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Linux Analysis Report
main_arm7.elf

Overview

General Information

Sample name:	main_arm7.elf
Analysis ID:	1622966
MD5:	c18c67a32e6e8b544318f32a9ca0a5a0
SHA1:	a5831611c4eab6b5bf6b1f25c54d50d603922b3a
SHA256:	82503a647c85f2356b8d999b471ddc4b66e5dfcfa65d004ab8a5634bc646c4d0
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	68
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

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:	1622966
Start date and time:	2025-02-24 18:47:27 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 26s
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:	main_arm7.elf
Detection:	MAL
Classification:	mal68.troj.evad.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/main_arm7.elf
PID:	5418
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

main_arm7.elf (PID: 5418, Parent: 5341, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/main_arm7.elf

dash New Fork (PID: 5434, Parent: 3588)

rm (PID: 5434, Parent: 3588, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.qQ9pM11Fq9 /tmp/tmp.Sec5tYd1rj /tmp/tmp.SvcS1NzdpT

dash New Fork (PID: 5435, Parent: 3588)

cat (PID: 5435, Parent: 3588, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.qQ9pM11Fq9

dash New Fork (PID: 5436, Parent: 3588)

head (PID: 5436, Parent: 3588, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5437, Parent: 3588)

tr (PID: 5437, Parent: 3588, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5438, Parent: 3588)

cut (PID: 5438, Parent: 3588, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5439, Parent: 3588)

cat (PID: 5439, Parent: 3588, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.qQ9pM11Fq9

dash New Fork (PID: 5440, Parent: 3588)

head (PID: 5440, Parent: 3588, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5441, Parent: 3588)

tr (PID: 5441, Parent: 3588, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5442, Parent: 3588)

cut (PID: 5442, Parent: 3588, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5443, Parent: 3588)

rm (PID: 5443, Parent: 3588, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.qQ9pM11Fq9 /tmp/tmp.Sec5tYd1rj /tmp/tmp.SvcS1NzdpT

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
5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x17d88:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17d9c:$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 0x17db0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17dc4:$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 0x17dd8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17dec:$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 0x17e00:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17e14:$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 0x17e28:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17e3c:$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 0x17e50:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17e64:$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 0x17e78:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17e8c:$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 0x17ea0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17eb4:$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 0x17ec8:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17edc:$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 0x17ef0:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x17f04:$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 0x17f18:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x17c48:$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
Process Memory Space: main_arm7.elf PID: 5418	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: main_arm7.elf PID: 5418	Linux_Trojan_Gafgyt_28a2fe0c	unknown	unknown	0x68b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x69f:$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 0x6b3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x6c7:$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 0x6db:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x6ef:$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 0x703:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x717:$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 0x72b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x73f:$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 0x753:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x767:$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 0x77b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x78f:$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 0x7a3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7b7:$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 0x7cb:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x7df:$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 0x7f3:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F 0x807:$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 0x81b:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
Process Memory Space: main_arm7.elf PID: 5418	Linux_Trojan_Gafgyt_ea92cca8	unknown	unknown	0x571:$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 1 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Compliance
• 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: main_arm7.elf	ReversingLabs: Detection: 23%
Source: main_arm7.elf	Virustotal: Detection: 16%			Perma Link

Source: unknown

HTTPS traffic detected: 34.254.182.186:443 -> 192.168.2.13:54632 version: TLS 1.2

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26

Source: main_arm7.elf

String found in binary or memory: http://upx.sf.net

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 54632
Source: unknown	Network traffic detected: HTTP traffic on port 48202 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 54632 -> 443

Source: unknown

HTTPS traffic detected: 34.254.182.186:443 -> 192.168.2.13:54632 version: TLS 1.2

System Summary

Malicious sample detected (through community Yara rule)

Source: 5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown
Source: Process Memory Space: main_arm7.elf PID: 5418, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: main_arm7.elf PID: 5418, type: MEMORYSTR	Matched rule: Linux_Trojan_Gafgyt_ea92cca8 Author: unknown

Source: LOAD without section mappings

Program segment: 0x8000

Source: 5418.1.00007f4d84017000.00007f4d84031000.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: 5418.1.00007f4d84017000.00007f4d84031000.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: Process Memory Space: main_arm7.elf PID: 5418, 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: main_arm7.elf PID: 5418, 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: mal68.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 4.24 Copyright (C) 1996-2024 the UPX Team. All Rights Reserved. $

Source: /usr/bin/dash (PID: 5434)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.qQ9pM11Fq9 /tmp/tmp.Sec5tYd1rj /tmp/tmp.SvcS1NzdpT			Jump to behavior
Source: /usr/bin/dash (PID: 5443)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.qQ9pM11Fq9 /tmp/tmp.Sec5tYd1rj /tmp/tmp.SvcS1NzdpT			Jump to behavior

Source: main_arm7.elf	Submission file: segment LOAD with 7.8804 entropy (max. 8.0)
Source: main_arm7.elf	Submission file: segment LOAD with 7.9748 entropy (max. 8.0)

Source: /tmp/main_arm7.elf (PID: 5418)

Queries kernel information via 'uname':

Jump to behavior

Source: main_arm7.elf, 5418.1.00007ffdba6b3000.00007ffdba6d4000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/main_arm7.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/main_arm7.elf
Source: main_arm7.elf, 5418.1.000055802b973000.000055802bac3000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: main_arm7.elf, 5418.1.000055802b973000.000055802bac3000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: main_arm7.elf, 5418.1.00007ffdba6b3000.00007ffdba6d4000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: 5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: main_arm7.elf PID: 5418, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: 5418.1.00007f4d84017000.00007f4d84031000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: main_arm7.elf PID: 5418, 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
main_arm7.elf	24%	ReversingLabs	Linux.Trojan.Mirai
main_arm7.elf	17%	Virustotal		Browse

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://upx.sf.net	main_arm7.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	Flag	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false
34.254.182.186	unknown	United States		16509	AMAZON-02US	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	main_sh4.elf	Get hash	malicious	Mirai	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	main_mips.elf	Get hash	malicious	Mirai	Browse
	debug.dbg.elf	Get hash	malicious	Mirai	Browse
	mpsl.elf	Get hash	malicious	Mirai	Browse
	strix.arm5.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	i686.elf	Get hash	malicious	Mirai	Browse
	nsharm.elf	Get hash	malicious	Unknown	Browse
	nsharm7.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
34.254.182.186	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	rebirth.ppc.elf	Get hash	malicious	Gafgyt	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	jackmyi686.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	rebirth.arm6.elf	Get hash	malicious	Gafgyt	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	x86.elf	Get hash	malicious	Mirai, Moobot	Browse
	armv7l.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AMAZON-02US	random.exe	Get hash	malicious	Credential Flusher	Browse	52.26.30.181
	194.85.251.31-x86-2025-02-24T17_35_13.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
	http://multitran.com/m.exe	Get hash	malicious	Unknown	Browse	52.30.155.174
	https://f.io/bUMg8j0P	Get hash	malicious	HTMLPhisher	Browse	76.76.21.93
	https://f.io/bUMg8j0P	Get hash	malicious	HTMLPhisher, Invisible JS	Browse	108.138.26.13
	PDFOneStartLive.msi	Get hash	malicious	Unknown	Browse	143.204.98.59
	https://sxdcfvg.blob.core.windows.net/swfgm/slp.html	Get hash	malicious	Phisher	Browse	34.243.154.178
	main_arm.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
	4338471.pdf	Get hash	malicious	Unknown	Browse	34.243.103.222
	na.elf	Get hash	malicious	Prometei	Browse	54.171.230.55
CANONICAL-ASGB	194.85.251.31-x86-2025-02-24T17_35_13.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	main_x86.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_sh4.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_arm6.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_mips.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	main_x86_64.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.985922497032365
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	main_arm7.elf
File size:	67'912 bytes
MD5:	c18c67a32e6e8b544318f32a9ca0a5a0
SHA1:	a5831611c4eab6b5bf6b1f25c54d50d603922b3a
SHA256:	82503a647c85f2356b8d999b471ddc4b66e5dfcfa65d004ab8a5634bc646c4d0
SHA512:	de1821b80d8b554aeb1dd8f65ac34549757345e9e2082d25f08fb39c2877cbffbb18b4b3181226e6f635ab8a3a97d10c52584e56b25a41422bc7fbc1b24b3183
SSDEEP:	1536:wL6edSDVuSX0CKKoiQdrAlB4rf/fU8sEc9vFhezl4zJ3U:26ed6uSX0h+Srns8ZSheC9U
TLSH:	0B6302BBD3C1BA6AF2D71077E3BCCA91FE064570F5D05D2F982422848BE4B4970E9895
File Content Preview:	.ELF..............(.........4...........4. .........................................................u...u...........Q.td.............................8..UPX!....................m..........?.E.h;....#..$...o......qr.....c5j..*..K.t[-..rD.S{.L .[....@...=..:

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x3a2fc
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	0
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	0x1000	0x27f0c	7.8804	0x6	RW	0x8000
LOAD	0x0	0x30000	0x30000	0xb575	0xb575	7.9748	0x5	R E	0x8000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Feb 24, 2025 18:48:19.381875038 CET	48202	443	192.168.2.13	185.125.190.26
Feb 24, 2025 18:48:26.057250977 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:26.057265997 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:26.057277918 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:26.057286024 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:26.057476997 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.057476997 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.057476997 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.057503939 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.060201883 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.065301895 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:26.277136087 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:26.277323961 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.277647018 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:26.282644987 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:27.075448990 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:27.075586081 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:27.077267885 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:27.082581997 CET	443	54632	34.254.182.186	192.168.2.13
Feb 24, 2025 18:48:27.082706928 CET	54632	443	192.168.2.13	34.254.182.186
Feb 24, 2025 18:48:51.382052898 CET	48202	443	192.168.2.13	185.125.190.26

HTTPS Connections

Timestamp	Source IP	Source Port	Dest IP	Dest Port	Subject	Issuer	Not Before	Not After	JA3 SSL Client Fingerprint	JA3 SSL Client Digest
Feb 24, 2025 18:48:26.057277918 CET	34.254.182.186	443	192.168.2.13	54632	CN=motd.ubuntu.com CN=R11, O=Let's Encrypt, C=US	CN=R11, O=Let's Encrypt, C=US CN=ISRG Root X1, O=Internet Security Research Group, C=US	Sun Jan 05 09:21:36 CET 2025 Wed Mar 13 01:00:00 CET 2024	Sat Apr 05 10:21:35 CEST 2025 Sat Mar 13 00:59:59 CET 2027
Feb 24, 2025 18:48:26.057277918 CET	34.254.182.186	443	192.168.2.13	54632	CN=R11, O=Let's Encrypt, C=US	CN=ISRG Root X1, O=Internet Security Research Group, C=US	Wed Mar 13 01:00:00 CET 2024	Sat Mar 13 00:59:59 CET 2027

System Behavior

Analysis Process: main_arm7.elf PID: 5418, Parent PID: 5341

General

Start time (UTC):	17:48:07
Start date (UTC):	24/02/2025
Path:	/tmp/main_arm7.elf
Arguments:	/tmp/main_arm7.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Read

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5434, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5434, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.qQ9pM11Fq9 /tmp/tmp.Sec5tYd1rj /tmp/tmp.SvcS1NzdpT
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 5435, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 5435, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.qQ9pM11Fq9
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5436, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: head PID: 5436, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5437, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: tr PID: 5437, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5438, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cut PID: 5438, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5439, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 5439, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.qQ9pM11Fq9
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5440, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: head PID: 5440, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5441, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: tr PID: 5441, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5442, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cut PID: 5442, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5443, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5443, Parent PID: 3588

General

Start time (UTC):	17:48:26
Start date (UTC):	24/02/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.qQ9pM11Fq9 /tmp/tmp.Sec5tYd1rj /tmp/tmp.SvcS1NzdpT
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 main_arm7.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

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

TCP Packets

HTTPS Connections

System Behavior

Analysis Process: main_arm7.elf PID: 5418, Parent PID: 5341

General

File Activities

File Opened

File Read

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5434, Parent PID: 3588

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5434, Parent PID: 3588

General

File Activities

File Opened

File Deleted

Linux Analysis Report
main_arm7.elf