Analysis

  • max time kernel
    120s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 01:40

General

  • Target

    2f2a5b335c8f2004e20a98d574c4c39a952d0eadecf8d035f60f941abcb8a436.exe

  • Size

    711KB

  • MD5

    1e3e1d598639d5d9d86e73c4549fea19

  • SHA1

    2a73816f13b46576ebb614a6570880c51d4104ea

  • SHA256

    2f2a5b335c8f2004e20a98d574c4c39a952d0eadecf8d035f60f941abcb8a436

  • SHA512

    4cbaa477e7f6fbce010e47b4ccea27403435dc971714702ce08de2100b89d9ac2c77c8a8106828410fac6d0deeaf90fc9d6d0bb308b3b722063a33b3feab50c5

  • SSDEEP

    12288:IBTKt/rFfaxdAZrnBDcLguCvpTkbbIyX8OA7OZeK5hzof8gbXv3S/IHXEaTk7pYl:uKN5i/AZrBDvvpTzyX/ZeK59gzv3WOxF

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.deblokhoeve.be
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Blokhoeve2490.i

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f2a5b335c8f2004e20a98d574c4c39a952d0eadecf8d035f60f941abcb8a436.exe
    "C:\Users\Admin\AppData\Local\Temp\2f2a5b335c8f2004e20a98d574c4c39a952d0eadecf8d035f60f941abcb8a436.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xTBpCPBoAPCxb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2552
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xTBpCPBoAPCxb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E73.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2532
    • C:\Users\Admin\AppData\Local\Temp\2f2a5b335c8f2004e20a98d574c4c39a952d0eadecf8d035f60f941abcb8a436.exe
      "C:\Users\Admin\AppData\Local\Temp\2f2a5b335c8f2004e20a98d574c4c39a952d0eadecf8d035f60f941abcb8a436.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7E73.tmp

    Filesize

    1KB

    MD5

    db29b81d8059b7162cb643b3d62ead8b

    SHA1

    05896b5e756f0d6225d23d495dffe770167a0923

    SHA256

    b869700d41527bceeee3a4f4910c7db171174587944ae6a390fe931226371e2e

    SHA512

    319d8680c26d292bec9f3ab8913156fe93220f46fd683afa90302e9fa519273b0cb18fe523029761fc23c3d54feb19050b2b09ad9bf959a9191b6cce2a6043f3

  • memory/2204-12-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2204-5-0x00000000006D0000-0x00000000006E0000-memory.dmp

    Filesize

    64KB

  • memory/2204-0-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2204-4-0x00000000006C0000-0x00000000006CE000-memory.dmp

    Filesize

    56KB

  • memory/2204-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2204-6-0x0000000005070000-0x00000000050F6000-memory.dmp

    Filesize

    536KB

  • memory/2204-1-0x00000000002A0000-0x0000000000358000-memory.dmp

    Filesize

    736KB

  • memory/2204-28-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2204-3-0x00000000006A0000-0x00000000006B6000-memory.dmp

    Filesize

    88KB

  • memory/2792-24-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-15-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-27-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-25-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2792-21-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-17-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-19-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB