Analysis

  • max time kernel
    115s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 02:55

General

  • Target
    c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154.exe
  • Size 791KB
  • Sample240612-defjmszann
  • SHA256 c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154
  • 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 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154.exe
    "C:\Users\Admin\AppData\Local\Temp\c3135de6c77cb9f767977797316659bcc043ca15cca999599c92cd0d7f515154.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3696
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HXJRxdSeDm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4280
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HXJRxdSeDm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF01.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2788
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2464
  • 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 --field-trial-handle=4448,i,8998666007764333392,14724298544432336038,262144 --variations-seed-version --mojo-platform-channel-handle=4464 /prefetch:8
    1⤵
      PID:3648

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          __PSScriptPolicyTest_4n3pjz4o.if0.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4n3pjz4o.if0.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmpFF01.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmpFF01.tmp
          • Size 1KB
          • SHA256 d864393cb81178fb0c7c0b2c2c403b7893253a11553398c2a07b382ab7ea3022
          • MD5 SHA1 SHA512

          memory/2464-22-0x0000000000400000-0x0000000000442000-memory.dmp

          memory/2464-40-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/2464-28-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/2464-60-0x0000000006C80000-0x0000000006CD0000-memory.dmp

          memory/2464-67-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/3696-4-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/3696-8-0x00000000068B0000-0x00000000068C0000-memory.dmp

          memory/3696-9-0x0000000006900000-0x0000000006984000-memory.dmp

          memory/3696-10-0x0000000009020000-0x00000000090BC000-memory.dmp

          memory/3696-0-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

          memory/3696-7-0x00000000068A0000-0x00000000068AE000-memory.dmp

          memory/3696-6-0x0000000005700000-0x0000000005716000-memory.dmp

          memory/3696-5-0x00000000052F0000-0x00000000052FA000-memory.dmp

          memory/3696-3-0x0000000005370000-0x0000000005402000-memory.dmp

          memory/3696-2-0x0000000005920000-0x0000000005EC4000-memory.dmp

          memory/3696-27-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/3696-1-0x0000000000830000-0x00000000008FA000-memory.dmp

          memory/4280-15-0x0000000005330000-0x0000000005366000-memory.dmp

          memory/4280-55-0x0000000008220000-0x000000000889A000-memory.dmp

          memory/4280-26-0x0000000006180000-0x00000000064D4000-memory.dmp

          memory/4280-23-0x0000000005FD0000-0x0000000006036000-memory.dmp

          memory/4280-20-0x00000000057D0000-0x00000000057F2000-memory.dmp

          memory/4280-21-0x0000000005880000-0x00000000058E6000-memory.dmp

          memory/4280-38-0x00000000068B0000-0x00000000068CE000-memory.dmp

          memory/4280-19-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/4280-39-0x0000000006DF0000-0x0000000006E3C000-memory.dmp

          memory/4280-41-0x0000000007880000-0x00000000078B2000-memory.dmp

          memory/4280-42-0x00000000712F0000-0x000000007133C000-memory.dmp

          memory/4280-52-0x0000000006E70000-0x0000000006E8E000-memory.dmp

          memory/4280-53-0x0000000007AC0000-0x0000000007B63000-memory.dmp

          memory/4280-25-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/4280-56-0x0000000007BD0000-0x0000000007BEA000-memory.dmp

          memory/4280-57-0x0000000007C50000-0x0000000007C5A000-memory.dmp

          memory/4280-58-0x0000000007E50000-0x0000000007EE6000-memory.dmp

          memory/4280-59-0x0000000007DD0000-0x0000000007DE1000-memory.dmp

          memory/4280-17-0x00000000059A0000-0x0000000005FC8000-memory.dmp

          memory/4280-61-0x0000000007E00000-0x0000000007E0E000-memory.dmp

          memory/4280-62-0x0000000007E10000-0x0000000007E24000-memory.dmp

          memory/4280-63-0x0000000007F10000-0x0000000007F2A000-memory.dmp

          memory/4280-64-0x0000000007EF0000-0x0000000007EF8000-memory.dmp

          memory/4280-66-0x0000000074F60000-0x0000000075710000-memory.dmp

          memory/4280-18-0x0000000074F60000-0x0000000075710000-memory.dmp