Analysis

  • max time kernel
    90s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:24

General

  • Target

    PURCHASE ORDER KALI-1374W.exe

  • Size

    492KB

  • MD5

    8d51581d38bf6d814eeb107d8bb7056c

  • SHA1

    cf22a586b7a298ab0032b20695902d43673d9c17

  • SHA256

    1ab6018047531cee5f411099f396fb8fcdf2c8c20062e9c33118726265ccd5fb

  • SHA512

    54588360eda1bd70c2b8da73297676d9bcbb6db0c56c49fa442308b7fdb1b2429586d9c7db5ccdcd23afc2d39fd5d2e40382faebbbe738ebdf363f13cd1cd563

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:324
    • 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:3168
      • 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:4328
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:640
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 1564
          3⤵
          • Program crash
          PID:3572
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3168 -ip 3168
      1⤵
        PID:4520

      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/324-130-0x0000000000450000-0x00000000004D2000-memory.dmp
        Filesize

        520KB

      • memory/324-131-0x00000000053B0000-0x0000000005954000-memory.dmp
        Filesize

        5.6MB

      • memory/324-132-0x0000000004EA0000-0x0000000004F32000-memory.dmp
        Filesize

        584KB

      • memory/324-133-0x0000000004E90000-0x0000000004E9A000-memory.dmp
        Filesize

        40KB

      • memory/324-134-0x0000000008EA0000-0x0000000008F3C000-memory.dmp
        Filesize

        624KB

      • memory/640-140-0x0000000000000000-mapping.dmp
      • memory/3168-135-0x0000000000000000-mapping.dmp
      • memory/3168-136-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3168-137-0x0000000005960000-0x00000000059C6000-memory.dmp
        Filesize

        408KB

      • memory/3168-139-0x00000000068D0000-0x0000000006920000-memory.dmp
        Filesize

        320KB

      • memory/4328-138-0x0000000000000000-mapping.dmp