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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1532529
MD5:	23f684775cd0ec77dbac5d3b06eaa2a3
SHA1:	1c5dc968afd80b8641c7184a2ff5ab7072de33a7
SHA256:	bb7b5ef114c9ab567852caa806c03672cac7aa3ef1c855609cba74c1b5d77957
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	60
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

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

Executes the "systemctl" command used for controlling the systemd system and service manager

Found strings indicative of a multi-platform dropper

Reads system version information

Sample has stripped symbol table

Sample listens on a socket

Sample tries to kill a process (SIGKILL)

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1532529
Start date and time:	2024-10-13 15:37:52 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 55s
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@2/0

Runtime Messages

Command:	/tmp/na.elf
PID:	5721
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: 5721, Parent: 5526, MD5: ae65271c943d3451b7f026d1fadccea6) Arguments: /tmp/na.elf

na.elf New Fork (PID: 5723, Parent: 5721)

na.elf New Fork (PID: 5724, Parent: 5721)

na.elf New Fork (PID: 5727, Parent: 5721)

systemd New Fork (PID: 5732, Parent: 1)

snap-failure (PID: 5732, Parent: 1, MD5: 69136a7d575731ce62349f2e4d3e5c36) Arguments: /usr/lib/snapd/snap-failure snapd

snap-failure New Fork (PID: 5746, Parent: 5732)

systemctl (PID: 5746, Parent: 5732, MD5: 4deddfb6741481f68aeac522cc26ff4b) Arguments: systemctl stop snapd.socket

snap-failure New Fork (PID: 5747, Parent: 5732)

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

Multi AV Scanner detection for submitted file

Source: na.elf

ReversingLabs: Detection: 21%

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 3,4,6,7,9,49376

Source: global traffic

TCP traffic: 192.168.2.13:33626 -> 38.60.249.66:49376

Source: /tmp/na.elf (PID: 5721)

Socket: 127.0.0.1:1234

Jump to behavior

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	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: 116.203.104.203

Source: global traffic

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: /tmp/na.elf (PID: 5723)

SIGKILL sent: pid: 1692, result: successful

Jump to behavior

Source: classification engine

Classification label: mal60.troj.evad.linELF@0/0@2/0

Data Obfuscation

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

Source: /tmp/na.elf (PID: 5724)

File: /etc/config

Jump to behavior

Source: /tmp/na.elf (PID: 5724)	Directory: /root/.cache	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /root/.ssh	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /root/.config	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /root/.local	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /tmp/.X11-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /tmp/.Test-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /tmp/.font-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /tmp/.ICE-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /tmp/.XIM-unix	Jump to behavior
Source: /tmp/na.elf (PID: 5724)	Directory: /etc/.java	Jump to behavior

Source: /usr/lib/snapd/snap-failure (PID: 5746)

Systemctl executable: /usr/bin/systemctl -> systemctl stop snapd.socket

Jump to behavior

Source: /usr/lib/snapd/snap-failure (PID: 5732)

Reads version info: /proc/version

Jump to behavior

Hooking and other Techniques for Hiding and Protection

Deletes system log files

Source: /tmp/na.elf (PID: 5724)

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

Jump to behavior

Source: /tmp/na.elf (PID: 5721)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 5721.1.00005585d0fd9000.00005585d1089000.rw-.sdmp	Binary or memory string: !/etc/qemu-binfmt/ppc1
Source: na.elf, 5721.1.00007fffe29a8000.00007fffe29c9000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-ppc/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, 5721.1.00005585d0fd9000.00005585d1089000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/ppc
Source: na.elf, 5721.1.00007fffe29a8000.00007fffe29c9000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-ppc

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 Systemd Service	1 Systemd Service	1 Hidden Files and Directories	OS Credential Dumping	11 Security Software 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	1 Scripting	Boot or Logon Initialization Scripts	1 Indicator Removal	LSASS Memory	1 System Information 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

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	21%	ReversingLabs	Linux.Backdoor.Mirai

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

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
116.203.104.203	unknown	Germany		24940	HETZNER-ASDE	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
116.203.104.203	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
	ssk7Ah3h5D.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
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
	na.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	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	na.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	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

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
HETZNER-ASDE	na.elf	Get hash	malicious	Unknown	Browse	116.203.104.203
	na.elf	Get hash	malicious	Unknown	Browse	116.203.104.203
	debug.dbg.elf	Get hash	malicious	Mirai, Moobot	Browse	197.242.86.253
	C5u5BZq8gj.exe	Get hash	malicious	Vidar	Browse	116.203.12.50
	hD2EOjfpfW.exe	Get hash	malicious	Vidar	Browse	116.203.12.50
	AVSicb6epR.exe	Get hash	malicious	Stealc, Vidar	Browse	95.217.125.57
	yQMBCvJVWp.elf	Get hash	malicious	Mirai	Browse	176.9.143.6
	file.exe	Get hash	malicious	Unknown	Browse	95.216.2.172
	na.elf	Get hash	malicious	Unknown	Browse	78.47.94.101
	http://coin-have.c0m	Get hash	malicious	Unknown	Browse	88.198.27.52
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
	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

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, PowerPC or cisco 4500, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.970877153270427
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	54'548 bytes
MD5:	23f684775cd0ec77dbac5d3b06eaa2a3
SHA1:	1c5dc968afd80b8641c7184a2ff5ab7072de33a7
SHA256:	bb7b5ef114c9ab567852caa806c03672cac7aa3ef1c855609cba74c1b5d77957
SHA512:	928a31938ee855e30cf050c14f04a1542fe2d8f38bcc310525e941c3c3418170548f8c8d86662cf40b14d3eca5c25bd96d6a3140e30e204057a7e76213bd5afc
SSDEEP:	768:NralS0x47J3RDYHdtgqg/GjB+ur59bqH5N64ySY+Zozqothd2Qc4oSnYM:3BDqt3GG9Dr59bqfuIozqEv2luYM
TLSH:	8C330942B61C0847C1732EB0263B1BD0D3EBAAD222A4F288755FA75EC1B4E376585DDD
File Content Preview:	.ELF...........................4...4.....4. ...(.......................@...@..............................ET........dt.Q.............................!..\|......$H...H......$8!. \|...N.. .!..\|.......?..........x..../...@..\?........+../...A..$8...})......N..

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	PowerPC
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x100001f0
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	54068
Section Header Size:	40
Number of Section Headers:	12
Header String Table Index:	11

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x10000094	0x94	0x24	0x0	0x6	AX	4
.text	PROGBITS	0x100000b8	0xb8	0xb940	0x0	0x6	AX	4
.fini	PROGBITS	0x1000b9f8	0xb9f8	0x20	0x0	0x6	AX	4
.rodata	PROGBITS	0x1000ba18	0xba18	0x1128	0x0	0x2	A	4
.ctors	PROGBITS	0x1001d000	0xd000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x1001d008	0xd008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x1001d018	0xd018	0x2b4	0x0	0x3	WA	8
.sdata	PROGBITS	0x1001d2cc	0xd2cc	0x1c	0x0	0x3	WA	4
.sbss	NOBITS	0x1001d2e8	0xd2e8	0x90	0x0	0x3	WA	4
.bss	NOBITS	0x1001d378	0xd2e8	0x41dc	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0xd2e8	0x4b	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x10000000	0x10000000	0xcb40	0xcb40	6.0964	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0xd000	0x1001d000	0x1001d000	0x2e8	0x4554	3.8130	0x6	RW	0x10000	.ctors .dtors .data .sdata .sbss .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 13, 2024 15:39:32.556184053 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:39:32.561157942 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:39:32.561211109 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:39:32.571738958 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:39:32.576714993 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:39:47.586539984 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:39:47.592371941 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:39:49.493077993 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:39:49.493123055 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:39:49.493233919 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:39:49.493233919 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:40:24.809000015 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:40:24.809467077 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:41:01.749106884 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:41:01.749536991 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:41:31.777920961 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:41:31.783792019 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:42:13.831686020 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:42:13.831909895 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:42:15.331813097 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:15.526096106 CEST	53	34802	8.8.8.8	192.168.2.13
Oct 13, 2024 15:42:15.530283928 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:15.530283928 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:15.530283928 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:15.535530090 CEST	53	34802	8.8.8.8	192.168.2.13
Oct 13, 2024 15:42:15.535561085 CEST	53	34802	8.8.8.8	192.168.2.13
Oct 13, 2024 15:42:16.004868984 CEST	53	34802	8.8.8.8	192.168.2.13
Oct 13, 2024 15:42:16.005088091 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:16.139568090 CEST	53	34802	8.8.8.8	192.168.2.13
Oct 13, 2024 15:42:16.139661074 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:17.065774918 CEST	49376	33626	38.60.249.66	192.168.2.13
Oct 13, 2024 15:42:17.065942049 CEST	33626	49376	192.168.2.13	38.60.249.66
Oct 13, 2024 15:42:18.006133080 CEST	53	34802	8.8.8.8	192.168.2.13
Oct 13, 2024 15:42:18.006531954 CEST	34802	53	192.168.2.13	8.8.8.8
Oct 13, 2024 15:42:18.012227058 CEST	53	34802	8.8.8.8	192.168.2.13

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 13, 2024 15:39:31.983282089 CEST	44550	5353	192.168.2.13	116.203.104.203
Oct 13, 2024 15:39:32.545881033 CEST	5353	44550	116.203.104.203	192.168.2.13

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 13, 2024 15:42:15.530283928 CEST	192.168.2.13	8.8.8.8	0x269	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Oct 13, 2024 15:42:15.530283928 CEST	192.168.2.13	8.8.8.8	0x79fc	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 15:42:16.139568090 CEST	8.8.8.8	192.168.2.13	0x269	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Oct 13, 2024 15:42:16.139568090 CEST	8.8.8.8	192.168.2.13	0x269	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: na.elf PID: 5721, Parent PID: 5526

General

Start time (UTC):	13:39:29
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5723, Parent PID: 5721

General

Start time (UTC):	13:39:30
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5724, Parent PID: 5721

General

Start time (UTC):	13:39:30
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: na.elf PID: 5727, Parent PID: 5721

General

Start time (UTC):	13:39:30
Start date (UTC):	13/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5388968 bytes
MD5 hash:	ae65271c943d3451b7f026d1fadccea6

Chronological Activities

Analysis Process: systemd PID: 5732, Parent PID: 1

General

Start time (UTC):	13:39:31
Start date (UTC):	13/10/2024
Path:	/usr/lib/systemd/systemd
Arguments:	-
File size:	1620224 bytes
MD5 hash:	9b2bec7092a40488108543f9334aab75

Chronological Activities

Analysis Process: snap-failure PID: 5732, Parent PID: 1

General

Start time (UTC):	13:39:31
Start date (UTC):	13/10/2024
Path:	/usr/lib/snapd/snap-failure
Arguments:	/usr/lib/snapd/snap-failure snapd
File size:	4764904 bytes
MD5 hash:	69136a7d575731ce62349f2e4d3e5c36

Chronological Activities

Analysis Process: snap-failure PID: 5746, Parent PID: 5732

General

Start time (UTC):	13:39:31
Start date (UTC):	13/10/2024
Path:	/usr/lib/snapd/snap-failure
Arguments:	-
File size:	4764904 bytes
MD5 hash:	69136a7d575731ce62349f2e4d3e5c36

Chronological Activities

Analysis Process: systemctl PID: 5746, Parent PID: 5732

General

Start time (UTC):	13:39:31
Start date (UTC):	13/10/2024
Path:	/usr/bin/systemctl
Arguments:	systemctl stop snapd.socket
File size:	996584 bytes
MD5 hash:	4deddfb6741481f68aeac522cc26ff4b

Chronological Activities

Analysis Process: snap-failure PID: 5747, Parent PID: 5732

General

Start time (UTC):	13:39:32
Start date (UTC):	13/10/2024
Path:	/usr/lib/snapd/snap-failure
Arguments:	-
File size:	4764904 bytes
MD5 hash:	69136a7d575731ce62349f2e4d3e5c36

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 create or modify systemd services to repeatedly execute malicious payloads as part of persistence. Systemd is a system and service manager commonly used for managing background daemon processes (also known as services) and other system resources.Systemd is the default initialization (init) system on many Linux distributions replacing legacy init systems, including SysVinit and Upstart, while remaining backwards compatible.
Tactics:	Persistence, Privilege Escalation
Data Sources:	Command: Command Execution, File: File Creation, File: File Modification, Process: Process Creation, Service: Service Creation, Service: Service Modification
Platforms:	Linux
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:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information 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, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, 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 ...

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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

DNS Queries

DNS Answers

System Behavior

Analysis Process: na.elf PID: 5721, Parent PID: 5526

General

Chronological Activities

Analysis Process: na.elf PID: 5723, Parent PID: 5721

General

Chronological Activities

Analysis Process: na.elf PID: 5724, Parent PID: 5721

General

Chronological Activities

Analysis Process: na.elf PID: 5727, Parent PID: 5721

General

Chronological Activities

Analysis Process: systemd PID: 5732, Parent PID: 1

General

Chronological Activities

Analysis Process: snap-failure PID: 5732, Parent PID: 1

General

Chronological Activities

Analysis Process: snap-failure PID: 5746, Parent PID: 5732

General

Chronological Activities

Linux Analysis Report
na.elf