Analysis

  • max time kernel
    143s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:37

General

  • Target

    PO-11059021022021.exe

  • Size

    406KB

  • MD5

    c14e2f7c8e8cc81b9dca88b81369b5aa

  • SHA1

    845056cffbc74ef74ae18f1535819c1fd1eaefbf

  • SHA256

    329def7ed2b3e21852c057f9db14aa69756635b6be94de40b19b95bd10e1d71d

  • SHA512

    fe928fb529c1c0899a1d9f37ec8c5b7dce2341639f79d1d2a3a8aa0ab503012ff0a62900ebcf7a4dc9d05382716c9747a93ea1424bcabc9173f39a418435ffde

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.standard-engg.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Standard123#@!

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-11059021022021.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-11059021022021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5016
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:4300
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Drops file in Drivers directory
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:4348
        • 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:3820

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    2
    T1112

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3820-140-0x0000000000000000-mapping.dmp
    • memory/4300-135-0x0000000000000000-mapping.dmp
    • memory/4348-136-0x0000000000000000-mapping.dmp
    • memory/4348-137-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/4348-138-0x0000000006630000-0x0000000006696000-memory.dmp
      Filesize

      408KB

    • memory/4348-139-0x0000000006B50000-0x0000000006BA0000-memory.dmp
      Filesize

      320KB

    • memory/5016-130-0x0000000000B50000-0x0000000000BBC000-memory.dmp
      Filesize

      432KB

    • memory/5016-131-0x0000000005B80000-0x0000000006124000-memory.dmp
      Filesize

      5.6MB

    • memory/5016-132-0x00000000055D0000-0x0000000005662000-memory.dmp
      Filesize

      584KB

    • memory/5016-133-0x0000000005560000-0x000000000556A000-memory.dmp
      Filesize

      40KB

    • memory/5016-134-0x0000000005830000-0x00000000058CC000-memory.dmp
      Filesize

      624KB