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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1532520
MD5:	d633c03b2d4ba9af334aa99654ea273f
SHA1:	578afe2aaa0c7195f1f7fa698a5f989802293dac
SHA256:	ed053f7989c52ff8138a36ad959500bb01cd9dcadfdce5c5033a1d7698c06818
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

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

Deletes system log files

Sample tries to access files in /etc/config/ (typical for OpenWRT routers)

Creates hidden files and/or directories

Detected TCP or UDP traffic on non-standard ports

Found strings indicative of a multi-platform dropper

Sample has stripped symbol table

Sample listens on a socket

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

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1532520
Start date and time:	2024-10-13 15:28:38 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 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:	na.elf
Detection:	MAL
Classification:	mal60.troj.evad.linELF@0/0@3/0

Runtime Messages

Command:	/tmp/na.elf
PID:	5453
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	thIs wEek on xLaB lEarNs nOthinG xd
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 5453, Parent: 5377, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/na.elf

na.elf New Fork (PID: 5461, Parent: 5453)

na.elf New Fork (PID: 5463, Parent: 5453)

na.elf New Fork (PID: 5465, Parent: 5453)

cleanup

Yara Signatures

⊘No yara matches

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: na.elf

Avira: detected

Source: na.elf	String: ash\|login\|wget\|curl\|tftp\|ntpdate
Source: na.elf	String: /proc//exe\|ash\|login\|wget\|curl\|tftp\|ntpdate/fdsocket\|proc/usr/bin/usr/sbin/system/mnt/mtd/app/org/z/zbin/home/app/dvr/bin/duksan/userfs/mnt/app/usr/etc/dvr/main/usr/local/var/bin/tmp/sqfs/z/bin/dvr/mnt/mtd/zconf/gm/bin/home/process/var/challenge/usr/lib/lib/systemd//usr/lib/systemd/system/system/bin//mnt//home/helper/home/davinci/usr/libexec//sbin//bin/

Networking

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

Source: global traffic

TCP traffic: 38.60.249.66 ports 1,2,5,6,7,27651

Source: global traffic

TCP traffic: 192.168.2.13:59010 -> 38.60.249.66:27651

Source: /tmp/na.elf (PID: 5453)

Socket: 127.0.0.1:1234

Jump to behavior

Source: global traffic

TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	TCP traffic detected without corresponding DNS query: 38.60.249.66
Source: unknown	UDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknown	UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown	UDP traffic detected without corresponding DNS query: 192.3.165.37
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: nineteen.libre
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com

Source: unknown

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal60.troj.evad.linELF@0/0@3/0

Data Obfuscation

Sample tries to access files in /etc/config/ (typical for OpenWRT routers)

Source: /tmp/na.elf (PID: 5463)

File: /etc/config

Jump to behavior

Source: /tmp/na.elf (PID: 5463)	Directory: /root/.cache	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /root/.ssh	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /root/.config	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /root/.local	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /tmp/.X11-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /tmp/.Test-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /tmp/.font-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /tmp/.ICE-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /tmp/.XIM-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5463)	Directory: /etc/.java	Jump to behavior

Hooking and other Techniques for Hiding and Protection

Deletes system log files

Source: /tmp/na.elf (PID: 5463)

Log files deleted: /var/log/kern.log

Jump to behavior

Source: /tmp/na.elf (PID: 5453)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 5453.1.00007ffdd591a000.00007ffdd593b000.rw-.sdmp	Binary or memory string: ,qx86_64/usr/bin/qemu-mips/tmp/na.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/na.elf
Source: na.elf, 5453.1.000055b989e7f000.000055b989f27000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/mips
Source: na.elf, 5453.1.000055b989e7f000.000055b989f27000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5453.1.00007ffdd591a000.00007ffdd593b000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips

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	1 Scripting	Valid Accounts	Windows Management Instrumentation	1 Scripting	Path Interception	1 Hidden Files and Directories	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	1 Indicator Removal	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 Non-Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	2 Application Layer Protocol	Traffic Duplication	Data Destruction

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
na.elf	100%	Avira	EXP/ELF.Agent.J.8

Dropped Files

⊘No Antivirus matches

Domains

Source	Detection	Scanner	Label	Link
daisy.ubuntu.com	0%	Virustotal		Browse

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	0%, Virustotal, Browse	unknown
nineteen.libre	unknown	unknown	false		unknown

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	ASN	ASN Name	Malicious
162.243.19.47	unknown	United States	14061	DIGITALOCEAN-ASNUS	false
185.125.190.26	unknown	United Kingdom	41231	CANONICAL-ASGB	false
192.3.165.37	unknown	United States	36352	AS-COLOCROSSINGUS	false
38.60.249.66	unknown	United States	174	COGENT-174US	true

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
162.243.19.47	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	ssk7Ah3h5D.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Mirai.5074.20408.25222.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Mirai.5074.27008.26400.elf	Get hash	malicious	Unknown	Browse
	10cF92lE99.elf	Get hash	malicious	Unknown	Browse
	O8s0ONHbkg.elf	Get hash	malicious	Unknown	Browse
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse
185.125.190.26	na.elf	Get hash	malicious	Unknown	Browse
	exCmhB0ruY.elf	Get hash	malicious	Unknown	Browse
	bot.arm.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse
	bot.x86.elf	Get hash	malicious	Mirai, Okiru	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	bash.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
192.3.165.37	na.elf	Get hash	malicious	Unknown	Browse
	NCVLNSfw1e.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Mirai.5075.8943.20322.elf	Get hash	malicious	Unknown	Browse
	AXaqAMVv30.elf	Get hash	malicious	Unknown	Browse
	O8s0ONHbkg.elf	Get hash	malicious	Unknown	Browse
38.60.249.66	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	GfPpov52Oc.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	arm5.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	arm6.elf	Get hash	malicious	Mirai, Moobot	Browse	162.213.35.24
	debug.dbg.elf	Get hash	malicious	Mirai, Moobot	Browse	162.213.35.25
	0h7AeM6QgB.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AS-COLOCROSSINGUS	WC5Gv13cOQ.rtf	Get hash	malicious	Remcos	Browse	107.173.4.16
	uSE8AyujGn.elf	Get hash	malicious	Mirai	Browse	104.170.120.236
	na.elf	Get hash	malicious	Mirai	Browse	198.12.122.175
	BeeaCHpaO4.exe	Get hash	malicious	Remcos	Browse	107.173.4.16
	na.rtf	Get hash	malicious	Remcos	Browse	107.173.4.16
	na.elf	Get hash	malicious	Mirai	Browse	23.94.151.92
	PO-00006799868.xls	Get hash	malicious	Remcos	Browse	107.173.4.16
	facturas vencidas, 650098, 0099, 00976, 009668, 009678, 0056598433.xlam.xlsx	Get hash	malicious	AgentTesla	Browse	198.46.178.134
	Orden de Compra 097890.xlam.xlsx	Get hash	malicious	AgentTesla	Browse	198.46.178.134
	172866025525495dd8e8afca3f3b56403378ef77acfe3af22ea24afc36e105013588df0d1b286.dat-decoded.exe	Get hash	malicious	Remcos	Browse	192.3.101.184
CANONICAL-ASGB	na.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	JUh7kxiILb.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.ELF.Mirai-ASX.1307.11743.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.ELF.Mirai-ASX.31818.3935.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
COGENT-174US	na.elf	Get hash	malicious	Unknown	Browse	38.60.249.66
	na.elf	Get hash	malicious	Unknown	Browse	38.60.249.66
	na.elf	Get hash	malicious	Unknown	Browse	38.60.249.66
	na.elf	Get hash	malicious	Unknown	Browse	38.60.249.66
	debug.dbg.elf	Get hash	malicious	Mirai, Moobot	Browse	204.243.128.148
	SecuriteInfo.com.Win32.TrojanX-gen.16449.26967.exe	Get hash	malicious	Unknown	Browse	149.104.74.87
	SecuriteInfo.com.Win32.TrojanX-gen.16449.26967.exe	Get hash	malicious	Unknown	Browse	38.54.26.75
	m0mg1WH7Su.elf	Get hash	malicious	Mirai	Browse	38.14.172.49
	PeleHfdpzX.elf	Get hash	malicious	Mirai	Browse	38.139.235.111
	ULRmk7oYR7.elf	Get hash	malicious	Mirai	Browse	149.110.96.196
DIGITALOCEAN-ASNUS	m68k.elf	Get hash	malicious	Mirai, Moobot	Browse	157.245.145.66
	mpsl.elf	Get hash	malicious	Mirai, Moobot	Browse	157.245.169.49
	sh4.elf	Get hash	malicious	Mirai, Moobot	Browse	157.245.169.57
	na.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	167.71.62.50
	na.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	167.71.62.50
	bot.arm.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	167.71.62.50
	bot.mips.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	167.71.62.50
	bot.mpsl.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	167.71.62.50
	bot.x86.elf	Get hash	malicious	Mirai, Okiru	Browse	167.71.62.50
	bot.arm5.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	Browse	167.71.62.50

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 MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.328209374787182
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	77'340 bytes
MD5:	d633c03b2d4ba9af334aa99654ea273f
SHA1:	578afe2aaa0c7195f1f7fa698a5f989802293dac
SHA256:	ed053f7989c52ff8138a36ad959500bb01cd9dcadfdce5c5033a1d7698c06818
SHA512:	900b2da50ddcbc4a059c53a3427a16af983a4c7f7f986fd2adc352640d05bcc330cfbfbe25dc24b0f2525d2ac907ad0fbc8369a59ed2b06794b6e60b3e01b19d
SSDEEP:	768:h4IG9ZPvS5uHSXirhev0vJxFcMfeeBsmDNWggyY0IiWzzp9nvRd0xlsFnsaqI:h4IG9U7irhepMmeimDjcVznncsFsrI
TLSH:	6773B54E2E618FBEF76DC73587B38E22975833D622E1D680E15CD9101E6434E641FBA8
File Content Preview:	.ELF.....................@.`...4..,......4. ...(.............@...@........................ ..E ..E .......N.........dt.Q............................<...'......!'.......................<...'......!... ....'9... ......................<...'......!........'9.

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	MIPS R3000
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x400260
Flags:	0x1007
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	76820
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x400094	0x94	0x8c	0x0	0x6	AX	4
.text	PROGBITS	0x400120	0x120	0x10d00	0x0	0x6	AX	16
.fini	PROGBITS	0x410e20	0x10e20	0x5c	0x0	0x6	AX	4
.rodata	PROGBITS	0x410e80	0x10e80	0xd50	0x0	0x2	A	16
.ctors	PROGBITS	0x452000	0x12000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x452008	0x12008	0x8	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x452014	0x12014	0x42c	0x0	0x3	WA	4
.data	PROGBITS	0x452440	0x12440	0x340	0x0	0x3	WA	16
.got	PROGBITS	0x452780	0x12780	0x43c	0x4	0x10000003	WAp	16
.sbss	NOBITS	0x452bbc	0x12bbc	0x20	0x0	0x10000003	WAp	4
.bss	NOBITS	0x452be0	0x12bbc	0x42d8	0x0	0x3	WA	16
.shstrtab	STRTAB	0x0	0x12bbc	0x56	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x11bd0	0x11bd0	5.3594	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x12000	0x452000	0x452000	0xbbc	0x4eb8	4.6377	0x6	RW	0x10000	.ctors .dtors .data.rel.ro .data .got .sbss .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 13, 2024 15:29:37.184357882 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:29:37.189333916 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:29:37.189419985 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:29:37.189826965 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:29:37.194647074 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:29:40.638664007 CEST	48202	443	192.168.2.13	185.125.190.26
Oct 13, 2024 15:29:52.204437017 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:29:52.209471941 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:30:12.898740053 CEST	48202	443	192.168.2.13	185.125.190.26
Oct 13, 2024 15:30:22.801839113 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:30:22.802237034 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:30:57.517227888 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:30:57.517724991 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:31:27.530951977 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:31:27.537719011 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:31:42.419086933 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:31:42.419425964 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:32:43.293672085 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:32:43.293998003 CEST	59010	27651	192.168.2.13	38.60.249.66
Oct 13, 2024 15:32:54.419931889 CEST	27651	59010	38.60.249.66	192.168.2.13
Oct 13, 2024 15:32:54.420013905 CEST	59010	27651	192.168.2.13	38.60.249.66

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 13, 2024 15:29:31.683008909 CEST	54865	53	192.168.2.13	54.36.111.116
Oct 13, 2024 15:29:31.693434954 CEST	54318	5353	192.168.2.13	162.243.19.47
Oct 13, 2024 15:29:36.699321032 CEST	46182	5353	192.168.2.13	192.3.165.37
Oct 13, 2024 15:29:37.181730032 CEST	5353	46182	192.3.165.37	192.168.2.13
Oct 13, 2024 15:32:16.235670090 CEST	51305	53	192.168.2.13	1.1.1.1
Oct 13, 2024 15:32:16.235670090 CEST	49227	53	192.168.2.13	1.1.1.1
Oct 13, 2024 15:32:16.243305922 CEST	53	49227	1.1.1.1	192.168.2.13
Oct 13, 2024 15:32:16.244046926 CEST	53	51305	1.1.1.1	192.168.2.13

ICMP Packets

Timestamp	Source IP	Dest IP	Checksum	Code	Type
Oct 13, 2024 15:29:31.688376904 CEST	54.36.111.116	192.168.2.13	6584	(Port unreachable)	Destination Unreachable

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 13, 2024 15:29:31.683008909 CEST	192.168.2.13	54.36.111.116	0x9bb5	Standard query (0)	nineteen.libre	A (IP address)	IN (0x0001)	false
Oct 13, 2024 15:32:16.235670090 CEST	192.168.2.13	1.1.1.1	0x90c0	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Oct 13, 2024 15:32:16.235670090 CEST	192.168.2.13	1.1.1.1	0xac5e	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
Oct 13, 2024 15:32:16.244046926 CEST	1.1.1.1	192.168.2.13	0x90c0	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Oct 13, 2024 15:32:16.244046926 CEST	1.1.1.1	192.168.2.13	0x90c0	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: na.elf PID: 5453, Parent PID: 5377

General

Start time (UTC):	13:29:29
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: na.elf PID: 5461, Parent PID: 5453

General

Start time (UTC):	13:29:30
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: na.elf PID: 5463, Parent PID: 5453

General

Start time (UTC):	13:29:30
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: na.elf PID: 5465, Parent PID: 5453

General

Start time (UTC):	13:29:30
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may set files and directories to be hidden to evade detection mechanisms. To prevent normal users from accidentally changing special files on a system, most operating systems have the concept of a ‘hidden’ file. These files don’t show up when a user browses the file system with a GUI or when using normal commands on the command line. Users must explicitly ask to show the hidden files either via a series of Graphical User Interface (GUI) prompts or with command line switches ( `dir /a` for Windows and `ls –a` for Linux and macOS).
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may delete or modify artifacts generated within systems to remove evidence of their presence or hinder defenses. Various artifacts may be created by an adversary or something that can be attributed to an adversary’s actions. Typically these artifacts are used as defensive indicators related to monitored events, such as strings from downloaded files, logs that are generated from user actions, and other data analyzed by defenders. Location, format, and type of artifact (such as command or login history) are often specific to each platform.
Tactics:	Defense Evasion
Data Sources:	Application Log: Application Log Content, Command: Command Execution, File: File Deletion, File: File Metadata, File: File Modification, Firewall: Firewall Rule Modification, Network Traffic: Network Traffic Content, Process: OS API Execution, Process: Process Creation, Scheduled Job: Scheduled Job Modification, User Account: User Account Authentication, User Account: User Account Deletion, Windows Registry: Windows Registry Key Deletion, Windows Registry: Windows Registry Key Modification
Platforms:	Containers, Google Workspace, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using 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 na.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Spreading

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

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

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

ICMP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: na.elf PID: 5453, Parent PID: 5377

General

Chronological Activities

Analysis Process: na.elf PID: 5461, Parent PID: 5453

General

Chronological Activities

Analysis Process: na.elf PID: 5463, Parent PID: 5453

General

Chronological Activities

Analysis Process: na.elf PID: 5465, Parent PID: 5453

General

Chronological Activities

Linux Analysis Report
na.elf