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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1528909
MD5:	7f64d5cfe31c881cdfb8d769a0bc5486
SHA1:	3d3cf5fb24181255ecf26a8677b5c7a35a2a9769
SHA256:	647d662239d43d32b2d930036b95f45dfa7cda64e4237d184088548f78c2437c
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	52
Range:	0 - 100
Whitelisted:	false

Signatures

Opens /sys/class/net/* files useful for querying network interface information

Performs DNS TXT record lookups

Sample deletes itself

Detected TCP or UDP traffic on non-standard ports

Executes the "rm" command used to delete files or directories

Sample has stripped symbol table

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:	1528909
Start date and time:	2024-10-08 12:58:10 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 42s
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:	mal52.spyw.evad.linELF@0/0@1/0

Runtime Messages

Command:	/tmp/na.elf
PID:	6230
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	Firmware update in progress
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6217, Parent: 4333)

rm (PID: 6217, Parent: 4333, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.IemHT51aKE /tmp/tmp.ovgany5aq2 /tmp/tmp.NIDgLiYqT8

dash New Fork (PID: 6218, Parent: 4333)

rm (PID: 6218, Parent: 4333, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.IemHT51aKE /tmp/tmp.ovgany5aq2 /tmp/tmp.NIDgLiYqT8

na.elf (PID: 6230, Parent: 6152, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/na.elf

na.elf New Fork (PID: 6234, Parent: 6230)

na.elf New Fork (PID: 6237, Parent: 6234)

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

Networking

Opens /sys/class/net/* files useful for querying network interface information

Source: /tmp/na.elf (PID: 6234)	Opens: /sys/class/net/	Jump to behavior
Source: /tmp/na.elf (PID: 6234)	Opens: /sys/class/net/ens160/address	Jump to behavior
Source: /tmp/na.elf (PID: 6234)	Opens: /sys/class/net/ens160/flags	Jump to behavior
Source: /tmp/na.elf (PID: 6234)	Opens: /sys/class/net/ens160/carrier	Jump to behavior

Source: global traffic

TCP traffic: 192.168.2.23:60844 -> 5.230.122.82:3074

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.122.82
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.122.82
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.122.82
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.122.82
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.122.82
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.122.82
Source: unknown	UDP traffic detected without corresponding DNS query: 172.217.192.127
Source: unknown	UDP traffic detected without corresponding DNS query: 202.61.197.122

Source: global traffic

DNS traffic detected: DNS query: iranistrash.libre

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal52.spyw.evad.linELF@0/0@1/0

Source: /usr/bin/dash (PID: 6217)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.IemHT51aKE /tmp/tmp.ovgany5aq2 /tmp/tmp.NIDgLiYqT8			Jump to behavior
Source: /usr/bin/dash (PID: 6218)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.IemHT51aKE /tmp/tmp.ovgany5aq2 /tmp/tmp.NIDgLiYqT8			Jump to behavior

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/na.elf (PID: 6230)

File: /tmp/na.elf

Jump to behavior

Source: /tmp/na.elf (PID: 6230)	Queries kernel information via 'uname':			Jump to behavior
Source: /tmp/na.elf (PID: 6234)	Queries kernel information via 'uname':			Jump to behavior

Source: na.elf, 6230.1.00007fff858f4000.00007fff85915000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/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, 6230.1.000056344804c000.000056344819b000.rw-.sdmp	Binary or memory string: H4V!/etc/qemu-binfmt/arm
Source: na.elf, 6230.1.000056344804c000.000056344819b000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 6230.1.00007fff858f4000.00007fff85915000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm

HIPS / PFW / Operating System Protection Evasion

Performs DNS TXT record lookups

Source: Traffic

DNS traffic detected: queries for: iranistrash.libre

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	11 File Deletion	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	Rootkit	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

⊘No Antivirus matches

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
iranistrash.libre	unknown	unknown	true		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
5.230.122.82	unknown	Germany	12586	ASGHOSTNETDE	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
172.217.192.127	unknown	United States	15169	GOOGLEUS	false
91.189.91.43	unknown	United Kingdom	41231	CANONICAL-ASGB	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
5.230.122.82	SecuriteInfo.com.ELF.Mirai-CVD.30330.5069.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.31968.3467.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.11330.22523.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.17384.13664.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.12952.14309.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.ELF.Mirai-CVD.5487.13505.elf	Get hash	malicious	Unknown	Browse
109.202.202.202	kpLwzBouH4.elf	Get hash	malicious	Unknown	Browse	ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
91.189.91.43	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	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
91.189.91.42	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	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

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
ASGHOSTNETDE	SecuriteInfo.com.ELF.Mirai-CVD.30330.5069.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-CVD.31968.3467.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-CVD.11330.22523.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-CVD.17384.13664.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-CVD.12952.14309.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-CVD.5487.13505.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-COW.6055.9040.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-COW.15022.10577.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	SecuriteInfo.com.ELF.Mirai-CVD.15130.25224.elf	Get hash	malicious	Unknown	Browse	5.230.118.247
	dMCIAXJOD1.elf	Get hash	malicious	Unknown	Browse	5.230.228.46
CANONICAL-ASGB	na.elf	Get hash	malicious	Unknown	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	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	185.125.190.26
	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	185.125.190.26
CANONICAL-ASGB	na.elf	Get hash	malicious	Unknown	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	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	185.125.190.26
	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	185.125.190.26
INIT7CH	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

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, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	6.087797098177392
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	88'852 bytes
MD5:	7f64d5cfe31c881cdfb8d769a0bc5486
SHA1:	3d3cf5fb24181255ecf26a8677b5c7a35a2a9769
SHA256:	647d662239d43d32b2d930036b95f45dfa7cda64e4237d184088548f78c2437c
SHA512:	e4ae275553c3465924184cc48a4b47639798aea19fa9dc88c4ae58a2b7ce918ba297792861bae6edca1f1cca16567ef5a39b243311785b60fd19eba81431b760
SSDEEP:	1536:tdn0NRrd3fcSzsd9E6cX9OZC9PKt382U5FTPAIupR9lYCiBmudR:KtdkSI0hNyVs2U5FTPAIxNmu/
TLSH:	97933909BD819B11D8E432BAFA1E128933535BACE3EE7112CD215F2577CAD2B0E77542
File Content Preview:	.ELF..............(.........4....X......4. ...(........p.T...........................................U...U...............U...U...U..(...x4...............U...U...U..................Q.td..................................-...L..................@-.,@...0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8194
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	5
Section Header Offset:	88212
Section Header Size:	40
Number of Section Headers:	16
Header String Table Index:	15

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Link	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0	0
.init	PROGBITS	0x80d4	0xd4	0x10	0x0	0x6	AX	0	4
.text	PROGBITS	0x80f0	0xf0	0x14c10	0x0	0x6	AX	0	16
.fini	PROGBITS	0x1cd00	0x14d00	0x10	0x0	0x6	AX	0	4
.rodata	PROGBITS	0x1cd10	0x14d10	0x790	0x0	0x2	A	0	4
.ARM.extab	PROGBITS	0x1d4a0	0x154a0	0x18	0x0	0x2	A	0	4
.ARM.exidx	ARM_EXIDX	0x1d4b8	0x154b8	0x118	0x0	0x82	AL	2	4
.eh_frame	PROGBITS	0x255d0	0x155d0	0x4	0x0	0x3	WA	0	4
.tbss	NOBITS	0x255d4	0x155d4	0x8	0x0	0x403	WAT	0	4
.init_array	INIT_ARRAY	0x255d4	0x155d4	0x4	0x0	0x3	WA	0	4
.fini_array	FINI_ARRAY	0x255d8	0x155d8	0x4	0x0	0x3	WA	0	4
.got	PROGBITS	0x255e0	0x155e0	0xa8	0x4	0x3	WA	0	4
.data	PROGBITS	0x25688	0x15688	0x170	0x0	0x3	WA	0	4
.bss	NOBITS	0x257f8	0x157f8	0x3250	0x0	0x3	WA	0	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x157f8	0x16	0x0	0x0		0	1
.shstrtab	STRTAB	0x0	0x1580e	0x83	0x0	0x0		0	1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
EXIDX	0x154b8	0x1d4b8	0x1d4b8	0x118	0x118	4.4451	0x4	R	0x4	.ARM.exidx
LOAD	0x0	0x8000	0x8000	0x155d0	0x155d0	6.1067	0x5	R E	0x8000	.init .text .fini .rodata .ARM.extab .ARM.exidx
LOAD	0x155d0	0x255d0	0x255d0	0x228	0x3478	2.8632	0x6	RW	0x8000	.eh_frame .tbss .init_array .fini_array .got .data .bss
TLS	0x155d4	0x255d4	0x255d4	0x0	0x8	0.0000	0x4	R	0x4	.tbss
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 8, 2024 12:58:57.245553017 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 12:59:02.165106058 CEST	60844	3074	192.168.2.23	5.230.122.82
Oct 8, 2024 12:59:02.174228907 CEST	3074	60844	5.230.122.82	192.168.2.23
Oct 8, 2024 12:59:02.174302101 CEST	60844	3074	192.168.2.23	5.230.122.82
Oct 8, 2024 12:59:02.174616098 CEST	60844	3074	192.168.2.23	5.230.122.82
Oct 8, 2024 12:59:02.182892084 CEST	3074	60844	5.230.122.82	192.168.2.23
Oct 8, 2024 12:59:02.841353893 CEST	3074	60844	5.230.122.82	192.168.2.23
Oct 8, 2024 12:59:02.841605902 CEST	60844	3074	192.168.2.23	5.230.122.82
Oct 8, 2024 12:59:02.876600027 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 8, 2024 12:59:03.900621891 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 8, 2024 12:59:18.234797955 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 12:59:28.473479986 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 8, 2024 12:59:34.616535902 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 8, 2024 12:59:59.189069033 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 13:00:19.666121006 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 8, 2024 13:00:42.899523020 CEST	60844	3074	192.168.2.23	5.230.122.82
Oct 8, 2024 13:00:42.905308962 CEST	3074	60844	5.230.122.82	192.168.2.23
Oct 8, 2024 13:00:46.552568913 CEST	3074	60844	5.230.122.82	192.168.2.23
Oct 8, 2024 13:00:46.553049088 CEST	60844	3074	192.168.2.23	5.230.122.82

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 8, 2024 12:59:01.547554016 CEST	44559	3478	192.168.2.23	172.217.192.127
Oct 8, 2024 12:59:02.142972946 CEST	3478	44559	172.217.192.127	192.168.2.23
Oct 8, 2024 12:59:02.149230003 CEST	49228	53	192.168.2.23	202.61.197.122
Oct 8, 2024 12:59:02.164021015 CEST	53	49228	202.61.197.122	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 8, 2024 12:59:02.149230003 CEST	192.168.2.23	202.61.197.122	0x1388	Standard query (0)	iranistrash.libre	16	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Oct 8, 2024 12:59:02.164021015 CEST	202.61.197.122	192.168.2.23	0x1388	No error (0)	iranistrash.libre			TXT (Text strings)	IN (0x0001)	false

System Behavior

Analysis Process: dash PID: 6217, Parent PID: 4333

General

Start time (UTC):	10:58:47
Start date (UTC):	08/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6217, Parent PID: 4333

General

Start time (UTC):	10:58:47
Start date (UTC):	08/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.IemHT51aKE /tmp/tmp.ovgany5aq2 /tmp/tmp.NIDgLiYqT8
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6218, Parent PID: 4333

General

Start time (UTC):	10:58:47
Start date (UTC):	08/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6218, Parent PID: 4333

General

Start time (UTC):	10:58:47
Start date (UTC):	08/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.IemHT51aKE /tmp/tmp.ovgany5aq2 /tmp/tmp.NIDgLiYqT8
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: na.elf PID: 6230, Parent PID: 6152

General

Start time (UTC):	10:58:57
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: na.elf PID: 6234, Parent PID: 6230

General

Start time (UTC):	10:59:00
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: na.elf PID: 6237, Parent PID: 6234

General

Start time (UTC):	10:59:01
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, 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

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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

Networking

System Summary

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

HIPS / PFW / Operating System Protection 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: dash PID: 6217, Parent PID: 4333

General

Chronological Activities

Analysis Process: rm PID: 6217, Parent PID: 4333

General

Chronological Activities

Analysis Process: dash PID: 6218, Parent PID: 4333

General

Chronological Activities

Analysis Process: rm PID: 6218, Parent PID: 4333

General

Chronological Activities

Analysis Process: na.elf PID: 6230, Parent PID: 6152

General

Chronological Activities

Analysis Process: na.elf PID: 6234, Parent PID: 6230

General

Chronological Activities

Analysis Process: na.elf PID: 6237, Parent PID: 6234

General

Chronological Activities

Linux Analysis Report
na.elf