Analysis

  • max time kernel
    122s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13/01/2025, 01:16

General

  • Target

    d3e83fef64df80641024401e4604b16a39b294fa932ee8c232533156046858e7.exe

  • Size

    1.5MB

  • MD5

    376ec2d8cbef9b92a35937da97ae645a

  • SHA1

    6e13533f08f45a85c8e21b6da4877760a4240493

  • SHA256

    d3e83fef64df80641024401e4604b16a39b294fa932ee8c232533156046858e7

  • SHA512

    49a063f6450c95ac5239fa6441d9ef469e940ea8799b80a4b426ba3e11ca05215a5b4f120225d5b53ccda2614713c59cae0429b6bbe5b1dc2c5ac4206a45eb94

  • SSDEEP

    24576:MQV08Jj4/8JK9moZuh6pEe7kBTOHbtv1RIAhjLoamMiX4lNmZg0YxegPbUIDPP:iEc/LY+x7kobjLoyEkmZ9Y14

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5787817567:AAFfgdsJ5_sXLdsezA8LUYkGkFAqmdOpZG4/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d3e83fef64df80641024401e4604b16a39b294fa932ee8c232533156046858e7.exe
    "C:\Users\Admin\AppData\Local\Temp\d3e83fef64df80641024401e4604b16a39b294fa932ee8c232533156046858e7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1872
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\affXwYLjJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2576
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\affXwYLjJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2848.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2592
    • C:\Users\Admin\AppData\Local\Temp\d3e83fef64df80641024401e4604b16a39b294fa932ee8c232533156046858e7.exe
      "C:\Users\Admin\AppData\Local\Temp\d3e83fef64df80641024401e4604b16a39b294fa932ee8c232533156046858e7.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp2848.tmp

    Filesize

    1KB

    MD5

    2e00c5a153005cfe118d80bc96a522b9

    SHA1

    be8e3189de18ac81f5d7ceea3f3568bf25d19267

    SHA256

    603b5ff7d2a5bbddbbc54afcba0b1722ee2437cd65176b77bb6be6768d1687fd

    SHA512

    20230dbbb3f6532b4d4477eed2fe00b2b677b65088c84aa74db777162a477cd0622efdfd3e45f5ebe5dd787b0d67af151fc099936506daff5e37fc1450ced573

  • memory/1872-4-0x00000000747DE000-0x00000000747DF000-memory.dmp

    Filesize

    4KB

  • memory/1872-25-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/1872-3-0x0000000000550000-0x000000000055C000-memory.dmp

    Filesize

    48KB

  • memory/1872-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

    Filesize

    4KB

  • memory/1872-5-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/1872-6-0x0000000000630000-0x000000000063C000-memory.dmp

    Filesize

    48KB

  • memory/1872-7-0x00000000054B0000-0x000000000551A000-memory.dmp

    Filesize

    424KB

  • memory/1872-1-0x0000000000B70000-0x0000000000CFA000-memory.dmp

    Filesize

    1.5MB

  • memory/1872-2-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-13-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2568-22-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2568-26-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2568-23-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2568-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2568-19-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2568-17-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2568-16-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB