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Linux Analysis Report
boatnet.arm6.elf

Overview

General Information

Sample name:	boatnet.arm6.elf
Analysis ID:	1582856
MD5:	d35f0242168be0248c68a4d34bdac9a6
SHA1:	64403a4d9f7db8786a0f2c46a95940ee02bbbdc9
SHA256:	76d2fc43b23ec599e25b69cd0f211248a9bda75f6d3816ec484ebb568f0cdeb2
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	68
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Sample is packed with UPX

ELF contains segments with high entropy indicating compressed/encrypted content

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

Sample contains only a LOAD segment without any section mappings

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

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

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1582856
Start date and time:	2024-12-31 17:07:18 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 17s
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.arm6.elf
Detection:	MAL
Classification:	mal68.troj.evad.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/boatnet.arm6.elf
PID:	5422
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:	qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Process Tree

system is lnxubuntu20

dash New Fork (PID: 5411, Parent: 3587)

rm (PID: 5411, Parent: 3587, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.uXyZrCxzRS /tmp/tmp.g1lub2FFIj /tmp/tmp.QE8HXZdqOD

dash New Fork (PID: 5412, Parent: 3587)

rm (PID: 5412, Parent: 3587, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.uXyZrCxzRS /tmp/tmp.g1lub2FFIj /tmp/tmp.QE8HXZdqOD

boatnet.arm6.elf (PID: 5422, Parent: 5345, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/boatnet.arm6.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

Memory Dumps

Source	Rule	Description	Author	Strings
5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x120a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x120b8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x120cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x120e0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x120f4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12108:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1211c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12130:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12144:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12158:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1216c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12180:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12194:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x121a8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x121bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x121d0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x121e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x121f8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1220c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12220:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x12234:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x125fc:$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
Process Memory Space: boatnet.arm6.elf PID: 5422	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: boatnet.arm6.elf PID: 5422	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x2f2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x306:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x31a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x32e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x342:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x356:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x36a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x37e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x392:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3a6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3ba:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3ce:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3e2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3f6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x40a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x41e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x432:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x446:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x45a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x46e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x482:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: boatnet.arm6.elf PID: 5422	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0xbfa:$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
Click to see the 1 entries

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: boatnet.arm6.elf

Virustotal: Detection: 38%

Perma Link

Source: global traffic

TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: boatnet.arm6.elf

String found in binary or memory: http://upx.sf.net

Source: unknown

Network traffic detected: HTTP traffic on port 48202 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: 5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: Process Memory Space: boatnet.arm6.elf PID: 5422, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: boatnet.arm6.elf PID: 5422, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: LOAD without section mappings

Program segment: 0x8000

Source: 5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp, type: MEMORY	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: Process Memory Space: boatnet.arm6.elf PID: 5422, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: boatnet.arm6.elf PID: 5422, type: MEMORYSTR	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: mal68.troj.evad.linELF@0/0@2/0

Data Obfuscation

Sample is packed with UPX

Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $

Source: /usr/bin/dash (PID: 5411)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.uXyZrCxzRS /tmp/tmp.g1lub2FFIj /tmp/tmp.QE8HXZdqOD			Jump to behavior
Source: /usr/bin/dash (PID: 5412)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.uXyZrCxzRS /tmp/tmp.g1lub2FFIj /tmp/tmp.QE8HXZdqOD			Jump to behavior

Source: boatnet.arm6.elf

Submission file: segment LOAD with 7.9637 entropy (max. 8.0)

Source: /tmp/boatnet.arm6.elf (PID: 5422)

Queries kernel information via 'uname':

Jump to behavior

Source: boatnet.arm6.elf, 5422.1.00007fff91c90000.00007fff91cb1000.rw-.sdmp	Binary or memory string: Nxx86_64/usr/bin/qemu-arm/tmp/boatnet.arm6.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/boatnet.arm6.elf
Source: boatnet.arm6.elf, 5422.1.00005605fc635000.00005605fc7a3000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: boatnet.arm6.elf, 5422.1.00005605fc635000.00005605fc7a3000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/arm
Source: boatnet.arm6.elf, 5422.1.00007fff91c90000.00007fff91cb1000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: boatnet.arm6.elf, 5422.1.00007fff91c90000.00007fff91cb1000.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: 5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: boatnet.arm6.elf PID: 5422, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: 5422.1.00007f64e0017000.00007f64e002b000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: boatnet.arm6.elf PID: 5422, 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	11 Obfuscated Files or Information	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	1 File Deletion	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	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	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
boatnet.arm6.elf	38%	Virustotal		Browse

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	boatnet.arm6.elf	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	Flag	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse
	garm5.elf	Get hash	malicious	Unknown	Browse
	chernobyl.i586.elf	Get hash	malicious	Mirai, Gafgyt	Browse
	POWERPC.elf	Get hash	malicious	Mirai	Browse
	MIPS.elf	Get hash	malicious	Mirai	Browse
	boatnet.mips.elf	Get hash	malicious	Mirai	Browse
	boatnet.spc.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse
	dlr.ppc.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	Aqua.arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	Aqua.i686.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	Aqua.sh4.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	Aqua.mips.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	boatnet.mips.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	Aqua.m68k.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	Aqua.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.i686.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	boatnet.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	boatnet.arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	Aqua.sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42

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, EABI4 version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.961526794733702
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	boatnet.arm6.elf
File size:	35'072 bytes
MD5:	d35f0242168be0248c68a4d34bdac9a6
SHA1:	64403a4d9f7db8786a0f2c46a95940ee02bbbdc9
SHA256:	76d2fc43b23ec599e25b69cd0f211248a9bda75f6d3816ec484ebb568f0cdeb2
SHA512:	aa86fb006b041e570f677a8cb00fd20e25e72578fce0f92160255b5341d718b94105eca60d27860147cdcb40221ec0aaa9c59a912121641974f0b9a2758b0bf1
SSDEEP:	768:5H8Ca0fYXF4ccCl75IswH1aqTrvHhpYDbJUy2J1O4L9q3UELPN:ahmY14ccSiDBHopW1O4qL1
TLSH:	94F2F1F0B631AD91CB647874D53CC623BA426E74F16A603B275C498C5D9B09A3BD87C3
File Content Preview:	.ELF..............(.........4...........4. ...(.........................................8i..8...8...................Q.td............................>. NUPX!........8E..8E......S..........?.E.h;....#..$..1)...}z4+uZ..xi.cc..9.<.m ....b&\%....:U.zXSf....+..

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:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0xf5e8
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	40
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x8000	0x8000	0x87d5	0x87d5	7.9637	0x5	R E	0x8000
LOAD	0x6938	0x2e938	0x2e938	0x0	0x0	0.0000	0x6	RW	0x8000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 31, 2024 17:08:09.640130997 CET	48202	443	192.168.2.13	185.125.190.26
Dec 31, 2024 17:08:40.872014046 CET	48202	443	192.168.2.13	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 31, 2024 17:07:58.602796078 CET	39711	53	192.168.2.13	1.1.1.1
Dec 31, 2024 17:07:58.602843046 CET	58645	53	192.168.2.13	1.1.1.1
Dec 31, 2024 17:07:58.609594107 CET	53	58645	1.1.1.1	192.168.2.13
Dec 31, 2024 17:07:58.610249996 CET	53	39711	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 31, 2024 17:07:58.602796078 CET	192.168.2.13	1.1.1.1	0xaf10	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Dec 31, 2024 17:07:58.602843046 CET	192.168.2.13	1.1.1.1	0xd0ac	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 31, 2024 17:07:58.610249996 CET	1.1.1.1	192.168.2.13	0xaf10	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Dec 31, 2024 17:07:58.610249996 CET	1.1.1.1	192.168.2.13	0xaf10	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: dash PID: 5411, Parent PID: 3587

General

Start time (UTC):	16:07:51
Start date (UTC):	31/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 5411, Parent PID: 3587

General

Start time (UTC):	16:07:51
Start date (UTC):	31/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.uXyZrCxzRS /tmp/tmp.g1lub2FFIj /tmp/tmp.QE8HXZdqOD
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 5412, Parent PID: 3587

General

Start time (UTC):	16:07:51
Start date (UTC):	31/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 5412, Parent PID: 3587

General

Start time (UTC):	16:07:51
Start date (UTC):	31/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.uXyZrCxzRS /tmp/tmp.g1lub2FFIj /tmp/tmp.QE8HXZdqOD
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: boatnet.arm6.elf PID: 5422, Parent PID: 5345

General

Start time (UTC):	16:07:56
Start date (UTC):	31/12/2024
Path:	/tmp/boatnet.arm6.elf
Arguments:	/tmp/boatnet.arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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

Description:	Adversaries may 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 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 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 use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, 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 boatnet.arm6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

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

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: dash PID: 5411, Parent PID: 3587

General

Chronological Activities

Analysis Process: rm PID: 5411, Parent PID: 3587

General

Chronological Activities

Analysis Process: dash PID: 5412, Parent PID: 3587

General

Chronological Activities

Analysis Process: rm PID: 5412, Parent PID: 3587

General

Chronological Activities

Analysis Process: boatnet.arm6.elf PID: 5422, Parent PID: 5345

General

Chronological Activities

Linux Analysis Report
boatnet.arm6.elf