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Linux Analysis Report
xmrig.elf

Overview

General Information

Sample name:	xmrig.elf
Analysis ID:	1671981
MD5:	0e3a6b255c802ff339ba3b0bf8a95264
SHA1:	7165ea74c5a3ed4730e1d02d6cd7b479aae8a903
SHA256:	faa848ccb64ac0eada268f9af9e2f039afdf677129473ced2e8b02ff174319b9
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	72
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample reads /proc/mounts (often used for finding a writable filesystem)

Stdout / stderr contain strings indicative of a mining client

Creates hidden files and/or directories

ELF contains segments with high entropy indicating compressed/encrypted content

Reads CPU information from /proc indicative of miner or evasive malware

Reads CPU information from /sys indicative of miner or evasive malware

Reads system information from the proc file system

Sample contains only a LOAD segment without any section mappings

Uses the "uname" system call to query kernel version information (possible evasion)

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1671981
Start date and time:	2025-04-23 13:42:41 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 19s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	xmrig.elf
Detection:	MAL
Classification:	mal72.troj.mine.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/xmrig.elf
PID:	5533
Exit Code:	2
Exit Code Info:
Killed:	False
Standard Output:	[2025-04-23 06:43:25.963] unable to open "/tmp/config.json". [2025-04-23 06:43:25.966] unable to open "/root/.xmrig.json". [2025-04-23 06:43:25.967] unable to open "/root/.config/xmrig.json". [2025-04-23 06:43:25.968] no valid configuration found, try https://xmrig.com/wizard
Standard Error:

Process Tree

system is lnxubuntu20

xmrig.elf (PID: 5533, Parent: 5450, MD5: 0e3a6b255c802ff339ba3b0bf8a95264) Arguments: /tmp/xmrig.elf

cleanup

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
5533.1.0000000000401000.00000000009cb000.r-x.sdmp	Linux_Trojan_Pornoasset_927f314f	unknown	unknown	0x2088d8:$a: C3 D3 CB D3 C3 48 31 C3 48 0F AF F0 48 0F AF F0 48 0F AF F0 48

Joe Sandbox Signatures

• AV Detection
• Bitcoin Miner
• Networking
• System Summary
• Persistence and Installation Behavior
• Hooking and other Techniques for Hiding and Protection
• Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: xmrig.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: xmrig.elf	Virustotal: Detection: 48%			Perma Link
Source: xmrig.elf	ReversingLabs: Detection: 41%

Bitcoin Miner

Stdout / stderr contain strings indicative of a mining client

Source: /tmp/xmrig.elf

Stdout: xmrig

Source: /tmp/xmrig.elf (PID: 5533)

Reads CPU info from proc file: /proc/cpuinfo

Jump to behavior

Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/online	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/core_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/core_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/die_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/package_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/physical_package_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/core_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/core_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/die_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/package_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/physical_package_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/possible	Jump to behavior

Source: xmrig.elf, 5533.1.00007ffdaef9f000.00007ffdaefd3000.rw-.sdmp

String found in binary or memory: https://xmrig.com/wizard

System Summary

Malicious sample detected (through community Yara rule)

Source: 5533.1.0000000000401000.00000000009cb000.r-x.sdmp, type: MEMORY

Matched rule: Linux_Trojan_Pornoasset_927f314f Author: unknown

Source: LOAD without section mappings

Program segment: 0x400000

Source: 5533.1.0000000000401000.00000000009cb000.r-x.sdmp, type: MEMORY

Matched rule: Linux_Trojan_Pornoasset_927f314f reference_sample = d653598df857535c354ba21d96358d4767d6ada137ee32ce5eb4972363b35f93, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Pornoasset, fingerprint = 7214d3132fc606482e3f6236d291082a3abc0359c80255048045dba6e60ec7bf, id = 927f314f-2cbb-4f87-b75c-9aa5ef758599, last_modified = 2021-09-16

Source: classification engine

Classification label: mal72.troj.mine.linELF@0/0@0/0

Persistence and Installation Behavior

Sample reads /proc/mounts (often used for finding a writable filesystem)

Source: /tmp/xmrig.elf (PID: 5533)

File: /proc/5533/mounts

Jump to behavior

Source: /tmp/xmrig.elf (PID: 5533)

Directory: /root/.xmrig.json

Jump to behavior

Source: /tmp/xmrig.elf (PID: 5533)	Reads from proc file: /proc/cpuinfo			Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads from proc file: /proc/meminfo			Jump to behavior

Source: xmrig.elf	Submission file: segment LOAD with 7.8138 entropy (max. 8.0)
Source: xmrig.elf	Submission file: segment LOAD with 7.9999 entropy (max. 8.0)

Source: /tmp/xmrig.elf (PID: 5533)

Reads CPU info from proc file: /proc/cpuinfo

Jump to behavior

Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/online	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/core_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/core_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/die_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/package_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/topology/physical_package_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index0/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index1/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index2/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu0/cache/index3/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/core_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/core_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/die_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/package_cpus	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/topology/physical_package_id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index0/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index1/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index2/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/shared_cpu_map	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/level	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/type	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/id	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/coherency_line_size	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/number_of_sets	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/cpu1/cache/index3/physical_line_partition	Jump to behavior
Source: /tmp/xmrig.elf (PID: 5533)	Reads CPU info from /sys: /sys/devices/system/cpu/possible	Jump to behavior

Source: /tmp/xmrig.elf (PID: 5533)

Queries kernel information via 'uname':

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	1 Hidden Files and Directories	OS Credential Dumping	1 Security Software Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 Obfuscated Files or Information	LSASS Memory	1 File and Directory Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	3 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
xmrig.elf	48%	Virustotal		Browse
xmrig.elf	42%	ReversingLabs	Linux.Coinminer.Generic
xmrig.elf	100%	Avira	PUA/AVI.CoinMiner.krkbf

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
https://xmrig.com/wizard	xmrig.elf, 5533.1.00007ffdaef9f000.00007ffdaefd3000.rw-.sdmp	false		high

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, no section header
Entropy (8bit):	7.999910803804033
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	xmrig.elf
File size:	2'429'396 bytes
MD5:	0e3a6b255c802ff339ba3b0bf8a95264
SHA1:	7165ea74c5a3ed4730e1d02d6cd7b479aae8a903
SHA256:	faa848ccb64ac0eada268f9af9e2f039afdf677129473ced2e8b02ff174319b9
SHA512:	1110cdf0982384b23f91ed90bd0f9ab024b7e239368e93e2fae175169b20ffd25dfdad4abe3c3eaf6d15bf242026114fa44fb36bb1e315748aa32717ff315551
SSDEEP:	49152:Q+Jw73YybiB9xot2ZiNLMKmrPG7aAhwfeApaurTCHK:Q37d4WuiCXPFNfDpaurTiK
TLSH:	D1B5336A71B93128EC7B7D3037835BB23A57D4D2B6381E41BF0AB46B707672A1C24D91
File Content Preview:	.ELF..............>.............@...................@.8...........................@.......@.............x................................ ....... ........%.......%.............Q.td......................................................(v1wom ........l~...\

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Advanced Micro Devices X86-64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0xed1d88
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	0
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x400000	0x400000	0x1000	0x881078	7.8138	0x6	RW	0x1000
LOAD	0x0	0xc82000	0xc82000	0x250f9f	0x250f9f	7.9999	0x5	R E	0x1000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x10

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: xmrig.elf PID: 5533, Parent PID: 5450

General

Start time (UTC):	11:43:25
Start date (UTC):	23/04/2025
Path:	/tmp/xmrig.elf
Arguments:	/tmp/xmrig.elf
File size:	2429396 bytes
MD5 hash:	0e3a6b255c802ff339ba3b0bf8a95264

Description:	Adversaries may set files and directories to be hidden to evade detection mechanisms. To prevent normal users from accidentally changing special files on a system, most operating systems have the concept of a ‘hidden’ file. These files don’t show up when a user browses the file system with a GUI or when using normal commands on the command line. Users must explicitly ask to show the hidden files either via a series of Graphical User Interface (GUI) prompts or with command line switches ( `dir /a` for Windows and `ls –a` for Linux and macOS).
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report xmrig.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Bitcoin Miner

Networking

System Summary

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

System Behavior

Analysis Process: xmrig.elf PID: 5533, Parent PID: 5450

General

File Activities

File Opened

File Read

Directory Enumerated

System Activities

Query System Information (uname)

Chronological Activities

Linux Analysis Report
xmrig.elf