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Linux Analysis Report
x86.elf

Overview

General Information

Sample name:	x86.elf
Analysis ID:	1646139
MD5:	22834e5a7f735f91e6a4287270738076
SHA1:	ffeb3c2033ca242b1a0a938e219449ff01a737e3
SHA256:	e23ffbd31fb401b2b403a0c2ddf088b3bf51c43ef6666500b344c0b0965a0256
Tags:	elfuser-abuse_ch
Infos:

Detection

Mirai

Score:	76
Range:	0 - 100

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Connects to many ports of the same IP (likely port scanning)

Sample deletes itself

Sample is packed with UPX

Detected TCP or UDP traffic on non-standard ports

ELF contains segments with high entropy indicating compressed/encrypted content

Sample contains only a LOAD segment without any section mappings

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

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1646139
Start date and time:	2025-03-23 12:20:25 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 17s
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:	x86.elf
Detection:	MAL
Classification:	mal76.troj.evad.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/x86.elf
PID:	5435
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	Obliterate You
Standard Error:

Process Tree

system is lnxubuntu20

x86.elf (PID: 5435, Parent: 5357, MD5: 22834e5a7f735f91e6a4287270738076) Arguments: /tmp/x86.elf

x86.elf New Fork (PID: 5436, Parent: 5435)

x86.elf New Fork (PID: 5437, Parent: 5436)

x86.elf New Fork (PID: 5438, Parent: 5437)

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
5435.1.0000000008048000.0000000008054000.r-x.sdmp	JoeSecurity_Mirai_9	Yara detected Mirai	Joe Security
5435.1.0000000008048000.0000000008054000.r-x.sdmp	Linux_Trojan_Mirai_b14f4c5d	unknown	unknown	0x4150:$a: 53 31 DB 8B 4C 24 0C 8B 54 24 08 83 F9 01 76 15 66 8B 02 83 E9 02 25 FF FF 00 00 83 C2 02 01 C3 83 F9 01 77 EB 49 75 05 0F BE 02 01 C3
5435.1.0000000008048000.0000000008054000.r-x.sdmp	Linux_Trojan_Mirai_88de437f	unknown	unknown	0x5e12:$a: 24 08 8B 4C 24 04 85 D2 74 0D 31 C0 89 F6 C6 04 08 00 40 39 D0
5435.1.0000000008048000.0000000008054000.r-x.sdmp	Linux_Trojan_Mirai_389ee3e9	unknown	unknown	0x8f85:$a: 89 45 00 EB 2C 8B 4B 04 8B 13 8B 7B 18 8B 01 01 02 8B 02 83
5435.1.0000000008048000.0000000008054000.r-x.sdmp	Linux_Trojan_Mirai_cc93863b	unknown	unknown	0x77e7:$a: C3 57 8B 44 24 0C 8B 4C 24 10 8B 7C 24 08 F3 AA 8B 44 24 08
5435.1.0000000008048000.0000000008054000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x5de2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
Click to see the 1 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Data Obfuscation
• Hooking and other Techniques for Hiding and Protection
• 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: x86.elf	Virustotal: Detection: 39%			Perma Link
Source: x86.elf	ReversingLabs: Detection: 44%

Networking

Connects to many ports of the same IP (likely port scanning)

Source: global traffic

TCP traffic: 198.98.51.68 ports 1,2,3,4,5,23451

Source: global traffic

TCP traffic: 192.168.2.13:38802 -> 198.98.51.68:23451

Source: global traffic

TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68
Source: unknown	TCP traffic detected without corresponding DNS query: 198.98.51.68

Source: x86.elf

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

Source: unknown

Network traffic detected: HTTP traffic on port 48202 -> 443

System Summary

Malicious sample detected (through community Yara rule)

Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_b14f4c5d Author: unknown
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f Author: unknown
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown

Source: LOAD without section mappings

Program segment: 0xc01000

Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_b14f4c5d os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = a70d052918dd2fbc66db241da6438015130f0fb6929229bfe573546fe98da817, id = b14f4c5d-054f-46e6-9fa8-3588f1ef68b7, last_modified = 2021-09-16
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_88de437f reference_sample = 8dc745a6de6f319cd6021c3e147597315cc1be02099d78fc8aae94de0e1e4bc6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = c19eb595c2b444a809bef8500c20342c9f46694d3018e268833f9b884133a1ea, id = 88de437f-9c98-4e1d-96c0-7b433c99886a, last_modified = 2021-09-16
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26

Source: classification engine

Classification label: mal76.troj.evad.linELF@0/0@0/0

Data Obfuscation

Sample is packed with UPX

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

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/x86.elf (PID: 5435)

File: /tmp/x86.elf

Jump to behavior

Source: x86.elf

Submission file: segment LOAD with 7.8806 entropy (max. 8.0)

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match

File source: 5435.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Mirai

Source: Yara match

File source: 5435.1.0000000008048000.0000000008054000.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	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	11 Obfuscated Files or Information	OS Credential Dumping	System Service 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 Non-Standard Port	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
x86.elf	39%	Virustotal		Browse
x86.elf	44%	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://upx.sf.net	x86.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
198.98.51.68	unknown	United States		53667	PONYNETUS	true

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	arm5.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.arm6.elf	Get hash	malicious	Mirai	Browse
	arm.elf	Get hash	malicious	Mirai	Browse
	tftp.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	wget.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	galt.arm7.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	wget.elf	Get hash	malicious	Gafgyt	Browse
	x.rar.elf	Get hash	malicious	Xmrig	Browse
198.98.51.68	mpsl.elf	Get hash	malicious	Mirai	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	i486.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Mirai	Browse
	x86_64.elf	Get hash	malicious	Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	mpsl.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	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	185.125.190.26
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	efefa7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
PONYNETUS	mpsl.elf	Get hash	malicious	Mirai	Browse	198.98.51.68
	mips.elf	Get hash	malicious	Mirai	Browse	198.98.51.68
	i486.elf	Get hash	malicious	Unknown	Browse	198.98.51.68
	arm7.elf	Get hash	malicious	Mirai	Browse	198.98.51.68
	x86_64.elf	Get hash	malicious	Mirai	Browse	198.98.51.68
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse	209.141.40.172
	boatnet.m68k.elf	Get hash	malicious	Mirai	Browse	209.141.40.172
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse	209.141.40.172
	boatnet.mips.elf	Get hash	malicious	Mirai	Browse	209.141.40.172
	boatnet.x86.elf	Get hash	malicious	Mirai	Browse	209.141.40.172

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, Intel 80386, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.8756568227243555
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	x86.elf
File size:	26'404 bytes
MD5:	22834e5a7f735f91e6a4287270738076
SHA1:	ffeb3c2033ca242b1a0a938e219449ff01a737e3
SHA256:	e23ffbd31fb401b2b403a0c2ddf088b3bf51c43ef6666500b344c0b0965a0256
SHA512:	3d3c0cf3225e3cefdc99d921d7e5954dd9a01916f8c43e93842bf8044d91c8aed4dbe3c5f6a1b663aab9812797f5f1b013b7e6f7ef7efc22173d229b321107ef
SSDEEP:	768:fYYdmCv+1xlRd6lX5XdXbJ+4oehjEN5kIES8Wt:fNdme+XlRd6lVdLFoEA5k6
TLSH:	81C2E135298F471EEF15733BE26F459553FA3A810B12DB89FA0C4E8E5C51622067E2CE
File Content Preview:	.ELF....................8n..4...........4. ...(......................f...f..............@...@m..@m..................Q.td................................UPX!........L...L.......Z........?d..ELF.......d.......4....4. (.......k.-.#.<..............@..\|..-d..l

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Intel 80386
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0xc06e38
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	0
Section Header Size:	40
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0xc01000	0xc01000	0x661b	0x661b	7.8806	0x5	R E	0x1000
LOAD	0xd40	0x8056d40	0x8056d40	0x0	0x0	0.0000	0x6	RW	0x1000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 18
• 23451 undefined
• 443 (HTTPS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 23, 2025 12:21:06.923041105 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:07.014144897 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:07.014204979 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:07.950474024 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:08.040258884 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:08.040322065 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:08.040364027 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:08.130317926 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:08.130367994 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:08.220668077 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:17.230504036 CET	48202	443	192.168.2.13	185.125.190.26
Mar 23, 2025 12:21:18.049401999 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:18.139622927 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:18.139686108 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:18.139725924 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:33.233097076 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:33.233160973 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:48.322480917 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:21:48.322598934 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:21:48.462568045 CET	48202	443	192.168.2.13	185.125.190.26
Mar 23, 2025 12:22:03.411593914 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:22:03.411689997 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:22:18.192704916 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:22:18.284075975 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:22:18.284359932 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:22:33.394083023 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:22:33.394306898 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:22:48.483764887 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:22:48.483850002 CET	38802	23451	192.168.2.13	198.98.51.68
Mar 23, 2025 12:23:03.573430061 CET	23451	38802	198.98.51.68	192.168.2.13
Mar 23, 2025 12:23:03.573735952 CET	38802	23451	192.168.2.13	198.98.51.68

System Behavior

Analysis Process: x86.elf PID: 5435, Parent PID: 5357

General

Start time (UTC):	11:21:06
Start date (UTC):	23/03/2025
Path:	/tmp/x86.elf
Arguments:	/tmp/x86.elf
File size:	26404 bytes
MD5 hash:	22834e5a7f735f91e6a4287270738076

File Activities

File Opened

File Deleted

Process Activities

Process Forked

Prctl Requested

Chronological Activities

Analysis Process: x86.elf PID: 5436, Parent PID: 5435

General

Start time (UTC):	11:21:06
Start date (UTC):	23/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	26404 bytes
MD5 hash:	22834e5a7f735f91e6a4287270738076

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 5437, Parent PID: 5436

General

Start time (UTC):	11:21:06
Start date (UTC):	23/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	26404 bytes
MD5 hash:	22834e5a7f735f91e6a4287270738076

File Activities

File Opened

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Thread Sleep

Chronological Activities

Analysis Process: x86.elf PID: 5438, Parent PID: 5437

General

Start time (UTC):	11:21:06
Start date (UTC):	23/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	26404 bytes
MD5 hash:	22834e5a7f735f91e6a4287270738076

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 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 a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
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

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

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Linux Analysis Report x86.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

Networking

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: x86.elf PID: 5435, Parent PID: 5357

General

File Activities

File Opened

File Deleted

Process Activities

Process Forked

Prctl Requested

Chronological Activities

Analysis Process: x86.elf PID: 5436, Parent PID: 5435

General

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 5437, Parent PID: 5436

General

File Activities

File Opened

Directory Enumerated

Process Activities

Process Forked

Prctl Requested

Thread Sleep

Linux Analysis Report
x86.elf