General

  • Target

    06d1a9fd3099cfb0cc829db930ab25f75a532e5e670e1704844cf7b1000d6314.exe

  • Size

    27.8MB

  • Sample

    240903-bfgf8aterg

  • MD5

    7ea99740a913fd01ab5b6d630a65f501

  • SHA1

    fe11a17c1a403d6df28508d576c76ece07cce88b

  • SHA256

    06d1a9fd3099cfb0cc829db930ab25f75a532e5e670e1704844cf7b1000d6314

  • SHA512

    29f0f688d920bccc887f70710c3b6b01dd004dbef0c294bc57a46d7c460dc979ddb08a8d3c21df26510cbe3c380dc17dcc43e4fa86dc9d56dd4ff17de2280953

  • SSDEEP

    393216:CUrTbCVFENlgdkQbaVxN2dAdpN7D9aJtW9dcGMBD2KSedViDKKeLQOshouIkPFt4:CUvRgdjtAd99dfGV6qLxwouZtRL

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

      06d1a9fd3099cfb0cc829db930ab25f75a532e5e670e1704844cf7b1000d6314.exe

    • Size

      27.8MB

    • MD5

      7ea99740a913fd01ab5b6d630a65f501

    • SHA1

      fe11a17c1a403d6df28508d576c76ece07cce88b

    • SHA256

      06d1a9fd3099cfb0cc829db930ab25f75a532e5e670e1704844cf7b1000d6314

    • SHA512

      29f0f688d920bccc887f70710c3b6b01dd004dbef0c294bc57a46d7c460dc979ddb08a8d3c21df26510cbe3c380dc17dcc43e4fa86dc9d56dd4ff17de2280953

    • SSDEEP

      393216:CUrTbCVFENlgdkQbaVxN2dAdpN7D9aJtW9dcGMBD2KSedViDKKeLQOshouIkPFt4:CUvRgdjtAd99dfGV6qLxwouZtRL

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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)

    • 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.

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks

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