Edit tour

Linux Analysis Report
Fantazy.i486.elf

Overview

General Information

Sample name:	Fantazy.i486.elf
Analysis ID:	1584482
MD5:	e9e942b2eeb0c8a12a5f521c047adb91
SHA1:	2042ce44a771c4a91f2dc9db17260b798422096f
SHA256:	ba22b2756c7924bcd0f917f9bbe10dab5e1c52fd0aa68e271de495c23ea4433d
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	68
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Machine Learning detection for sample

Sample has stripped symbol table

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1584482
Start date and time:	2025-01-05 16:47:06 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 13s
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:	Fantazy.i486.elf
Detection:	MAL
Classification:	mal68.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/Fantazy.i486.elf
PID:	5490
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

Fantazy.i486.elf (PID: 5490, Parent: 5412, MD5: e9e942b2eeb0c8a12a5f521c047adb91) Arguments: /tmp/Fantazy.i486.elf

cleanup

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
Fantazy.i486.elf	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0xd9ad:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
Fantazy.i486.elf	Linux_Trojan_Mirai_aa39fb02	unknown	unknown	0x8dc0:$a: 74 DE 8D 40 F1 3C 01 76 D7 80 FA 38 74 D2 80 FA 0A 74 CD 80
Fantazy.i486.elf	Linux_Trojan_Mirai_575f5bc8	unknown	unknown	0x10454:$a: 5A 56 5B 5B 55 42 44 5E 59 52 44 44 00 5E 73 5E 45 52 54 43 00
Fantazy.i486.elf	Linux_Trojan_Mirai_6e8e9257	unknown	unknown	0x2612:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54 0x2682:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54

Memory Dumps

Source	Rule	Description	Author	Strings
5490.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_122ff2e6	unknown	unknown	0xd9ad:$a: 24 EB 15 89 F0 83 C8 01 EB 03 8B 5B 08 3B 43 04 72 F8 8B 4B 0C 89
5490.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_aa39fb02	unknown	unknown	0x8dc0:$a: 74 DE 8D 40 F1 3C 01 76 D7 80 FA 38 74 D2 80 FA 0A 74 CD 80
5490.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_575f5bc8	unknown	unknown	0x10454:$a: 5A 56 5B 5B 55 42 44 5E 59 52 44 44 00 5E 73 5E 45 52 54 43 00
5490.1.0000000008048000.000000000805a000.r-x.sdmp	Linux_Trojan_Mirai_6e8e9257	unknown	unknown	0x2612:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54 0x2682:$a: 53 83 EC 04 8B 5C 24 18 8B 7C 24 20 8A 44 24 14 8A 54 24 1C 88 54

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: Fantazy.i486.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: Fantazy.i486.elf

ReversingLabs: Detection: 39%

Machine Learning detection for sample

Source: Fantazy.i486.elf

Joe Sandbox ML: detected

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: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_aa39fb02 Author: unknown
Source: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_575f5bc8 Author: unknown
Source: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_6e8e9257 Author: unknown
Source: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_aa39fb02 Author: unknown
Source: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_575f5bc8 Author: unknown
Source: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_6e8e9257 Author: unknown

Source: ELF static info symbol of initial sample

.symtab present: no

Source: Fantazy.i486.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: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_aa39fb02 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = b136ba6496816ba9737a3eb0e633c28a337511a97505f06e52f37b38599587cb, id = aa39fb02-ca7e-4809-ab5d-00e92763f7ec, last_modified = 2021-09-16
Source: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_575f5bc8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 58e22a2acd002b07e1b1c546e8dfe9885d5dfd2092d4044630064078038e314f, id = 575f5bc8-b848-4db4-a99c-132d4d2bc8a4, last_modified = 2021-09-16
Source: Fantazy.i486.elf, type: SAMPLE	Matched rule: Linux_Trojan_Mirai_6e8e9257 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4bad14aebb0b8c7aa414f38866baaf1f4b350b2026735de24bcf2014ff4b0a6a, id = 6e8e9257-a6d5-407a-a584-4656816a3ddc, last_modified = 2021-09-16
Source: 5490.1.0000000008048000.000000000805a000.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: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_aa39fb02 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = b136ba6496816ba9737a3eb0e633c28a337511a97505f06e52f37b38599587cb, id = aa39fb02-ca7e-4809-ab5d-00e92763f7ec, last_modified = 2021-09-16
Source: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_575f5bc8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 58e22a2acd002b07e1b1c546e8dfe9885d5dfd2092d4044630064078038e314f, id = 575f5bc8-b848-4db4-a99c-132d4d2bc8a4, last_modified = 2021-09-16
Source: 5490.1.0000000008048000.000000000805a000.r-x.sdmp, type: MEMORY	Matched rule: Linux_Trojan_Mirai_6e8e9257 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4bad14aebb0b8c7aa414f38866baaf1f4b350b2026735de24bcf2014ff4b0a6a, id = 6e8e9257-a6d5-407a-a584-4656816a3ddc, last_modified = 2021-09-16

Source: classification engine

Classification label: mal68.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-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
Fantazy.i486.elf	39%	ReversingLabs	Linux.Backdoor.Mirai
Fantazy.i486.elf	100%	Avira	EXP/ELF.Gafgyt.Z.A
Fantazy.i486.elf	100%	Joe Sandbox ML

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

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 contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	momo.arm5.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	momo.x86_64.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	unix.arm6.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	z0r0.arm.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	z0r0.ppc.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	z0r0.arm7.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	z0r0.arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	z0r0.mips.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	z0r0.arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

⊘No context

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):	6.40258709110983
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	Fantazy.i486.elf
File size:	74'816 bytes
MD5:	e9e942b2eeb0c8a12a5f521c047adb91
SHA1:	2042ce44a771c4a91f2dc9db17260b798422096f
SHA256:	ba22b2756c7924bcd0f917f9bbe10dab5e1c52fd0aa68e271de495c23ea4433d
SHA512:	a24c0a9f0d73f6d9241cb51aee2d2a0e958e25404aedd9c6906bf6a90a87eff0f14d3c897584ddbf55207249cbf288110c2a37ec39d1891639cb98df07aba7ed
SSDEEP:	1536:HRTbHToWhcBPWVcBayG5YmTx45mTThWvwXdxPUqg:HBTjhcBPWVxYElUvwXdBUqg
TLSH:	C7734BC6E98BF9F0CD41097824BBB735D933F4363325DB97E7B96613D98228264012AD
File Content Preview:	.ELF....................t...4...."......4. ...(.......................................... ..........l....*..........Q.td............................U..S.......{....x....S...[]...$.............U......=.....t..D...................(......(.......u........t..

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:	0x8048174
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	74416
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8048094	0x94	0x1c	0x0	0x6	AX	1
.text	PROGBITS	0x80480b0	0xb0	0x10184	0x0	0x6	AX	16
.fini	PROGBITS	0x8058234	0x10234	0x17	0x0	0x6	AX	1
.rodata	PROGBITS	0x805824c	0x1024c	0x15c4	0x0	0x2	A	4
.ctors	PROGBITS	0x805a004	0x12008	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x805a00c	0x12010	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x805a024	0x12028	0x248	0x0	0x3	WA	4
.bss	NOBITS	0x805a280	0x12270	0x2858	0x0	0x3	WA	32
.shstrtab	STRTAB	0x0	0x12270	0x3e	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8048000	0x8048000	0x11810	0x11810	6.5339	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x12004	0x805a004	0x805a000	0x26c	0x2ad4	3.5641	0x6	RW	0x1000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 5, 2025 16:47:51.663599014 CET	32902	53	192.168.2.14	1.1.1.1
Jan 5, 2025 16:47:51.663645983 CET	53361	53	192.168.2.14	1.1.1.1
Jan 5, 2025 16:47:51.670298100 CET	53	32902	1.1.1.1	192.168.2.14
Jan 5, 2025 16:47:51.670607090 CET	53	53361	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 5, 2025 16:47:51.663599014 CET	192.168.2.14	1.1.1.1	0x15d3	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Jan 5, 2025 16:47:51.663645983 CET	192.168.2.14	1.1.1.1	0x30e2	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 5, 2025 16:47:51.670298100 CET	1.1.1.1	192.168.2.14	0x15d3	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Jan 5, 2025 16:47:51.670298100 CET	1.1.1.1	192.168.2.14	0x15d3	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: Fantazy.i486.elf PID: 5490, Parent PID: 5412

General

Start time (UTC):	15:47:50
Start date (UTC):	05/01/2025
Path:	/tmp/Fantazy.i486.elf
Arguments:	/tmp/Fantazy.i486.elf
File size:	74816 bytes
MD5 hash:	e9e942b2eeb0c8a12a5f521c047adb91

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 Fantazy.i486.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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted 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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: Fantazy.i486.elf PID: 5490, Parent PID: 5412

General

Linux Analysis Report
Fantazy.i486.elf