Analysis

  • max time kernel
    138s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11/05/2022, 09:41

General

  • Target
    PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe
  • Size 689KB
  • Sample220511-lnt3dsbaak
  • SHA256 bc69363fcef0e7f595585f876b41915ccd50ee5e2efcc27b23f18a905b03f0e5
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    smtp.valtronics-ae.com

  • Port

    587

  • Password

    DhdXcLr4

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 4 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\PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4796
    • C:\Users\Admin\AppData\Local\Temp\PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2676

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PLACI-MIE SRL 11 MAY 22 - BML PAYMENT_pdf.exe.log
        • Size 1KB
        • SHA256 1ccd81d339d51696fa8569e0ea179873452e8aa087b14a397538cda74996fe00
        • MD5 SHA1 SHA512

        memory/2676-155-0x00000000056B0000-0x0000000005700000-memory.dmp

        memory/2676-140-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/4796-142-0x0000000004E10000-0x0000000004E32000-memory.dmp

        memory/4796-150-0x0000000007140000-0x000000000714A000-memory.dmp

        memory/4796-137-0x0000000000E70000-0x0000000000EA6000-memory.dmp

        memory/4796-138-0x0000000005020000-0x0000000005648000-memory.dmp

        memory/4796-154-0x00000000073F0000-0x00000000073F8000-memory.dmp

        memory/4796-153-0x0000000007410000-0x000000000742A000-memory.dmp

        memory/4796-152-0x0000000007300000-0x000000000730E000-memory.dmp

        memory/4796-151-0x0000000007350000-0x00000000073E6000-memory.dmp

        memory/4796-143-0x0000000005700000-0x0000000005766000-memory.dmp

        memory/4796-144-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

        memory/4796-145-0x0000000006D70000-0x0000000006DA2000-memory.dmp

        memory/4796-146-0x0000000070D20000-0x0000000070D6C000-memory.dmp

        memory/4796-147-0x0000000006380000-0x000000000639E000-memory.dmp

        memory/4796-148-0x0000000007710000-0x0000000007D8A000-memory.dmp

        memory/4796-149-0x00000000070D0000-0x00000000070EA000-memory.dmp

        memory/4932-135-0x00000000075A0000-0x0000000007606000-memory.dmp

        memory/4932-130-0x0000000000230000-0x00000000002E2000-memory.dmp

        memory/4932-132-0x0000000004CB0000-0x0000000004D42000-memory.dmp

        memory/4932-133-0x0000000004C60000-0x0000000004C6A000-memory.dmp

        memory/4932-134-0x00000000072F0000-0x000000000738C000-memory.dmp

        memory/4932-131-0x0000000005320000-0x00000000058C4000-memory.dmp