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Linux Analysis Report
gwX4DFn6ue.elf

Overview

General Information

Sample name:	gwX4DFn6ue.elf renamed because original name is a hash value
Original sample name:	a07d402c16efd6e8b12ddd14441247d9.elf
Analysis ID:	1430211
MD5:	a07d402c16efd6e8b12ddd14441247d9
SHA1:	687f76253f5b0d4ab856f61e2a3fddf2d6121878
SHA256:	cf69f3c5682af506451e4f137d4e84daec473da18570e29fd170dc0ee2e33010
Tags:	32armelf
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

Analysis Advice

Static ELF header machine description suggests that the sample might not execute correctly on this machine.

Exit code information suggests that the sample terminated abnormally, try to lookup the sample's target architecture.

Non-zero exit code suggests an error during the execution. Lookup the error code for hints.

Static ELF header machine description suggests that the sample might only run correctly on MIPS or ARM architectures.

General Information

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1430211
Start date and time:	2024-04-23 10:24:13 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 41s
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:	gwX4DFn6ue.elf renamed because original name is a hash value
Original Sample Name:	a07d402c16efd6e8b12ddd14441247d9.elf
Detection:	MAL
Classification:	mal56.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/gwX4DFn6ue.elf
PID:	5480
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

gwX4DFn6ue.elf (PID: 5480, Parent: 5401, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/gwX4DFn6ue.elf

dash New Fork (PID: 5549, Parent: 3633)

rm (PID: 5549, Parent: 3633, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.fp4DJdWBoT /tmp/tmp.8HjWXLsyfB /tmp/tmp.nLnZo31oWc

dash New Fork (PID: 5550, Parent: 3633)

cat (PID: 5550, Parent: 3633, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.fp4DJdWBoT

dash New Fork (PID: 5551, Parent: 3633)

head (PID: 5551, Parent: 3633, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5552, Parent: 3633)

tr (PID: 5552, Parent: 3633, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5553, Parent: 3633)

cut (PID: 5553, Parent: 3633, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5554, Parent: 3633)

cat (PID: 5554, Parent: 3633, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.fp4DJdWBoT

dash New Fork (PID: 5555, Parent: 3633)

head (PID: 5555, Parent: 3633, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5556, Parent: 3633)

tr (PID: 5556, Parent: 3633, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5557, Parent: 3633)

cut (PID: 5557, Parent: 3633, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5558, Parent: 3633)

rm (PID: 5558, Parent: 3633, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.fp4DJdWBoT /tmp/tmp.8HjWXLsyfB /tmp/tmp.nLnZo31oWc

cleanup

HTTP traffic detected: GET / HTTP/1.1User-Agent: wget/1.20.3-1ubuntu1 Ubuntu/20.04.2/LTS GNU/Linux/5.4.0-72-generic/x86_64 Intel(R)/Xeon(R)/Silver/4210/CPU/@/2.20GHz cloud_id/noneAccept: */*Accept-Encoding: identityHost: motd.ubuntu.comConnection: Keep-Alive

Source: unknown

DNS traffic detected: queries for: daisy.ubuntu.com

Source: unknown	Network traffic detected: HTTP traffic on port 43384 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 37910
Source: unknown	Network traffic detected: HTTP traffic on port 37910 -> 443

Source: LOAD without section mappings

Program segment: 0x8000

Source: classification engine

Classification label: mal56.linELF@0/0@2/0

Source: /usr/bin/dash (PID: 5549)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.fp4DJdWBoT /tmp/tmp.8HjWXLsyfB /tmp/tmp.nLnZo31oWc			Jump to behavior
Source: /usr/bin/dash (PID: 5558)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.fp4DJdWBoT /tmp/tmp.8HjWXLsyfB /tmp/tmp.nLnZo31oWc			Jump to behavior

Source: gwX4DFn6ue.elf

Submission file: segment LOAD with 7.9851 entropy (max. 8.0)

Source: /tmp/gwX4DFn6ue.elf (PID: 5480)

Queries kernel information via 'uname':

