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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:	arm6.elf
Analysis ID:	1622987
MD5:	ed6cc73153ecd719a1da34916f219508
SHA1:	f214060a1ab0640ae4302d6ab2d23c50d3f7e39f
SHA256:	70a6afc7a379a718088f1aa68dcd3eb8e0e53adfc3393dadfbb9eb484ac86a5a
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	80
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Executes the "rm" command used to delete files or directories

Sample has stripped symbol table

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

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1622987
Start date and time:	2025-02-24 19:06:25 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 25s
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:	arm6.elf
Detection:	MAL
Classification:	mal80.troj.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/arm6.elf
PID:	5423
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

arm6.elf (PID: 5423, Parent: 5346, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.elf

dash New Fork (PID: 5492, Parent: 3585)

rm (PID: 5492, Parent: 3585, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.4yEsI2x4W3 /tmp/tmp.wUHZUuwH7V /tmp/tmp.41tvO0c3b8

dash New Fork (PID: 5493, Parent: 3585)

rm (PID: 5493, Parent: 3585, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.4yEsI2x4W3 /tmp/tmp.wUHZUuwH7V /tmp/tmp.41tvO0c3b8

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
arm6.elf	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
arm6.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
arm6.elf	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x15994:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x159a8:$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 0x159bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x159d0:$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 0x159e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x159f8:$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 0x15a0c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a20:$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 0x15a34:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a48:$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 0x15a5c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a70:$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 0x15a84:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a98:$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 0x15aac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15ac0:$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 0x15ad4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15ae8:$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 0x15afc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15b10:$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 0x15b24:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
arm6.elf	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0x15914:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A

Memory Dumps

Source	Rule	Description	Author	Strings
5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x15994:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x159a8:$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 0x159bc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x159d0:$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 0x159e4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x159f8:$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 0x15a0c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a20:$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 0x15a34:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a48:$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 0x15a5c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a70:$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 0x15a84:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15a98:$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 0x15aac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15ac0:$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 0x15ad4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15ae8:$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 0x15afc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x15b10:$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 0x15b24:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0x15914:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A
Process Memory Space: arm6.elf PID: 5423	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: arm6.elf PID: 5423	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x6b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7f:$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 0x93:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xa7:$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 0xbb:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xcf:$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 0xe3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0xf7:$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 0x10b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11f:$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 0x133:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x147:$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 0x15b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x16f:$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 0x183:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x197:$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 0x1ab:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1bf:$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 0x1d3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x1e7:$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 0x1fb:$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

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• 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: arm6.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: arm6.elf	ReversingLabs: Detection: 68%
Source: arm6.elf	Virustotal: Detection: 59%			Perma Link

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: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: unknown	Network traffic detected: HTTP traffic on port 48202 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 37678
Source: unknown	Network traffic detected: HTTP traffic on port 37678 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: arm6.elf, type: SAMPLE	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: arm6.elf, type: SAMPLE	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: Process Memory Space: arm6.elf PID: 5423, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: arm6.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: arm6.elf, type: SAMPLE	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: 5423.1.00007f9211e48000.00007f9211e60000.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: 5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp, type: MEMORY	Matched rule: MAL_ELF_LNX_Mirai_Oct10_2 date = 2018-10-27, hash1 = fa0018e75f503f9748a5de0d14d4358db234f65e28c31c8d5878cc58807081c9, author = Florian Roth, description = Detects ELF malware Mirai related, reference = Internal Research
Source: Process Memory Space: arm6.elf PID: 5423, 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: mal80.troj.linELF@0/0@2/0

Source: /usr/bin/dash (PID: 5492)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.4yEsI2x4W3 /tmp/tmp.wUHZUuwH7V /tmp/tmp.41tvO0c3b8			Jump to behavior
Source: /usr/bin/dash (PID: 5493)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.4yEsI2x4W3 /tmp/tmp.wUHZUuwH7V /tmp/tmp.41tvO0c3b8			Jump to behavior

Source: /tmp/arm6.elf (PID: 5423)

Queries kernel information via 'uname':

Jump to behavior

Source: arm6.elf, 5423.1.000055ce38f07000.000055ce39035000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm6.elf, 5423.1.000055ce38f07000.000055ce39035000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5423.1.00007fffffb12000.00007fffffb33000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5423.1.00007fffffb12000.00007fffffb33000.rw-.sdmp	Binary or memory string: fKx86_64/usr/bin/qemu-arm/tmp/arm6.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/arm6.elf
Source: arm6.elf, 5423.1.00007fffffb12000.00007fffffb33000.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: arm6.elf, type: SAMPLE
Source: Yara match	File source: 5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: arm6.elf PID: 5423, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: arm6.elf, type: SAMPLE
Source: Yara match	File source: 5423.1.00007f9211e48000.00007f9211e60000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: arm6.elf PID: 5423, 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 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 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	2 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
arm6.elf	68%	ReversingLabs	Linux.Trojan.Mirai
arm6.elf	59%	Virustotal		Browse
arm6.elf	100%	Avira	EXP/ELF.Mirai.Z.A

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	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
54.217.10.153	unknown	United States		16509	AMAZON-02US	false
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
54.217.10.153	na.elf	Get hash	malicious	Prometei	Browse
	spc.elf	Get hash	malicious	Mirai, Moobot	Browse
	a-r.m-6.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	SecuriteInfo.com.Trojan.Linux.GenericKD.24542.21937.16674.elf	Get hash	malicious	Unknown	Browse
	hidakibest.mpsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	79.124.40.46-mips-2025-01-23T06_57_06.elf	Get hash	malicious	Mirai, Moobot	Browse
	file.elf	Get hash	malicious	Unknown	Browse
	Space.arm6.elf	Get hash	malicious	Unknown	Browse
	RpcSecurity.mips.elf	Get hash	malicious	Unknown	Browse
185.125.190.26	main_arm7.elf	Get hash	malicious	Mirai	Browse
	main_m68k.elf	Get hash	malicious	Mirai	Browse
	main_sh4.elf	Get hash	malicious	Mirai	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	debug.dbg.elf	Get hash	malicious	Mirai	Browse
	mpsl.elf	Get hash	malicious	Mirai	Browse
	strix.arm5.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	i686.elf	Get hash	malicious	Mirai	Browse
	nsharm.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	.i.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	3atoNational.arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	arm.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	3atoNational.arm77.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	3atoNational.m68k.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	3atoNational.ppc.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	phantom.arm.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	3atoNational.mpsl7.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	main_arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_arm7.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_m68k.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	194.85.251.31-x86-2025-02-24T17_35_13.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	main_x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_sh4.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
AMAZON-02US	mips.elf	Get hash	malicious	Mirai	Browse	65.11.83.92
	ppc.elf	Get hash	malicious	Mirai	Browse	13.233.103.202
	arm7.elf	Get hash	malicious	Mirai	Browse	99.79.220.110
	mpsl.elf	Get hash	malicious	Mirai	Browse	108.149.101.140
	random.exe	Get hash	malicious	Credential Flusher	Browse	44.231.111.180
	main_arm7.elf	Get hash	malicious	Mirai	Browse	34.254.182.186
	random.exe	Get hash	malicious	Credential Flusher	Browse	52.26.30.181
	194.85.251.31-x86-2025-02-24T17_35_13.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
	http://multitran.com/m.exe	Get hash	malicious	Unknown	Browse	52.30.155.174
	https://f.io/bUMg8j0P	Get hash	malicious	HTMLPhisher	Browse	76.76.21.93

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, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.10124281518747
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm6.elf
File size:	99'468 bytes
MD5:	ed6cc73153ecd719a1da34916f219508
SHA1:	f214060a1ab0640ae4302d6ab2d23c50d3f7e39f
SHA256:	70a6afc7a379a718088f1aa68dcd3eb8e0e53adfc3393dadfbb9eb484ac86a5a
SHA512:	7b03c0672c0d1aba5d130aa75644f3d4b45b13694bc1b8e05a4e5f925cbb36f5728310c143fbcf565bb1052f6684c1fef9443becdbd90eaad2e0c4afa57a9432
SSDEEP:	1536:uxnQ1zhJJDbhdPI3CD/u5AdGqR5zVMdOkv8a/qXbt6MAeeivUso83FK45wYi:JhzDzDW5aJhMokUa8GePUso83FK46F
TLSH:	DDA32A86BC419A11C6C11677FE2F108E331257ECE2DE73139D245B607BCB91B0E6BA5A
File Content Preview:	.ELF..............(.....T...4...........4. ...(.....................`w..`w..........................8...............Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.8.............-.@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:	98988
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	0x1584c	0x0	0x6	AX	16
.fini	PROGBITS	0x1d8fc	0x158fc	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x1d910	0x15910	0x1e50	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x20004	0x18008	0x4	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x20008	0x1800c	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x20010	0x18014	0x78	0x4	0x3	WA	4
.data	PROGBITS	0x20088	0x1808c	0x1b0	0x0	0x3	WA	4
.bss	NOBITS	0x20238	0x1823c	0x2758	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x1823c	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x1824c	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	0x17760	0x17760	6.2028	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x18004	0x20004	0x20000	0x238	0xa98c	2.2246	0x6	RW	0x8000	.init_array .fini_array .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 6
• 443 (HTTPS)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Feb 24, 2025 19:07:15.647150993 CET	48202	443	192.168.2.13	185.125.190.26
Feb 24, 2025 19:07:37.473978043 CET	37678	443	192.168.2.13	54.217.10.153
Feb 24, 2025 19:07:37.479248047 CET	443	37678	54.217.10.153	192.168.2.13
Feb 24, 2025 19:07:37.479301929 CET	37678	443	192.168.2.13	54.217.10.153
Feb 24, 2025 19:07:47.135272026 CET	48202	443	192.168.2.13	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Feb 24, 2025 19:07:06.799169064 CET	47739	53	192.168.2.13	8.8.8.8
Feb 24, 2025 19:07:06.799273968 CET	59898	53	192.168.2.13	8.8.8.8
Feb 24, 2025 19:07:06.806072950 CET	53	47739	8.8.8.8	192.168.2.13
Feb 24, 2025 19:07:06.806291103 CET	53	59898	8.8.8.8	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Feb 24, 2025 19:07:06.799169064 CET	192.168.2.13	8.8.8.8	0x6bd0	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Feb 24, 2025 19:07:06.799273968 CET	192.168.2.13	8.8.8.8	0x46a1	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
Feb 24, 2025 19:07:06.806072950 CET	8.8.8.8	192.168.2.13	0x6bd0	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false
Feb 24, 2025 19:07:06.806072950 CET	8.8.8.8	192.168.2.13	0x6bd0	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: arm6.elf PID: 5423, Parent PID: 5346

General

Start time (UTC):	18:07:04
Start date (UTC):	24/02/2025
Path:	/tmp/arm6.elf
Arguments:	/tmp/arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5492, Parent PID: 3585

General

Start time (UTC):	18:07:36
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5492, Parent PID: 3585

General

Start time (UTC):	18:07:36
Start date (UTC):	24/02/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.4yEsI2x4W3 /tmp/tmp.wUHZUuwH7V /tmp/tmp.41tvO0c3b8
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 5493, Parent PID: 3585

General

Start time (UTC):	18:07:36
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5493, Parent PID: 3585

General

Start time (UTC):	18:07:36
Start date (UTC):	24/02/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.4yEsI2x4W3 /tmp/tmp.wUHZUuwH7V /tmp/tmp.41tvO0c3b8
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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 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 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 arm6.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

Persistence and Installation Behavior

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

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: arm6.elf PID: 5423, Parent PID: 5346

General

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5492, Parent PID: 3585

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5492, Parent PID: 3585

General

File Activities

Linux Analysis Report
arm6.elf