General

  • Target

    https://cdn.discordapp.com/attachments/1279538248812728444/1279554286606356606/protected.exe?ex=66de17ca&is=66dcc64a&hm=43250b2cd503619bdfc07222d9499ec7477897d59a519ea19ce0c71f0ab6bf0a&

  • Sample

    240907-13d22sxhnk

Malware Config

Extracted

Family

skuld

C2

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

Targets

    • Target

      https://cdn.discordapp.com/attachments/1279538248812728444/1279554286606356606/protected.exe?ex=66de17ca&is=66dcc64a&hm=43250b2cd503619bdfc07222d9499ec7477897d59a519ea19ce0c71f0ab6bf0a&

    • 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

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • 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