General

  • Target

    skuld.exe

  • Size

    3.3MB

  • Sample

    241017-bkpndstflb

  • MD5

    b5e648164187948c217eea6ccc050309

  • SHA1

    477da0d8ecbd5a701e194a3428d903339688a303

  • SHA256

    1bfddb30d8d99718799ec533d513c7eb8e0ca3fd2aff87bb19c3ad0d09b73c13

  • SHA512

    538c8ccc62ffd4cd4d204df6eb168312b00901b24eb07c92e272555def8420e37dcd9c7fcb4cec84ea9e340563b5c1a6664ab66cdcc5540bf86f09b557141678

  • SSDEEP

    98304:F8egTVW/+U6PyIMEufQgvbK5nW4rC/RV1alA0V5+edf:SF+WWP/R0A0V5+of

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1296277918661738547/GvUWEusnErfhpdvz7DEgE8VzXSZ8oWS_ujEIVSB0XhETe5iWx3tB8zm_wjAS1bJTlXLF

Targets

    • Target

      skuld.exe

    • Size

      3.3MB

    • MD5

      b5e648164187948c217eea6ccc050309

    • SHA1

      477da0d8ecbd5a701e194a3428d903339688a303

    • SHA256

      1bfddb30d8d99718799ec533d513c7eb8e0ca3fd2aff87bb19c3ad0d09b73c13

    • SHA512

      538c8ccc62ffd4cd4d204df6eb168312b00901b24eb07c92e272555def8420e37dcd9c7fcb4cec84ea9e340563b5c1a6664ab66cdcc5540bf86f09b557141678

    • SSDEEP

      98304:F8egTVW/+U6PyIMEufQgvbK5nW4rC/RV1alA0V5+edf:SF+WWP/R0A0V5+of

    • Skuld stealer

      An info stealer written in Go lang.

    • 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

    • 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

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks