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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1527084
MD5:	5ffdfde781de70215265dff6ef59087a
SHA1:	adde5c9a89d33a213f2d626d257c9943a5273a25
SHA256:	1d04fc98e9b5cfb1e754a37c35df62bc2baec4633a5f6e30d105aed351840c46
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai, Moobot

Score:	100
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Detected Mirai

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Yara detected Mirai

Yara detected Moobot

Sample deletes itself

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Sample listens on a socket

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

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1527084
Start date and time:	2024-10-06 20:54:52 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 17s
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:	na.elf
Detection:	MAL
Classification:	mal100.troj.evad.linELF@0/0@1/0

Warnings

VT rate limit hit for: na.elf

Runtime Messages

Command:	/tmp/na.elf
PID:	5523
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	done.
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 5523, Parent: 5450, MD5: 0d6f61f82cf2f781c6eb0661071d42d9) Arguments: /tmp/na.elf

na.elf New Fork (PID: 5525, Parent: 5523)

na.elf New Fork (PID: 5527, Parent: 5525)

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

Name	Description	Attribution	Blogpost URLs	Link
MooBot		No Attribution	https://blog.netlab.360.com/ddos-botnet-moobot-en/ https://blog.netlab.360.com/moobot-0day-unixcctv-dvr-en/ https://blog.netlab.360.com/some_details_of_the_ddos_attacks_targeting_ukraine_and_russia_in_recent_days/ https://media.defense.gov/2024/Feb/27/2003400753/-1/-1/0/CSA-RUSSIAN-ACTORS-USE-ROUTERS-FACILITATE-CYBER_OPERATIONS.PDF https://otx.alienvault.com/pulse/6075b645942d5adf9bb8949b	https://malpedia.caad.fkie.fraunhofer.de/details/elf.moobot

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
na.elf	JoeSecurity_Moobot	Yara detected Moobot	Joe Security
na.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
na.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x114ec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11500:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11514:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11528:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1153c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11550:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11564:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11578:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1158c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11604:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11618:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1162c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11640:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11654:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11668:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1167c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F

Memory Dumps

Source	Rule	Description	Author	Strings
5523.1.00007f337c400000.00007f337c413000.r-x.sdmp	JoeSecurity_Moobot	Yara detected Moobot	Joe Security
5523.1.00007f337c400000.00007f337c413000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5523.1.00007f337c400000.00007f337c413000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x114ec:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11500:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11514:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11528:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1153c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11550:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11564:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11578:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1158c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115a0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115b4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115c8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115dc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x115f0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11604:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11618:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1162c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11640:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11654:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11668:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1167c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: na.elf PID: 5523	JoeSecurity_Moobot	Yara detected Moobot	Joe Security
Process Memory Space: na.elf PID: 5523	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: na.elf PID: 5523	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x2ed:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x301:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x315:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x329:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x33d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x351:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x365:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x379:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x38d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3a1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3b5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3c9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3dd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x3f1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x405:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x419:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x42d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x441:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x455:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x469:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x47d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Click to see the 1 entries

Suricata Signatures

ET MALWARE ELF/MooBot Mirai DDoS Variant CnC Checkin M2 (Group String Len 2+)

Timestamp	SID	Severity	Classtype	Source IP	Source Port	Destination IP	Destination Port	Protocol
2024-10-06T20:55:34.030748+0200	2030491	1	Malware Command and Control Activity Detected	192.168.2.15	55040	181.41.196.16	33006	TCP

ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response

Timestamp	SID	Severity	Classtype	Source IP	Source Port	Destination IP	Destination Port	Protocol
2024-10-06T20:55:34.553385+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:55:45.945064+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:56:05.946160+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:56:25.947200+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:56:45.947997+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:57:05.949190+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:57:25.949968+0200	2030489	1	Malware Command and Control Activity Detected	181.41.196.16	33006	192.168.2.15	55040	TCP

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: na.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: na.elf

ReversingLabs: Detection: 52%

Networking

Suricata IDS alerts for network traffic

Source: Network traffic	Suricata IDS: 2030491 - Severity 1 - ET MALWARE ELF/MooBot Mirai DDoS Variant CnC Checkin M2 (Group String Len 2+) : 192.168.2.15:55040 -> 181.41.196.16:33006
Source: Network traffic	Suricata IDS: 2030489 - Severity 1 - ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response : 181.41.196.16:33006 -> 192.168.2.15:55040

Source: global traffic

TCP traffic: 192.168.2.15:55040 -> 181.41.196.16:33006

Source: /tmp/na.elf (PID: 5523)

Socket: 0.0.0.0:25265

Jump to behavior

Source: global traffic

DNS traffic detected: DNS query: xz33006.h52l.com

System Summary

Malicious sample detected (through community Yara rule)

Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5523.1.00007f337c400000.00007f337c413000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: na.elf PID: 5523, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: na.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 5523.1.00007f337c400000.00007f337c413000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: na.elf PID: 5523, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16

Source: classification engine

Classification label: mal100.troj.evad.linELF@0/0@1/0

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/na.elf (PID: 5523)

File: /tmp/na.elf

Jump to behavior

Source: /tmp/na.elf (PID: 5523)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 5523.1.0000555b0753c000.0000555b075c3000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mipsel
Source: na.elf, 5523.1.0000555b0753c000.0000555b075c3000.rw-.sdmp	Binary or memory string: [U!/etc/qemu-binfmt/mipsel
Source: na.elf, 5523.1.00007ffffca64000.00007ffffca85000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mipsel
Source: na.elf, 5523.1.00007ffffca64000.00007ffffca85000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-mipsel/tmp/na.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/na.elf

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: na.elf, type: SAMPLE
Source: Yara match	File source: 5523.1.00007f337c400000.00007f337c413000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: na.elf PID: 5523, type: MEMORYSTR

Yara detected Moobot

Source: Yara match	File source: na.elf, type: SAMPLE
Source: Yara match	File source: 5523.1.00007f337c400000.00007f337c413000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: na.elf PID: 5523, type: MEMORYSTR

Remote Access Functionality

Detected Mirai

Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant CnC Checkin M2 (Group String Len 2+)
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response
Source: Traffic	Suricata IDS: ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response

Yara detected Mirai

Source: Yara match	File source: na.elf, type: SAMPLE
Source: Yara match	File source: 5523.1.00007f337c400000.00007f337c413000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: na.elf PID: 5523, type: MEMORYSTR

Yara detected Moobot

Source: Yara match	File source: na.elf, type: SAMPLE
Source: Yara match	File source: 5523.1.00007f337c400000.00007f337c413000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: na.elf PID: 5523, 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	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

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
na.elf	53%	ReversingLabs	Linux.Backdoor.Mirai
na.elf	100%	Avira	EXP/ELF.Mirai.Z.A

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
xz33006.h52l.com	181.41.196.16	true	true		unknown

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
181.41.196.16	xz33006.h52l.com	Chile		61317	ASDETUKhttpwwwheficedcomGB	true

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
181.41.196.16	na.elf	Get hash	malicious	Mirai, Moobot	Browse
	na.elf	Get hash	malicious	Mirai, Moobot	Browse
	na.elf	Get hash	malicious	Mirai, Moobot	Browse
	na.elf	Get hash	malicious	Mirai, Moobot	Browse
	na.elf	Get hash	malicious	Mirai, Moobot	Browse
	na.elf	Get hash	malicious	Mirai, Moobot	Browse
	na.elf	Get hash	malicious	Mirai, Moobot	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
xz33006.h52l.com	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
ASDETUKhttpwwwheficedcomGB	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	na.elf	Get hash	malicious	Mirai, Moobot	Browse	181.41.196.16
	presupuesto urgente.exe	Get hash	malicious	FormBook, GuLoader	Browse	191.101.104.164
	http://support-inc-riccardopulcini733255.codeanyapp.com/wp-admin/css/colors/blue/am/	Get hash	malicious	Unknown	Browse	102.165.14.4
	Payment_Volksbank_EUR36550-Bestellung -4500673541.com.exe	Get hash	malicious	Remcos, GuLoader	Browse	102.165.14.28

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, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.489209300879961
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	80'728 bytes
MD5:	5ffdfde781de70215265dff6ef59087a
SHA1:	adde5c9a89d33a213f2d626d257c9943a5273a25
SHA256:	1d04fc98e9b5cfb1e754a37c35df62bc2baec4633a5f6e30d105aed351840c46
SHA512:	7c9e973232befac549ce0cd8e79932024521c32e3188f08bc059ba9b75116435968d3a90cbfba03334e44d341adc42e7da30e733733b028fcb84b13bd3f4f878
SSDEEP:	1536:g9oDQYtmD9aeR6n1rVbgS2wqqZshoqyP0RbLM8:gSDQYtmD9aeRm2wqqOFM8
TLSH:	3B83E716FB510FF7DC6BCD3706B917012ACC695A22E87B367634C828B65B20B55E3C64
File Content Preview:	.ELF....................`.@.4...(9......4. ...(...............@...@....................0...0E..0E......*..........Q.td...............................<l..'!......'.......................<H..'!... .........9'.. ........................<...'!...........p.9

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	MIPS R3000
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400260
Flags:	0x1007
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	80168
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	0x400094	0x94	0x8c	0x0	0x6	AX	4
.text	PROGBITS	0x400120	0x120	0x10dc0	0x0	0x6	AX	16
.fini	PROGBITS	0x410ee0	0x10ee0	0x5c	0x0	0x6	AX	4
.rodata	PROGBITS	0x410f40	0x10f40	0x1b50	0x0	0x2	A	16
.ctors	PROGBITS	0x453000	0x13000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x453008	0x13008	0x8	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x453014	0x13014	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x453020	0x13020	0x3f0	0x0	0x3	WA	16
.got	PROGBITS	0x453410	0x13410	0x4b4	0x4	0x10000003	WAp	16
.sbss	NOBITS	0x4538c4	0x138c4	0x1c	0x0	0x10000003	WAp	4
.bss	NOBITS	0x4538e0	0x138c4	0x2210	0x0	0x3	WA	16
.mdebug.abi32	PROGBITS	0x9b4	0x138c4	0x0	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x138c4	0x64	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	0x12a90	0x12a90	5.5870	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x13000	0x453000	0x453000	0x8c4	0x2af0	3.7726	0x6	RW	0x10000	.ctors .dtors .data.rel.ro .data .got .sbss .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Suricata IDS Alerts

Timestamp	SID	Signature	Severity	Source IP	Source Port	Dest IP	Dest Port	Protocol
2024-10-06T20:55:34.030748+0200	2030491	ET MALWARE ELF/MooBot Mirai DDoS Variant CnC Checkin M2 (Group String Len 2+)	1	192.168.2.15	55040	181.41.196.16	33006	TCP
2024-10-06T20:55:34.553385+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:55:45.945064+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:56:05.946160+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:56:25.947200+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:56:45.947997+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:57:05.949190+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP
2024-10-06T20:57:25.949968+0200	2030489	ET MALWARE ELF/MooBot Mirai DDoS Variant Server Response	1	181.41.196.16	33006	192.168.2.15	55040	TCP

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 6, 2024 20:55:34.016151905 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:55:34.020963907 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:55:34.021012068 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:55:34.030747890 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:55:34.035583973 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:55:34.553385019 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:55:34.553473949 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:55:44.561996937 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:55:44.566848993 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:55:45.945064068 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:55:45.945257902 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:56:05.946160078 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:56:05.946456909 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:56:25.947200060 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:56:25.947320938 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:56:45.947997093 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:56:45.948162079 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:57:05.949189901 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:57:05.949436903 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:57:25.949968100 CEST	33006	55040	181.41.196.16	192.168.2.15
Oct 6, 2024 20:57:25.950118065 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:57:35.958935022 CEST	55040	33006	192.168.2.15	181.41.196.16
Oct 6, 2024 20:57:35.963900089 CEST	33006	55040	181.41.196.16	192.168.2.15

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 6, 2024 20:55:34.001635075 CEST	38938	53	192.168.2.15	8.8.8.8
Oct 6, 2024 20:55:34.008692026 CEST	53	38938	8.8.8.8	192.168.2.15

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 6, 2024 20:55:34.001635075 CEST	192.168.2.15	8.8.8.8	0x6c90	Standard query (0)	xz33006.h52l.com	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Oct 6, 2024 20:55:34.008692026 CEST	8.8.8.8	192.168.2.15	0x6c90	No error (0)	xz33006.h52l.com		181.41.196.16	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: na.elf PID: 5523, Parent PID: 5450

General

Start time (UTC):	18:55:33
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	5773336 bytes
MD5 hash:	0d6f61f82cf2f781c6eb0661071d42d9

Chronological Activities

Analysis Process: na.elf PID: 5525, Parent PID: 5523

General

Start time (UTC):	18:55:33
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5773336 bytes
MD5 hash:	0d6f61f82cf2f781c6eb0661071d42d9

Chronological Activities

Analysis Process: na.elf PID: 5527, Parent PID: 5525

General

Start time (UTC):	18:55:33
Start date (UTC):	06/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5773336 bytes
MD5 hash:	0d6f61f82cf2f781c6eb0661071d42d9

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 na.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Hooking and other Techniques for Hiding and Protection

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

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

Suricata IDS Alerts

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: na.elf PID: 5523, Parent PID: 5450

General

Chronological Activities

Analysis Process: na.elf PID: 5525, Parent PID: 5523

General

Chronological Activities

Analysis Process: na.elf PID: 5527, Parent PID: 5525

General

Chronological Activities

Linux Analysis Report
na.elf