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Linux Analysis Report
xd.arm5.elf

Overview

General Information

Sample name:	xd.arm5.elf
Analysis ID:	1654988
MD5:	fb38760d9f0f00b4d029eac456d2a903
SHA1:	5ada33a4508f62d6c16f0135832b058a597707ff
SHA256:	7535e132683fdda382ae13bf2b0b1cf02b70922a96702cb1d67cee7fa953f82c
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	84
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Sample is packed with UPX

ELF contains segments with high entropy indicating compressed/encrypted content

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

Sample contains only a LOAD segment without any section mappings

Sample tries to kill a process (SIGKILL)

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:	1654988
Start date and time:	2025-04-02 21:12:23 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 2s
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:	xd.arm5.elf
Detection:	MAL
Classification:	mal84.troj.evad.linELF@0/0@0/0

Warnings

Connection to analysis system has been lost, crash info: Unknown

Process Tree

system is lnxubuntu20

xd.arm5.elf (PID: 6224, Parent: 6145, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/xd.arm5.elf

xd.arm5.elf New Fork (PID: 6226, Parent: 6224)

dash New Fork (PID: 6283, Parent: 4335)

rm (PID: 6283, Parent: 4335, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.UIDVCoFlsv /tmp/tmp.GHMIMcrog4 /tmp/tmp.OVwHHjf8Rz

dash New Fork (PID: 6284, Parent: 4335)

rm (PID: 6284, Parent: 4335, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.UIDVCoFlsv /tmp/tmp.GHMIMcrog4 /tmp/tmp.OVwHHjf8Rz

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

Memory Dumps

Source	Rule	Description	Author	Strings
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x10a44:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10a58:$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 0x10a6c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10a80:$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 0x10a94:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10aa8:$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 0x10abc:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10ad0:$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 0x10ae4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10af8:$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 0x10b0c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b20:$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 0x10b34:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b48:$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 0x10b5c:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b70:$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 0x10b84:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b98:$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 0x10bac:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10bc0:$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 0x10bd4:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x109e0:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	Mirai_Botnet_Malware	Detects Mirai Botnet Malware	Florian Roth	0x106e4:$x1: POST /cdn-cgi/ 0x11408:$s1: LCOGQGPTGP
6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0x106e4:$c01: 50 4F 53 54 20 2F 63 64 6E 2D 63 67 69 2F 00 00 20 48 54 54 50 2F 31 2E 31 0D 0A 55 73 65 72 2D 41 67 65 6E 74 3A 20 00 0D 0A 48 6F 73 74 3A
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	JoeSecurity_Mirai_5	Yara detected Mirai	Joe Security
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x10a44:$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 0x10a58:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10a6c:$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 0x10a80:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10a94:$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 0x10aa8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10abc:$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 0x10ad0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10ae4:$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 0x10af8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b0c:$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 0x10b20:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b34:$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 0x10b48:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b5c:$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 0x10b70:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10b84:$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 0x10b98:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10bac:$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 0x10bc0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x10bd4:$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
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x109e0:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	Mirai_Botnet_Malware	Detects Mirai Botnet Malware	Florian Roth	0x106e4:$x1: POST /cdn-cgi/ 0x11408:$s1: LCOGQGPTGP
6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	MAL_ELF_LNX_Mirai_Oct10_2	Detects ELF malware Mirai related	Florian Roth	0x106e4:$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: xd.arm5.elf PID: 6224	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
Process Memory Space: xd.arm5.elf PID: 6224	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: xd.arm5.elf PID: 6224	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x11bb6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11bca:$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 0x11bde:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11bf2:$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 0x11c06:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11c1a:$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 0x11c2e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11c42:$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 0x11c56:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11c6a:$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 0x11c7e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11c92:$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 0x11ca6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11cba:$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 0x11cce:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11ce2:$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 0x11cf6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11d0a:$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 0x11d1e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x11d32:$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 0x11d46:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: xd.arm5.elf PID: 6224	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x11b69:$a: 53 65 6C 66 20 52 65 70 20 46 75 63 6B 69 6E 67 20 4E 65 54 69 53 20 61 6E 64
Click to see the 13 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Data Obfuscation
• Persistence and Installation Behavior
• Hooking and other Techniques for Hiding and Protection
• Malware Analysis System Evasion
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: xd.arm5.elf	Virustotal: Detection: 25%			Perma Link
Source: xd.arm5.elf	ReversingLabs: Detection: 36%

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219

Source: xd.arm5.elf, 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, xd.arm5.elf, 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	String found in binary or memory: http://213.209.129.92/d/xd.arm7;chmod
Source: xd.arm5.elf	String found in binary or memory: http://upx.sf.net

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39240
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 39240 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Detects Mirai Botnet Malware Author: Florian Roth
Source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Detects Mirai Botnet Malware Author: Florian Roth
Source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Detects ELF malware Mirai related Author: Florian Roth
Source: Process Memory Space: xd.arm5.elf PID: 6224, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: xd.arm5.elf PID: 6224, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: LOAD without section mappings

Program segment: 0x8000

Source: /tmp/xd.arm5.elf (PID: 6224)

SIGKILL sent: pid: 0 (kernel), result: unknown

Jump to behavior

Source: 6224.1.00007f1a54017000.00007f1a5402a000.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: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = aa4aee9f3d6bedd8234eaf8778895a0f5d71c42b21f2a428f01f121e85704e8e, id = ea92cca8-bba7-4a1c-9b88-a2d051ad0021, last_modified = 2021-09-16
Source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Mirai_Botnet_Malware date = 2016-10-04, hash5 = 420bf9215dfb04e5008c5e522eee9946599e2b323b17f17919cd802ebb012175, hash4 = 2efa09c124f277be2199bee58f49fc0ce6c64c0bef30079dfb3d94a6de492a69, hash3 = 20683ff7a5fec1237fc09224af40be029b9548c62c693844624089af568c89d4, hash2 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, hash1 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, author = Florian Roth, description = Detects Mirai Botnet Malware, hash10 = c61bf95146c68bfbbe01d7695337ed0e93ea759f59f651799f07eecdb339f83f, hash11 = d9573c3850e2ae35f371dff977fc3e5282a5e67db8e3274fd7818e8273fd5c89, hash12 = f1100c84abff05e0501e77781160d9815628e7fd2de9e53f5454dbcac7c84ca5, hash9 = bf0471b37dba7939524a30d7d5afc8fcfb8d4a7c9954343196737e72ea4e2dc4, hash8 = 89570ae59462e6472b6769545a999bde8457e47ae0d385caaa3499ab735b8147, hash7 = 70bb0ec35dd9afcfd52ec4e1d920e7045dc51dca0573cd4c753987c9d79405c0, hash6 = 62cdc8b7fffbaf5683a466f6503c03e68a15413a90f6afd5a13ba027631460c6, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/, hash13 = fb713ccf839362bf0fbe01aedd6796f4d74521b133011b408e42c1fd9ab8246b
Source: 6224.1.00007f1a54017000.00007f1a5402a000.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: 6226.1.00007f1a54017000.00007f1a5402a000.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: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = aa4aee9f3d6bedd8234eaf8778895a0f5d71c42b21f2a428f01f121e85704e8e, id = ea92cca8-bba7-4a1c-9b88-a2d051ad0021, last_modified = 2021-09-16
Source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY	Matched rule: Mirai_Botnet_Malware date = 2016-10-04, hash5 = 420bf9215dfb04e5008c5e522eee9946599e2b323b17f17919cd802ebb012175, hash4 = 2efa09c124f277be2199bee58f49fc0ce6c64c0bef30079dfb3d94a6de492a69, hash3 = 20683ff7a5fec1237fc09224af40be029b9548c62c693844624089af568c89d4, hash2 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, hash1 = 05c78c3052b390435e53a87e3d31e9fb17f7c76bb4df2814313bca24735ce81c, author = Florian Roth, description = Detects Mirai Botnet Malware, hash10 = c61bf95146c68bfbbe01d7695337ed0e93ea759f59f651799f07eecdb339f83f, hash11 = d9573c3850e2ae35f371dff977fc3e5282a5e67db8e3274fd7818e8273fd5c89, hash12 = f1100c84abff05e0501e77781160d9815628e7fd2de9e53f5454dbcac7c84ca5, hash9 = bf0471b37dba7939524a30d7d5afc8fcfb8d4a7c9954343196737e72ea4e2dc4, hash8 = 89570ae59462e6472b6769545a999bde8457e47ae0d385caaa3499ab735b8147, hash7 = 70bb0ec35dd9afcfd52ec4e1d920e7045dc51dca0573cd4c753987c9d79405c0, hash6 = 62cdc8b7fffbaf5683a466f6503c03e68a15413a90f6afd5a13ba027631460c6, reference = Internal Research, license = https://creativecommons.org/licenses/by-nc/4.0/, hash13 = fb713ccf839362bf0fbe01aedd6796f4d74521b133011b408e42c1fd9ab8246b
Source: 6226.1.00007f1a54017000.00007f1a5402a000.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: xd.arm5.elf PID: 6224, 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: Process Memory Space: xd.arm5.elf PID: 6224, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = aa4aee9f3d6bedd8234eaf8778895a0f5d71c42b21f2a428f01f121e85704e8e, id = ea92cca8-bba7-4a1c-9b88-a2d051ad0021, last_modified = 2021-09-16

