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Linux Analysis Report
aarch64.elf

Overview

General Information

Sample name:	aarch64.elf
Analysis ID:	1646582
MD5:	c63a3be8a87bf285ddce9a1feb79683b
SHA1:	8e65172ec55d4e69d3c2febca9130600c1abf10b
SHA256:	ff8a30a0f4fb0b7ccb822056e230303411ffc148af8786a3164080e67ef91a74
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	68
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

Sample reads /proc/mounts (often used for finding a writable filesystem)

Enumerates processes within the "proc" file system

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

Found strings indicative of a multi-platform dropper

Sample has stripped symbol table

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1646582
Start date and time:	2025-03-24 06:15:09 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 30s
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:	aarch64.elf
Detection:	MAL
Classification:	mal68.troj.linELF@0/4@2/0

Runtime Messages

Command:	/tmp/aarch64.elf
PID:	5421
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	For God so loved the world
Standard Error:

Process Tree

system is lnxubuntu20

aarch64.elf (PID: 5421, Parent: 5346, MD5: 02e8e39e1b46472a60d128a6da84a2b8) Arguments: /tmp/aarch64.elf

aarch64.elf New Fork (PID: 5426, Parent: 5421)

dash New Fork (PID: 5424, Parent: 3584)

rm (PID: 5424, Parent: 3584, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.UQZ85IeCwK /tmp/tmp.GhkvEhVQNW /tmp/tmp.KIIuxCr2Mc

dash New Fork (PID: 5425, Parent: 3584)

rm (PID: 5425, Parent: 3584, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.UQZ85IeCwK /tmp/tmp.GhkvEhVQNW /tmp/tmp.KIIuxCr2Mc

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
aarch64.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
5426.1.0000000000400000.0000000000418000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5421.1.0000000000400000.0000000000418000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Joe Sandbox Signatures

• AV Detection
• Spreading
• 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: aarch64.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: aarch64.elf

ReversingLabs: Detection: 16%

Source: aarch64.elf

String: VA#VA,VA6VA=VABVAKVARVAZVAhVAmVAsVA/proc/%s/exe/proc/%s/cmdline/proc/%d/exe/proc/%d/cmdline/usr/bin/usr/sbin/system/mnt/mtd/app/org/z/zbin/home/app/dvr/bin/duksan/userfs/mnt/app/usr/etc/dvr/main/usr/local/var/bin/tmp/sqfs/z/bin/dvr/mnt/mtd/zconf/gm/bin/home/process/lib/snap/usr/lib/wgettftpcurl

Source: /tmp/aarch64.elf (PID: 5426)

Socket: 127.0.0.1:22448

Jump to behavior

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

Source: global traffic

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

Source: aarch64.elf, 5421.1.0000000000429000.0000000000438000.rw-.sdmp, aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	String found in binary or memory: https://motd.ubuntu.com
Source: aarch64.elf, 5421.1.0000000000429000.0000000000438000.rw-.sdmp, aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	String found in binary or memory: https://motd.ubuntu.comhe

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/aarch64.elf (PID: 5421)

SIGKILL sent: pid: 3699, result: successful

Jump to behavior

Source: classification engine

Classification label: mal68.troj.linELF@0/4@2/0

Persistence and Installation Behavior

Sample reads /proc/mounts (often used for finding a writable filesystem)

Source: /tmp/aarch64.elf (PID: 5421)

File: /proc/5421/mounts

Jump to behavior

Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/5265/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/230/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/232/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/234/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/236/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/237/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/238/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/239/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/914/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/19/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/240/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/3095/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/241/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/242/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/244/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/245/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/246/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/5/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/247/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/248/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/7/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/249/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/129/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/8/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/9/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1906/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/20/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/21/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/22/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/23/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/24/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/25/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/26/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/27/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/28/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/29/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/3420/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1482/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1480/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/250/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/371/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/130/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/251/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/131/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/252/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/132/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/253/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/254/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1238/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/134/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/255/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/256/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/257/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/378/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/3413/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/258/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/259/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/1475/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/936/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/30/cmdline	Jump to behavior
Source: /tmp/aarch64.elf (PID: 5421)	File opened: /proc/816/cmdline	Jump to behavior

