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Linux Analysis Report
m68k.elf

Overview

General Information

Sample name:	m68k.elf
Analysis ID:	1543573
MD5:	501bca380bcade67e4bb2f95183a5540
SHA1:	f79b66d3b9473bcecce3ed3b7a65594881c25aa4
SHA256:	5b6741ae59a154113b168a94ddf5c3e36acbc8c07c87851cef5e0ca846e13620
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Yara detected Mirai

Sample has stripped symbol table

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1543573
Start date and time:	2024-10-28 07:12:10 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 32s
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:	m68k.elf
Detection:	MAL
Classification:	mal56.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/m68k.elf
PID:	5578
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

m68k.elf (PID: 5578, Parent: 5497, MD5: cd177594338c77b895ae27c33f8f86cc) Arguments: /tmp/m68k.elf

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
m68k.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
5578.1.00007f78a8001000.00007f78a8014000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: m68k.elf	ReversingLabs: Detection: 28%
Source: m68k.elf	Virustotal: Detection: 40%			Perma Link

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.troj.linELF@0/0@0/0

Source: /tmp/m68k.elf (PID: 5578)

Queries kernel information via 'uname':

Jump to behavior

Source: m68k.elf, 5578.1.0000559c6b78b000.0000559c6b7ef000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/m68k
Source: m68k.elf, 5578.1.00007ffeaf823000.00007ffeaf844000.rw-.sdmp	Binary or memory string: b"x86_64/usr/bin/qemu-m68k/tmp/m68k.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/m68k.elf
Source: m68k.elf, 5578.1.00007ffeaf823000.00007ffeaf844000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-m68k
Source: m68k.elf, 5578.1.0000559c6b78b000.0000559c6b7ef000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/m68k

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: m68k.elf, type: SAMPLE
Source: Yara match	File source: 5578.1.00007f78a8001000.00007f78a8014000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: m68k.elf, type: SAMPLE
Source: Yara match	File source: 5578.1.00007f78a8001000.00007f78a8014000.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	Direct Volume Access	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features

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
m68k.elf	29%	ReversingLabs	Linux.Trojan.Mirai
m68k.elf	40%	Virustotal		Browse

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

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 MSB executable, Motorola m68k, 68020, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.125125915254747
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	m68k.elf
File size:	76'652 bytes
MD5:	501bca380bcade67e4bb2f95183a5540
SHA1:	f79b66d3b9473bcecce3ed3b7a65594881c25aa4
SHA256:	5b6741ae59a154113b168a94ddf5c3e36acbc8c07c87851cef5e0ca846e13620
SHA512:	0ed3f45b714d56a134ef5bb455af7ec1149b35769980dce5ed240784a7dc72f61d3e8e8ddec068b3fb3c64c8930a0d6f25fb25b6a62a4b0ad89ed8dfc6d74959
SSDEEP:	1536:uLKB+/IvMxyK98jVqmTiqQeuacWjcW0JcWcBDhcsZAO5ma4eAtRk07H5BD3jqH:uLKB+cMXgqmuqQeuacWjcW0JcWcBlcsF
TLSH:	817308D3F801DAFAF809E3374C53491A7231F6A00F671AB67367766BED79194042AE81
File Content Preview:	.ELF.......................D...4..)......4. ...(......................&y..&y..............&\|..6\|..6\|......'.........dt.Q............................NV..a....da.....N^NuNV..J9..9<f>"y..6. QJ.g.X.#...6.N."y..6. QJ.f.A.....J.g.Hy..6\|N.X.......9<N^NuNV..N^NuN

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	MC68000
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x80000144
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	76172
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	0x80000094	0x94	0x14	0x0	0x6	AX	2
.text	PROGBITS	0x800000a8	0xa8	0x110da	0x0	0x6	AX	4
.fini	PROGBITS	0x80011182	0x11182	0xe	0x0	0x6	AX	2
.rodata	PROGBITS	0x80011190	0x11190	0x14e9	0x0	0x2	A	2
.eh_frame	PROGBITS	0x8001367c	0x1267c	0x4	0x0	0x3	WA	4
.ctors	PROGBITS	0x80013680	0x12680	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x80013688	0x12688	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x80013690	0x12690	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x80013694	0x12694	0x2a8	0x0	0x3	WA	4
.bss	NOBITS	0x8001393c	0x1293c	0x2510	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x1293c	0x4d	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x80000000	0x80000000	0x12679	0x12679	6.1387	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x1267c	0x8001367c	0x8001367c	0x2c0	0x27d0	4.3193	0x6	RW	0x1000	.eh_frame .ctors .dtors .jcr .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: m68k.elf PID: 5578, Parent PID: 5497

General

Start time (UTC):	06:13:11
Start date (UTC):	28/10/2024
Path:	/tmp/m68k.elf
Arguments:	/tmp/m68k.elf
File size:	4463432 bytes
MD5 hash:	cd177594338c77b895ae27c33f8f86cc

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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Linux Analysis Report m68k.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

System Summary

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

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: m68k.elf PID: 5578, Parent PID: 5497

General

Chronological Activities

Linux Analysis Report
m68k.elf