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Linux Analysis Report
spc.elf

Overview

General Information

Sample name:	spc.elf
Analysis ID:	1543572
MD5:	aa096e54946f463c1d8c73d0909ae37e
SHA1:	cd105d6057c09a3c9718c9de34e91383827ea1c8
SHA256:	758d491fd25d26391e622856e646cab24c827ae9d32f775fc7015a1975bb20c4
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	64
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

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:	1543572
Start date and time:	2024-10-28 07:08:10 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 20s
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:	mal64.troj.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/spc.elf
PID:	5503
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

spc.elf (PID: 5503, Parent: 5427, 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_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
5503.1.00007fa840011000.00007fa840024000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

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

ReversingLabs: Detection: 28%

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal64.troj.linELF@0/0@0/0

Source: /tmp/spc.elf (PID: 5503)

Queries kernel information via 'uname':

Jump to behavior

Source: spc.elf, 5503.1.000055a5dd4b4000.000055a5dd519000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sparc
Source: spc.elf, 5503.1.000055a5dd4b4000.000055a5dd519000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/sparc
Source: spc.elf, 5503.1.00007fff7692a000.00007fff7694b000.rw-.sdmp	Binary or memory string: Ox86_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, 5503.1.00007fff7692a000.00007fff7694b000.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: 5503.1.00007fa840011000.00007fa840024000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: spc.elf, type: SAMPLE
Source: Yara match	File source: 5503.1.00007fa840011000.00007fa840024000.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	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
spc.elf	29%	ReversingLabs	Linux.Backdoor.Mirai
spc.elf	100%	Avira	EXP/ELF.Mirai.W

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 MSB executable, SPARC, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.000965036666091
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	spc.elf
File size:	79'612 bytes
MD5:	aa096e54946f463c1d8c73d0909ae37e
SHA1:	cd105d6057c09a3c9718c9de34e91383827ea1c8
SHA256:	758d491fd25d26391e622856e646cab24c827ae9d32f775fc7015a1975bb20c4
SHA512:	e25ec1540fbfd1c3b0bb5bf5485b7fc96e397e63b215731a6ce7a19a5ab4d3b32ac09a24eccedde59a6d8b71f5630e1d08574fbf18caaf8c413f64f055039069
SSDEEP:	1536:WcvljZBAJY/k+TOjQRohh0MbH6uODyhxE8u3TtLcGPK:WMwYk+TUQRolbDhyWGPK
TLSH:	B7734B223EB50A37C8E1513D60E7A32BF3FA47893474860B7EA15E887F5D96031537A9
File Content Preview:	.ELF...........................4..4......4. ...(....................../.../...............0...0...0....t..4...............0H..0H..0H................dt.Q................................@..(....@.E.................#.....`x..`.....!....."...@.....".........`

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:	0x101c4
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	79052
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	0x100b4	0xb4	0x1c	0x0	0x6	AX	4
.text	PROGBITS	0x100d0	0xd0	0x11700	0x0	0x6	AX	4
.fini	PROGBITS	0x217d0	0x117d0	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x217e8	0x117e8	0x17d8	0x0	0x2	A	8
.eh_frame	PROGBITS	0x23000	0x13000	0x48	0x0	0x3	WA	4
.tbss	NOBITS	0x23048	0x13048	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x23048	0x13048	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x23050	0x13050	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x23058	0x13058	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x2305c	0x1305c	0x1bc	0x4	0x3	WA	4
.data	PROGBITS	0x23218	0x13218	0x25c	0x0	0x3	WA	8
.bss	NOBITS	0x23478	0x13474	0x3040	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x13474	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	0x10000	0x10000	0x12fc0	0x12fc0	6.0163	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x13000	0x23000	0x23000	0x474	0x34b8	4.7875	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .got .data .bss
TLS	0x13048	0x23048	0x23048	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: spc.elf PID: 5503, Parent PID: 5427

General

Start time (UTC):	06:08:58
Start date (UTC):	28/10/2024
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

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

System Summary

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

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: spc.elf PID: 5503, Parent PID: 5427

General

Chronological Activities

Linux Analysis Report
spc.elf