General

  • Target

    _protected.exe

  • Size

    15.3MB

  • Sample

    240831-1drxlswgrk

  • MD5

    5bc9c103742fa7e457e906e07832c395

  • SHA1

    142c19a8f1dd419ce9c2f251cbc263b8abf476de

  • SHA256

    9030098c9b2ecabe713d76727ccc2be79663d55716644446bb1482d948697e17

  • SHA512

    1633349abd47715ed0804cb08798e9b12c862fe4239953de21481a07de502d13be74879e8ce7a962c1c68e1c967b47337095cc7458c40e702023d6f241536221

  • SSDEEP

    196608:/tp+pRF2L2DOMpQJ7c/9VI33COUkbHIHfE6wO0vEuM3Op9MnYQcHh/fT+X2DjL:SpRVhpQVc1SnzUkYE8SEb3gHpDjL

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1279552508578238534/-lGdkw-tDuy6Wd-I7APMhPnY3Tp2Oh3ZxzkvZFiG36eu6-pHpBKf4a2y4W0ZpaNYzcmk

Targets

    • Target

      _protected.exe

    • Size

      15.3MB

    • MD5

      5bc9c103742fa7e457e906e07832c395

    • SHA1

      142c19a8f1dd419ce9c2f251cbc263b8abf476de

    • SHA256

      9030098c9b2ecabe713d76727ccc2be79663d55716644446bb1482d948697e17

    • SHA512

      1633349abd47715ed0804cb08798e9b12c862fe4239953de21481a07de502d13be74879e8ce7a962c1c68e1c967b47337095cc7458c40e702023d6f241536221

    • SSDEEP

      196608:/tp+pRF2L2DOMpQJ7c/9VI33COUkbHIHfE6wO0vEuM3Op9MnYQcHh/fT+X2DjL:SpRVhpQVc1SnzUkYE8SEb3gHpDjL

    • 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.

    • 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.

    • Drops file in Drivers directory

    • Checks BIOS information in registry

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

    • 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

    • Checks whether UAC is enabled

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks