Extracted

• • Target

    skuld.sfx.exe

  • Size

    3.7MB

  • MD5

    c22852523a7ecfc152e31ab535e02fd2

  • SHA1

    bfd7e15bb7a0ab28b7a6b21124bc963dc09ecbb8

  • SHA256

    a94ea7310ba474d5e22faf966dc930915b18d2d54178f2ae31af20156ea9360a

  • SHA512

    eaceef152e9fdcea1a2b04ad0bc828dd72ea90b703466c65baf5ba04391c628acd5509c79801019fc779105b0ae27c62f84b5a259e20ad8bcaf014bce519e246

  • SSDEEP

    98304:tVBHStoOEyvuShmCYhCaZfcvscTzhDDh9e5jqbP6:DBHSSOZuBC4C0kv3NDhMdqC

  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