General

  • Target

    speed.exe

  • Size

    7.2MB

  • Sample

    240902-t8as9atgkm

  • MD5

    550d4c4fc723beba62cafb93ffff6357

  • SHA1

    4c9b51dbc01c69d4b8e2cef3d6a0b12f2824c254

  • SHA256

    a203380c24f97ebad23887025511ffb650e12fd3a70027b541ad46f53827ab90

  • SHA512

    c409e16112adc30d2a36f1fe9d36fc1ef4ed2473dd03c863a1cfc7fa4e0ce6f57fa16057db63df12fcdbb9a3fc5dca0caa4b36c7b1b70f1d6f6729ab092ad3b7

  • SSDEEP

    196608:tyMyVQU42UWHtjXi9VYbXJ4ay6iuLPPO:4MyV62THtKyXeayYz2

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1279926585402593512/-p7sFnb_2x6CbCygjElBC0Haj-3_Y2RxDPvXsumD8jWDE7C7BvP3uhfi8a5Z45S9Whkt

Targets

    • Target

      speed.exe

    • Size

      7.2MB

    • MD5

      550d4c4fc723beba62cafb93ffff6357

    • SHA1

      4c9b51dbc01c69d4b8e2cef3d6a0b12f2824c254

    • SHA256

      a203380c24f97ebad23887025511ffb650e12fd3a70027b541ad46f53827ab90

    • SHA512

      c409e16112adc30d2a36f1fe9d36fc1ef4ed2473dd03c863a1cfc7fa4e0ce6f57fa16057db63df12fcdbb9a3fc5dca0caa4b36c7b1b70f1d6f6729ab092ad3b7

    • SSDEEP

      196608:tyMyVQU42UWHtjXi9VYbXJ4ay6iuLPPO:4MyV62THtKyXeayYz2

    • 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

      Using powershell.exe command.

    • 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.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

MITRE ATT&CK Enterprise v15

Tasks