General

  • Target

    s.exe

  • Size

    18.9MB

  • Sample

    240721-gdpygavene

  • MD5

    0ffb0d17b199b2748b2f16e98e441f94

  • SHA1

    b792e0a9bcb22981651be78d9820f77a7d579479

  • SHA256

    7ad4e4c87ee10590f37f68da3480ed6727a13eb2c95ca3b0c14ab4250b06cadd

  • SHA512

    f125846caace3d493334e33991907d64ba0622efbef9e12a5d0f5af832f57d238ac0ed009bbbd98a21145cd9248327ed556eaebb13dd2133089b60d47cc85232

  • SSDEEP

    393216:ywIP6vlW6zvKl8O/GZ/VEyKBSZX+d+brPKLqT7GP8zHFpw:AP6Y6rG8O2IBSZZyW/GcFC

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/sendDocument?chat_id=-1002245526003&caption=%F0%9F%93%82%20-%20Browser%20data%0A%E2%94%9C%E2%94%80%E2%94%80%20%F0%9F%93%82%20-%20cookies(0%20kb

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/sendMessage?chat_id=-1002245526003

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/getUpdates?offset=-

https://api.telegram.org/bot7457548429:AAGMvKYWjBbGXayEC5uoksRl1i2BIy7ylDg/sendMessage?chat_id=6024388590

https://api.telegram.org/bot7457548429:AAGMvKYWjBbGXayEC5uoksRl1i2BIy7ylDg/getUpdates?offset=-

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/sendDocument?chat_id=-1002245526003&caption=%F0%9F%93%B8Screenshot%20take

Targets

    • Target

      s.exe

    • Size

      18.9MB

    • MD5

      0ffb0d17b199b2748b2f16e98e441f94

    • SHA1

      b792e0a9bcb22981651be78d9820f77a7d579479

    • SHA256

      7ad4e4c87ee10590f37f68da3480ed6727a13eb2c95ca3b0c14ab4250b06cadd

    • SHA512

      f125846caace3d493334e33991907d64ba0622efbef9e12a5d0f5af832f57d238ac0ed009bbbd98a21145cd9248327ed556eaebb13dd2133089b60d47cc85232

    • SSDEEP

      393216:ywIP6vlW6zvKl8O/GZ/VEyKBSZX+d+brPKLqT7GP8zHFpw:AP6Y6rG8O2IBSZZyW/GcFC

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

    • Modifies security service

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Command and Scripting Interpreter: PowerShell

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

    • Contacts a large (1027) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Sets service image path in registry

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks