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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1542659
MD5:	c53cc0aafc5fd8826425536a59186569
SHA1:	0251d5941f4533cc0d4f797f59c9eb1eb20e3419
SHA256:	c73adb3965bde3736d762c0c0b064b521caabe212df0214dc3d3a89bdc256ab9
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample has stripped symbol table

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:	1542659
Start date and time:	2024-10-26 05:17:07 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 36s
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:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/sh4.elf
PID:	6231
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

sh4.elf (PID: 6231, Parent: 6155, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

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

Virustotal: Detection: 10%

Perma Link

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: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal48.linELF@0/0@0/0

Source: /tmp/sh4.elf (PID: 6231)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.elf, 6231.1.00007ffc42676000.00007ffc42697000.rw-.sdmp	Binary or memory string: jyx86_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, 6231.1.00007ffc42676000.00007ffc42697000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 6231.1.0000557a7524f000.0000557a752b2000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 6231.1.0000557a7524f000.0000557a752b2000.rw-.sdmp	Binary or memory string: %uzU5!/etc/qemu-binfmt/sh4

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	Direct Volume Access	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

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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	11%	Virustotal		Browse

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

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
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	.i.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	x86_64.bin.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	BRq7npst3l.elf	Get hash	malicious	Mirai	Browse
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm6.elf	Get hash	malicious	Unknown	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
91.189.91.42	.i.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	x86_64.bin.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	BRq7npst3l.elf	Get hash	malicious	Mirai	Browse
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm6.elf	Get hash	malicious	Unknown	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	m68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	x86_64.bin.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	BRq7npst3l.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	dlr.x86.elf	Get hash	malicious	Okiru	Browse	185.125.190.26
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	m68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	x86_64.bin.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	BRq7npst3l.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	dlr.x86.elf	Get hash	malicious	Okiru	Browse	185.125.190.26
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm7.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	m68k.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	x86_64.bin.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	BRq7npst3l.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	la.bot.arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	main_mips.elf	Get hash	malicious	Mirai	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):	6.8609657379016635
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	46'452 bytes
MD5:	c53cc0aafc5fd8826425536a59186569
SHA1:	0251d5941f4533cc0d4f797f59c9eb1eb20e3419
SHA256:	c73adb3965bde3736d762c0c0b064b521caabe212df0214dc3d3a89bdc256ab9
SHA512:	a31e95a718643c49cc6dce38adc9ae540200609b75c0030f5c2b866966e1929bfe5249f2bdeedfde4af0faec60c4c1dc91d9021e1a93d3945cb515bb1d05fa89
SSDEEP:	768:1X6C7Zy7e5D+JV6oElxsNKCKbIwzOOn+8nQhdyxIW:1X6x7el+6oEz2KC6OO+8nedi
TLSH:	C4235A67D9222F67C00ADAF93439ABB903671571814A2EF4613AC37C0553D8DFA987F8
File Content Preview:	.ELF.....................@.4...D.......4. ...(...............@...@.D...D...............D...D.@.D.@......1....................@...@.................Q.td............................././"O.n........#.@........#.*@.....o&O.n...l.............................

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:	0x4001c0
Flags:	0x9
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	45892
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x4000b4	0xb4	0x30	0x0	0x6	AX	4
.text	PROGBITS	0x400100	0x100	0x9e00	0x0	0x6	AX	32
.fini	PROGBITS	0x409f00	0x9f00	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x409f24	0x9f24	0x1120	0x0	0x2	A	4
.eh_frame	PROGBITS	0x40c044	0xb044	0x7c	0x0	0x3	WA	4
.tbss	NOBITS	0x40c0c0	0xb0c0	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x40c0c0	0xb0c0	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x40c0c8	0xb0c8	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x40c0d0	0xb0d0	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x40c0d4	0xb0d4	0x204	0x0	0x3	WA	4
.got	PROGBITS	0x40c2d8	0xb2d8	0x14	0x4	0x3	WA	4
.bss	NOBITS	0x40c2ec	0xb2ec	0x2efc	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0xb2ec	0x58	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	0xb044	0xb044	6.9154	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xb044	0x40c044	0x40c044	0x2a8	0x31a4	3.8528	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .data .got .bss
TLS	0xb0c0	0x40c0c0	0x40c0c0	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 26, 2024 05:18:01.470465899 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 26, 2024 05:18:02.238454103 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 26, 2024 05:18:15.804722071 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 26, 2024 05:18:28.090985060 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 26, 2024 05:18:32.186312914 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 26, 2024 05:18:56.759130955 CEST	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: sh4.elf PID: 6231, Parent PID: 6155

General

Start time (UTC):	03:17:56
Start date (UTC):	26/10/2024
Path:	/tmp/sh4.elf
Arguments:	/tmp/sh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

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

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

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: 6231, Parent PID: 6155

General

Chronological Activities

Linux Analysis Report
sh4.elf