Cервис управления информационной безопасностью
Cервис управления информационной безопасностью
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MITRE ATT&CK - Инструмент macOS.OSAMiner
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MITRE ATT&CK
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MITRE ATT&CK
Инструмент
macOS.OSAMiner
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macOS.OSAMiner

macOS.OSAMiner is a Monero mining trojan that was first observed in 2018; security researchers assessed macOS.OSAMiner may have been circulating since at least 2015. macOS.OSAMiner is known for embedding one run-only AppleScript into another, which helped the malware evade full analysis for five years due to a lack of Apple event (AEVT) analysis tools.(Citation: SentinelLabs reversing run-only applescripts 2021)(Citation: VMRay OSAMiner dynamic analysis 2021)
ID: S1048
Type: MALWARE
Platforms: Windows
Version: 1.0
Created: 04 Oct 2022
Last Modified: 19 Oct 2022

Techniques Used
Domain ID Name Use
Enterprise T1059 .002 Command and Scripting Interpreter: AppleScript

macOS.OSAMiner has used `osascript` to call itself via the `do shell script` command in the Launch Agent `.plist` file.(Citation: SentinelLabs reversing run-only applescripts 2021)
Enterprise T1543 .001 Create or Modify System Process: Launch Agent

macOS.OSAMiner has placed a Stripped Payloads with a `plist` extension in the Launch Agent's folder. (Citation: SentinelLabs reversing run-only applescripts 2021)
Enterprise T1562 .001 Impair Defenses: Disable or Modify Tools

macOS.OSAMiner has searched for the Activity Monitor process in the System Events process list and kills the process if running. macOS.OSAMiner also searches the operating system's `install.log` for apps matching its hardcoded list, killing all matching process names.(Citation: SentinelLabs reversing run-only applescripts 2021)
Enterprise T1027 .008 Obfuscated Files or Information: Stripped Payloads

macOS.OSAMiner has used run-only Applescripts, a compiled and stripped version of AppleScript, to remove human readable indicators to evade detection.(Citation: SentinelLabs reversing run-only applescripts 2021)
.009 Obfuscated Files or Information: Embedded Payloads

macOS.OSAMiner has embedded Stripped Payloads within another run-only Stripped Payloads.(Citation: SentinelLabs reversing run-only applescripts 2021)

Enterprise T1569 .001 System Services: Launchctl

macOS.OSAMiner has used `launchctl` to restart the Launch Agent.(Citation: SentinelLabs reversing run-only applescripts 2021)
Enterprise T1497 .001 Virtualization/Sandbox Evasion: System Checks

macOS.OSAMiner can parse the output of the native `system_profiler` tool to determine if the machine is running with 4 cores.(Citation: SentinelLabs reversing run-only applescripts 2021)

References

  1. Phil Stokes. (2021, January 11). FADE DEAD | Adventures in Reversing Malicious Run-Only AppleScripts. Retrieved September 29, 2022.
  2. VMRAY. (2021, January 14). Malware Analysis Spotlight: OSAMiner Uses Run-Only AppleScripts to Evade Detection. Retrieved October 4, 2022.
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