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Linux Analysis Report
boatnet.arm5.elf

Overview

General Information

Sample name:	boatnet.arm5.elf
Analysis ID:	1665480
MD5:	ec47e766ea5f36bb3b33304c1c56727a
SHA1:	7424afec7782196f537db3c60529492365a9d361
SHA256:	efa43967908e10dcc943fa56f0ab60b6af33aa4dbef47d81d63b4abe255b1478
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

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

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

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1665480
Start date and time:	2025-04-15 15:28:25 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 41s
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.arm5.elf
Detection:	MAL
Classification:	mal60.evad.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/boatnet.arm5.elf
PID:	5456
Exit Code:	127
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

boatnet.arm5.elf (PID: 5456, Parent: 5372, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/boatnet.arm5.elf

dash New Fork (PID: 5491, Parent: 3585)

rm (PID: 5491, Parent: 3585, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.Go4KO6b4sl /tmp/tmp.Ishw5ugOQj /tmp/tmp.hFB5If1nMM

dash New Fork (PID: 5492, Parent: 3585)

cat (PID: 5492, Parent: 3585, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.Go4KO6b4sl

dash New Fork (PID: 5493, Parent: 3585)

head (PID: 5493, Parent: 3585, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5494, Parent: 3585)

tr (PID: 5494, Parent: 3585, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5495, Parent: 3585)

cut (PID: 5495, Parent: 3585, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5496, Parent: 3585)

cat (PID: 5496, Parent: 3585, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.Go4KO6b4sl

dash New Fork (PID: 5497, Parent: 3585)

head (PID: 5497, Parent: 3585, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5498, Parent: 3585)

tr (PID: 5498, Parent: 3585, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5499, Parent: 3585)

cut (PID: 5499, Parent: 3585, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5500, Parent: 3585)

rm (PID: 5500, Parent: 3585, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.Go4KO6b4sl /tmp/tmp.Ishw5ugOQj /tmp/tmp.hFB5If1nMM

cleanup

Yara Signatures

Memory Dumps

Source	Rule	Description	Author	Strings
5456.1.00007fd60c017000.00007fd60c022000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x94a4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x94b8:$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 0x94cc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x94e0:$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 0x94f4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9508:$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 0x951c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9530:$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 0x9544:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9558:$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 0x956c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9580:$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 0x9594:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x95a8:$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 0x95bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x95d0:$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 0x95e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x95f8:$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 0x960c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x9620:$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 0x9634:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: boatnet.arm5.elf PID: 5456	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x3698:$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 0x36ac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x36c0:$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 0x36d4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x36e8:$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 0x36fc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3710:$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 0x3724:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3738:$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 0x374c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3760:$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 0x3774:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3788:$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 0x379c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x37b0:$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 0x37c4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x37d8:$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 0x37ec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3800:$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 0x3814:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3828:$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

HTTP traffic detected: GET / HTTP/1.1User-Agent: wget/1.20.3-1ubuntu1 Ubuntu/20.04.2/LTS GNU/Linux/5.4.0-72-generic/x86_64 Intel(R)/Xeon(R)/Silver/4210/CPU/@/2.20GHz cloud_id/noneAccept: */*Accept-Encoding: identityHost: motd.ubuntu.comConnection: Keep-Alive

Source: boatnet.arm5.elf

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

Source: unknown	Network traffic detected: HTTP traffic on port 57224 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 57224

System Summary

Malicious sample detected (through community Yara rule)

Source: 5456.1.00007fd60c017000.00007fd60c022000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: boatnet.arm5.elf PID: 5456, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: LOAD without section mappings

Program segment: 0x8000

Source: 5456.1.00007fd60c017000.00007fd60c022000.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: Process Memory Space: boatnet.arm5.elf PID: 5456, 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: classification engine

Classification label: mal60.evad.linELF@0/0@0/0

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: 5491)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.Go4KO6b4sl /tmp/tmp.Ishw5ugOQj /tmp/tmp.hFB5If1nMM			Jump to behavior
Source: /usr/bin/dash (PID: 5500)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.Go4KO6b4sl /tmp/tmp.Ishw5ugOQj /tmp/tmp.hFB5If1nMM			Jump to behavior

Source: boatnet.arm5.elf

Submission file: segment LOAD with 7.8994 entropy (max. 8.0)

Source: /tmp/boatnet.arm5.elf (PID: 5456)

Queries kernel information via 'uname':

Jump to behavior

Source: boatnet.arm5.elf, 5456.1.000055f521202000.000055f5213b0000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: boatnet.arm5.elf, 5456.1.000055f521202000.000055f5213b0000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: boatnet.arm5.elf, 5456.1.00007ffc425f0000.00007ffc42611000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: boatnet.arm5.elf, 5456.1.00007ffc425f0000.00007ffc42611000.rw-.sdmp	Binary or memory string: W'x86_64/usr/bin/qemu-arm/tmp/boatnet.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/boatnet.arm5.elf

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
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	1 Ingress Tool Transfer	Traffic Duplication	Data Destruction

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.arm5.elf	33%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
https://motd.ubuntu.com/	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	boatnet.arm5.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
54.247.62.1	unknown	United States		16509	AMAZON-02US	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
54.247.62.1	Space.spc.elf	Get hash	malicious	Mirai	Browse
	Space.arm5.elf	Get hash	malicious	Unknown	Browse
	Space.m68k.elf	Get hash	malicious	Mirai	Browse
	boatnet.mips.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm6.elf	Get hash	malicious	Mirai	Browse
	i686.elf	Get hash	malicious	Aquabot	Browse
	linpeas.sh	Get hash	malicious	Unknown	Browse
	hidakibest.arm7.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AMAZON-02US	https://esco.blcges.com	Get hash	malicious	Unknown	Browse	3.5.216.59
	sshd.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	https://esco.blcges.com	Get hash	malicious	Unknown	Browse	3.5.217.39
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	34.249.145.219
	Complete via DocuSign_ #Dailycer_Doc. Signature required 4_14_2025.eml	Get hash	malicious	HTMLPhisher	Browse	3.161.136.24
	na.elf	Get hash	malicious	Prometei	Browse	52.11.240.239
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	52.11.240.239
	xd.x86_64.elf	Get hash	malicious	Mirai	Browse	18.223.79.212
	xd.mpsl.elf	Get hash	malicious	Mirai	Browse	13.212.1.215

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, no section header
Entropy (8bit):	7.895055759470668
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	boatnet.arm5.elf
File size:	19'216 bytes
MD5:	ec47e766ea5f36bb3b33304c1c56727a
SHA1:	7424afec7782196f537db3c60529492365a9d361
SHA256:	efa43967908e10dcc943fa56f0ab60b6af33aa4dbef47d81d63b4abe255b1478
SHA512:	2e3a142599d7ecf51f07c90cfa19123fafd98a64bf3d896339edf29693484b94a577de96bb1429daa6305704170e9797b804a1a7898c1257b9188ba0b625e57f
SSDEEP:	384:vVHAc8ZQkj35pT5W+NAbdpFMG0MngM3gjAhymdGUop5hu9:vVHIRjL5WvJMv/M3AAs3UozM9
TLSH:	4A82D094B1C62A71CE709835A6FD8B4E73C39BBCE0D73356204563A4FBC685886FA109
File Content Preview:	.ELF...a..........(.........4...........4. ...(......................I...I...............c..........................Q.td..............................CvUPX!....................r..........?.E.h;.}...^.......#3.......M".XH.......&.x...NB.G...b..Q0.x\.......

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:	0xb7e8
Flags:	0x2
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

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x8000	0x8000	0x4997	0x4997	7.8994	0x5	R E	0x8000
LOAD	0x63f8	0x1e3f8	0x1e3f8	0x0	0x0	0.0000	0x6	RW	0x8000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 15, 2025 15:29:47.448276043 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:47.448304892 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:47.449331999 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:47.449331999 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:47.449363947 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.397089958 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.397259951 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.397584915 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.397594929 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.398919106 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.398988008 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.399772882 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.399863958 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.400271893 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.400284052 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.401053905 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.630920887 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.631071091 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.631304026 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.631647110 CEST	57224	443	192.168.2.13	54.247.62.1
Apr 15, 2025 15:29:54.631666899 CEST	443	57224	54.247.62.1	192.168.2.13
Apr 15, 2025 15:29:54.631726027 CEST	57224	443	192.168.2.13	54.247.62.1

