COINMINER_MALXMR.B-ELF64

July 16, 2018
 Analysis by: Noel Anthony Llimos
 ALIASES:

HEUR:RiskTool.Linux.BitCoinMiner.b (Kaspersky), Riskware/Miner (Fortinet)

 PLATFORM:

Linux

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Coinminer

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Coinminer arrives as a component bundled with malware/grayware packages.

  TECHNICAL DETAILS

File Size:

317,868 bytes

File Type:

ELF

Memory Resident:

Yes

Initial Samples Received Date:

20 Jun 2018

Arrival Details

This Coinminer arrives as a component bundled with malware/grayware packages.

Other Details

This Coinminer requires the following additional components to properly run:

  • {Malware Directory}\{File Name} detected as → Coinminer_MALXMR.A-BASH (Contains the details for the coin mining routine)

It does the following:

  • It modifies Cron/Crontab (Linux Script Scheduler) to execute its coin mining component and run it every time.
  • It uses the following details for its coin mining routine:
    • pool: x{BLOCKED}.{BLOCKED}pto-pool.fr:3333
    • wallet: {BLOCKED}ux9NNeTfWe8TLK2UWxCXJvNyCQtNb69YEexdNs711jEaDRXWbwaVe4vUMveKAzAiA4j8xgUi29TpKXpm3zKTUYo
  • It runs five instances of coin miner wherein it uses the following names:
    • sosmseww
    • sosmsea2
    • sosmsen2
    • sosmsek2
    • sosmset2

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.328.03

FIRST VSAPI PATTERN DATE:

20 Jun 2018

VSAPI OPR PATTERN File:

14.329.00

VSAPI OPR PATTERN Date:

21 Jun 2018

Scan your computer with your Trend Micro product to delete files detected as COINMINER_MALXMR.B-ELF64. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:


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