General

  • Target

    726653ca6a7c8ba9be0c2a8be957b464bd108580e9e6135cce2b11b124180e94

  • Size

    4.6MB

  • Sample

    241102-bq5xkawkbx

  • MD5

    513e198d8d3251a4114115603be2ef5b

  • SHA1

    fc273f9f478d807b87bf17c9ebedd49fe4451509

  • SHA256

    726653ca6a7c8ba9be0c2a8be957b464bd108580e9e6135cce2b11b124180e94

  • SHA512

    b689ea55a907f743af6f6c44cd175ca7dccd346fffca25aae9f472745d8c4248dd9f0ec8380fb936e95067d35768282991b327073c29baab1c78bf57559004c9

  • SSDEEP

    98304:IsTtFCMoEBCSbrQJEqAQPqGwxMDYNaYHzPcLZc/9fFQucTeu52Xu:IitFXoBo0rVwxWYNzHg21NQucTj5w

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7390139954:AAFw-89dzufZnN9iQ-qMJ7xuGsXRrzvXAEI/

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7390139954:AAFw-89dzufZnN9iQ-qMJ7xuGsXRrzvXAEI/sendDocumen

Targets

    • Target

      726653ca6a7c8ba9be0c2a8be957b464bd108580e9e6135cce2b11b124180e94

    • Size

      4.6MB

    • MD5

      513e198d8d3251a4114115603be2ef5b

    • SHA1

      fc273f9f478d807b87bf17c9ebedd49fe4451509

    • SHA256

      726653ca6a7c8ba9be0c2a8be957b464bd108580e9e6135cce2b11b124180e94

    • SHA512

      b689ea55a907f743af6f6c44cd175ca7dccd346fffca25aae9f472745d8c4248dd9f0ec8380fb936e95067d35768282991b327073c29baab1c78bf57559004c9

    • SSDEEP

      98304:IsTtFCMoEBCSbrQJEqAQPqGwxMDYNaYHzPcLZc/9fFQucTeu52Xu:IitFXoBo0rVwxWYNzHg21NQucTj5w

    • AgentTesla

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

    • Agenttesla family

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • Redline 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