Source: /usr/bin/dash (PID: 5424)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.UQZ85IeCwK /tmp/tmp.GhkvEhVQNW /tmp/tmp.KIIuxCr2Mc			Jump to behavior
Source: /usr/bin/dash (PID: 5425)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.UQZ85IeCwK /tmp/tmp.GhkvEhVQNW /tmp/tmp.KIIuxCr2Mc			Jump to behavior

Source: /tmp/aarch64.elf (PID: 5421)

Queries kernel information via 'uname':

Jump to behavior

Source: aarch64.elf, 5421.1.000055e3546c0000.000055e3547ab000.rw-.sdmp, aarch64.elf, 5426.1.000055e3546c0000.000055e3547ab000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/aarch64
Source: aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	Binary or memory string: vmware
Source: aarch64.elf, 5421.1.0000000000429000.0000000000438000.rw-.sdmp, aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	Binary or memory string: qemu-arm
Source: aarch64.elf, 5421.1.000055e3546c0000.000055e3547ab000.rw-.sdmp, aarch64.elf, 5426.1.000055e3546c0000.000055e3547ab000.rw-.sdmp	Binary or memory string: U1/etc/qemu-binfmt/aarch64O
Source: aarch64.elf, 5421.1.00007ffc9bf9c000.00007ffc9bfbd000.rw-.sdmp, aarch64.elf, 5426.1.00007ffc9bf9c000.00007ffc9bfbd000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-aarch64/tmp/aarch64.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/aarch64.elf
Source: aarch64.elf, 5426.1.00007ffc9bf9c000.00007ffc9bfbd000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	Binary or memory string: BWcDwXR44ZAkzslsN0 a1gCWFxqAHsFWFMWT3YA!a1gAWFxuAXsFWUgBRQAA!a1gAWFxuAXsAWUgKRXgA!a1gAWFxuAXsAWEgJR3IA!a10CWFxuAHsGWVcWQHAA!a10CWFxuAHsGWVcWQHUA!aFwAWF9uA3sGW0gLRgAA!aFwAWFlpG2QBW0gJTwAA!qemu-arm2QBW0gJTwAA!vmware!/bin/bash!/bin/dash!/bin/shh!/proc/mounts!a1oFWFxqDXsGXFQWRHFF!a1kBWF9pAHsAXUgMHFF!bFsYR15pG2cEXEgJT3cA!a1sOWFxpAHsFXFcWQXMA!a1kBWF9pAHsAXUgMXMA
Source: aarch64.elf, 5421.1.00007ffc9bf9c000.00007ffc9bfbd000.rw-.sdmp, aarch64.elf, 5426.1.00007ffc9bf9c000.00007ffc9bfbd000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-aarch64

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: aarch64.elf, type: SAMPLE
Source: Yara match	File source: 5426.1.0000000000400000.0000000000418000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5421.1.0000000000400000.0000000000418000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: aarch64.elf, type: SAMPLE
Source: Yara match	File source: 5426.1.0000000000400000.0000000000418000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 5421.1.0000000000400000.0000000000418000.r-x.sdmp, type: MEMORY

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	1 File Deletion	1 OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	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	1 File and Directory 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
aarch64.elf	17%	ReversingLabs	Linux.Backdoor.Mirai
aarch64.elf	100%	Avira	LINUX/GM.Mirai.MD

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	162.213.35.25	true	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
https://motd.ubuntu.com	aarch64.elf, 5421.1.0000000000429000.0000000000438000.rw-.sdmp, aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	false		high
https://motd.ubuntu.comhe	aarch64.elf, 5421.1.0000000000429000.0000000000438000.rw-.sdmp, aarch64.elf, 5426.1.0000000000429000.0000000000438000.rw-.sdmp	false		high

World Map of Contacted IPs

⊘No contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	mips.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	mips.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	sh4.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	morte.sh4.elf	Get hash	malicious	Gafgyt, Okiru	Browse	162.213.35.24
	arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.24

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.4GMFx8 (deleted)

Download File

Process:	/tmp/aarch64.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	17
Entropy (8bit):	3.8521687236032816
Encrypted:	false
SSDEEP:	3:Tg80l:Tg8c
MD5:	6EA4D0DB8D845A86C7B09CF0667A2CB5
SHA1:	CE980AAA61B3974BA1C86B48D56CAA6A2BE3E9A1
SHA-256:	9AA96AD31F9C5CB1D9FAA1939C33156D29F6EB7FF422C58541452493FEA19ECD
SHA-512:	A43E0EF92BDE7860BB256540693113AE6594F12017132F7408425FC03074FFE05121C4320FD6126F66802528583AB7A54D3FABBA3E70EB1D9DABFA816EBAFFD9
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/aarch64.elf.

/tmp/qemu-open.7J6Fw7 (deleted)

Download File

Process:	/tmp/aarch64.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	17
Entropy (8bit):	3.8521687236032816
Encrypted:	false
SSDEEP:	3:Tg80l:Tg8c
MD5:	6EA4D0DB8D845A86C7B09CF0667A2CB5
SHA1:	CE980AAA61B3974BA1C86B48D56CAA6A2BE3E9A1
SHA-256:	9AA96AD31F9C5CB1D9FAA1939C33156D29F6EB7FF422C58541452493FEA19ECD
SHA-512:	A43E0EF92BDE7860BB256540693113AE6594F12017132F7408425FC03074FFE05121C4320FD6126F66802528583AB7A54D3FABBA3E70EB1D9DABFA816EBAFFD9
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/aarch64.elf.

/tmp/qemu-open.ZRPUP7 (deleted)

Download File

Process:	/tmp/aarch64.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	17
Entropy (8bit):	3.8521687236032816
Encrypted:	false
SSDEEP:	3:Tg80l:Tg8c
MD5:	6EA4D0DB8D845A86C7B09CF0667A2CB5
SHA1:	CE980AAA61B3974BA1C86B48D56CAA6A2BE3E9A1
SHA-256:	9AA96AD31F9C5CB1D9FAA1939C33156D29F6EB7FF422C58541452493FEA19ECD
SHA-512:	A43E0EF92BDE7860BB256540693113AE6594F12017132F7408425FC03074FFE05121C4320FD6126F66802528583AB7A54D3FABBA3E70EB1D9DABFA816EBAFFD9
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/aarch64.elf.

/tmp/qemu-open.pYcfw8 (deleted)

Download File

Process:	/tmp/aarch64.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	17
Entropy (8bit):	3.8521687236032816
Encrypted:	false
SSDEEP:	3:Tg80l:Tg8c
MD5:	6EA4D0DB8D845A86C7B09CF0667A2CB5
SHA1:	CE980AAA61B3974BA1C86B48D56CAA6A2BE3E9A1
SHA-256:	9AA96AD31F9C5CB1D9FAA1939C33156D29F6EB7FF422C58541452493FEA19ECD
SHA-512:	A43E0EF92BDE7860BB256540693113AE6594F12017132F7408425FC03074FFE05121C4320FD6126F66802528583AB7A54D3FABBA3E70EB1D9DABFA816EBAFFD9
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/aarch64.elf.

Static File Info

General

File type:	ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.372082364334645
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	aarch64.elf
File size:	100'224 bytes
MD5:	c63a3be8a87bf285ddce9a1feb79683b
SHA1:	8e65172ec55d4e69d3c2febca9130600c1abf10b
SHA256:	ff8a30a0f4fb0b7ccb822056e230303411ffc148af8786a3164080e67ef91a74
SHA512:	e2fb38a8919936beec9556df0aa2bd1b3a2202d8130344f625dac42f438b74ae58dcc35ba2ed8956c8b5a8ee7ece4301551a0a251c09ff802f16808820000c65
SSDEEP:	1536:7iy7Gty+WhSFoq2DGYSiCWojW4GsP0YEEme/VYVnfJzkNvDW:7iyE+q2DPzoIC0YEEmuyzabW
TLSH:	F1A38C783A4E3D92D3C7D33DCF498E71712B74B4CA6193A1BE01439EC19ADEA9AE0541
File Content Preview:	.ELF......................@.....@...................@.8...@.......................@.......@......t.......t................................B.......B..... .........................................B.......B.............................Q.td...................

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	AArch64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400cc0
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	4
Section Header Offset:	99456
Section Header Size:	64
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	0x400158	0x158	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x400180	0x180	0x152d0	0x0	0x6	AX	64
.fini	PROGBITS	0x415450	0x15450	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x415460	0x15460	0x2060	0x0	0x2	A	16
.tbss	NOBITS	0x427f08	0x17f08	0x8	0x0	0x403	WAT	4
.init_array	INIT_ARRAY	0x427f08	0x17f08	0x8	0x8	0x3	WA	8
.fini_array	FINI_ARRAY	0x427f10	0x17f10	0x8	0x8	0x3	WA	8
.got	PROGBITS	0x427f18	0x17f18	0xd0	0x8	0x3	WA	8
.data	PROGBITS	0x428000	0x18000	0x428	0x0	0x3	WA	8
.bss	NOBITS	0x428428	0x18428	0x7e60	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x18428	0x53	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	0x174c0	0x174c0	6.5327	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x17f08	0x427f08	0x427f08	0x520	0x8380	2.8860	0x6	RW	0x10000	.tbss .init_array .fini_array .got .data .bss
TLS	0x17f08	0x427f08	0x427f08	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x8

Network Behavior

Download Network PCAP: filtered – full

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 24, 2025 06:15:54.386185884 CET	37787	53	192.168.2.13	1.1.1.1
Mar 24, 2025 06:15:54.386234045 CET	59801	53	192.168.2.13	1.1.1.1
Mar 24, 2025 06:15:54.483947039 CET	53	37787	1.1.1.1	192.168.2.13
Mar 24, 2025 06:15:54.484105110 CET	53	59801	1.1.1.1	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 24, 2025 06:15:54.386185884 CET	192.168.2.13	1.1.1.1	0x9446	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Mar 24, 2025 06:15:54.386234045 CET	192.168.2.13	1.1.1.1	0xf713	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
Mar 24, 2025 06:15:54.483947039 CET	1.1.1.1	192.168.2.13	0x9446	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Mar 24, 2025 06:15:54.483947039 CET	1.1.1.1	192.168.2.13	0x9446	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: aarch64.elf PID: 5421, Parent PID: 5346

General

Start time (UTC):	05:15:49
Start date (UTC):	24/03/2025
Path:	/tmp/aarch64.elf
Arguments:	/tmp/aarch64.elf
File size:	5706200 bytes
MD5 hash:	02e8e39e1b46472a60d128a6da84a2b8

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Signal Sent

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: aarch64.elf PID: 5426, Parent PID: 5421

General

Start time (UTC):	05:15:51
Start date (UTC):	24/03/2025
Path:	/tmp/aarch64.elf
Arguments:	-
File size:	5706200 bytes
MD5 hash:	02e8e39e1b46472a60d128a6da84a2b8

File Activities

File Opened

Process Activities

Signal Sent

Thread Sleep

Network Activities

Socket Listening

Chronological Activities

Analysis Process: dash PID: 5424, Parent PID: 3584

General

Start time (UTC):	05:15:51
Start date (UTC):	24/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5424, Parent PID: 3584

General

Start time (UTC):	05:15:51
Start date (UTC):	24/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.UQZ85IeCwK /tmp/tmp.GhkvEhVQNW /tmp/tmp.KIIuxCr2Mc
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 5425, Parent PID: 3584

General

Start time (UTC):	05:15:51
Start date (UTC):	24/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5425, Parent PID: 3584

General

Start time (UTC):	05:15:51
Start date (UTC):	24/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.UQZ85IeCwK /tmp/tmp.GhkvEhVQNW /tmp/tmp.KIIuxCr2Mc
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
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 dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password, from the operating system and software. Credentials can then be used to perform Lateral Movement and access restricted information.
Tactics:	Credential Access
Data Sources:	Active Directory: Active Directory Object Access, Command: Command Execution, File: File Access, Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow, Process: OS API Execution, Process: Process Access, Process: Process Creation, Windows Registry: Windows Registry Key Access
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 enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system. Adversaries may use the information from File and Directory 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, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Network, 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 aarch64.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

Spreading

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

URLs from Memory and Binaries

World Map of Contacted IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.4GMFx8 (deleted)

/tmp/qemu-open.7J6Fw7 (deleted)

/tmp/qemu-open.ZRPUP7 (deleted)

/tmp/qemu-open.pYcfw8 (deleted)

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: aarch64.elf PID: 5421, Parent PID: 5346

General

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Signal Sent

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Linux Analysis Report
aarch64.elf