General

  • Target

    0785a5f7d125f04dd7288e564fba3b14b3d69f81f7bd22274783167826ddbf2d

  • Size

    5.0MB

  • Sample

    250221-b5xvhazndk

  • MD5

    3589af108fec9fb2f048d6c8fcfda215

  • SHA1

    8628f626009e61921a11a62efd51e47cbb657089

  • SHA256

    0785a5f7d125f04dd7288e564fba3b14b3d69f81f7bd22274783167826ddbf2d

  • SHA512

    375f94a4b24d0a2e608cc140a09804dc5efda71b3b52f653145c7367bd4887b08bb7ddd0736f7ba1afa7f87435f149f807b1b9b80b55ab6f9042f1f64a98f62b

  • SSDEEP

    98304:kNfVujKmhUlNKJTX25DkIUiWwL4P3fVojKXvwaOYNfIOyJraNTZzdC+kyArDJwm:ofVehqN6PfVhvxOAkzPrDJwm

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6920956123:AAF5MVKcRQXhI4WbvmFoIFU5yl4eW32KEn4/

Targets

    • Target

      0785a5f7d125f04dd7288e564fba3b14b3d69f81f7bd22274783167826ddbf2d

    • Size

      5.0MB

    • MD5

      3589af108fec9fb2f048d6c8fcfda215

    • SHA1

      8628f626009e61921a11a62efd51e47cbb657089

    • SHA256

      0785a5f7d125f04dd7288e564fba3b14b3d69f81f7bd22274783167826ddbf2d

    • SHA512

      375f94a4b24d0a2e608cc140a09804dc5efda71b3b52f653145c7367bd4887b08bb7ddd0736f7ba1afa7f87435f149f807b1b9b80b55ab6f9042f1f64a98f62b

    • SSDEEP

      98304:kNfVujKmhUlNKJTX25DkIUiWwL4P3fVojKXvwaOYNfIOyJraNTZzdC+kyArDJwm:ofVehqN6PfVhvxOAkzPrDJwm

    • AgentTesla

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

    • Agenttesla family

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Sectoprat family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Command and Scripting Interpreter: PowerShell

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

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks