Edit tour

Linux Analysis Report
arm.elf

Overview

General Information

Sample name:	arm.elf
Analysis ID:	1644794
MD5:	08e536f7f30cb7ddb5346e0015346222
SHA1:	6ccba637c8ee7820be537c4d14f35cf015d54453
SHA256:	5681f7a57356b2898d90618b5c3791e4ced8fc86fded06805c346615fd1dfac6
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	60
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

Yara detected Mirai

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

Enumerates processes within the "proc" file system

Executes the "rm" command used to delete files or directories

Sample has stripped symbol table

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1644794
Start date and time:	2025-03-21 00:34:17 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 55s
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:	arm.elf
Detection:	MAL
Classification:	mal60.troj.linELF@0/3@0/0

Warnings

VT rate limit hit for: https://motd.ubuntu.comhe

Runtime Messages

Command:	/tmp/arm.elf
PID:	6230
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	For God so loved the world
Standard Error:

Process Tree

system is lnxubuntu20

arm.elf (PID: 6230, Parent: 6155, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm.elf

arm.elf New Fork (PID: 6233, Parent: 6230)

dash New Fork (PID: 6306, Parent: 4331)

rm (PID: 6306, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.O2BilyoeyQ /tmp/tmp.eYbtl9VSJr /tmp/tmp.z2cxVGnfhP

dash New Fork (PID: 6307, Parent: 4331)

rm (PID: 6307, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.O2BilyoeyQ /tmp/tmp.eYbtl9VSJr /tmp/tmp.z2cxVGnfhP

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Mirai	Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.	No Attribution	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
arm.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
6233.1.00007fb834017000.00007fb83409b000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6230.1.00007fb834017000.00007fb83409b000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: arm.elf	Virustotal: Detection: 19%			Perma Link
Source: arm.elf	ReversingLabs: Detection: 13%

Source: /tmp/arm.elf (PID: 6233)

Socket: 127.0.0.1:22448

Jump to behavior

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219

Source: arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	String found in binary or memory: http://17365637265742070617373776F7264206D656D6F721/t/wget.sh
Source: arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	String found in binary or memory: https://motd.ubuntu.com
Source: arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	String found in binary or memory: https://motd.ubuntu.comhe

Source: unknown	Network traffic detected: HTTP traffic on port 39270 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39270
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/arm.elf (PID: 6230)	SIGKILL sent: pid: 1 (init), result: successful	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	SIGKILL sent: pid: 1335, result: successful	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	SIGKILL sent: pid: 1872, result: successful	Jump to behavior

Source: classification engine

Classification label: mal60.troj.linELF@0/3@0/0

Persistence and Installation Behavior

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

Source: /tmp/arm.elf (PID: 6230)

File: /proc/6230/mounts

Jump to behavior

Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1582/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/3088/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/230/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/232/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1579/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1699/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/234/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1335/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1698/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1334/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1576/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/2302/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/236/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/237/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/910/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/912/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/2307/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/918/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1594/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1349/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1344/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1465/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1586/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/248/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/249/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1463/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/9/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/801/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/20/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/21/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1900/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/22/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/23/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/24/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/25/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/26/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/27/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/28/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/29/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/491/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/250/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/130/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/251/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/252/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/132/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/253/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/254/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/255/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/4509/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/256/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1599/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/257/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1477/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/379/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/258/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1476/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/259/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1475/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/4501/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/936/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/30/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/2208/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/4506/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/35/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1809/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6230)	File opened: /proc/1494/cmdline	Jump to behavior

Source: /usr/bin/dash (PID: 6306)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.O2BilyoeyQ /tmp/tmp.eYbtl9VSJr /tmp/tmp.z2cxVGnfhP			Jump to behavior
Source: /usr/bin/dash (PID: 6307)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.O2BilyoeyQ /tmp/tmp.eYbtl9VSJr /tmp/tmp.z2cxVGnfhP			Jump to behavior

Source: /tmp/arm.elf (PID: 6230)

Queries kernel information via 'uname':

Jump to behavior

Source: arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	Binary or memory string: vmwarem
Source: arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	Binary or memory string: vmware
Source: arm.elf, 6230.1.000055eac756a000.000055eac76da000.rw-.sdmp, arm.elf, 6233.1.000055eac756a000.000055eac76da000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	Binary or memory string: qemu-arm
Source: arm.elf, 6230.1.00007ffc97731000.00007ffc97752000.rw-.sdmp, arm.elf, 6233.1.00007ffc97731000.00007ffc97752000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/arm.elf
Source: arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	Binary or memory string: qemu-arm)Zm6vnZ5U4mf8vApyWcDwXR44ZAkzslsN)
Source: arm.elf, 6230.1.000055eac756a000.000055eac76da000.rw-.sdmp, arm.elf, 6233.1.000055eac756a000.000055eac76da000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm.elf, 6230.1.00007ffc97731000.00007ffc97752000.rw-.sdmp, arm.elf, 6233.1.00007ffc97731000.00007ffc97752000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm.elf, 6230.1.00007ffc97731000.00007ffc97752000.rw-.sdmp	Binary or memory string: U/tmp/qemu-open.GaK5Mh:
Source: arm.elf, 6230.1.00007ffc97731000.00007ffc97752000.rw-.sdmp	Binary or memory string: /tmp/qemu-open.GaK5Mh
Source: arm.elf, 6233.1.00007ffc97731000.00007ffc97752000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: arm.elf, type: SAMPLE
Source: Yara match	File source: 6233.1.00007fb834017000.00007fb83409b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6230.1.00007fb834017000.00007fb83409b000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: arm.elf, type: SAMPLE
Source: Yara match	File source: 6233.1.00007fb834017000.00007fb83409b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6230.1.00007fb834017000.00007fb83409b000.r-x.sdmp, type: MEMORY

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 File Deletion	1 OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	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	Rootkit	LSASS Memory	1 File and Directory Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
arm.elf	19%	Virustotal		Browse
arm.elf	14%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
https://motd.ubuntu.comhe	0%	Avira URL Cloud	safe

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
https://motd.ubuntu.com	arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	false		high
https://motd.ubuntu.comhe	arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	false	Avira URL Cloud: safe	unknown
http://17365637265742070617373776F7264206D656D6F721/t/wget.sh	arm.elf, 6230.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp, arm.elf, 6233.1.00007fb8340a7000.00007fb8340b2000.rw-.sdmp	false		high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	na.elf	Get hash	malicious	Prometei	Browse
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	linux_mips64.elf	Get hash	malicious	Chaos	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.mips.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	na.elf	Get hash	malicious	Prometei	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	linux_386.elf	Get hash	malicious	Chaos	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse
	linux_arm7.elf	Get hash	malicious	Chaos	Browse
	linux_mips.elf	Get hash	malicious	Chaos	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	eehah4.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	linux_386.elf	Get hash	malicious	Chaos	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse
	linux_arm7.elf	Get hash	malicious	Chaos	Browse
	linux_mips.elf	Get hash	malicious	Chaos	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	eehah4.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_386.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_arm7.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_mips.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	eehah4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_386.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_arm7.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_mips.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	eehah4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	linux_386.elf	Get hash	malicious	Chaos	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse	109.202.202.202
	linux_arm7.elf	Get hash	malicious	Chaos	Browse	109.202.202.202
	linux_mips.elf	Get hash	malicious	Chaos	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	eehah4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
AMAZON-02US	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	Garmin GameOn - Installer.exe	Get hash	malicious	Unknown	Browse	13.226.34.91
	Garmin GameOn - Installer.exe	Get hash	malicious	Unknown	Browse	13.226.34.64
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	eehah4.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	54.171.230.55
	linux_mips64.elf	Get hash	malicious	Chaos	Browse	34.249.145.219
	linux_arm5.elf	Get hash	malicious	Chaos	Browse	54.171.230.55

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.97pE5h (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

/tmp/qemu-open.GaK5Mh (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

/tmp/qemu-open.Gi0DIh (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), dynamically linked, stripped
Entropy (8bit):	6.335133111119
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm.elf
File size:	556'108 bytes
MD5:	08e536f7f30cb7ddb5346e0015346222
SHA1:	6ccba637c8ee7820be537c4d14f35cf015d54453
SHA256:	5681f7a57356b2898d90618b5c3791e4ced8fc86fded06805c346615fd1dfac6
SHA512:	c75eae2407643fa11da2a35a53fb0ea3936d4bac443db2d9d0c7c3eab36780f5c8027d0a2a41792526512eae30fd199cb82429728ed0343c7d8c8afff2a7dc7d
SSDEEP:	12288:/LemydU+z4d61nZQcES3jNc/zuEBrUeruJbgD69PQjlMjVvxBhVF+:/LC1ZESHXxg4
TLSH:	96C44A55B8419B92C2C06BBBFF5D834873271778D2EEB0069C199B642AEFC1B0F76542
File Content Preview:	.ELF...a..........(.........4...lz......4. ...(......................?...?...............@...@...@...:....................................................-...L."...?...........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8190
Flags:	0x202
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	555628
Section Header Size:	40
Number of Section Headers:	12
Header String Table Index:	11

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x18	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x74934	0x0	0x6	AX	16
.fini	PROGBITS	0x7c9e4	0x749e4	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x7c9f8	0x749f8	0xf524	0x0	0x2	A	4
.ctors	PROGBITS	0x94004	0x84004	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x9400c	0x8400c	0x8	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x94018	0x84018	0x35e8	0x0	0x3	WA	4
.got	PROGBITS	0x97600	0x87600	0x80	0x4	0x3	WA	4
.data	PROGBITS	0x97680	0x87680	0x39c	0x0	0x3	WA	4
.bss	NOBITS	0x97a1c	0x87a1c	0x6ef4	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x87a1c	0x50	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x83f1c	0x83f1c	6.3628	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x84004	0x94004	0x94004	0x3a18	0xa90c	4.1618	0x6	RW	0x8000	.ctors .dtors .data.rel.ro .got .data .bss
DYNAMIC	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 11
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 21, 2025 00:35:06.060213089 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 00:35:11.691323996 CET	42836	443	192.168.2.23	91.189.91.43
Mar 21, 2025 00:35:12.459201097 CET	42516	80	192.168.2.23	109.202.202.202
Mar 21, 2025 00:35:24.556324959 CET	39270	443	192.168.2.23	34.249.145.219
Mar 21, 2025 00:35:24.556421995 CET	443	39270	34.249.145.219	192.168.2.23
Mar 21, 2025 00:35:24.556708097 CET	39270	443	192.168.2.23	34.249.145.219
Mar 21, 2025 00:35:24.557578087 CET	39270	443	192.168.2.23	34.249.145.219
Mar 21, 2025 00:35:24.557617903 CET	443	39270	34.249.145.219	192.168.2.23
Mar 21, 2025 00:35:27.561508894 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 00:35:37.800031900 CET	42836	443	192.168.2.23	91.189.91.43
Mar 21, 2025 00:35:41.895418882 CET	42516	80	192.168.2.23	109.202.202.202
Mar 21, 2025 00:36:08.516223907 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 00:36:24.549712896 CET	39270	443	192.168.2.23	34.249.145.219
Mar 21, 2025 00:36:24.592406988 CET	443	39270	34.249.145.219	192.168.2.23
Mar 21, 2025 00:37:14.050019979 CET	443	39270	34.249.145.219	192.168.2.23

System Behavior

Analysis Process: arm.elf PID: 6230, Parent PID: 6155

General

Start time (UTC):	23:35:07
Start date (UTC):	20/03/2025
Path:	/tmp/arm.elf
Arguments:	/tmp/arm.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Signal Sent

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: arm.elf PID: 6233, Parent PID: 6230

General

Start time (UTC):	23:35:10
Start date (UTC):	20/03/2025
Path:	/tmp/arm.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

Process Activities

Signal Sent

Thread Sleep

Network Activities

Socket Listening

Chronological Activities

Analysis Process: dash PID: 6306, Parent PID: 4331

General

Start time (UTC):	23:36:24
Start date (UTC):	20/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6306, Parent PID: 4331

General

Start time (UTC):	23:36:24
Start date (UTC):	20/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.O2BilyoeyQ /tmp/tmp.eYbtl9VSJr /tmp/tmp.z2cxVGnfhP
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6307, Parent PID: 4331

General

Start time (UTC):	23:36:24
Start date (UTC):	20/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6307, Parent PID: 4331

General

Start time (UTC):	23:36:24
Start date (UTC):	20/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.O2BilyoeyQ /tmp/tmp.eYbtl9VSJr /tmp/tmp.z2cxVGnfhP
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	Active Directory: Active Directory Object Access, Command: Command Execution, File: File Access, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow, Process: OS API Execution, Process: Process Access, Process: Process Creation, Windows Registry: Windows Registry Key Access
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:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report arm.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

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

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.97pE5h (deleted)

/tmp/qemu-open.GaK5Mh (deleted)

/tmp/qemu-open.Gi0DIh (deleted)

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: arm.elf PID: 6230, Parent PID: 6155

General

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Signal Sent

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Linux Analysis Report
arm.elf