Source: classification engine

Classification label: mal84.troj.evad.linELF@0/0@0/0

Data Obfuscation

Sample is packed with UPX

Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $

Source: /usr/bin/dash (PID: 6283)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.UIDVCoFlsv /tmp/tmp.GHMIMcrog4 /tmp/tmp.OVwHHjf8Rz			Jump to behavior
Source: /usr/bin/dash (PID: 6284)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.UIDVCoFlsv /tmp/tmp.GHMIMcrog4 /tmp/tmp.OVwHHjf8Rz			Jump to behavior

Source: xd.arm5.elf

Submission file: segment LOAD with 7.9554 entropy (max. 8.0)

Source: /tmp/xd.arm5.elf (PID: 6224)

Queries kernel information via 'uname':

Jump to behavior

Source: xd.arm5.elf, 6224.1.000055ca15b81000.000055ca15d2f000.rw-.sdmp, xd.arm5.elf, 6226.1.000055ca15b81000.000055ca15d2f000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: xd.arm5.elf, 6224.1.000055ca15b81000.000055ca15d2f000.rw-.sdmp, xd.arm5.elf, 6226.1.000055ca15b81000.000055ca15d2f000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: xd.arm5.elf, 6224.1.00007ffeb75f0000.00007ffeb7611000.rw-.sdmp, xd.arm5.elf, 6226.1.00007ffeb75f0000.00007ffeb7611000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: xd.arm5.elf, 6224.1.00007ffeb75f0000.00007ffeb7611000.rw-.sdmp, xd.arm5.elf, 6226.1.00007ffeb75f0000.00007ffeb7611000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/xd.arm5.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/xd.arm5.elf

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: xd.arm5.elf PID: 6224, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: xd.arm5.elf PID: 6224, 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	11 Obfuscated Files or Information	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	1 File Deletion	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
xd.arm5.elf	25%	Virustotal		Browse
xd.arm5.elf	36%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://213.209.129.92/d/xd.arm7;chmod	xd.arm5.elf, 6224.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp, xd.arm5.elf, 6226.1.00007f1a54017000.00007f1a5402a000.r-x.sdmp	false		high
http://upx.sf.net	xd.arm5.elf	false		high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	socat	Get hash	malicious	Unknown	Browse
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	na.elf	Get hash	malicious	Prometei	Browse
	xd.i486.elf	Get hash	malicious	Mirai	Browse
	xd.spc.elf	Get hash	malicious	Mirai	Browse
	xd.x86_64.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	xd.i486.elf	Get hash	malicious	Mirai	Browse
	xd.spc.elf	Get hash	malicious	Mirai	Browse
	xd.x86_64.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	xd.mips.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	xd.arm6.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	xd.i486.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	xd.spc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	xd.x86_64.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
CANONICAL-ASGB	xd.mips.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	xd.arm6.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	xd.i486.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	xd.spc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	xd.x86_64.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	xd.i486.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	xd.spc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
AMAZON-02US	xd.mips.elf	Get hash	malicious	Mirai	Browse	54.247.62.1
	https://sprayfoamsys.com	Get hash	malicious	Unknown	Browse	13.33.252.96
	xd.powerpc-440fp.elf	Get hash	malicious	Mirai	Browse	54.217.10.153
	xd.i486.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
	https://sprayfoamsys.com	Get hash	malicious	Unknown	Browse	54.154.143.62
	xd.sh4.elf	Get hash	malicious	Mirai	Browse	44.233.241.155
	xd.x86_64.elf	Get hash	malicious	Mirai	Browse	13.223.156.99
	na.elf	Get hash	malicious	Prometei	Browse	54.171.230.55
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	https://supplier.metaenterprise.com/supplier-connect/home	Get hash	malicious	Unknown	Browse	3.129.1.221

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, version 1 (ARM), statically linked, no section header
Entropy (8bit):	7.952305170821938
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	xd.arm5.elf
File size:	31'500 bytes
MD5:	fb38760d9f0f00b4d029eac456d2a903
SHA1:	5ada33a4508f62d6c16f0135832b058a597707ff
SHA256:	7535e132683fdda382ae13bf2b0b1cf02b70922a96702cb1d67cee7fa953f82c
SHA512:	6271e22307c679cadd9ca600d50b894596837dbfc279090df0df8d49d2797644c966a4c31bb418d31334dd182543649bd0063adc94728b3bdc17170e381b93e1
SSDEEP:	768:uaitNbXPcYYkbKdR3aHmgSWQFoCyXhQrs3Uozk:ctNbX0YlbKzM1FCCyWzk
TLSH:	4BE2F120E154BD23F021ABBC34F5F485B0426F7490B3B2B6811405ABBECAC5A9A7D35B
File Content Preview:	.ELF...a..........(.....p...4...........4. ...(......................z...z...............'...'...'..................Q.td............................s.y.UPX!.........$...$......R..........?.E.h;.}...^..........e...Z.j.!. ....SW.$+.J+..Vm../.'lS"@.j.~@...*p

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:	ARM - ABI
ABI Version:	0
Entry Point Address:	0xe870
Flags:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	40
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x8000	0x8000	0x7a1f	0x7a1f	7.9554	0x5	R E	0x8000
LOAD	0x27d0	0x227d0	0x227d0	0x0	0x0	0.0000	0x6	RW	0x8000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 11
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 2, 2025 21:13:08.320159912 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 2, 2025 21:13:13.951646090 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 2, 2025 21:13:14.719465971 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 2, 2025 21:13:28.285572052 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 2, 2025 21:13:29.629806042 CEST	39240	443	192.168.2.23	34.249.145.219
Apr 2, 2025 21:13:29.629903078 CEST	443	39240	34.249.145.219	192.168.2.23
Apr 2, 2025 21:13:29.630388021 CEST	39240	443	192.168.2.23	34.249.145.219
Apr 2, 2025 21:13:29.631128073 CEST	39240	443	192.168.2.23	34.249.145.219
Apr 2, 2025 21:13:29.631211996 CEST	443	39240	34.249.145.219	192.168.2.23
Apr 2, 2025 21:13:40.571820021 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 2, 2025 21:13:44.667054892 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 2, 2025 21:14:09.239963055 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 2, 2025 21:14:29.622147083 CEST	39240	443	192.168.2.23	34.249.145.219
Apr 2, 2025 21:14:29.664284945 CEST	443	39240	34.249.145.219	192.168.2.23

ICMP Packets

Timestamp	Source IP	Dest IP	Checksum	Code	Type
Apr 2, 2025 21:13:17.025310040 CEST	192.168.2.23	192.168.2.1	8283	(Port unreachable)	Destination Unreachable
Apr 2, 2025 21:14:37.047564030 CEST	192.168.2.23	192.168.2.1	8283	(Port unreachable)	Destination Unreachable

System Behavior

Analysis Process: xd.arm5.elf PID: 6224, Parent PID: 6145

General

Start time (UTC):	19:13:07
Start date (UTC):	02/04/2025
Path:	/tmp/xd.arm5.elf
Arguments:	/tmp/xd.arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Read

Process Activities

Process Forked

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: xd.arm5.elf PID: 6226, Parent PID: 6224

General

Start time (UTC):	19:13:08
Start date (UTC):	02/04/2025
Path:	/tmp/xd.arm5.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Analysis Process: dash PID: 6283, Parent PID: 4335

General

Start time (UTC):	19:14:28
Start date (UTC):	02/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6283, Parent PID: 4335

General

Start time (UTC):	19:14:28
Start date (UTC):	02/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.UIDVCoFlsv /tmp/tmp.GHMIMcrog4 /tmp/tmp.OVwHHjf8Rz
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6284, Parent PID: 4335

General

Start time (UTC):	19:14:28
Start date (UTC):	02/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6284, Parent PID: 4335

General

Start time (UTC):	19:14:28
Start date (UTC):	02/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.UIDVCoFlsv /tmp/tmp.GHMIMcrog4 /tmp/tmp.OVwHHjf8Rz
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

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 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 xd.arm5.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Process Tree

Malware Threat Intel

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

ICMP Packets

System Behavior

Analysis Process: xd.arm5.elf PID: 6224, Parent PID: 6145

General

File Activities

File Opened

File Read

Process Activities

Process Forked

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: xd.arm5.elf PID: 6226, Parent PID: 6224

General

Analysis Process: dash PID: 6283, Parent PID: 4335

General

Process Activities

Process Overlayed (Exec)

Linux Analysis Report
xd.arm5.elf