Timestamp	Bytes transferred	Direction	Data
2025-04-15 13:29:54 UTC	249	OUT	GET / HTTP/1.1 User-Agent: wget/1.20.3-1ubuntu1 Ubuntu/20.04.2/LTS GNU/Linux/5.4.0-72-generic/x86_64 Intel(R)/Xeon(R)/Silver/4210/CPU/@/2.20GHz cloud_id/none Accept: / Accept-Encoding: identity Host: motd.ubuntu.com Connection: Keep-Alive
2025-04-15 13:29:54 UTC	271	IN	HTTP/1.1 200 OK Date: Tue, 15 Apr 2025 13:29:54 GMT Server: Apache/2.4.18 (Ubuntu) Last-Modified: Tue, 01 Apr 2025 23:01:00 GMT ETag: "d8-631bf82a3c95e" Accept-Ranges: bytes Content-Length: 216 Vary: Accept-Encoding Connection: close Content-Type: text/plain
2025-04-15 13:29:54 UTC	216	IN	Data Raw: 20 2a 20 53 74 72 69 63 74 6c 79 20 63 6f 6e 66 69 6e 65 64 20 4b 75 62 65 72 6e 65 74 65 73 20 6d 61 6b 65 73 20 65 64 67 65 20 61 6e 64 20 49 6f 54 20 73 65 63 75 72 65 2e 20 4c 65 61 72 6e 20 68 6f 77 20 4d 69 63 72 6f 4b 38 73 0a 20 20 20 6a 75 73 74 20 72 61 69 73 65 64 20 74 68 65 20 62 61 72 20 66 6f 72 20 65 61 73 79 2c 20 72 65 73 69 6c 69 65 6e 74 20 61 6e 64 20 73 65 63 75 72 65 20 4b 38 73 20 63 6c 75 73 74 65 72 20 64 65 70 6c 6f 79 6d 65 6e 74 2e 0a 0a 20 20 20 68 74 74 70 73 3a 2f 2f 75 62 75 6e 74 75 2e 63 6f 6d 2f 65 6e 67 61 67 65 2f 73 65 63 75 72 65 2d 6b 75 62 65 72 6e 65 74 65 73 2d 61 74 2d 74 68 65 2d 65 64 67 65 0a Data Ascii: * Strictly confined Kubernetes makes edge and IoT secure. Learn how MicroK8s just raised the bar for easy, resilient and secure K8s cluster deployment. https://ubuntu.com/engage/secure-kubernetes-at-the-edge

Start time (UTC):	13:29:20
Start date (UTC):	15/04/2025
Path:	/tmp/boatnet.arm5.elf
Arguments:	/tmp/boatnet.arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Start time (UTC):	13:29:53
Start date (UTC):	15/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

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

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external adversary-controlled system to the victim network through the command and control channel or through alternate protocols such as ftp . Once present, adversaries may also transfer/spread tools between victim devices within a compromised environment (i.e. Lateral Tool Transfer ).
Tactics:	Command and Control
Data Sources:	Command: Command Execution, File: File Creation, Network Traffic: Network Connection Creation, 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.arm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

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

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

Contacted URLs

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

HTTP Request Dependency Graph

HTTPS Proxied Packets

System Behavior

Analysis Process: boatnet.arm5.elf PID: 5456, Parent PID: 5372

General

Chronological Activities

Analysis Process: dash PID: 5491, Parent PID: 3585

General

Chronological Activities

Analysis Process: rm PID: 5491, Parent PID: 3585

General

Chronological Activities

Analysis Process: dash PID: 5492, Parent PID: 3585

General

Chronological Activities

Analysis Process: cat PID: 5492, Parent PID: 3585

General

Chronological Activities

Analysis Process: dash PID: 5493, Parent PID: 3585

General

Chronological Activities

Analysis Process: head PID: 5493, Parent PID: 3585

General

Chronological Activities

Linux Analysis Report
boatnet.arm5.elf