Analysis

  • max time kernel
    91s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 03:19

General

  • Target

    PURCHASE ORDER KALI-1374W.exe

  • Size

    592KB

  • MD5

    d8c4f79c53e551b8fc73c4411996d907

  • SHA1

    99630818dff1e7b6f5ef56b766d70ba12411c5ee

  • SHA256

    a083e924898a75762310530246d06bdadd4507aa660a62a9e5913c7862ba0152

  • SHA512

    e8351ebbe95efb29b5207960436dd27ec913d6eeafe16f7a59131a7e9ecb6c56bc1f29ea15376d975d1a7a6c236d6fadaeddae970f86923dd7c38ca317452cb6

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.pptoursperu.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mailppt2019-

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\PURCHASE ORDER KALI-1374W.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER KALI-1374W.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2860
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        3⤵
        • Modifies registry key
        PID:748
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:5096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 1604
          3⤵
          • Program crash
          PID:3884
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2860 -ip 2860
      1⤵
        PID:1704

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Modify Registry

      1
      T1112

      Collection

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/748-138-0x0000000000000000-mapping.dmp
      • memory/2500-130-0x0000000000510000-0x00000000005AA000-memory.dmp
        Filesize

        616KB

      • memory/2500-131-0x0000000007910000-0x0000000007EB4000-memory.dmp
        Filesize

        5.6MB

      • memory/2500-132-0x0000000007420000-0x00000000074B2000-memory.dmp
        Filesize

        584KB

      • memory/2500-133-0x00000000074C0000-0x00000000074CA000-memory.dmp
        Filesize

        40KB

      • memory/2500-134-0x000000000AED0000-0x000000000AF6C000-memory.dmp
        Filesize

        624KB

      • memory/2860-135-0x0000000000000000-mapping.dmp
      • memory/2860-136-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/2860-137-0x0000000006360000-0x00000000063C6000-memory.dmp
        Filesize

        408KB

      • memory/2860-139-0x0000000006AD0000-0x0000000006B20000-memory.dmp
        Filesize

        320KB

      • memory/5096-140-0x0000000000000000-mapping.dmp