Analysis

  • max time kernel
    158s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 10:25

General

  • Target

    PURCHASE ORDER.exe

  • Size

    586KB

  • MD5

    a55b4bb09398659d69f1b8b37541e621

  • SHA1

    975f7c38780d00ae497fcb6addf31f5ad8cdb090

  • SHA256

    ea45a2032eebe69d32b15d3ea505330eb00b5026107e8e123fb9fb9e2bf87496

  • SHA512

    a5eb89b7b07ad51b747ba5c003d50ae8aa53c11adb23034da977e8ab25373a81c3c7216cda025c25a0d55f9cab989f93794d2512fb16a8998dfa8d58c5210590

  • SSDEEP

    12288:7gkzrbETClvHskFgFwIyXCD1vmAMDfJ0/IegnS1onhj6W4ytrRpMf:/76CVskFgqIyXFhS/ngSWhxROf

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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PAyWOGoRT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF84A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3872
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2864

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF84A.tmp

    Filesize

    1KB

    MD5

    5bf799512fe8fad1a44748b0dfab83a9

    SHA1

    51366f919fab409d14391d7e4988ccf897657a02

    SHA256

    0c706d1054b8287c16c830d6de6f2fb57dd5f10a323118526e8605e47c3f3199

    SHA512

    94a45d5bacc6b4d93065c34a263879df0f2d3237dcf023cabca348ea374a10a83b35b35b8053d6863273478b978ea868b7fd50ca7bd12ee81e251e24c844354a

  • memory/2864-140-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2864-141-0x0000000005BF0000-0x0000000005C56000-memory.dmp

    Filesize

    408KB

  • memory/2864-142-0x0000000000BB0000-0x0000000000C00000-memory.dmp

    Filesize

    320KB

  • memory/4004-132-0x0000000000880000-0x0000000000918000-memory.dmp

    Filesize

    608KB

  • memory/4004-133-0x0000000005970000-0x0000000005F14000-memory.dmp

    Filesize

    5.6MB

  • memory/4004-134-0x0000000005290000-0x0000000005322000-memory.dmp

    Filesize

    584KB

  • memory/4004-135-0x0000000005460000-0x00000000054FC000-memory.dmp

    Filesize

    624KB

  • memory/4004-136-0x0000000005340000-0x000000000534A000-memory.dmp

    Filesize

    40KB