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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1528914
MD5:	1ddf8090d1ffff3dc5f3dcebb3916429
SHA1:	2842a9625617f02c494c944e30ed5edc3ba77867
SHA256:	563ecbe4128c754032d4e6914af6c40a1745dcdef8cd03a28cdec8a984bd40a4
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

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1528914
Start date and time:	2024-10-08 13:02:11 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 5s
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:	6275
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	Firmware update in progress
Standard Error:

Process Tree

system is lnxubuntu20

na.elf (PID: 6275, Parent: 6199, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/na.elf

na.elf New Fork (PID: 6277, Parent: 6275)

na.elf New Fork (PID: 6279, Parent: 6277)

dash New Fork (PID: 6291, Parent: 4331)

rm (PID: 6291, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.DGA79cPZXZ /tmp/tmp.ssuri6dQxf /tmp/tmp.nHD3hupuB3

dash New Fork (PID: 6292, Parent: 4331)

rm (PID: 6292, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.DGA79cPZXZ /tmp/tmp.ssuri6dQxf /tmp/tmp.nHD3hupuB3

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: 6277)	Opens: /sys/class/net/	Jump to behavior
Source: /tmp/na.elf (PID: 6277)	Opens: /sys/class/net/ens160/address	Jump to behavior
Source: /tmp/na.elf (PID: 6277)	Opens: /sys/class/net/ens160/flags	Jump to behavior
Source: /tmp/na.elf (PID: 6277)	Opens: /sys/class/net/ens160/carrier	Jump to behavior

Source: global traffic

TCP traffic: 192.168.2.23:41224 -> 5.230.229.84:3478

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.229.84
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.229.84
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.229.84
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.229.84
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
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: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 5.230.229.84
Source: unknown	UDP traffic detected without corresponding DNS query: 172.217.192.127
Source: unknown	UDP traffic detected without corresponding DNS query: 51.77.149.139

Source: global traffic

DNS traffic detected: DNS query: iranistrash.libre

Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39260
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 39260 -> 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: 6291)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.DGA79cPZXZ /tmp/tmp.ssuri6dQxf /tmp/tmp.nHD3hupuB3			Jump to behavior
Source: /usr/bin/dash (PID: 6292)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.DGA79cPZXZ /tmp/tmp.ssuri6dQxf /tmp/tmp.nHD3hupuB3			Jump to behavior

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/na.elf (PID: 6275)

File: /tmp/na.elf

Jump to behavior

Source: /tmp/na.elf (PID: 6275)	Queries kernel information via 'uname':			Jump to behavior
Source: /tmp/na.elf (PID: 6277)	Queries kernel information via 'uname':			Jump to behavior

Source: na.elf, 6275.1.00007ffd3f584000.00007ffd3f5a5000.rw-.sdmp	Binary or memory string: x86_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, 6275.1.00005599f5766000.00005599f57ed000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/mips
Source: na.elf, 6275.1.00005599f5766000.00005599f57ed000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 6275.1.00007ffd3f584000.00007ffd3f5a5000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips

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

Source	Detection	Scanner	Label	Link
na.elf	5%	ReversingLabs	Linux.Trojan.Mirai

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
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
5.230.229.84	unknown	Germany	12586	ASGHOSTNETDE	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	false
172.217.192.127	unknown	United States	15169	GOOGLEUS	false
91.189.91.42	unknown	United Kingdom	41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
34.249.145.219	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Gafgyt, Mirai, Okiru	Browse
	na.elf	Get hash	malicious	Mirai, Okiru	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	rebirth.spc.elf	Get hash	malicious	Gafgyt	Browse
	jsjapd.arm4.elf	Get hash	malicious	Gafgyt, Mirai	Browse
5.230.229.84	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-COW.6055.9040.elf	Get hash	malicious	Unknown	Browse
	dMCIAXJOD1.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
91.189.91.42	na.elf	Get hash	malicious	Unknown	Browse
	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

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	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	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
ASGHOSTNETDE	na.elf	Get hash	malicious	Unknown	Browse	5.230.171.8
	na.elf	Get hash	malicious	Unknown	Browse	5.230.122.82
	na.elf	Get hash	malicious	Unknown	Browse	5.230.122.80
	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
INIT7CH	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	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
AMAZON-02US	file.exe	Get hash	malicious	Credential Flusher	Browse	52.222.236.80
	http://nbxvavlbbnks0ockyfxgnbxva.feedbackfusion.site/4nbXVA123415bxwz821wfgqkoqbno9030GRUYZVSMVMDWDTG236348/3210Y21	Get hash	malicious	Unknown	Browse	3.161.82.28
	na.elf	Get hash	malicious	Unknown	Browse	3.149.248.32
	na.elf	Get hash	malicious	Unknown	Browse	54.250.236.56
	na.elf	Get hash	malicious	Unknown	Browse	108.133.132.197
	na.elf	Get hash	malicious	Unknown	Browse	130.177.239.174
	na.elf	Get hash	malicious	Unknown	Browse	18.241.200.20
	na.elf	Get hash	malicious	Unknown	Browse	35.76.198.184
	https://we.tl/t-BVtGtb0HLz	Get hash	malicious	Unknown	Browse	18.245.46.98
	na.elf	Get hash	malicious	Unknown	Browse	108.157.163.171

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):	5.426873785265998
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	na.elf
File size:	88'132 bytes
MD5:	1ddf8090d1ffff3dc5f3dcebb3916429
SHA1:	2842a9625617f02c494c944e30ed5edc3ba77867
SHA256:	563ecbe4128c754032d4e6914af6c40a1745dcdef8cd03a28cdec8a984bd40a4
SHA512:	b6b13fd0c07091661dd3cce98c334f10965de86dface3503f43f443fa952214a502a28c958d5bfb7c08cfbbb0935a1233ad066753f270762cfa98e13289499da
SSDEEP:	1536:3iYrHtFE3P0AoQbDivZF+VxIEclY/rkWbw5hl40Kuhqe:3LE3PrRDivZF+vI9lY/YWbwm0TMe
TLSH:	5183D74E7E158F7CFBAC863147B39E25974827D723D1C685D1ACEA001EA034E245FBA9
File Content Preview:	.ELF.....................@.`...4..Vd.....4. ...(.............@...@....J...J...............P..EP..EP.................dt.Q............................<...'..,...!'.......................<...'......!... ....'9... ......................<...'......!........'9B

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:	87652
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	0x400094	0x94	0x8c	0x0	0x6	AX	4
.text	PROGBITS	0x400120	0x120	0x141b0	0x0	0x6	AX	16
.fini	PROGBITS	0x4142d0	0x142d0	0x5c	0x0	0x6	AX	4
.rodata	PROGBITS	0x414330	0x14330	0x7a0	0x0	0x2	A	16
.ctors	PROGBITS	0x455000	0x15000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x455008	0x15008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x455020	0x15020	0x1a8	0x0	0x3	WA	16
.got	PROGBITS	0x4551d0	0x151d0	0x448	0x4	0x10000003	WAp	16
.sbss	NOBITS	0x455618	0x15618	0x8	0x0	0x10000003	WAp	4
.bss	NOBITS	0x455620	0x15618	0x4f8	0x0	0x3	WA	16
.shstrtab	STRTAB	0x0	0x15618	0x49	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	0x14ad0	0x14ad0	5.4999	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x15000	0x455000	0x455000	0x618	0xb18	3.6176	0x6	RW	0x10000	.ctors .dtors .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 8, 2024 13:03:23.928368092 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 13:03:25.425970078 CEST	41224	3478	192.168.2.23	5.230.229.84
Oct 8, 2024 13:03:25.430887938 CEST	3478	41224	5.230.229.84	192.168.2.23
Oct 8, 2024 13:03:25.431651115 CEST	41224	3478	192.168.2.23	5.230.229.84
Oct 8, 2024 13:03:25.431651115 CEST	41224	3478	192.168.2.23	5.230.229.84
Oct 8, 2024 13:03:25.437115908 CEST	3478	41224	5.230.229.84	192.168.2.23
Oct 8, 2024 13:03:26.103302002 CEST	3478	41224	5.230.229.84	192.168.2.23
Oct 8, 2024 13:03:26.103460073 CEST	41224	3478	192.168.2.23	5.230.229.84
Oct 8, 2024 13:03:42.351854086 CEST	443	39260	34.249.145.219	192.168.2.23
Oct 8, 2024 13:03:42.352242947 CEST	39260	443	192.168.2.23	34.249.145.219
Oct 8, 2024 13:03:42.357294083 CEST	443	39260	34.249.145.219	192.168.2.23
Oct 8, 2024 13:03:44.149759054 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 8, 2024 13:03:44.149759054 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 13:04:25.104011059 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 8, 2024 13:04:56.183093071 CEST	41224	3478	192.168.2.23	5.230.229.84
Oct 8, 2024 13:04:56.188730955 CEST	3478	41224	5.230.229.84	192.168.2.23

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 8, 2024 13:03:24.596640110 CEST	56648	3478	192.168.2.23	172.217.192.127
Oct 8, 2024 13:03:25.410211086 CEST	3478	56648	172.217.192.127	192.168.2.23
Oct 8, 2024 13:03:25.415498972 CEST	55583	53	192.168.2.23	51.77.149.139
Oct 8, 2024 13:03:25.424465895 CEST	53	55583	51.77.149.139	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Oct 8, 2024 13:03:25.415498972 CEST	192.168.2.23	51.77.149.139	0xb509	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 13:03:25.424465895 CEST	51.77.149.139	192.168.2.23	0xb509	No error (0)	iranistrash.libre			TXT (Text strings)	IN (0x0001)	false

System Behavior

Analysis Process: na.elf PID: 6275, Parent PID: 6199

General

Start time (UTC):	11:03:22
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: na.elf PID: 6277, Parent PID: 6275

General

Start time (UTC):	11:03:23
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: na.elf PID: 6279, Parent PID: 6277

General

Start time (UTC):	11:03:24
Start date (UTC):	08/10/2024
Path:	/tmp/na.elf
Arguments:	-
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: dash PID: 6291, Parent PID: 4331

General

Start time (UTC):	11:03:41
Start date (UTC):	08/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6291, Parent PID: 4331

General

Start time (UTC):	11:03:41
Start date (UTC):	08/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.DGA79cPZXZ /tmp/tmp.ssuri6dQxf /tmp/tmp.nHD3hupuB3
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6292, Parent PID: 4331

General

Start time (UTC):	11:03:41
Start date (UTC):	08/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6292, Parent PID: 4331

General

Start time (UTC):	11:03:41
Start date (UTC):	08/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.DGA79cPZXZ /tmp/tmp.ssuri6dQxf /tmp/tmp.nHD3hupuB3
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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

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

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: na.elf PID: 6275, Parent PID: 6199

General

Chronological Activities

Analysis Process: na.elf PID: 6277, Parent PID: 6275

General

Chronological Activities

Analysis Process: na.elf PID: 6279, Parent PID: 6277

General

Chronological Activities

Analysis Process: dash PID: 6291, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6291, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6292, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6292, Parent PID: 4331

General

Chronological Activities

Linux Analysis Report
na.elf