Jump to behavior

Source: gwX4DFn6ue.elf, 5480.1.00007ffcdc11c000.00007ffcdc13d000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/gwX4DFn6ue.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/gwX4DFn6ue.elf
Source: gwX4DFn6ue.elf, 5480.1.0000560f91e14000.0000560f91f42000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: gwX4DFn6ue.elf, 5480.1.00007ffcdc11c000.00007ffcdc13d000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: gwX4DFn6ue.elf, 5480.1.0000560f91e14000.0000560f91f42000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/arm
Source: gwX4DFn6ue.elf, 5480.1.00007ffcdc11c000.00007ffcdc13d000.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	2 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	3 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	1 Ingress Tool Transfer	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
gwX4DFn6ue.elf	37%	ReversingLabs	Linux.Trojan.Svirtu
gwX4DFn6ue.elf	34%	Virustotal		Browse
gwX4DFn6ue.elf	100%	Avira	EXP/ELF.Agent.F.14

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high

Contacted URLs

Name	Malicious	Antivirus Detection	Reputation
https://motd.ubuntu.com/	false		high

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
54.171.230.55	unknown	United States		16509	AMAZON-02US	false
54.247.62.1	unknown	United States		16509	AMAZON-02US	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
54.171.230.55	SecuriteInfo.com.Linux.DownLoader.532.20148.6112.elf	Get hash	malicious	Unknown	Browse
	tB42BIvqlr.elf	Get hash	malicious	Unknown	Browse
	AfF3NP01xL.elf	Get hash	malicious	Unknown	Browse
	client1.elf	Get hash	malicious	Unknown	Browse
	1lkozpLZNX.elf	Get hash	malicious	Unknown	Browse
	igIKGnfg87.elf	Get hash	malicious	Mirai	Browse
	MR6rclGNGX.elf	Get hash	malicious	Gafgyt	Browse
	nsmcSHJVkI.elf	Get hash	malicious	Gafgyt	Browse
	vlxx.mips-20240418-1853.elf	Get hash	malicious	Mirai, Okiru	Browse
54.247.62.1	SecuriteInfo.com.Linux.Siggen.7228.11695.14684.elf	Get hash	malicious	Unknown	Browse
	tajma.x86_64-20240422-0536.elf	Get hash	malicious	Mirai, Okiru	Browse
	client1.elf	Get hash	malicious	Unknown	Browse
	NlF293hgXW.elf	Get hash	malicious	Mirai, Okiru	Browse
	PN9QHDmpS1.elf	Get hash	malicious	Mirai, Okiru	Browse
	s02RKS8Moh.elf	Get hash	malicious	Unknown	Browse
	7NoSwE5r4C.elf	Get hash	malicious	Chaos	Browse
	FMBz4fK3Fo.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	z3u7dnBStL.elf	Get hash	malicious	Mirai	Browse
	YE6HFLEfb4.elf	Get hash	malicious	Unknown	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	9ciLh6edh3.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	5mvyNjbs8N.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	SecuriteInfo.com.Linux.Siggen.9999.6529.26985.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	SecuriteInfo.com.Linux.DownLoader.523.19080.5007.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	SecuriteInfo.com.Linux.DownLoader.532.20148.6112.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	SecuriteInfo.com.Linux.Siggen.9999.10949.15787.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	SecuriteInfo.com.Linux.Siggen.9999.22447.5558.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	SecuriteInfo.com.Linux.Siggen.9999.29052.16568.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	SecuriteInfo.com.Linux.DownLoader.517.7938.4881.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	x86_64.crdownload.0.dr	Get hash	malicious	Unknown	Browse	162.213.35.24

