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Linux Analysis Report
Yboats.i686.elf

Overview

General Information

Sample name:	Yboats.i686.elf
Analysis ID:	1594273
MD5:	fa9b901cac092ecb81d7def3f4ad5141
SHA1:	fbfa02a055dbfcdcd3aff9e1f804b7c8b201b0e1
SHA256:	cb2b60f026e826ab11dea79441c40b3614e7ffcbd11f9aa8144931a457831e7d
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai, Okiru

Score:	100
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Yara detected Okiru

Machine Learning detection for sample

Sample deletes itself

Sample is packed with UPX

ELF contains segments with high entropy indicating compressed/encrypted content

Sample contains only a LOAD segment without any section mappings

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

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1594273
Start date and time:	2025-01-18 18:01:17 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 31s
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:	Yboats.i686.elf
Detection:	MAL
Classification:	mal100.troj.evad.linELF@0/0@2/0

Warnings

VT rate limit hit for: http://159.223.45.59/Yboats.arm7;chmod
VT rate limit hit for: http://159.223.45.59/Yboats.mpsl;chmod
VT rate limit hit for: http://159.223.45.59/Yboats.x86
VT rate limit hit for: http://159.223.45.59/adb;
VT rate limit hit for: http://159.223.45.59/comtrend%20-O%20-%3E%20/tmp/jno;sh%20/tmp/jno%27/&sessionKey=1039230114
VT rate limit hit for: http://159.223.45.59/gpon443

Runtime Messages

Command:	/tmp/Yboats.i686.elf
PID:	5498
Exit Code:	136
Exit Code Info:	SIGFPE (8) Floating-point exception
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

Yboats.i686.elf (PID: 5498, Parent: 5416, MD5: fa9b901cac092ecb81d7def3f4ad5141) Arguments: /tmp/Yboats.i686.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
5498.1.0000000008048000.0000000008065000.r-x.sdmp	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
5498.1.0000000008048000.0000000008065000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5498.1.0000000008048000.0000000008065000.r-x.sdmp	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
5498.1.0000000008048000.0000000008065000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_268aac0b	unknown	unknown	0x20ef:$a: 24 18 0F B7 44 24 20 8B 54 24 1C 83 F9 01 8B 7E 0C 89 04 24 8B
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_0cb1699c	unknown	unknown	0x20a2:$a: DB 8B 4C 24 0C 8B 54 24 08 83 F9 01 76 10 0F B7 02 83 E9 02 83
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_c8385b81	unknown	unknown	0xd2cc:$a: 8D 74 26 00 89 C2 83 ED 04 C1 E2 0B 31 C2 89 F0 C1 E8 13 89 D1
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_70ef58f1	unknown	unknown	0x1073d:$a: 89 D0 8B 19 01 D8 0F B6 5C 24 10 30 18 89 D0 8B 19 01 D8 0F B6 5C 0x107bd:$a: 89 D0 8B 19 01 D8 0F B6 5C 24 10 30 18 89 D0 8B 19 01 D8 0F B6 5C
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_3a85a418	unknown	unknown	0x2847:$a: 01 D8 66 C1 C8 08 C1 C8 10 66 C1 C8 08 66 83 7C 24 2C FF 89
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_2e3f67a9	unknown	unknown	0x1c32:$a: 53 83 EC 04 0F B6 74 24 14 8B 5C 24 18 8B 7C 24 20 0F B6 44 0x1c92:$a: 53 83 EC 04 0F B6 74 24 14 8B 5C 24 18 8B 7C 24 20 0F B6 44
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_0d73971c	unknown	unknown	0xd3d2:$a: 89 C2 83 EB 04 C1 E2 0B 31 C2 89 F0 C1 E8 13 89 D1 31 F0 C1
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_88de437f	unknown	unknown	0x132c2:$a: 24 08 8B 4C 24 04 85 D2 74 0D 31 C0 89 F6 C6 04 08 00 40 39 D0
5498.1.0000000008048000.0000000008065000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x15ad8:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
5498.1.0000000008048000.0000000008065000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_1	Detects ELF Mirai variant	Florian Roth	0x19c7d:$x2: /bin/busybox chmod 777 * /tmp/ 0x199e8:$s1: POST /ctrlt/DeviceUpgrade_1 HTTP/1.1
Process Memory Space: Yboats.i686.elf PID: 5498	JoeSecurity_Okiru	Yara detected Okiru	Joe Security
Process Memory Space: Yboats.i686.elf PID: 5498	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
Process Memory Space: Yboats.i686.elf PID: 5498	JoeSecurity_Mirai_3	Yara detected Mirai	Joe Security
Process Memory Space: Yboats.i686.elf PID: 5498	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Click to see the 13 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Data Obfuscation
• Hooking and other Techniques for Hiding and Protection
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: Yboats.i686.elf	ReversingLabs: Detection: 44%
Source: Yboats.i686.elf	Virustotal: Detection: 40%			Perma Link

Machine Learning detection for sample

Source: Yboats.i686.elf

Joe Sandbox ML: detected

Source: global traffic

TCP traffic: 192.168.2.14:46540 -> 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: global traffic

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

Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/Yboats.arm7;chmod
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/Yboats.mips
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/Yboats.mips;
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/Yboats.mpsl;chmod
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/Yboats.x86
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/adb;
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/comtrend%20-O%20-%3E%20/tmp/jno;sh%20/tmp/jno%27/&sessionKey=1039230114
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://159.223.45.59/gpon443
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://purenetworks.com/HNAP1/
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: Yboats.i686.elf	String found in binary or memory: http://upx.sf.net

Source: unknown

Network traffic detected: HTTP traffic on port 46540 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_268aac0b Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0cb1699c Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_c8385b81 Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_70ef58f1 Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_3a85a418 Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_2e3f67a9 Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0d73971c Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF Mirai variant Author: Florian Roth

Source: LOAD without section mappings

Program segment: 0x8048000

Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_268aac0b reference_sample = 49c94d184d7e387c3efe34ae6f021e011c3046ae631c9733ab0a230d5fe28ead, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 9c581721bf82af7dc6482a2c41af5fb3404e01c82545c7b2b29230f707014781, id = 268aac0b-c5c7-4035-8381-4e182de91e32, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0cb1699c reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6e44c68bba8c9fb53ac85080b9ad765579f027cabfea5055a0bb3a85b8671089, id = 0cb1699c-9a08-4885-aa7f-0f1ee2543cac, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_c8385b81 reference_sample = 3d27736caccdd3199a14ce29d91b1812d1d597a4fa8472698e6df6ef716f5ce9, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = dfdbd4dbfe16bcf779adb16352d5e57e3950e449e96c10bf33a91efee7c085e5, id = c8385b81-0f5b-41c3-94bb-265ede946a84, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_70ef58f1 reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c46eac9185e5f396456004d1e0c42b54a9318e0450f797c55703122cfb8fea89, id = 70ef58f1-ac74-4e33-ae03-e68d1d5a4379, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_3a85a418 reference_sample = 86a43b39b157f47ab12e9dc1013b4eec0e1792092d4cef2772a21a9bf4fc518a, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 554aff5770bfe8fdeae94f5f5a0fd7f7786340a95633433d8e686af1c25b8cec, id = 3a85a418-2bd9-445a-86cb-657ca7edf566, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_2e3f67a9 reference_sample = fc8741f67f39e7409ab2c6c62d4f9acdd168d3e53cf6976dd87501833771cacb, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 6a06815f3d2e5f1a7a67f4264953dbb2e9d14e5f3486b178da845eab5b922d4f, id = 2e3f67a9-6fd5-4457-a626-3a9015bdb401, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_0d73971c reference_sample = 49c94d184d7e387c3efe34ae6f021e011c3046ae631c9733ab0a230d5fe28ead, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 95279bc45936ca867efb30040354c8ff81de31dccda051cfd40b4fb268c228c5, id = 0d73971c-4253-4e7d-b1e1-20b031197f9e, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_1 date = 2018-10-27, hash1 = 3be2d250a3922aa3f784e232ce13135f587ac713b55da72ef844d64a508ddcfe, author = Florian Roth, description = Detects ELF Mirai variant, reference = Internal Research

Source: classification engine

Classification label: mal100.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 3.95 Copyright (C) 1996-2018 the UPX Team. All Rights Reserved. $

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/Yboats.i686.elf (PID: 5498)

File: /tmp/Yboats.i686.elf

Jump to behavior

Source: Yboats.i686.elf

Submission file: segment LOAD with 7.9712 entropy (max. 8.0)

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Yboats.i686.elf PID: 5498, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Yboats.i686.elf PID: 5498, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Yboats.i686.elf PID: 5498, type: MEMORYSTR

Yara detected Okiru

Source: Yara match	File source: 5498.1.0000000008048000.0000000008065000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: Yboats.i686.elf PID: 5498, 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	System Service 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

