General

  • Target

    RNSM00284.7z

  • Size

    13.9MB

  • Sample

    241119-w8z49azdlh

  • MD5

    e20f6ad9e266cbabca31feedc697cfa5

  • SHA1

    be955cbc02286ea800dd11887f63a624a25a8013

  • SHA256

    312fdde51aed90d23843d50649032290c89b8af4661d61f5baa032b03ba870db

  • SHA512

    112fcb80fa932efe1bf09cdf7c32350634e3ab6ed1ceb0ce66fed93830ecc47b7397b5d404cc2d20dad8368ddbd4c0d25d11b4dd144d46ecad4963ef893f58ab

  • SSDEEP

    393216:vzae+bw+rVeYq6BywWZSh7T3M6ZEWu8inEOiCR+zqQ97r6oaKh:qBBdq60wWE1E5bjiCR+zqQ97r6oa6

Malware Config

Targets

    • Target

      RNSM00284.7z

    • Size

      13.9MB

    • MD5

      e20f6ad9e266cbabca31feedc697cfa5

    • SHA1

      be955cbc02286ea800dd11887f63a624a25a8013

    • SHA256

      312fdde51aed90d23843d50649032290c89b8af4661d61f5baa032b03ba870db

    • SHA512

      112fcb80fa932efe1bf09cdf7c32350634e3ab6ed1ceb0ce66fed93830ecc47b7397b5d404cc2d20dad8368ddbd4c0d25d11b4dd144d46ecad4963ef893f58ab

    • SSDEEP

      393216:vzae+bw+rVeYq6BywWZSh7T3M6ZEWu8inEOiCR+zqQ97r6oaKh:qBBdq60wWE1E5bjiCR+zqQ97r6oa6

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Cerber family

    • Gozi

      Gozi is a well-known and widely distributed banking trojan.

    • Gozi family

    • Locky

      Ransomware strain released in 2016, with advanced features like anti-analysis.

    • Locky family

    • Troldesh family

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

    • UAC bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Contacts a large (1111) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Checks BIOS information in registry

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks