General

  • Target

    Rezama-executor.exe

  • Size

    7.7MB

  • Sample

    241207-bztwnaymbx

  • MD5

    5de3184d440140d7a463c50450fcc250

  • SHA1

    da7bcf23c2b43383564b3e759d71650f4ed65cfa

  • SHA256

    1796c962f334eb3814163ed6d09b3c29a4b08f545d12663b3b3c8ec0093acba0

  • SHA512

    a1198a60c36e34ed3c18ae68944a8fec6a0cee6fdc70140ac212171300810933ea197611d8358bb272e0a72bc4a5cb4f663d9fa69583bf237f5dbed474fb53fb

  • SSDEEP

    196608:IVD+kdqwfI9jUCBB7m+mKOY7rXrZusoSDmhfvsbnTNeWV:I5TIHL7HmBYXrYSaUN3

Malware Config

Targets

    • Target

      Rezama-executor.exe

    • Size

      7.7MB

    • MD5

      5de3184d440140d7a463c50450fcc250

    • SHA1

      da7bcf23c2b43383564b3e759d71650f4ed65cfa

    • SHA256

      1796c962f334eb3814163ed6d09b3c29a4b08f545d12663b3b3c8ec0093acba0

    • SHA512

      a1198a60c36e34ed3c18ae68944a8fec6a0cee6fdc70140ac212171300810933ea197611d8358bb272e0a72bc4a5cb4f663d9fa69583bf237f5dbed474fb53fb

    • SSDEEP

      196608:IVD+kdqwfI9jUCBB7m+mKOY7rXrZusoSDmhfvsbnTNeWV:I5TIHL7HmBYXrYSaUN3

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks