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Linux Analysis Report
sh4.elf

Overview

General Information

Sample name:	sh4.elf
Analysis ID:	1575417
MD5:	3e8b52deb514fa2cb0180551afbd3f85
SHA1:	d35ec899c99b695e740e17cdd21fc1673fdeadab
SHA256:	8e8c5bbb9dc1ca65f0cce393493c48d15d4ef471be58178d58d8b06a1b7bb670
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Opens /sys/class/net/* files useful for querying network interface information

Performs DNS TXT record lookups

Sample deletes itself

Detected TCP or UDP traffic on non-standard ports

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:	1575417
Start date and time:	2024-12-15 14:46:28 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 38s
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:	mal60.spyw.evad.linELF@0/0@1/0

Runtime Messages

Command:	/tmp/sh4.elf
PID:	5494
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	Firmware update in progress
Standard Error:

Process Tree

system is lnxubuntu20

sh4.elf (PID: 5494, Parent: 5413, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/sh4.elf

sh4.elf New Fork (PID: 5496, Parent: 5494)

sh4.elf New Fork (PID: 5499, Parent: 5496)

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

ReversingLabs: Detection: 13%

Networking

Opens /sys/class/net/* files useful for querying network interface information

Source: /tmp/sh4.elf (PID: 5496)	Opens: /sys/class/net/	Jump to behavior
Source: /tmp/sh4.elf (PID: 5496)	Opens: /sys/class/net/ens160/address	Jump to behavior
Source: /tmp/sh4.elf (PID: 5496)	Opens: /sys/class/net/ens160/flags	Jump to behavior
Source: /tmp/sh4.elf (PID: 5496)	Opens: /sys/class/net/ens160/carrier	Jump to behavior

Source: global traffic

TCP traffic: 192.168.2.14:32912 -> 86.104.72.130:7000

Source: unknown	TCP traffic detected without corresponding DNS query: 86.104.72.130
Source: unknown	TCP traffic detected without corresponding DNS query: 86.104.72.130
Source: unknown	TCP traffic detected without corresponding DNS query: 86.104.72.130
Source: unknown	TCP traffic detected without corresponding DNS query: 86.104.72.130
Source: unknown	TCP traffic detected without corresponding DNS query: 86.104.72.130
Source: unknown	TCP traffic detected without corresponding DNS query: 86.104.72.130
Source: unknown	UDP traffic detected without corresponding DNS query: 172.217.192.127
Source: unknown	UDP traffic detected without corresponding DNS query: 217.160.70.42

Source: global traffic

DNS traffic detected: DNS query: iranistrash.libre

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal60.spyw.evad.linELF@0/0@1/0

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/sh4.elf (PID: 5494)

File: /tmp/sh4.elf

Jump to behavior

Source: /tmp/sh4.elf (PID: 5494)	Queries kernel information via 'uname':			Jump to behavior
Source: /tmp/sh4.elf (PID: 5496)	Queries kernel information via 'uname':			Jump to behavior

Source: sh4.elf, 5494.1.00007fffb9198000.00007fffb91b9000.rw-.sdmp	Binary or memory string: Lx86_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, 5494.1.00007fffb9198000.00007fffb91b9000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sh4
Source: sh4.elf, 5494.1.0000559ea9672000.0000559ea96f6000.rw-.sdmp	Binary or memory string: U5!/etc/qemu-binfmt/sh4
Source: sh4.elf, 5494.1.0000559ea9672000.0000559ea96f6000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sh4

HIPS / PFW / Operating System Protection Evasion

Performs DNS TXT record lookups

Source: Traffic

DNS traffic detected: queries for: iranistrash.libre

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 Non-Standard Port	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 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

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	13%	ReversingLabs	Linux.Backdoor.Gafgyt

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
iranistrash.libre	unknown	unknown	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	Flag	ASN	ASN Name	Malicious
172.217.192.127	unknown	United States		15169	GOOGLEUS	false
86.104.72.130	unknown	Romania		50636	TELE-ROM-ASstrAleeaPaciiBlB5Ap16RO	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
86.104.72.130	mipsel64.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	sparc.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
TELE-ROM-ASstrAleeaPaciiBlB5Ap16RO	mipsel64.elf	Get hash	malicious	Unknown	Browse	86.104.72.130
	mips.elf	Get hash	malicious	Unknown	Browse	86.104.72.130
	sparc.elf	Get hash	malicious	Unknown	Browse	86.104.72.130
	RHxJqGoGFB.exe	Get hash	malicious	Sality	Browse	86.104.74.51
	uniswap-sniper-bot-with-gui Setup 1.0.0.exe	Get hash	malicious	Unknown	Browse	86.104.74.51
	uniswap-sniper-bot-with-gui Setup 1.0.0.exe	Get hash	malicious	Unknown	Browse	86.104.74.51
	na.hta	Get hash	malicious	Metasploit	Browse	86.104.74.31
	g4nWvGoRNZ.exe	Get hash	malicious	Remcos	Browse	86.104.72.183
	5046511eb489387b7a835a990ea3b36b77185f3fad905511c4bce30aa654c60b_dump.exe	Get hash	malicious	Remcos	Browse	86.104.72.183
	aqB7l6kvXl.exe	Get hash	malicious	Remcos	Browse	86.104.72.183

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):	6.723312929752899
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	sh4.elf
File size:	66'408 bytes
MD5:	3e8b52deb514fa2cb0180551afbd3f85
SHA1:	d35ec899c99b695e740e17cdd21fc1673fdeadab
SHA256:	8e8c5bbb9dc1ca65f0cce393493c48d15d4ef471be58178d58d8b06a1b7bb670
SHA512:	661fbda1b6aa0fc671a04103491634b0c6f26c221b00e63ccf8a820ea7e6f35ce30f4eba419701a0c76bf7a52dbb3ef8304e2acc0cb2c172155ac38d42f35dda
SSDEEP:	1536:eDz/OxtucWiPt0G2b5KM3tcj6w+UqcwCNE:eDz/OxtJWinJQSj7CcwF
TLSH:	36539EB3851C6E64D104C6B4F135DF7DAB47A80A924B2FB679A6C6295007E8CF14B3F8
File Content Preview:	.ELF.....................@.4...........4. ...(...............@...@.8...8.....................A...A.................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:	66008
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	0xf2e0	0x0	0x6	AX	32
.fini	PROGBITS	0x40f3c0	0xf3c0	0x24	0x0	0x6	AX	4
.rodata	PROGBITS	0x40f3e4	0xf3e4	0x754	0x0	0x2	A	4
.ctors	PROGBITS	0x410000	0x10000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x410008	0x10008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x410014	0x10014	0x184	0x0	0x3	WA	4
.bss	NOBITS	0x410198	0x10198	0x1458	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x10198	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	0xfb38	0xfb38	6.8317	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x10000	0x410000	0x410000	0x198	0x15f0	1.2523	0x6	RW	0x10000	.ctors .dtors .data .bss
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
Dec 15, 2024 14:47:26.090162992 CET	32912	7000	192.168.2.14	86.104.72.130
Dec 15, 2024 14:47:26.218414068 CET	7000	32912	86.104.72.130	192.168.2.14
Dec 15, 2024 14:47:26.218499899 CET	32912	7000	192.168.2.14	86.104.72.130
Dec 15, 2024 14:47:26.218975067 CET	32912	7000	192.168.2.14	86.104.72.130
Dec 15, 2024 14:47:26.447402000 CET	7000	32912	86.104.72.130	192.168.2.14
Dec 15, 2024 14:47:27.423048019 CET	7000	32912	86.104.72.130	192.168.2.14
Dec 15, 2024 14:47:27.423446894 CET	32912	7000	192.168.2.14	86.104.72.130
Dec 15, 2024 14:49:07.520786047 CET	32912	7000	192.168.2.14	86.104.72.130
Dec 15, 2024 14:49:07.641010046 CET	7000	32912	86.104.72.130	192.168.2.14
Dec 15, 2024 14:49:08.074635983 CET	7000	32912	86.104.72.130	192.168.2.14
Dec 15, 2024 14:49:08.074961901 CET	32912	7000	192.168.2.14	86.104.72.130

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 15, 2024 14:47:24.621665955 CET	18478	3478	192.168.2.14	172.217.192.127
Dec 15, 2024 14:47:25.822173119 CET	3478	18478	172.217.192.127	192.168.2.14
Dec 15, 2024 14:47:25.843617916 CET	52432	53	192.168.2.14	217.160.70.42
Dec 15, 2024 14:47:26.088550091 CET	53	52432	217.160.70.42	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 15, 2024 14:47:25.843617916 CET	192.168.2.14	217.160.70.42	0x940a	Standard query (0)	iranistrash.libre	16	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 15, 2024 14:47:26.088550091 CET	217.160.70.42	192.168.2.14	0x940a	No error (0)	iranistrash.libre			TXT (Text strings)	IN (0x0001)	false

System Behavior

Analysis Process: sh4.elf PID: 5494, Parent PID: 5413

General

Start time (UTC):	13:47:21
Start date (UTC):	15/12/2024
Path:	/tmp/sh4.elf
Arguments:	/tmp/sh4.elf
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

Chronological Activities

Analysis Process: sh4.elf PID: 5496, Parent PID: 5494

General

Start time (UTC):	13:47:23
Start date (UTC):	15/12/2024
Path:	/tmp/sh4.elf
Arguments:	-
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

Chronological Activities

Analysis Process: sh4.elf PID: 5499, Parent PID: 5496

General

Start time (UTC):	13:47:25
Start date (UTC):	15/12/2024
Path:	/tmp/sh4.elf
Arguments:	-
File size:	4139976 bytes
MD5 hash:	8943e5f8f8c280467b4472c15ae93ba9

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 communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
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

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, 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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Warning!

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

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection 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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: sh4.elf PID: 5494, Parent PID: 5413

General

Chronological Activities

Analysis Process: sh4.elf PID: 5496, Parent PID: 5494

General

Chronological Activities

Analysis Process: sh4.elf PID: 5499, Parent PID: 5496

General

Chronological Activities

Linux Analysis Report
sh4.elf