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Linux Analysis Report
kaizen.sh4.elf

Overview

General Information

Sample name:	kaizen.sh4.elf
Analysis ID:	1641171
MD5:	51ad6a0e528d1529e88508db0c1074ac
SHA1:	6f7d4ac3a54733142e081118cb39861b8d65a7d1
SHA256:	e496ccd30d6206212021e628a4295c72f0613511c09087d645d37398c1e315cd
Tags:	elfMiraiuser-abuse_ch
Infos:

Detection

Mirai

Score:	72
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

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

Sample has stripped symbol table

Sample listens on a socket

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:	1641171
Start date and time:	2025-03-18 03:45:47 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 40s
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:	kaizen.sh4.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/kaizen.sh4.elf
PID:	6252
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

kaizen.sh4.elf (PID: 6252, Parent: 6177, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/kaizen.sh4.elf

dash New Fork (PID: 6280, Parent: 4345)

rm (PID: 6280, Parent: 4345, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.m0X4VdBEgM /tmp/tmp.LJTBVeenWe /tmp/tmp.kwL309GZcW

dash New Fork (PID: 6281, Parent: 4345)

cat (PID: 6281, Parent: 4345, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.m0X4VdBEgM

dash New Fork (PID: 6282, Parent: 4345)

head (PID: 6282, Parent: 4345, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6283, Parent: 4345)

tr (PID: 6283, Parent: 4345, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6284, Parent: 4345)

cut (PID: 6284, Parent: 4345, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6285, Parent: 4345)

cat (PID: 6285, Parent: 4345, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.m0X4VdBEgM

dash New Fork (PID: 6286, Parent: 4345)

head (PID: 6286, Parent: 4345, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6287, Parent: 4345)

tr (PID: 6287, Parent: 4345, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6288, Parent: 4345)

cut (PID: 6288, Parent: 4345, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6289, Parent: 4345)

rm (PID: 6289, Parent: 4345, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.m0X4VdBEgM /tmp/tmp.LJTBVeenWe /tmp/tmp.kwL309GZcW

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
kaizen.sh4.elf	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
kaizen.sh4.elf	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xc524:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A

Memory Dumps

Source	Rule	Description	Author	Strings
6252.1.00007f7038400000.00007f703840d000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
6252.1.00007f7038400000.00007f703840d000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0xc524:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Compliance
• 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: kaizen.sh4.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: kaizen.sh4.elf	Virustotal: Detection: 60%			Perma Link
Source: kaizen.sh4.elf	ReversingLabs: Detection: 69%

Source: unknown

HTTPS traffic detected: 54.171.230.55:443 -> 192.168.2.23:33606 version: TLS 1.2

Source: /tmp/kaizen.sh4.elf (PID: 6252)

Socket: 127.0.0.1:23441

Jump to behavior

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
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	Network traffic detected: HTTP traffic on port 443 -> 33606
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 33606 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: unknown

HTTPS traffic detected: 54.171.230.55:443 -> 192.168.2.23:33606 version: TLS 1.2

System Summary

Malicious sample detected (through community Yara rule)

Source: kaizen.sh4.elf, type: SAMPLE	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 6252.1.00007f7038400000.00007f703840d000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth

Source: ELF static info symbol of initial sample

.symtab present: no

Source: kaizen.sh4.elf, type: SAMPLE	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: 6252.1.00007f7038400000.00007f703840d000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research

Source: classification engine

Classification label: mal72.troj.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6280)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.m0X4VdBEgM /tmp/tmp.LJTBVeenWe /tmp/tmp.kwL309GZcW			Jump to behavior
Source: /usr/bin/dash (PID: 6289)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.m0X4VdBEgM /tmp/tmp.LJTBVeenWe /tmp/tmp.kwL309GZcW			Jump to behavior

Source: /tmp/kaizen.sh4.elf (PID: 6252)

Queries kernel information via 'uname':

