Analysis

  • max time kernel
    120s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/03/2024, 01:48

General

  • Target

    EKSTRE.exe

  • Size

    743KB

  • MD5

    0e1667b99c63fe9538224c067cc27e14

  • SHA1

    63222f5bc43dbc5b8bcf5eaba253ab2db3601b0f

  • SHA256

    aa0bb57cc545a3e7e234ef691f84ea8f2fc90f4e024a3addcc23d2f20a0e63e0

  • SHA512

    a7776aa20b7581666bc49ffb168cb17b588c7833b07b3e011e250e87241deefa5bc87c91e528d03213358af48110e87dd890d2f908d86979be3dd9be3f485743

  • SSDEEP

    12288:sBtg6Z/jRu90UkSmo8ZgcfNI5LX+39uE0krgTT+bZQK3EP9dgNkR:JQ/jE9wojcfNIgNZEvE8ldJ

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

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

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EKSTRE.exe
    "C:\Users\Admin\AppData\Local\Temp\EKSTRE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2144
    • 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\EKSTRE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2456
    • C:\Users\Admin\AppData\Local\Temp\EKSTRE.exe
      "C:\Users\Admin\AppData\Local\Temp\EKSTRE.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2144-6-0x0000000004F70000-0x0000000004FF4000-memory.dmp

    Filesize

    528KB

  • memory/2144-7-0x00000000746F0000-0x0000000074DDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2144-2-0x0000000004BD0000-0x0000000004C10000-memory.dmp

    Filesize

    256KB

  • memory/2144-3-0x0000000000610000-0x0000000000624000-memory.dmp

    Filesize

    80KB

  • memory/2144-4-0x0000000001E20000-0x0000000001E2A000-memory.dmp

    Filesize

    40KB

  • memory/2144-5-0x0000000001E30000-0x0000000001E3E000-memory.dmp

    Filesize

    56KB

  • memory/2144-1-0x00000000746F0000-0x0000000074DDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2144-0-0x0000000000130000-0x00000000001EC000-memory.dmp

    Filesize

    752KB

  • memory/2144-21-0x00000000746F0000-0x0000000074DDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2144-8-0x0000000004BD0000-0x0000000004C10000-memory.dmp

    Filesize

    256KB

  • memory/2456-33-0x000000006F9E0000-0x000000006FF8B000-memory.dmp

    Filesize

    5.7MB

  • memory/2456-31-0x00000000024F0000-0x0000000002530000-memory.dmp

    Filesize

    256KB

  • memory/2456-32-0x00000000024F0000-0x0000000002530000-memory.dmp

    Filesize

    256KB

  • memory/2456-30-0x000000006F9E0000-0x000000006FF8B000-memory.dmp

    Filesize

    5.7MB

  • memory/2456-29-0x000000006F9E0000-0x000000006FF8B000-memory.dmp

    Filesize

    5.7MB

  • memory/2864-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-25-0x00000000736B0000-0x0000000073D9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2864-26-0x00000000006D0000-0x0000000000710000-memory.dmp

    Filesize

    256KB

  • memory/2864-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2864-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-34-0x00000000736B0000-0x0000000073D9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2864-35-0x00000000006D0000-0x0000000000710000-memory.dmp

    Filesize

    256KB