Edit tour

Linux Analysis Report
x86.elf

Overview

General Information

Sample name:	x86.elf
Analysis ID:	1648757
MD5:	49cf80e2a7a87ccc1eb3b6992a3e9c78
SHA1:	ae7f27a1636e7609817d40a3266ebe1ae1ceecab
SHA256:	6e695364595da2edaf8e941881a1954f964ed7fa38c1e117b573e3a65d00f5b5
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	56
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

Sample is packed with UPX

Sends malformed DNS queries

ELF contains segments with high entropy indicating compressed/encrypted content

Enumerates processes within the "proc" file system

Sample contains only a LOAD segment without any section mappings

Tries to resolve domain names, but no domain seems valid (expired dropper behavior)

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1648757
Start date and time:	2025-03-26 07:18:15 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 25s
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:	mal56.troj.evad.linELF@0/1@25/0

Warnings

VT rate limit hit for: solarwhale.dyn
VT rate limit hit for: solarwhale.dyn. [malformed]

Runtime Messages

Command:	/tmp/x86.elf
PID:	5436
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	skidmark botnet
Standard Error:

Process Tree

system is lnxubuntu20

x86.elf (PID: 5436, Parent: 5357, MD5: 49cf80e2a7a87ccc1eb3b6992a3e9c78) Arguments: /tmp/x86.elf

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

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

x86.elf New Fork (PID: 5439, Parent: 5437)

x86.elf New Fork (PID: 5440, Parent: 5437)

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Data Obfuscation
• Persistence and Installation Behavior
• Hooking and other Techniques for Hiding and Protection

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: x86.elf

ReversingLabs: Detection: 13%

Networking

Sends malformed DNS queries

Source: global traffic

DNS traffic detected: malformed DNS query: solarwhale.dyn. [malformed]

Source: unknown

DNS traffic detected: query: echohorizon.dyn replaycode: Name error (3)

Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	TCP traffic detected without corresponding DNS query: 175.30.53.20
Source: unknown	UDP traffic detected without corresponding DNS query: 94.16.114.254
Source: unknown	UDP traffic detected without corresponding DNS query: 94.16.114.254
Source: unknown	UDP traffic detected without corresponding DNS query: 94.16.114.254
Source: unknown	UDP traffic detected without corresponding DNS query: 94.16.114.254
Source: unknown	UDP traffic detected without corresponding DNS query: 94.16.114.254
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 194.36.144.87
Source: unknown	UDP traffic detected without corresponding DNS query: 51.254.162.59
Source: unknown	UDP traffic detected without corresponding DNS query: 51.254.162.59
Source: unknown	UDP traffic detected without corresponding DNS query: 51.254.162.59
Source: unknown	UDP traffic detected without corresponding DNS query: 51.254.162.59
Source: unknown	UDP traffic detected without corresponding DNS query: 51.254.162.59
Source: unknown	UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown	UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown	UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown	UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown	UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown	UDP traffic detected without corresponding DNS query: 178.254.22.166

Source: global traffic	DNS traffic detected: DNS query: solarwhale.dyn
Source: global traffic	DNS traffic detected: DNS query: echohorizon.dyn
Source: global traffic	DNS traffic detected: DNS query: solarwhale.dyn. [malformed]

Source: x86.elf

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

Source: LOAD without section mappings

Program segment: 0x8048000

Source: classification engine

Classification label: mal56.troj.evad.linELF@0/1@25/0

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 5.00 Copyright (C) 1996-2025 the UPX Team. All Rights Reserved. $

Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/230/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/5381/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/110/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/231/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/111/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/232/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/112/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/233/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/113/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/234/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/114/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/235/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/115/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/236/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/116/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/237/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/117/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/238/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/118/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/239/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/119/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/914/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/10/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/917/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/11/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/12/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/13/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/14/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/15/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/5276/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/16/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/17/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/18/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/19/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/240/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/3095/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/120/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/241/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/121/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/242/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/122/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/243/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/2/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/123/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/244/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/3/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/124/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/245/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1588/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/125/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/4/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/246/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/126/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/5/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/247/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/127/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/6/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/248/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/128/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/7/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/249/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/129/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/8/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/800/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/9/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1906/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/3642/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/802/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/803/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/20/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/21/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/22/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/23/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/24/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/25/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/26/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/27/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/28/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/29/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/3420/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1482/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/490/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1480/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/250/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/371/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/130/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/251/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/131/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/252/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/132/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/253/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/254/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1238/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/134/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/255/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/256/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/257/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/378/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/3413/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/258/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/259/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/1475/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/3776/cmdline	Jump to behavior
Source: /tmp/x86.elf (PID: 5439)	File opened: /proc/936/cmdline	Jump to behavior

Source: x86.elf	Submission file: segment LOAD with 7.8843 entropy (max. 8.0)
Source: x86.elf	Submission file: segment LOAD with 7.9764 entropy (max. 8.0)

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	1 OS Credential Dumping	System Service Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	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
x86.elf	14%	ReversingLabs	Linux.Packed.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Reputation
echohorizon.dyn	unknown	unknown	false	high
solarwhale.dyn	unknown	unknown	true	unknown
solarwhale.dyn. [malformed]	unknown	unknown	true	unknown

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
175.30.53.20	unknown	China		4134	CHINANET-BACKBONENo31Jin-rongStreetCN	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
175.30.53.20	x86.elf	Get hash	malicious	Unknown	Browse
	x86_64.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Unknown	Browse
	mpsl.elf	Get hash	malicious	Unknown	Browse
	gjsoX84ZOy.elf	Get hash	malicious	Mirai	Browse
	skwXrj6q72.elf	Get hash	malicious	Unknown	Browse
	VqY324s7TO.elf	Get hash	malicious	Unknown	Browse
	1v1A4KluJp.elf	Get hash	malicious	Unknown	Browse
	fI2JqkDmZj.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CHINANET-BACKBONENo31Jin-rongStreetCN	https://energy-innovation-4916.my.salesforce-sites.com/enr	Get hash	malicious	HTMLPhisher	Browse	63.140.39.248
	https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://tucansport.com/sample-page/&ved=2ahUKEwjQ8uXI8KWMAxXnRzABHZNPGggQFnoECBcQAQ&usg=AOvVaw0aeev5ilte-Y3jh1kJeCpR	Get hash	malicious	Unknown	Browse	63.140.38.112
	http://hak5.com	Get hash	malicious	Unknown	Browse	63.140.39.22
	arm.elf	Get hash	malicious	Gafgyt, Okiru	Browse	183.144.215.77
	ppc.elf	Get hash	malicious	Okiru	Browse	114.220.169.100
	mips.elf	Get hash	malicious	Gafgyt, Okiru	Browse	171.93.227.232
	m68k.elf	Get hash	malicious	Gafgyt, Okiru	Browse	222.209.183.103
	mpsl.elf	Get hash	malicious	Gafgyt, Okiru	Browse	110.180.33.75
	sh4.elf	Get hash	malicious	Gafgyt, Okiru	Browse	42.94.250.55
	arm7.elf	Get hash	malicious	Okiru	Browse	125.87.223.24

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

/memfd:upx (deleted)

Download File

Process:	/tmp/x86.elf
File Type:	data
Category:	dropped
Size (bytes):	6501
Entropy (8bit):	6.497544961336459
Encrypted:	false
SSDEEP:	96:HSNwtpYHpb5yQzlJqdAK0gJrwpm/Ko2BD4/U9VDX19B2dAtRy5Fag9RWssNJcyuC:yNwMHKclJq5Im/Ko2BaKFDMUoLag9ic+
MD5:	55F9FB7A5A632E6BD2C4CA5178795955
SHA1:	3B22C1708E5789ADE9B79516878BF8E00EF27C91
SHA-256:	6A7E9243A338B8188B1865B3668D43664092976FFA3DF32B9741E3BC16B86368
SHA-512:	2AA33D073132BA427D325E4BC2B10D3167C8955686BC12353875AAE158A6D65BDB14C77563C7F5DDE814AE4D045CE8EA4381ED57EEB70BC92CDD94F3BCD1749F
Malicious:	false
Reputation:	low
Preview:	....L...".......[S.%.....X............Y........t.............u.........j.Y.U....u.W...u......u.W.....u....t._Yj..D$.....@.........H..)}.WV...../proc/self/exe.[).j.X..D$(.......jUX...y........t...._O.... =......E..8...^..)..1....).Z.......I...O.1.).........X]X...^]......TWUVP.@.....Mh..f.}..u..-.z....[.s..........1...XY_[VQPRW[..x#S).j.^j.Z....1.).)...;...[...3..._).<..u.[YPPPPPPPP.[.'WVS..\|$....@.9...s.j.[j.X.....t.....F..B...C.....)..C...[^_.U..WV..S.....:.........}..:.E..E.P.C..v....P..........uy.U.;U.uq.E.)..C....V.)....tEj.....a....E.Y..t:.M..tB9.w>;.w:9.r......V.Q.8....U.X...V.)....u..e.[^_..}.UPX!u.....t.j.[j.X...U..WVS.t$.t<..u8............9.t....t(..t......9.u.C..p.u..u...t..U..u.[^_]......j.[j.X...U..WVS.............u..].VSW.....j.j.j2j..u.S.u.....$VWS.........e.[^_..U..WVS..x.E.U.}.]..E......E..U..M..E......U.M..E..............P4..E.+Z(f.x.........].J.....E.j[X..k....M..E.....f.Q,f..........E....E..... ;E...f....M....~.......

Static File Info

General

File type:	ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.973588605879543
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:	28'572 bytes
MD5:	49cf80e2a7a87ccc1eb3b6992a3e9c78
SHA1:	ae7f27a1636e7609817d40a3266ebe1ae1ceecab
SHA256:	6e695364595da2edaf8e941881a1954f964ed7fa38c1e117b573e3a65d00f5b5
SHA512:	a51b3bbc0f25fec04d2b271c78378fe002f2eb6e04f5ddc39d009ab2aeeb676724b4c9d8f3405ef6af69741dfe6e05638b8181e69f3acfc254bd4f9e3728ed10
SSDEEP:	384:MhUpKPw2EALHSI6J4TksMaW3Ua20ZwFsPjkpdlhbpl+hrXQ7DJ8NfjN2VAB5UeNR:UUpcZ68PAKf3lhb7+dcGN2VAHFyI9l
TLSH:	3ED2E07B73927706C0375DBDAC144F4DF4929B1A2916B3A0433B96B8F8A161E235ED22
File Content Preview:	.ELF....................X...4...........4. ..........................................................n...n..........Q.td................................UPX!\.......0...........V..........?..k.I/.j....\.d*nlz.e..A./:..5.KT7S..RmC...[X.t..l.bx.+......[B...:

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:	0x805db58
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:	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	0x8048000	0x8048000	0x1000	0xf980	7.8843	0x6	RW	0x1000
LOAD	0x0	0x8058000	0x8058000	0x6ea6	0x6ea6	7.9764	0x5	R E	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: 45
• 53 (DNS)
• 23 (Telnet)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 26, 2025 07:19:29.174534082 CET	44454	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:30.205390930 CET	44454	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:32.221389055 CET	44454	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:36.413379908 CET	44454	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:40.365415096 CET	44456	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:41.373394966 CET	44456	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:43.389385939 CET	44456	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:19:47.421480894 CET	44456	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:15.393448114 CET	44458	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:16.413425922 CET	44458	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:18.429405928 CET	44458	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:22.493428946 CET	44458	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:26.375827074 CET	44460	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:27.389436007 CET	44460	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:29.405416965 CET	44460	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:20:33.501441956 CET	44460	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:21:01.404448986 CET	44462	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:21:02.429508924 CET	44462	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:21:04.445528030 CET	44462	23	192.168.2.13	175.30.53.20
Mar 26, 2025 07:21:08.573621035 CET	44462	23	192.168.2.13	175.30.53.20

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 26, 2025 07:19:04.150537014 CET	51253	53	192.168.2.13	94.16.114.254
Mar 26, 2025 07:19:09.155622005 CET	43301	53	192.168.2.13	94.16.114.254
Mar 26, 2025 07:19:14.160690069 CET	46307	53	192.168.2.13	94.16.114.254
Mar 26, 2025 07:19:19.165411949 CET	52999	53	192.168.2.13	94.16.114.254
Mar 26, 2025 07:19:24.169399023 CET	48821	53	192.168.2.13	94.16.114.254
Mar 26, 2025 07:19:39.181619883 CET	58725	53	192.168.2.13	194.36.144.87
Mar 26, 2025 07:19:39.487231970 CET	53	58725	194.36.144.87	192.168.2.13
Mar 26, 2025 07:19:39.487354994 CET	49678	53	192.168.2.13	194.36.144.87
Mar 26, 2025 07:19:39.664499998 CET	53	49678	194.36.144.87	192.168.2.13
Mar 26, 2025 07:19:39.664673090 CET	51521	53	192.168.2.13	194.36.144.87
Mar 26, 2025 07:19:39.859381914 CET	53	51521	194.36.144.87	192.168.2.13
Mar 26, 2025 07:19:39.859503031 CET	56126	53	192.168.2.13	194.36.144.87
Mar 26, 2025 07:19:40.186502934 CET	53	56126	194.36.144.87	192.168.2.13
Mar 26, 2025 07:19:40.186650038 CET	37281	53	192.168.2.13	194.36.144.87
Mar 26, 2025 07:19:40.365309954 CET	53	37281	194.36.144.87	192.168.2.13
Mar 26, 2025 07:19:50.373802900 CET	47052	53	192.168.2.13	51.254.162.59
Mar 26, 2025 07:19:55.378884077 CET	46529	53	192.168.2.13	51.254.162.59
Mar 26, 2025 07:20:00.381429911 CET	51710	53	192.168.2.13	51.254.162.59
Mar 26, 2025 07:20:05.386502028 CET	59017	53	192.168.2.13	51.254.162.59
Mar 26, 2025 07:20:10.390877962 CET	59343	53	192.168.2.13	51.254.162.59
Mar 26, 2025 07:20:25.401607037 CET	55269	53	192.168.2.13	185.181.61.24
Mar 26, 2025 07:20:25.599513054 CET	53	55269	185.181.61.24	192.168.2.13
Mar 26, 2025 07:20:25.599725008 CET	33499	53	192.168.2.13	185.181.61.24
Mar 26, 2025 07:20:25.801337004 CET	53	33499	185.181.61.24	192.168.2.13
Mar 26, 2025 07:20:25.801503897 CET	47592	53	192.168.2.13	185.181.61.24
Mar 26, 2025 07:20:25.999366045 CET	53	47592	185.181.61.24	192.168.2.13
Mar 26, 2025 07:20:25.999574900 CET	35641	53	192.168.2.13	185.181.61.24
Mar 26, 2025 07:20:26.197168112 CET	53	35641	185.181.61.24	192.168.2.13
Mar 26, 2025 07:20:26.197303057 CET	39352	53	192.168.2.13	185.181.61.24
Mar 26, 2025 07:20:26.375672102 CET	53	39352	185.181.61.24	192.168.2.13
Mar 26, 2025 07:20:36.385691881 CET	35413	53	192.168.2.13	178.254.22.166
Mar 26, 2025 07:20:41.388880014 CET	46310	53	192.168.2.13	178.254.22.166
Mar 26, 2025 07:20:46.391176939 CET	42462	53	192.168.2.13	178.254.22.166
Mar 26, 2025 07:20:51.394314051 CET	37603	53	192.168.2.13	178.254.22.166
Mar 26, 2025 07:20:56.399198055 CET	36293	53	192.168.2.13	178.254.22.166

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 26, 2025 07:19:04.150537014 CET	192.168.2.13	94.16.114.254	0x1ca0	Standard query (0)	solarwhale.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:09.155622005 CET	192.168.2.13	94.16.114.254	0x1ca0	Standard query (0)	solarwhale.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:14.160690069 CET	192.168.2.13	94.16.114.254	0x1ca0	Standard query (0)	solarwhale.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:19.165411949 CET	192.168.2.13	94.16.114.254	0x1ca0	Standard query (0)	solarwhale.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:24.169399023 CET	192.168.2.13	94.16.114.254	0x1ca0	Standard query (0)	solarwhale.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:39.181619883 CET	192.168.2.13	194.36.144.87	0x701f	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:39.487354994 CET	192.168.2.13	194.36.144.87	0x701f	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:39.664673090 CET	192.168.2.13	194.36.144.87	0x701f	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:39.859503031 CET	192.168.2.13	194.36.144.87	0x701f	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:40.186650038 CET	192.168.2.13	194.36.144.87	0x701f	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:50.373802900 CET	192.168.2.13	51.254.162.59	0xc420	Standard query (0)	solarwhale.dyn. [malformed]	256	395	false
Mar 26, 2025 07:19:55.378884077 CET	192.168.2.13	51.254.162.59	0xc420	Standard query (0)	solarwhale.dyn. [malformed]	256	400	false
Mar 26, 2025 07:20:00.381429911 CET	192.168.2.13	51.254.162.59	0xc420	Standard query (0)	solarwhale.dyn. [malformed]	256	405	false
Mar 26, 2025 07:20:05.386502028 CET	192.168.2.13	51.254.162.59	0xc420	Standard query (0)	solarwhale.dyn. [malformed]	256	410	false
Mar 26, 2025 07:20:10.390877962 CET	192.168.2.13	51.254.162.59	0xc420	Standard query (0)	solarwhale.dyn. [malformed]	256	415	false
Mar 26, 2025 07:20:25.401607037 CET	192.168.2.13	185.181.61.24	0xf122	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:25.599725008 CET	192.168.2.13	185.181.61.24	0xf122	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:25.801503897 CET	192.168.2.13	185.181.61.24	0xf122	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:25.999574900 CET	192.168.2.13	185.181.61.24	0xf122	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:26.197303057 CET	192.168.2.13	185.181.61.24	0xf122	Standard query (0)	echohorizon.dyn	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:36.385691881 CET	192.168.2.13	178.254.22.166	0x200c	Standard query (0)	solarwhale.dyn. [malformed]	256	441	false
Mar 26, 2025 07:20:41.388880014 CET	192.168.2.13	178.254.22.166	0x200c	Standard query (0)	solarwhale.dyn. [malformed]	256	446	false
Mar 26, 2025 07:20:46.391176939 CET	192.168.2.13	178.254.22.166	0x200c	Standard query (0)	solarwhale.dyn. [malformed]	256	451	false
Mar 26, 2025 07:20:51.394314051 CET	192.168.2.13	178.254.22.166	0x200c	Standard query (0)	solarwhale.dyn. [malformed]	256	456	false
Mar 26, 2025 07:20:56.399198055 CET	192.168.2.13	178.254.22.166	0x200c	Standard query (0)	solarwhale.dyn. [malformed]	256	461	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Mar 26, 2025 07:19:39.487231970 CET	194.36.144.87	192.168.2.13	0x701f	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:39.664499998 CET	194.36.144.87	192.168.2.13	0x701f	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:39.859381914 CET	194.36.144.87	192.168.2.13	0x701f	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:40.186502934 CET	194.36.144.87	192.168.2.13	0x701f	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:19:40.365309954 CET	194.36.144.87	192.168.2.13	0x701f	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:25.599513054 CET	185.181.61.24	192.168.2.13	0xf122	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:25.801337004 CET	185.181.61.24	192.168.2.13	0xf122	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:25.999366045 CET	185.181.61.24	192.168.2.13	0xf122	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:26.197168112 CET	185.181.61.24	192.168.2.13	0xf122	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false
Mar 26, 2025 07:20:26.375672102 CET	185.181.61.24	192.168.2.13	0xf122	Name error (3)	echohorizon.dyn	none	none	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: x86.elf PID: 5436, Parent PID: 5357

General

Start time (UTC):	06:19:02
Start date (UTC):	26/03/2025
Path:	/tmp/x86.elf
Arguments:	/tmp/x86.elf
File size:	28572 bytes
MD5 hash:	49cf80e2a7a87ccc1eb3b6992a3e9c78

File Activities

File Opened

File Truncated

File Written

Process Activities

Process Forked

Prctl Requested

Chronological Activities

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

General

Start time (UTC):	06:19:03
Start date (UTC):	26/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	28572 bytes
MD5 hash:	49cf80e2a7a87ccc1eb3b6992a3e9c78

Process Activities

Process Forked

Chronological Activities

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

General

Start time (UTC):	06:19:03
Start date (UTC):	26/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	28572 bytes
MD5 hash:	49cf80e2a7a87ccc1eb3b6992a3e9c78

File Activities

File Opened

Directory Enumerated

Process Activities

Thread Sleep

Chronological Activities

Analysis Process: x86.elf PID: 5439, Parent PID: 5437

General

Start time (UTC):	06:19:03
Start date (UTC):	26/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	28572 bytes
MD5 hash:	49cf80e2a7a87ccc1eb3b6992a3e9c78

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Thread Sleep

Chronological Activities

Analysis Process: x86.elf PID: 5440, Parent PID: 5437

General

Start time (UTC):	06:19:03
Start date (UTC):	26/03/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	28572 bytes
MD5 hash:	49cf80e2a7a87ccc1eb3b6992a3e9c78

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 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 use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report x86.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

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

/memfd:upx (deleted)

Static File Info

General

Static ELF Info

ELF header

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: x86.elf PID: 5436, Parent PID: 5357

General

File Activities

File Opened

File Truncated

File Written

Process Activities

Process Forked

Prctl Requested

Chronological Activities

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

General

Process Activities

Process Forked

Chronological Activities

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

General

File Activities

File Opened

Directory Enumerated

Process Activities

Linux Analysis Report
x86.elf