Jump to behavior

Source: kaizen.sh4.elf, 6252.1.00007ffc7f122000.00007ffc7f143000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: kaizen.sh4.elf, 6252.1.0000563c7989f000.0000563c79902000.rw-.sdmp	Binary or memory string: y<V5!/etc/qemu-binfmt/sh4
Source: kaizen.sh4.elf, 6252.1.0000563c7989f000.0000563c79902000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: kaizen.sh4.elf, 6252.1.00007ffc7f122000.00007ffc7f143000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sh4/tmp/kaizen.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/kaizen.sh4.elf
Source: kaizen.sh4.elf, 6252.1.00007ffc7f122000.00007ffc7f143000.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: kaizen.sh4.elf, type: SAMPLE
Source: Yara match	File source: 6252.1.00007f7038400000.00007f703840d000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: kaizen.sh4.elf, type: SAMPLE
Source: Yara match	File source: 6252.1.00007f7038400000.00007f703840d000.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	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	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

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
kaizen.sh4.elf	61%	Virustotal		Browse
kaizen.sh4.elf	69%	ReversingLabs	Linux.Trojan.Mirai
kaizen.sh4.elf	100%	Avira	EXP/ELF.Mirai.Bot.Hua.d

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

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
54.171.230.55	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
54.171.230.55	sync.x86.elf	Get hash	malicious	Unknown	Browse
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	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	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse
	boatnet.arc.elf	Get hash	malicious	Mirai	Browse
	sync.arm5.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	sync.x86.elf	Get hash	malicious	Unknown	Browse
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse
	sync.arm6.elf	Get hash	malicious	Unknown	Browse
	sync.mips.elf	Get hash	malicious	Unknown	Browse
	gigab.mips.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse
	boatnet.arc.elf	Get hash	malicious	Mirai	Browse
	sync.arm7.elf	Get hash	malicious	Unknown	Browse
	sync.arm5.elf	Get hash	malicious	Unknown	Browse
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse
	sync.x86.elf	Get hash	malicious	Unknown	Browse
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse
	sync.arm6.elf	Get hash	malicious	Unknown	Browse
	sync.mips.elf	Get hash	malicious	Unknown	Browse
	gigab.mips.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	boatnet.arm6.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	boatnet.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	sync.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
	sync.arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.sparc.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	boatnet.arm6.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	boatnet.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	sync.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
	sync.arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.sparc.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
AMAZON-02US	hgfs.mpsl.elf	Get hash	malicious	Unknown	Browse	52.19.213.39
	hgfs.arm.elf	Get hash	malicious	Unknown	Browse	54.92.67.213
	hgfs.arm5.elf	Get hash	malicious	Unknown	Browse	18.146.222.149
	na.elf	Get hash	malicious	Prometei	Browse	52.43.119.120
	hgfs.x86.elf	Get hash	malicious	Unknown	Browse	52.46.40.88
	hgfs.mips.elf	Get hash	malicious	Unknown	Browse	18.198.69.209
	axovWq0kT1.exe	Get hash	malicious	Nanocore	Browse	35.158.159.254
	sync.arm7.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	52.43.119.120
	sync.x86.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
INIT7CH	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	boatnet.arc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	sync.arm7.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.x86_64.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.x86.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.mipsel.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sync.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	gigab.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