Screenshots

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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
Yboats.i686.elf	45%	ReversingLabs	Linux.Backdoor.Gafgyt
Yboats.i686.elf	41%	Virustotal		Browse
Yboats.i686.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://upx.sf.net	Yboats.i686.elf	false	high
http://159.223.45.59/gpon443	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://159.223.45.59/Yboats.arm7;chmod	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://159.223.45.59/adb;	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://schemas.xmlsoap.org/soap/encoding/	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	high
http://159.223.45.59/Yboats.x86	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://159.223.45.59/comtrend%20-O%20-%3E%20/tmp/jno;sh%20/tmp/jno%27/&sessionKey=1039230114	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://159.223.45.59/Yboats.mpsl;chmod	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://purenetworks.com/HNAP1/	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	high
http://159.223.45.59/Yboats.mips	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://159.223.45.59/Yboats.mips;	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	false	unknown
http://schemas.xmlsoap.org/soap/envelope/	Yboats.i686.elf, 5498.1.0000000008048000.0000000008065000.r-x.sdmp	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	loki.mpsl.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boooooos.mpsl.elf	Get hash	malicious	Mirai	Browse
	pecga.arm7.elf	Get hash	malicious	Mirai, Okiru	Browse
	pecga.arm6.elf	Get hash	malicious	Mirai, Okiru	Browse
	byte.x86.elf	Get hash	malicious	Mirai, Okiru	Browse
	dlr.m68k.elf	Get hash	malicious	Unknown	Browse
	byte.x86.elf	Get hash	malicious	Mirai, Okiru	Browse
	boatnet.spc.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	res.arc.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	Yboats.arm.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	Yboats.mips.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	loki.arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	dbg.x86.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	I586.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	ARMV4L.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	ARMV6L.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	MIPSEL.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	ARMV5L.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.24

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	Yboats.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	loki.arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loki.mpsl.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	loki.arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loki.x86_64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loki.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	loki.ppc.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	94.154.35.238-x86-2025-01-18T14_35_21.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	xC5K04kXkF.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, Intel 80386, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.9694881896487075
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	Yboats.i686.elf
File size:	44'576 bytes
MD5:	fa9b901cac092ecb81d7def3f4ad5141
SHA1:	fbfa02a055dbfcdcd3aff9e1f804b7c8b201b0e1
SHA256:	cb2b60f026e826ab11dea79441c40b3614e7ffcbd11f9aa8144931a457831e7d
SHA512:	4be2a712ddf62bd923bae0b156d7e187800ea1e12d9590a9e0e98bd88f40fe883c37fdbe6dd93ff7e55aa544c2f8ae1d6089c8ef493ed167f6b34ff00f23edae
SSDEEP:	768:szViU8Oey7ETZejygIWZzSHsgpxo1hgvZDuxR9FMAvcAGqnbcuyD7U0yqj:CV4Tyyej5I44sgpmgDuxHaYcsnouy8PA
TLSH:	7F13F155A1E40702C629E672387E6F1F4509BB0AD3CD469AEFC0226F8DB971A1D1E30E
File Content Preview:	.ELF........................4...........4. ...(..............................................0...0...... O..........Q.td.............................Y\|zUPX!x...................T..........?..k.I/.j....\.h.blz.g..<r....'.t. ,.}q.BC...7...N. .e....._..k{...D

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x8051ab0
Flags:	0x0
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	0x8048000	0x8048000	0xad1e	0xad1e	7.9712	0x5	R E	0x1000
LOAD	0x0	0x8053000	0x8053000	0x0	0x14f20	0.0000	0x6	RW	0x1000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 4
• 443 (HTTPS)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 18, 2025 18:02:20.238876104 CET	46540	443	192.168.2.14	185.125.190.26
Jan 18, 2025 18:02:51.981905937 CET	46540	443	192.168.2.14	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 18, 2025 18:02:12.159460068 CET	52732	53	192.168.2.14	8.8.8.8
Jan 18, 2025 18:02:12.159576893 CET	40727	53	192.168.2.14	8.8.8.8
Jan 18, 2025 18:02:12.166188955 CET	53	40727	8.8.8.8	192.168.2.14
Jan 18, 2025 18:02:12.166234016 CET	53	52732	8.8.8.8	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Jan 18, 2025 18:02:12.159460068 CET	192.168.2.14	8.8.8.8	0xe3c1	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Jan 18, 2025 18:02:12.159576893 CET	192.168.2.14	8.8.8.8	0x2151	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
Jan 18, 2025 18:02:12.166234016 CET	8.8.8.8	192.168.2.14	0xe3c1	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Jan 18, 2025 18:02:12.166234016 CET	8.8.8.8	192.168.2.14	0xe3c1	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: Yboats.i686.elf PID: 5498, Parent PID: 5416

General

Start time (UTC):	17:02:10
Start date (UTC):	18/01/2025
Path:	/tmp/Yboats.i686.elf
Arguments:	/tmp/Yboats.i686.elf
File size:	44576 bytes
MD5 hash:	fa9b901cac092ecb81d7def3f4ad5141

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 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 Yboats.i686.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

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

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: Yboats.i686.elf PID: 5498, Parent PID: 5416

General

File Activities

File Opened

File Deleted

Chronological Activities

Linux Analysis Report
Yboats.i686.elf