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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1541784
MD5:	81f832b8b6d01d21abc30f809765e7b1
SHA1:	d17e81ab879a728aea30d152219168cd1cb8819e
SHA256:	c19c04e6b344cf911337464583d37fde4bafee0765c8cde6ef8d984027333114
Tags:	elfuser-abuse_ch

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample has stripped symbol table

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1541784
Start date and time:	2024-10-25 06:28:09 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 27s
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:	5432
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

sh4.elf (PID: 5432, Parent: 5357, 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: 9%

Perma Link

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: 5432)

Queries kernel information via 'uname':

Jump to behavior

Source: sh4.elf, 5432.1.00007ffcd6caf000.00007ffcd6cd0000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 5432.1.0000560a0d331000.0000560a0d394000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4
Source: sh4.elf, 5432.1.00007ffcd6caf000.00007ffcd6cd0000.rw-.sdmp	Binary or memory string: bx86_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, 5432.1.0000560a0d331000.0000560a0d394000.rw-.sdmp	Binary or memory string: V5!/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	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features

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

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
sh4.elf	9%	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 contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

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):	6.855712136170879
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	46'580 bytes
MD5:	81f832b8b6d01d21abc30f809765e7b1
SHA1:	d17e81ab879a728aea30d152219168cd1cb8819e
SHA256:	c19c04e6b344cf911337464583d37fde4bafee0765c8cde6ef8d984027333114
SHA512:	dca9b1fb7bbc566cda6b55a663628c28e8d11e58efeb893956bc60d83b9998355786761fb3e744db5a183a2e12681499da716007f755259c2362da6c265b4b66
SSDEEP:	768:EQcbbZSD7wNuRVSodzxNW6dtMwmwM2T08nBHKMaIW:EQckD7K2SodjddtkwM2A8nFKX
TLSH:	53235B67C9351F63C01ADAF93036AB7843672570814A2EF4A13BC7780593E5DF9987B8
File Content Preview:	.ELF.....................@.4...........4. ...(...............@...@...........................@...@......1..............@...@.@.@.@.................Q.td............................././"O.n........#.@........#.*@l....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:	46020
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	0x9e80	0x0	0x6	AX	32
.fini	PROGBITS	0x409f80	0x9f80	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x409fa4	0x9fa4	0x1120	0x0	0x2	A	4
.eh_frame	PROGBITS	0x40c0c4	0xb0c4	0x7c	0x0	0x3	WA	4
.tbss	NOBITS	0x40c140	0xb140	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x40c140	0xb140	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x40c148	0xb148	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x40c150	0xb150	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x40c154	0xb154	0x204	0x0	0x3	WA	4
.got	PROGBITS	0x40c358	0xb358	0x14	0x4	0x3	WA	4
.bss	NOBITS	0x40c36c	0xb36c	0x2efc	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0xb36c	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	0xb0c4	0xb0c4	6.9084	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xb0c4	0x40c0c4	0x40c0c4	0x2a8	0x31a4	3.8800	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .data .got .bss
TLS	0xb140	0x40c140	0x40c140	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: sh4.elf PID: 5432, Parent PID: 5357

General

Start time (UTC):	04:29:00
Start date (UTC):	25/10/2024
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

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

System Summary

Malware Analysis System Evasion

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

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

System Behavior

Analysis Process: sh4.elf PID: 5432, Parent PID: 5357

General

Chronological Activities

Linux Analysis Report
sh4.elf