Edit tour

Linux Analysis Report
arm.elf

Overview

General Information

Sample name:	arm.elf
Analysis ID:	1647452
MD5:	84c85d6b37dd1d2c1f5381eeaa353d69
SHA1:	71e8829b3c31108982d052b22dcf66639dc3fd99
SHA256:	bad72c78446d02079cf1bf3bb25bcb274c52ca009b3d00e0cd07ed2ffd7ec83c
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	60
Range:	0 - 100

Signatures

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

Found strings indicative of a multi-platform dropper

Sample has stripped symbol table

Sample listens on a socket

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1647452
Start date and time:	2025-03-24 21:38:15 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 40s
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:	arm.elf
Detection:	MAL
Classification:	mal60.troj.linELF@0/4@0/0

Runtime Messages

Command:	/tmp/arm.elf
PID:	6212
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	For God so loved the world
Standard Error:

Process Tree

system is lnxubuntu20

arm.elf (PID: 6212, Parent: 6128, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm.elf

arm.elf New Fork (PID: 6215, Parent: 6212)

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
arm.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
6212.1.00007f9008017000.00007f900802e000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
6215.1.00007f9008017000.00007f900802e000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

String: /proc/%s/exe/proc/%s/cmdline/proc/%d/exe/proc/%d/cmdlinewgettftpcurlftp/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/x

Source: /tmp/arm.elf (PID: 6215)

Socket: 127.0.0.1:22448

Jump to behavior

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

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: 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: arm.elf, 6212.1.00007f9008036000.00007f9008040000.rw-.sdmp, arm.elf, 6215.1.00007f9008036000.00007f9008040000.rw-.sdmp

String found in binary or memory: http://17365637265742070617373776F7264206D656D6F721/t/wget.sh

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal60.troj.linELF@0/4@0/0

Persistence and Installation Behavior

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

Source: /tmp/arm.elf (PID: 6212)

File: /proc/6212/mounts

Jump to behavior

Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1582/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/3088/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/230/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/232/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1579/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1699/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/234/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1335/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1698/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1334/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1576/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/2302/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/236/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/237/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/910/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/912/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/2307/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/918/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1594/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1349/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1/maps	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1344/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1465/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1586/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/248/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/249/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1463/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/9/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/801/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/20/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/21/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1900/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/22/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/23/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/24/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/25/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/26/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/27/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/28/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/29/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/491/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/250/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/130/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/251/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/252/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/132/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/253/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/254/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/255/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/256/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1599/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/257/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1477/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/379/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/258/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1476/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/259/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1475/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/936/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/30/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/2208/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/35/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1809/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/1494/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/260/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/261/cmdline	Jump to behavior
Source: /tmp/arm.elf (PID: 6212)	File opened: /proc/141/cmdline	Jump to behavior

Source: /tmp/arm.elf (PID: 6212)

Queries kernel information via 'uname':

Jump to behavior

Source: arm.elf, 6215.1.00007f9008036000.00007f9008040000.rw-.sdmp	Binary or memory string: vmwarem
Source: arm.elf, 6212.1.00007f9008036000.00007f9008040000.rw-.sdmp, arm.elf, 6215.1.00007f9008036000.00007f9008040000.rw-.sdmp	Binary or memory string: qemu-arm)Zm6vnZ5U4mf8vApyWcDwXR44ZAkzslsN)t
Source: arm.elf, 6215.1.00007f9008036000.00007f9008040000.rw-.sdmp	Binary or memory string: vmware
Source: arm.elf, 6212.1.000055e32a41e000.000055e32a58e000.rw-.sdmp, arm.elf, 6215.1.000055e32a41e000.000055e32a58e000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm.elf, 6212.1.00007f9008036000.00007f9008040000.rw-.sdmp, arm.elf, 6215.1.00007f9008036000.00007f9008040000.rw-.sdmp	Binary or memory string: qemu-arm
Source: arm.elf, 6212.1.000055e32a41e000.000055e32a58e000.rw-.sdmp, arm.elf, 6215.1.000055e32a41e000.000055e32a58e000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm.elf, 6212.1.00007fff7545f000.00007fff75480000.rw-.sdmp	Binary or memory string: U/tmp/qemu-open.FXBDkT:%
Source: arm.elf, 6212.1.00007fff7545f000.00007fff75480000.rw-.sdmp, arm.elf, 6215.1.00007fff7545f000.00007fff75480000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm.elf, 6212.1.00007fff7545f000.00007fff75480000.rw-.sdmp, arm.elf, 6215.1.00007fff7545f000.00007fff75480000.rw-.sdmp	Binary or memory string: mx86_64/usr/bin/qemu-arm/tmp/arm.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/arm.elf
Source: arm.elf, 6212.1.00007fff7545f000.00007fff75480000.rw-.sdmp	Binary or memory string: /tmp/qemu-open.FXBDkT
Source: arm.elf, 6215.1.00007fff7545f000.00007fff75480000.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: arm.elf, type: SAMPLE
Source: Yara match	File source: 6212.1.00007f9008017000.00007f900802e000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6215.1.00007f9008017000.00007f900802e000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: arm.elf, type: SAMPLE
Source: Yara match	File source: 6212.1.00007f9008017000.00007f900802e000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6215.1.00007f9008017000.00007f900802e000.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	Direct Volume Access	1 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	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
arm.elf	27%	Virustotal		Browse
arm.elf	22%	ReversingLabs	Linux.Trojan.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://17365637265742070617373776F7264206D656D6F721/t/wget.sh	arm.elf, 6212.1.00007f9008036000.00007f9008040000.rw-.sdmp, arm.elf, 6215.1.00007f9008036000.00007f9008040000.rw-.sdmp	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
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
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
	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
	sshd.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	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
	sshd.elf	Get hash	malicious	Unknown	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	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
	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
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
CANONICAL-ASGB	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
	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
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26
INIT7CH	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
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/tmp/qemu-open.94LEpV (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

/tmp/qemu-open.CNjSCT (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

/tmp/qemu-open.FXBDkT (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

/tmp/qemu-open.fGpBKU (deleted)

Download File

Process:	/tmp/arm.elf
File Type:	ASCII text, with no line terminators
Category:	dropped
Size (bytes):	13
Entropy (8bit):	3.3927474104487847
Encrypted:	false
SSDEEP:	3:Tg7G:Tgy
MD5:	060C950602AE5DFAF583473721C0D328
SHA1:	91D13B439729088DC17F1E0519970D82C56F2B07
SHA-256:	F8D4586FDF6230A2D5F431EF44BABDF37F6D7CEDBB3560702B0DC8493DD44EE3
SHA-512:	000D50E0A5736B0AB3B1BF61F55911914808FA197365B10F61F24096E2959ADAC2C3FF0D9ED226AD99934093F9FDD1C7035A22EEB5091DF75402A0A26E7A84AC
Malicious:	false
Reputation:	moderate, very likely benign file
Preview:	/tmp/arm.elf.

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), dynamically linked, stripped
Entropy (8bit):	6.12612618042579
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm.elf
File size:	93'028 bytes
MD5:	84c85d6b37dd1d2c1f5381eeaa353d69
SHA1:	71e8829b3c31108982d052b22dcf66639dc3fd99
SHA256:	bad72c78446d02079cf1bf3bb25bcb274c52ca009b3d00e0cd07ed2ffd7ec83c
SHA512:	8d71b54fb08141a2cf55c3c12476b4ef94736f970a11b1c1c17cd656c063bc17e6bfe4b2180da2a3d0647ebf4067556a8dac586a62d8856ebef54fa64eb8f345
SSDEEP:	1536:11z54cUCdC7rnVoq2j0Pd5OV6vcIcvtkEG2NkEz05Uwvbi1KMZFwpo/FiHcuyG9b:7dN9dCHVoq2j0Pd5WufEG2Nk75UwvTeG
TLSH:	B9932959BC918E52C6C106BBFF1F828D772613E8E2DA7103DD255F253B8B62A0E7B051
File Content Preview:	.ELF...a..........(.........4....i......4. ...(......................f...f...............f...f...f.......i................................................-...L."....Q..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 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:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8190
Flags:	0x202
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	92628
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x18	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x1466c	0x0	0x6	AX	16
.fini	PROGBITS	0x1c71c	0x1471c	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x1c730	0x14730	0x1f68	0x0	0x2	A	4
.ctors	PROGBITS	0x2669c	0x1669c	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x266a4	0x166a4	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x266b0	0x166b0	0x2e4	0x0	0x3	WA	4
.bss	NOBITS	0x26994	0x16994	0x660c	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x16994	0x3e	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	0x16698	0x16698	6.1431	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x1669c	0x2669c	0x2669c	0x2f8	0x6904	3.7768	0x6	RW	0x8000	.ctors .dtors .data .bss
DYNAMIC	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 7
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 24, 2025 21:38:58.911456108 CET	43928	443	192.168.2.23	91.189.91.42
Mar 24, 2025 21:39:04.286856890 CET	42836	443	192.168.2.23	91.189.91.43
Mar 24, 2025 21:39:05.566725969 CET	42516	80	192.168.2.23	109.202.202.202
Mar 24, 2025 21:39:19.132833958 CET	43928	443	192.168.2.23	91.189.91.42
Mar 24, 2025 21:39:31.419187069 CET	42836	443	192.168.2.23	91.189.91.43
Mar 24, 2025 21:39:35.514491081 CET	42516	80	192.168.2.23	109.202.202.202
Mar 24, 2025 21:40:00.087105989 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: arm.elf PID: 6212, Parent PID: 6128

General

Start time (UTC):	20:38:56
Start date (UTC):	24/03/2025
Path:	/tmp/arm.elf
Arguments:	/tmp/arm.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Socket Connecting

Chronological Activities

Analysis Process: arm.elf PID: 6215, Parent PID: 6212

General

Start time (UTC):	20:38:59
Start date (UTC):	24/03/2025
Path:	/tmp/arm.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Source: arm.elf	Virustotal: Detection: 26%			Perma Link
Source: arm.elf	ReversingLabs: Detection: 22%

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 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 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 arm.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

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

/tmp/qemu-open.94LEpV (deleted)

/tmp/qemu-open.CNjSCT (deleted)

/tmp/qemu-open.FXBDkT (deleted)

/tmp/qemu-open.fGpBKU (deleted)

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: arm.elf PID: 6212, Parent PID: 6128

General

File Activities

File Opened

File Deleted

File Read

File Written

File Moved

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Thread Sleep

System Activities

Query System Information (uname)

Network Activities

Linux Analysis Report
arm.elf