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Linux Analysis Report
x86.elf

Overview

General Information

Sample name:	x86.elf
Analysis ID:	1594471
MD5:	d21f764b1f4c969d0dfd6870fcc5ffd8
SHA1:	dd0cd39d2e0888d0c8661f78c18e289a8ebccafa
SHA256:	8a89e230e9764be28afdd078a9345cb250eba74a29bd55745c911a80a2319f71
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Machine Learning detection for sample

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Yara signature match

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1594471
Start date and time:	2025-01-19 02:47:09 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 32s
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:	mal60.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/x86.elf
PID:	5518
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

x86.elf (PID: 5518, Parent: 5438, MD5: d21f764b1f4c969d0dfd6870fcc5ffd8) Arguments: /tmp/x86.elf

x86.elf New Fork (PID: 5519, Parent: 5518)

x86.elf New Fork (PID: 5520, Parent: 5519)

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
x86.elf	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x493b:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
x86.elf	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x7d79:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
x86.elf	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3be2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88

Memory Dumps

Source	Rule	Description	Author	Strings
5520.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x493b:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
5520.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x7d79:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
5520.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3be2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
5519.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x493b:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
5519.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x7d79:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
5519.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3be2:$a: 8B 4C 24 14 8B 74 24 0C 8B 5C 24 10 85 C9 74 0D 31 D2 8A 04 1A 88
5518.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0x493b:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
5518.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_fa48b592	unknown	unknown	0x7d79:$a: 31 C0 BA 01 00 00 00 B9 01 00 00 00 03 04 24 89 D7 31 D2 F7 F7 0F
5518.1.0000000008048000.0000000008051000.r-x.sdmp	Linux_Trojan_Mirai_8aa7b5d3	unknown	unknown	0x3be2:$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 4 entries

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: x86.elf

Virustotal: Detection: 9%

Perma Link

Machine Learning detection for sample

Source: x86.elf

Joe Sandbox ML: detected

Source: global traffic

TCP traffic: 192.168.2.14:45974 -> 85.239.34.134:5683

Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	TCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

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

System Summary

Malicious sample detected (through community Yara rule)

Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 5520.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 5520.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 5520.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 5519.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 5519.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 5519.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 5518.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 5518.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Source: 5518.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: x86.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: x86.elf, type: SAMPLE	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: 5520.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: 5520.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 5520.1.0000000008048000.0000000008051000.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: 5519.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: 5519.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 5519.1.0000000008048000.0000000008051000.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: 5518.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: 5518.1.0000000008048000.0000000008051000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: 5518.1.0000000008048000.0000000008051000.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: mal60.linELF@0/0@2/0

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	Direct Volume Access	OS Credential Dumping	System Service Discovery	Remote Services	Data from Local System	1 Non-Standard Port	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 Non-Application Layer Protocol	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

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Legend:

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

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
x86.elf	11%	ReversingLabs	Linux.Trojan.Mirai
x86.elf	9%	Virustotal		Browse
x86.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high

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
85.239.34.134	unknown	Russian Federation		134121	RAINBOW-HKRainbownetworklimitedHK	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
85.239.34.134	ppc.elf	Get hash	malicious	Unknown	Browse
	arm.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	ppc.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
	x86.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	Yboats.mpsl.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	Yboats.ppc.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	Yboats.arm7.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	Yboats.arc.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	Yboats.m68k.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.25
	Yboats.i686.elf	Get hash	malicious	Mirai, Okiru	Browse	162.213.35.24
	Yboats.arm.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	Yboats.mips.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	loki.arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	dbg.x86.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
RAINBOW-HKRainbownetworklimitedHK	ppc.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	mips.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm6.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	arm7.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	ppc.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	mips.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	m68k.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	sh4.elf	Get hash	malicious	Unknown	Browse	85.239.34.134
	x86.elf	Get hash	malicious	Unknown	Browse	85.239.34.134

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 (SYSV), statically linked, stripped
Entropy (8bit):	6.185820590637398
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:	39'492 bytes
MD5:	d21f764b1f4c969d0dfd6870fcc5ffd8
SHA1:	dd0cd39d2e0888d0c8661f78c18e289a8ebccafa
SHA256:	8a89e230e9764be28afdd078a9345cb250eba74a29bd55745c911a80a2319f71
SHA512:	56656caefe98af2f74e1234a778ab7250b883b7ad3b40bff58e69a5a2fb3417b708765bb19966dcce10ac432283816a923803c3d35e05e89dbc83781c55dd409
SSDEEP:	768:e1wOvypW8lQOzdgoWXxAILrCCP6V6Z4i1X38adqgAXYRfZ:e1TEhFmXrrCM6QZv1XMqmYRf
TLSH:	630329C1E6E3D7F9CC1A12F80063F37A6335E05F22F5CA8FE3E46596B842660184B246
File Content Preview:	.ELF........................4...........4. ...(.....................\|...\|................................6..............L...L...L...................Q.td............................U..S............h....#...[]...$.............U......=.....t..5..............

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 - System V
ABI Version:	0
Entry Point Address:	0x8048184
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	38932
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x80480b4	0xb4	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480d0	0xd0	0x8147	0x0	0x6	AX	16
.fini	PROGBITS	0x8050217	0x8217	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x8050230	0x8230	0x74c	0x0	0x2	A	4
.eh_frame	PROGBITS	0x8051000	0x9000	0x54c	0x0	0x3	WA	4
.tbss	NOBITS	0x805154c	0x954c	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x805154c	0x954c	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x8051554	0x9554	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x805155c	0x955c	0x4	0x0	0x3	WA	4
.got.plt	PROGBITS	0x8051560	0x9560	0xc	0x4	0x3	WA	4
.data	PROGBITS	0x8051580	0x9580	0x238	0x0	0x3	WA	32
.bss	NOBITS	0x80517c0	0x97b8	0x2ee8	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0x97b8	0x5c	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8048000	0x8048000	0x897c	0x897c	6.4009	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x9000	0x8051000	0x8051000	0x7b8	0x36a8	4.6643	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .got.plt .data .bss
TLS	0x954c	0x805154c	0x805154c	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 6
• 5683 undefined
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 19, 2025 02:48:02.830785036 CET	45974	5683	192.168.2.14	85.239.34.134
Jan 19, 2025 02:48:02.836180925 CET	5683	45974	85.239.34.134	192.168.2.14
Jan 19, 2025 02:48:02.836247921 CET	45974	5683	192.168.2.14	85.239.34.134
Jan 19, 2025 02:48:03.446397066 CET	5683	45974	85.239.34.134	192.168.2.14
Jan 19, 2025 02:48:03.446727991 CET	45974	5683	192.168.2.14	85.239.34.134
Jan 19, 2025 02:48:03.658085108 CET	45974	5683	192.168.2.14	85.239.34.134

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 19, 2025 02:48:04.225507975 CET	52196	53	192.168.2.14	1.1.1.1
Jan 19, 2025 02:48:04.225605011 CET	45151	53	192.168.2.14	1.1.1.1
Jan 19, 2025 02:48:04.233231068 CET	53	45151	1.1.1.1	192.168.2.14
Jan 19, 2025 02:48:04.233814955 CET	53	52196	1.1.1.1	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Jan 19, 2025 02:48:04.225507975 CET	192.168.2.14	1.1.1.1	0x9007	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Jan 19, 2025 02:48:04.225605011 CET	192.168.2.14	1.1.1.1	0x545d	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Jan 19, 2025 02:48:04.233814955 CET	1.1.1.1	192.168.2.14	0x9007	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Jan 19, 2025 02:48:04.233814955 CET	1.1.1.1	192.168.2.14	0x9007	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: x86.elf PID: 5518, Parent PID: 5438

General

Start time (UTC):	01:48:02
Start date (UTC):	19/01/2025
Path:	/tmp/x86.elf
Arguments:	/tmp/x86.elf
File size:	39492 bytes
MD5 hash:	d21f764b1f4c969d0dfd6870fcc5ffd8

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 5519, Parent PID: 5518

General

Start time (UTC):	01:48:02
Start date (UTC):	19/01/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	39492 bytes
MD5 hash:	d21f764b1f4c969d0dfd6870fcc5ffd8

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 5520, Parent PID: 5519

General

Start time (UTC):	01:48:02
Start date (UTC):	19/01/2025
Path:	/tmp/x86.elf
Arguments:	-
File size:	39492 bytes
MD5 hash:	d21f764b1f4c969d0dfd6870fcc5ffd8

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 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

Runtime Messages

Process Tree

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: x86.elf PID: 5518, Parent PID: 5438

General

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 5519, Parent PID: 5518

General

Process Activities

Process Forked

Chronological Activities

Analysis Process: x86.elf PID: 5520, Parent PID: 5519

General

Linux Analysis Report
x86.elf