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Analysis

  • max time kernel
    66s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2023, 15:46

General

  • Target

    e-dekont-20230303-0.pdf.exe

  • Size

    915KB

  • MD5

    b317c7d7a4511fdfbae78b7cb0ca4320

  • SHA1

    df8eff48a498fa3550e1c60395c5204dba7cbad5

  • SHA256

    8197e71791a36b364c735addbf05c9533530aae40f1c4d124d7ed098705d2a2f

  • SHA512

    d34a9fc75aa5a1cb3f539630bc6c17299036e1b3e59551769e27eef7479165eadb44036e579db9febf12083111d2c54ac971fff036fa24b72dbf5edb2dfa5906

  • SSDEEP

    24576:H1Qwe3cOQ8Q8+2QI08eFnuVI25ZMsRo+b:HBuQ8+2Q6eFnAI2XRo

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5927276382:AAGhv1qf5Km1S52KrhPWDYFsGXK2Gr_4T7I/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e-dekont-20230303-0.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\e-dekont-20230303-0.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1232
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vrlaJIXKkDK.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1656
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vrlaJIXKkDK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCFCE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:768
    • C:\Users\Admin\AppData\Local\Temp\e-dekont-20230303-0.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\e-dekont-20230303-0.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    909d9148095dbb4839ac927811a6e7d4

    SHA1

    03b9d682757ff270699768f1e2946f222070924a

    SHA256

    698f93eb4efb2caffeafa3c0e54268e4eff3d5b6af7ad2dfd8c50a8bb2cae6bf

    SHA512

    4b2458a7f26a4c5c2900339c3260f50e5f6ea485dfdb27d371f073be84cf82b7be5716d155daef68a3404388721e294e76e28eb4e5611c512d8bfb1aaacd8725

  • memory/1116-77-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1116-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1116-105-0x0000000004E70000-0x0000000004EB0000-memory.dmp

    Filesize

    256KB

  • memory/1116-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1116-78-0x0000000004E70000-0x0000000004EB0000-memory.dmp

    Filesize

    256KB

  • memory/1116-69-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1116-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1116-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1116-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1116-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1232-58-0x0000000000520000-0x000000000052C000-memory.dmp

    Filesize

    48KB

  • memory/1232-56-0x0000000000410000-0x0000000000426000-memory.dmp

    Filesize

    88KB

  • memory/1232-67-0x0000000002100000-0x0000000002132000-memory.dmp

    Filesize

    200KB

  • memory/1232-55-0x0000000004F10000-0x0000000004F50000-memory.dmp

    Filesize

    256KB

  • memory/1232-54-0x00000000008B0000-0x000000000099C000-memory.dmp

    Filesize

    944KB

  • memory/1232-59-0x00000000053F0000-0x000000000549C000-memory.dmp

    Filesize

    688KB

  • memory/1232-57-0x0000000004F10000-0x0000000004F50000-memory.dmp

    Filesize

    256KB

  • memory/1656-79-0x00000000026B0000-0x00000000026F0000-memory.dmp

    Filesize

    256KB

  • memory/1656-80-0x00000000026B0000-0x00000000026F0000-memory.dmp

    Filesize

    256KB