General

  • Target

    loader.exe

  • Size

    39.3MB

  • Sample

    240713-26jx5ssglc

  • MD5

    cb5900d8c99b9b2b8391c5e07de93048

  • SHA1

    21434e75d38c698a924a28a39498f230ba1e23f2

  • SHA256

    53d60f5a2e65c6aae90eb6e9f872cd381fc152f33e8227bef5fe27d61e09ceb3

  • SHA512

    148be276c6a8b98971c975c27a7b4d27146667b80447198d09777131b2dd5511de51db3ded5b3d04b72a85f12f772792e0590427c3cbceb2b1d9b5420d9d205d

  • SSDEEP

    786432:vp039FS+ab44n6ASQSc6k00CZcKoTMS4n4BgmpHvT6CKrftQKN:vps9Fnab4+6DQSc6JUCSC4hH2CKLtQK

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

Targets

    • Target

      loader.exe

    • Size

      39.3MB

    • MD5

      cb5900d8c99b9b2b8391c5e07de93048

    • SHA1

      21434e75d38c698a924a28a39498f230ba1e23f2

    • SHA256

      53d60f5a2e65c6aae90eb6e9f872cd381fc152f33e8227bef5fe27d61e09ceb3

    • SHA512

      148be276c6a8b98971c975c27a7b4d27146667b80447198d09777131b2dd5511de51db3ded5b3d04b72a85f12f772792e0590427c3cbceb2b1d9b5420d9d205d

    • SSDEEP

      786432:vp039FS+ab44n6ASQSc6k00CZcKoTMS4n4BgmpHvT6CKrftQKN:vps9Fnab4+6DQSc6JUCSC4hH2CKLtQK

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

    • 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.

    • Stops running service(s)

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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