Analysis

  • max time kernel
    90s
  • 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
    19/05/2023, 00:58

General

  • Target
    QUOTATION.exe
  • Size 853KB
  • Sample230519-bbgw7adc2s
  • SHA256 08039866a2ef35ccfcaa62c6bb85a765d1bb557269bd2a076f469dd3073f43e0
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RxyyZFwC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE227.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1188
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1280

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmpE227.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpE227.tmp
        • Size 1KB
        • SHA256 97e6cec177e7d0254c622453ac38dd21743830f3efb8c4e30d35827766c1f4be
        • MD5 SHA1 SHA512

        memory/1280-150-0x0000000005460000-0x0000000005470000-memory.dmp

        memory/1280-149-0x0000000006B20000-0x0000000006CE2000-memory.dmp

        memory/1280-148-0x0000000006900000-0x0000000006950000-memory.dmp

        memory/1280-147-0x0000000005460000-0x0000000005470000-memory.dmp

        memory/1280-146-0x00000000054A0000-0x0000000005506000-memory.dmp

        memory/1280-144-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/3140-136-0x0000000005130000-0x00000000051C2000-memory.dmp

        memory/3140-140-0x00000000053A0000-0x00000000053B0000-memory.dmp

        memory/3140-139-0x00000000053A0000-0x00000000053B0000-memory.dmp

        memory/3140-138-0x00000000052C0000-0x0000000005316000-memory.dmp

        memory/3140-137-0x0000000005090000-0x000000000509A000-memory.dmp

        memory/3140-133-0x0000000000560000-0x000000000063C000-memory.dmp

        memory/3140-135-0x0000000005640000-0x0000000005BE4000-memory.dmp

        memory/3140-134-0x0000000004FF0000-0x000000000508C000-memory.dmp