General

  • Target

    zwerve.exe

  • Size

    9.9MB

  • Sample

    240916-p64akaydje

  • MD5

    9688cf5ff838a8d951b98b5e831354ed

  • SHA1

    4fbe1f691648d59c372e2d03d17a013252f79843

  • SHA256

    292b6f8f6b1d5b1b6221ba6b1adb80ec554b61d61e9bb957121d8ceb16a8e34c

  • SHA512

    553ad59a6a66fec70b0364428445796e3257a49ea6a2340eb4f7fba9e711d43720c76acf9543a80704a5e00326b261fdf15701a8907c9df1682da10116369d24

  • SSDEEP

    98304:NQI9wzKxmhMIIKfGTibiyCC9cK8VE2ICafZmwjsEejd:NIzKxmhhtbiyCicRmDUjd

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1284313945175359529/oAI5xFZA4-ekztJ7QNXooNejS1EcAtsj4Ddv5zy_k59bucqD089IfflyO8uUt-sNtITI

Targets

    • Target

      zwerve.exe

    • Size

      9.9MB

    • MD5

      9688cf5ff838a8d951b98b5e831354ed

    • SHA1

      4fbe1f691648d59c372e2d03d17a013252f79843

    • SHA256

      292b6f8f6b1d5b1b6221ba6b1adb80ec554b61d61e9bb957121d8ceb16a8e34c

    • SHA512

      553ad59a6a66fec70b0364428445796e3257a49ea6a2340eb4f7fba9e711d43720c76acf9543a80704a5e00326b261fdf15701a8907c9df1682da10116369d24

    • SSDEEP

      98304:NQI9wzKxmhMIIKfGTibiyCC9cK8VE2ICafZmwjsEejd:NIzKxmhhtbiyCicRmDUjd

    • Skuld stealer

      An info stealer written in Go lang.

    • 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.

    • Drops file in Drivers directory

    • 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.

    • 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.

    • Maps connected drives based on registry

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v15

Tasks