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, Renesas SH, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.72520146516278
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	kaizen.sh4.elf
File size:	54'084 bytes
MD5:	51ad6a0e528d1529e88508db0c1074ac
SHA1:	6f7d4ac3a54733142e081118cb39861b8d65a7d1
SHA256:	e496ccd30d6206212021e628a4295c72f0613511c09087d645d37398c1e315cd
SHA512:	688ec7178ea5594c54193ad8d246d483ed7610d4ddd1e33876048224a1f2e516ead964f8ce4143dff0a6de939ebe41706d8564bf6165914564d51abe88dbfc3c
SSDEEP:	1536:baDFK/4vV5BcYZWHuVpGW/8GF8hr9PUICXO:bFgvFCuVpGW/3Wp9PUI
TLSH:	24337B63C45D9EE0D4190278E4354AB86B13F41DA2672EF51D8B8B618017EFCF1293F6
File Content Preview:	.ELF.....................@.4...........4. ...(...............@...@.\|...\|.....................A...A.t...d...........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:	53684
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	0xc420	0x0	0x6	AX	32
.fini	PROGBITS	0x40c500	0xc500	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x40c524	0xc524	0x858	0x0	0x2	A	4
.ctors	PROGBITS	0x41d000	0xd000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x41d008	0xd008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x41d014	0xd014	0x160	0x0	0x3	WA	4
.bss	NOBITS	0x41d174	0xd174	0x3f0	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0xd174	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	0xcd7c	0xcd7c	6.8170	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0xd000	0x41d000	0x41d000	0x174	0x564	0.8862	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: 16
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 18, 2025 03:46:41.328422070 CET	43928	443	192.168.2.23	91.189.91.42
Mar 18, 2025 03:46:42.721271992 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:42.721285105 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:42.721296072 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:42.721440077 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:42.721440077 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:42.722012997 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:42.722382069 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:42.728432894 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:42.952163935 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:42.952275038 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:42.952531099 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:42.957217932 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:43.130187035 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:43.130306959 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:43.131393909 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:43.137526989 CET	443	33606	54.171.230.55	192.168.2.23
Mar 18, 2025 03:46:43.137582064 CET	33606	443	192.168.2.23	54.171.230.55
Mar 18, 2025 03:46:46.703731060 CET	42836	443	192.168.2.23	91.189.91.43
Mar 18, 2025 03:46:48.239531994 CET	42516	80	192.168.2.23	109.202.202.202
Mar 18, 2025 03:47:03.085644960 CET	43928	443	192.168.2.23	91.189.91.42
Mar 18, 2025 03:47:13.324203014 CET	42836	443	192.168.2.23	91.189.91.43
Mar 18, 2025 03:47:19.467355013 CET	42516	80	192.168.2.23	109.202.202.202
Mar 18, 2025 03:47:44.039994001 CET	43928	443	192.168.2.23	91.189.91.42

HTTPS Connections

Timestamp	Source IP	Source Port	Dest IP	Dest Port	Subject	Issuer	Not Before	Not After	JA3 SSL Client Fingerprint	JA3 SSL Client Digest
Mar 18, 2025 03:46:42.721296072 CET	54.171.230.55	443	192.168.2.23	33606	CN=motd.ubuntu.com CN=R11, O=Let's Encrypt, C=US	CN=R11, O=Let's Encrypt, C=US CN=ISRG Root X1, O=Internet Security Research Group, C=US	Sun Jan 05 09:21:36 CET 2025 Wed Mar 13 01:00:00 CET 2024	Sat Apr 05 10:21:35 CEST 2025 Sat Mar 13 00:59:59 CET 2027
Mar 18, 2025 03:46:42.721296072 CET	54.171.230.55	443	192.168.2.23	33606	CN=R11, O=Let's Encrypt, C=US	CN=ISRG Root X1, O=Internet Security Research Group, C=US	Wed Mar 13 01:00:00 CET 2024	Sat Mar 13 00:59:59 CET 2027

System Behavior

Analysis Process: kaizen.sh4.elf PID: 6252, Parent PID: 6177

General

Start time (UTC):	02:46:39
Start date (UTC):	18/03/2025
Path:	/tmp/kaizen.sh4.elf
Arguments:	/tmp/kaizen.sh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Listening

Socket Connecting

Chronological Activities

Analysis Process: dash PID: 6280, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6280, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.m0X4VdBEgM /tmp/tmp.LJTBVeenWe /tmp/tmp.kwL309GZcW
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6281, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 6281, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.m0X4VdBEgM
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6282, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: head PID: 6282, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6283, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: tr PID: 6283, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6284, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cut PID: 6284, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6285, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 6285, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.m0X4VdBEgM
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6286, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: head PID: 6286, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6287, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: tr PID: 6287, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6288, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cut PID: 6288, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 6289, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6289, Parent PID: 4345

General

Start time (UTC):	02:46:42
Start date (UTC):	18/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.m0X4VdBEgM /tmp/tmp.LJTBVeenWe /tmp/tmp.kwL309GZcW
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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 kaizen.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

Compliance

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

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

HTTPS Connections

System Behavior

Analysis Process: kaizen.sh4.elf PID: 6252, Parent PID: 6177

General

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Listening

Socket Connecting

Chronological Activities

Analysis Process: dash PID: 6280, Parent PID: 4345

General

Process Activities

Process Overlayed (Exec)

Linux Analysis Report
kaizen.sh4.elf