Extracted

• • Target

    skuld-main.exe

  • Size

    3.9MB

  • MD5

    aa6ab61ffec1cadb1f1fb9e409434d23

  • SHA1

    36d9bcca5162c35b0d12955c22bd913a91f20d61

  • SHA256

    fd27388ee0e064cc6c28557ced21dd581e98938449e1fa90e77de6961665f8db

  • SHA512

    f0017002feb946a901ac363e60f87ed175926992a4369a1fa1b59ccea1e36d46b5488a76c035566605f4388b015d4e9239c0d968c83b9399efd19e96818d0c52

  • SSDEEP

    98304:tx64YRFYsecOWle37HUjioDRo/Kjaf2kSsTUGqgytme:j2n2xtoDi/KxkSsoGxytD

  Score

  10^/10

  skulddiscoverystealercredential_accessdefense_evasionexecutionpersistenceprivilege_escalationspyware

  • Skuld stealer

    An info stealer written in Go lang.

    stealerskuld

  • Credentials from Password Stores: Credentials from Web Browsers

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Drops file in Drivers directory

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE

  • Loads dropped DLL

  • Reads user/profile data of local email clients

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Unsecured Credentials: Credentials In Files

    Steal credentials from unsecured files.

    credential_accessstealer

  • Accesses cryptocurrency files/wallets, possible credential harvesting

    spyware

  • Adds Run key to start application

    persistence

  • 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.

    defense_evasion
  behavioral1behavioral2