Analysis

  • max time kernel
    143s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/03/2023, 21:53

General

  • Target
    IP copy.pdf.exe
  • Size 1.2MB
  • Sample230303-1rl9aaba5t
  • SHA256 60d1370a6be9757d7c17dde38c1b092d70fa3bfc4d26a2f9548b095a2c714fb7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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). Likely ransomware behaviour.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IP copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\IP copy.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1116
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KrAvjTiceRzAD.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4084
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KrAvjTiceRzAD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3E70.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4392
    • C:\Users\Admin\AppData\Local\Temp\IP copy.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\IP copy.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2040

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        IP copy.pdf.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\IP copy.pdf.exe.log
        • Size 1KB
        • SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_lifal51r.hvo.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lifal51r.hvo.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmp3E70.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmp3E70.tmp
        • Size 1KB
        • SHA256 c60d73311f1a8d6ba5dcdd7b4fb7b92f486e1543e013bcae4d2acf9308e8559f
        • MD5 SHA1 SHA512

        memory/1116-139-0x0000000006240000-0x00000000062DC000-memory.dmp

        memory/1116-137-0x0000000001210000-0x0000000001220000-memory.dmp

        memory/1116-138-0x0000000001210000-0x0000000001220000-memory.dmp

        memory/1116-136-0x0000000005290000-0x000000000529A000-memory.dmp

        memory/1116-135-0x0000000005300000-0x0000000005392000-memory.dmp

        memory/1116-133-0x00000000007A0000-0x00000000008D4000-memory.dmp

        memory/1116-134-0x0000000005810000-0x0000000005DB4000-memory.dmp

        memory/2040-191-0x0000000005240000-0x0000000005250000-memory.dmp

        memory/2040-185-0x0000000007140000-0x0000000007302000-memory.dmp

        memory/2040-149-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/2040-184-0x0000000006E30000-0x0000000006E80000-memory.dmp

        memory/2040-165-0x0000000005240000-0x0000000005250000-memory.dmp

        memory/4084-145-0x0000000002C10000-0x0000000002C46000-memory.dmp

        memory/4084-179-0x000000007FC00000-0x000000007FC10000-memory.dmp

        memory/4084-159-0x0000000005EB0000-0x0000000005F16000-memory.dmp

        memory/4084-164-0x00000000064F0000-0x000000000650E000-memory.dmp

        memory/4084-152-0x0000000005630000-0x0000000005652000-memory.dmp

        memory/4084-166-0x0000000006A90000-0x0000000006AC2000-memory.dmp

        memory/4084-167-0x0000000070970000-0x00000000709BC000-memory.dmp

        memory/4084-177-0x0000000006A70000-0x0000000006A8E000-memory.dmp

        memory/4084-178-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

        memory/4084-153-0x0000000005D90000-0x0000000005DF6000-memory.dmp

        memory/4084-180-0x0000000007E30000-0x00000000084AA000-memory.dmp

        memory/4084-181-0x00000000077F0000-0x000000000780A000-memory.dmp

        memory/4084-182-0x0000000007860000-0x000000000786A000-memory.dmp

        memory/4084-183-0x0000000007A70000-0x0000000007B06000-memory.dmp

        memory/4084-148-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

        memory/4084-147-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

        memory/4084-186-0x0000000007A20000-0x0000000007A2E000-memory.dmp

        memory/4084-187-0x0000000007B30000-0x0000000007B4A000-memory.dmp

        memory/4084-188-0x0000000007B10000-0x0000000007B18000-memory.dmp

        memory/4084-146-0x0000000005670000-0x0000000005C98000-memory.dmp