1724-88-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/1724-18-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/1724-17-0x0000000005530000-0x0000000005B58000-memory.dmp

          memory/1724-25-0x0000000005B60000-0x0000000005EB4000-memory.dmp

          memory/1724-16-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/1724-15-0x0000000002880000-0x00000000028B6000-memory.dmp

          memory/1724-22-0x0000000005400000-0x0000000005466000-memory.dmp

          memory/1724-20-0x00000000051F0000-0x0000000005212000-memory.dmp

          memory/1724-78-0x00000000076E0000-0x00000000076F1000-memory.dmp

          memory/1724-21-0x0000000005390000-0x00000000053F6000-memory.dmp

          memory/1724-82-0x0000000007800000-0x0000000007808000-memory.dmp

          memory/1724-50-0x0000000006710000-0x000000000675C000-memory.dmp

          memory/1724-48-0x0000000006180000-0x000000000619E000-memory.dmp

          memory/1724-68-0x0000000007160000-0x000000000717E000-memory.dmp

          memory/1724-80-0x0000000007720000-0x0000000007734000-memory.dmp

          memory/1724-19-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/1724-52-0x0000000070290000-0x00000000702DC000-memory.dmp

          memory/1724-51-0x00000000071A0000-0x00000000071D2000-memory.dmp

          memory/1724-75-0x00000000074E0000-0x00000000074FA000-memory.dmp

          memory/1724-74-0x0000000007B30000-0x00000000081AA000-memory.dmp

          memory/3008-7-0x0000000005EE0000-0x0000000005EEE000-memory.dmp

          memory/3008-6-0x0000000005EB0000-0x0000000005EC6000-memory.dmp

          memory/3008-8-0x0000000006100000-0x0000000006110000-memory.dmp

          memory/3008-5-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/3008-9-0x0000000006D60000-0x0000000006DE2000-memory.dmp

          memory/3008-4-0x0000000005A50000-0x0000000005A5A000-memory.dmp

          memory/3008-49-0x0000000074D20000-0x00000000754D0000-memory.dmp

          memory/3008-3-0x0000000005A80000-0x0000000005B12000-memory.dmp

          memory/3008-2-0x0000000006130000-0x00000000066D4000-memory.dmp

          memory/3008-10-0x000000000AB00000-0x000000000AB9C000-memory.dmp

          memory/3008-1-0x0000000000FE0000-0x0000000001092000-memory.dmp

          memory/3008-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp