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Linux Analysis Report
na.elf

Overview

General Information

Sample name:	na.elf
Analysis ID:	1532103
MD5:	d062a77a1be285a30ebf7e4efc908ff4
SHA1:	53da932743d4fa7e9430903c5fe4ba640e3a62a0
SHA256:	8f594e066e46872c10e71f57826dd61904ff84aac75256b479176281455de520
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

ELF contains segments with high entropy indicating compressed/encrypted content

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

Sample contains only a LOAD segment without any section mappings

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

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1532103
Start date and time:	2024-10-12 11:14:05 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 33s
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:	mal56.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/na.elf
PID:	6213
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:	qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Process Tree

system is lnxubuntu20

na.elf (PID: 6213, Parent: 6129, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/na.elf

dash New Fork (PID: 6265, Parent: 4331)

rm (PID: 6265, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.PFXmteLXOf /tmp/tmp.aEFs07lvwW /tmp/tmp.N9haWn11fV

dash New Fork (PID: 6266, Parent: 4331)

cat (PID: 6266, Parent: 4331, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.PFXmteLXOf

dash New Fork (PID: 6267, Parent: 4331)

head (PID: 6267, Parent: 4331, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6268, Parent: 4331)

tr (PID: 6268, Parent: 4331, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6269, Parent: 4331)

cut (PID: 6269, Parent: 4331, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6270, Parent: 4331)

cat (PID: 6270, Parent: 4331, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.PFXmteLXOf

dash New Fork (PID: 6271, Parent: 4331)

head (PID: 6271, Parent: 4331, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 6272, Parent: 4331)

tr (PID: 6272, Parent: 4331, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 6273, Parent: 4331)

cut (PID: 6273, Parent: 4331, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 6274, Parent: 4331)

rm (PID: 6274, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.PFXmteLXOf /tmp/tmp.aEFs07lvwW /tmp/tmp.N9haWn11fV

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

Multi AV Scanner detection for submitted file

Source: na.elf	ReversingLabs: Detection: 43%
Source: na.elf	Virustotal: Detection: 45%			Perma Link

Source: unknown

HTTPS traffic detected: 54.171.230.55:443 -> 192.168.2.23:33606 version: TLS 1.2

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: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown	TCP traffic detected without corresponding DNS query: 54.171.230.55
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	Network traffic detected: HTTP traffic on port 443 -> 33606
Source: unknown	Network traffic detected: HTTP traffic on port 33606 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: unknown

HTTPS traffic detected: 54.171.230.55:443 -> 192.168.2.23:33606 version: TLS 1.2

Source: LOAD without section mappings

Program segment: 0x100000

Source: classification engine

Classification label: mal56.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6265)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.PFXmteLXOf /tmp/tmp.aEFs07lvwW /tmp/tmp.N9haWn11fV			Jump to behavior
Source: /usr/bin/dash (PID: 6274)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.PFXmteLXOf /tmp/tmp.aEFs07lvwW /tmp/tmp.N9haWn11fV			Jump to behavior

Source: na.elf

Submission file: segment LOAD with 7.9961 entropy (max. 8.0)

Source: /tmp/na.elf (PID: 6213)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 6213.1.00007ffc54330000.00007ffc54351000.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, 6213.1.00005634df32c000.00005634df3b3000.rw-.sdmp	Binary or memory string: 4V!/etc/qemu-binfmt/mips
Source: na.elf, 6213.1.00005634df32c000.00005634df3b3000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 6213.1.00007ffc54330000.00007ffc54351000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-mips
Source: na.elf, 6213.1.00007ffc54330000.00007ffc54351000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

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	1 Obfuscated Files or Information	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 File Deletion	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
na.elf	44%	ReversingLabs	Linux.Trojan.Berbew
na.elf	46%	Virustotal		Browse
na.elf	100%	Avira	LINUX/Siggen.yhtwj

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

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
54.171.230.55	unknown	United States	16509	AMAZON-02US	false
109.202.202.202	unknown	Switzerland	13030	INIT7CH	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
54.171.230.55	apache2.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Mirai	Browse
	n7Nzys6TF5.elf	Get hash	malicious	Mirai	Browse
	6e1rv1WaB3.elf	Get hash	malicious	Mirai	Browse
	R3AhFxlB5h.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Unknown	Browse
	IwoeBDAv8n.elf	Get hash	malicious	Gafgyt	Browse
	na.elf	Get hash	malicious	Mirai, Gafgyt, Okiru	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	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
	SecuriteInfo.com.Linux.Siggen.7706.4895.27444.elf	Get hash	malicious	Unknown	Browse
	kcJoyylDVl.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	ntpd.elf	Get hash	malicious	Gafgyt, Mirai	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
	SecuriteInfo.com.Linux.Siggen.7706.4895.27444.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	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	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
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
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	185.125.190.26
	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
	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
AMAZON-02US	na.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Unknown	Browse	34.254.182.186
	z198902873827.exe	Get hash	malicious	DBatLoader, FormBook	Browse	185.166.143.49
	http://myweatherradar.org./	Get hash	malicious	Unknown	Browse	34.249.211.147
	http://link.adultspace.com/link/67097a59d79290df75176b77/aHR0cHM6Ly93d3cuZnVja2Jvb2tkYXRpbmcubmV0L2VuL2F1dGg_dXNlcj00MzMwMDA4NzEmY29kZT0xZDE3OTYyMTE3YWUwMzNjN2QyOWFlOTdkZWFhZjY1MyZyZWRpcmVjdFBhZ2U9JTJGYWNjb3VudCZyZWRpcmVjdFBhZ2VQYXJhbXMlNUJ1c2VyJTVEPTQzMzAwMDg3MQ==?linkId=link_9	Get hash	malicious	Unknown	Browse	3.128.228.77
	http://link.adultspace.com/link/67097a59d79290df75176b77/aHR0cHM6Ly93d3cuZnVja2Jvb2tkYXRpbmcubmV0L2VuL2F1dGg_dXNlcj00MzMwMDA4NzEmY29kZT0xZDE3OTYyMTE3YWUwMzNjN2QyOWFlOTdkZWFhZjY1MyZyZWRpcmVjdFBhZ2U9JTJGYWNjb3VudCZyZWRpcmVjdFBhZ2VQYXJhbXMlNUJ1c2VyJTVEPTQzMzAwMDg3MQ==	Get hash	malicious	Unknown	Browse	3.128.228.77
	https://confortdelaine.net/_t/c/A1020005-17FCC5B24D42434C-5CDEDE8F?l=AAAcWO23QzNrEQxSjr27S8EFVt7VLHdC62ZtcWocfX6Lqz5uexYrDxi+sVUvGeb6WoWr+1u86px6CeqKmXIOCUTvPxf5y1m+92lyrmRbK8koT6wtQAJk1YWaWBUMFIJ/3vsc2WvdtIwJaTxabsh+W+vUf4LC8SjYhEVylj55bIMdwbSSJa1w8dgA8TTZ2SM/gwTpERjPPbRkx4FbDzbbPD8sQxddZKtVA6IgU04s1TstolsJV14JD6qq3dThT2tvGDRLjfGCvSgCPZd7w/EyFIFEQHwfUU/HI6XrI0rF1TH49jLYmBCt6aM1i5EKOLkc84HNzk++/61mojPuIRtNzEb6nCJSn0uIrINbxC3a/h+jwOv+etRKwfazaX36q5rqMUkg7+72brLc0F+ETwf/n2D9sm5B&c=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	Get hash	malicious	Unknown	Browse	3.66.243.164
	https://11100100000101837399030030030371.weebly.com/	Get hash	malicious	HTMLPhisher	Browse	54.148.51.226
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

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, no section header
Entropy (8bit):	7.996080027576224
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	na.elf
File size:	59'368 bytes
MD5:	d062a77a1be285a30ebf7e4efc908ff4
SHA1:	53da932743d4fa7e9430903c5fe4ba640e3a62a0
SHA256:	8f594e066e46872c10e71f57826dd61904ff84aac75256b479176281455de520
SHA512:	a881f339b7faa67c769aee53a5003eec2c2e2628d478ea5e47ae4af1458e8e76c3212218d22443650918fd1e5d379c5c24e37c1ac35127f04fa947e1df985a38
SSDEEP:	1536:yYI0ARqw1qAEW67UIWi7M8gmfmJo0WgswnD6EfyqC:yYI0ARqw1qAEv7UIFM8oJorFquyjC
TLSH:	D4430206236A2AB2857549F4E7FCBF8DE6463E688FF55C197C107928B97136D2CC881C
File Content Preview:	.ELF....................../....4.........4. ...(......................Bd..Bd.................G...G.................................................^.......?.E.h4...@b..) ..]..0...a.t<..mc.zy/..>..!c...gM\<j..W`xD'..}...\..].j.L.u...S..i...../..F...@`..'k.

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:	0x112fe8
Flags:	0x1007
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	2
Section Header Offset:	0
Section Header Size:	40
Number of Section Headers:	0
Header String Table Index:	0

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Prog Interpreter	Section Mappings
LOAD	0x0	0x100000	0x100000	0x14264	0x14264	7.9961	0x5	R E	0x10000
LOAD	0xa6c0	0x47a6c0	0x47a6c0	0x0	0x0	0.0000	0x6	RW	0x10000

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 12, 2024 11:14:52.780632019 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 12, 2024 11:14:53.548510075 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 12, 2024 11:15:08.276432037 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.276546955 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.276587009 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.276628017 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.277137041 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.277137041 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.277137041 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.277137041 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.279622078 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.284998894 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.458132982 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.458782911 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.459140062 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.464299917 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.635762930 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.636183977 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.639215946 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:08.644970894 CEST	443	33606	54.171.230.55	192.168.2.23
Oct 12, 2024 11:15:08.645225048 CEST	33606	443	192.168.2.23	54.171.230.55
Oct 12, 2024 11:15:09.162750959 CEST	43928	443	192.168.2.23	91.189.91.42
Oct 12, 2024 11:15:19.401278973 CEST	42836	443	192.168.2.23	91.189.91.43
Oct 12, 2024 11:15:23.496681929 CEST	42516	80	192.168.2.23	109.202.202.202
Oct 12, 2024 11:15:50.117117882 CEST	43928	443	192.168.2.23	91.189.91.42

HTTPS Connections

Timestamp	Source IP	Source Port	Dest IP	Dest Port	Subject	Issuer	Not Before	Not After	JA3 SSL Client Fingerprint	JA3 SSL Client Digest
Oct 12, 2024 11:15:08.276587009 CEST	54.171.230.55	443	192.168.2.23	33606	CN=motd.ubuntu.com CN=R10, O=Let's Encrypt, C=US	CN=R10, O=Let's Encrypt, C=US CN=ISRG Root X1, O=Internet Security Research Group, C=US	Tue Aug 06 10:27:48 CEST 2024 Wed Mar 13 01:00:00 CET 2024	Mon Nov 04 09:27:47 CET 2024 Sat Mar 13 00:59:59 CET 2027
Oct 12, 2024 11:15:08.276587009 CEST	54.171.230.55	443	192.168.2.23	33606	CN=R10, O=Let's Encrypt, C=US	CN=ISRG Root X1, O=Internet Security Research Group, C=US	Wed Mar 13 01:00:00 CET 2024	Sat Mar 13 00:59:59 CET 2027

System Behavior

Analysis Process: na.elf PID: 6213, Parent PID: 6129

General

Start time (UTC):	09:14:50
Start date (UTC):	12/10/2024
Path:	/tmp/na.elf
Arguments:	/tmp/na.elf
File size:	5777432 bytes
MD5 hash:	0083f1f0e77be34ad27f849842bbb00c

Chronological Activities

Analysis Process: dash PID: 6265, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6265, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.PFXmteLXOf /tmp/tmp.aEFs07lvwW /tmp/tmp.N9haWn11fV
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6266, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cat PID: 6266, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.PFXmteLXOf
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Chronological Activities

Analysis Process: dash PID: 6267, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: head PID: 6267, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Chronological Activities

Analysis Process: dash PID: 6268, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: tr PID: 6268, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Chronological Activities

Analysis Process: dash PID: 6269, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cut PID: 6269, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Chronological Activities

Analysis Process: dash PID: 6270, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cat PID: 6270, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.PFXmteLXOf
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Chronological Activities

Analysis Process: dash PID: 6271, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: head PID: 6271, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Chronological Activities

Analysis Process: dash PID: 6272, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: tr PID: 6272, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Chronological Activities

Analysis Process: dash PID: 6273, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: cut PID: 6273, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Chronological Activities

Analysis Process: dash PID: 6274, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6274, Parent PID: 4331

General

Start time (UTC):	09:15:08
Start date (UTC):	12/10/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.PFXmteLXOf /tmp/tmp.aEFs07lvwW /tmp/tmp.N9haWn11fV
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

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 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

Compliance

Networking

System Summary

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

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

HTTPS Connections

System Behavior

Analysis Process: na.elf PID: 6213, Parent PID: 6129

General

Chronological Activities

Analysis Process: dash PID: 6265, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6265, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6266, Parent PID: 4331

General

Chronological Activities

Analysis Process: cat PID: 6266, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6267, Parent PID: 4331

General

Chronological Activities

Analysis Process: head PID: 6267, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6268, Parent PID: 4331

General

Chronological Activities

Analysis Process: tr PID: 6268, Parent PID: 4331

Linux Analysis Report
na.elf