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AMAZON-02US	SecuriteInfo.com.Linux.Siggen.7228.11695.14684.elf	Get hash	malicious	Unknown	Browse	54.247.62.1
	https://url.avanan.click/v2/___https:/novafr-my.sharepoint.com/:b:/g/personal/mfranco_nova-fr_org/EZPaIwPkDApNno6rWIAO20YB4ByiRCAe_VGScx-2iiONBw?e=magUuY/___.YXAzOmVuLW1kYTphOm86ZDA4MDI5MGVhZTA1MzJiMWZlYTg0YjE1OWE2NmVhNjc6NjplYTNkOjc2NzNkYWE0NTMzNWVhMjkxM2VjMGU1NGMyNDY3ZjVhNmJhNjU0MTk1ZmRjMzUzM2QxODAyNDVjY2E1Y2M1ODY6aDpU	Get hash	malicious	HTMLPhisher	Browse	108.156.172.86
	BitTorrent-7.6.exe	Get hash	malicious	Unknown	Browse	99.86.228.107
	BitTorrent-7.6.exe	Get hash	malicious	Unknown	Browse	99.86.228.107
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse	34.249.145.219
	SecuriteInfo.com.Linux.DownLoader.532.20148.6112.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	https://5gpzyf.cn/	Get hash	malicious	Unknown	Browse	52.85.151.86
	szamla_sorszam_8472.xlsm	Get hash	malicious	Unknown	Browse	34.243.110.181
AMAZON-02US	SecuriteInfo.com.Linux.Siggen.7228.11695.14684.elf	Get hash	malicious	Unknown	Browse	54.247.62.1
	https://url.avanan.click/v2/___https:/novafr-my.sharepoint.com/:b:/g/personal/mfranco_nova-fr_org/EZPaIwPkDApNno6rWIAO20YB4ByiRCAe_VGScx-2iiONBw?e=magUuY/___.YXAzOmVuLW1kYTphOm86ZDA4MDI5MGVhZTA1MzJiMWZlYTg0YjE1OWE2NmVhNjc6NjplYTNkOjc2NzNkYWE0NTMzNWVhMjkxM2VjMGU1NGMyNDY3ZjVhNmJhNjU0MTk1ZmRjMzUzM2QxODAyNDVjY2E1Y2M1ODY6aDpU	Get hash	malicious	HTMLPhisher	Browse	108.156.172.86
	BitTorrent-7.6.exe	Get hash	malicious	Unknown	Browse	99.86.228.107
	BitTorrent-7.6.exe	Get hash	malicious	Unknown	Browse	99.86.228.107
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse	34.249.145.219
	SecuriteInfo.com.Linux.DownLoader.532.20148.6112.elf	Get hash	malicious	Unknown	Browse	54.171.230.55
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	https://5gpzyf.cn/	Get hash	malicious	Unknown	Browse	52.85.151.86
	szamla_sorszam_8472.xlsm	Get hash	malicious	Unknown	Browse	34.243.110.181

File type:	ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, no section header
Entropy (8bit):	7.984154486158842
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	gwX4DFn6ue.elf
File size:	62'884 bytes
MD5:	a07d402c16efd6e8b12ddd14441247d9
SHA1:	687f76253f5b0d4ab856f61e2a3fddf2d6121878
SHA256:	cf69f3c5682af506451e4f137d4e84daec473da18570e29fd170dc0ee2e33010
SHA512:	972f452e03e6a24eba7ddb21f14329d090bc498ca3f718cbbe9f7a6a8df3f32215b4d24edf054bbdd1592256052c69801ed7bf05abcf4e6aae90f7bc5024e182
SSDEEP:	1536:ybFW+qVeLmOeRbRsbBN0ni1eKVYIn9AijQWnmTgLrgYWjH:kFsVeaOeZibBNhLeIn9AijQqmT47WjH
TLSH:	39530173805D64A04D7A516298540FC74A3A92BCAFCE3053F9B3D15F97E27624AFA0E3
File Content Preview:	.ELF...a..........(.....Tc..4...........4. ...(..........................................................+..........Q.td..............................q.YTS.@........G...G......U..........?.E.h;.}...^..........fZ.....D.=V.W....;..7z.v.C...........HU..L....

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:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x16354
Flags:	0x202
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
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
LOAD	0x0	0x8000	0x8000	0xf488	0xf488	7.9851	0x5	R E	0x8000
LOAD	0x0	0x18000	0x18000	0x0	0x32bf4	0.0000	0x6	RW	0x8000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 23, 2024 10:25:00.774774075 CEST	43384	443	192.168.2.14	54.247.62.1
Apr 23, 2024 10:25:29.272308111 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.272367001 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.272491932 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.274660110 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.274683952 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.913644075 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.913889885 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.914542913 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.914570093 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.916613102 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.916732073 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.918648005 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.918749094 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.918848038 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.918865919 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:29.918920994 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.918952942 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:29.964116096 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:30.124268055 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:30.124388933 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:30.124459028 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:30.124556065 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:30.124583960 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:30.124672890 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:30.124757051 CEST	443	37910	54.171.230.55	192.168.2.14
Apr 23, 2024 10:25:30.125221968 CEST	37910	443	192.168.2.14	54.171.230.55
Apr 23, 2024 10:25:30.125257015 CEST	443	37910	54.171.230.55	192.168.2.14

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 23, 2024 10:25:02.900693893 CEST	38415	53	192.168.2.14	1.1.1.1
Apr 23, 2024 10:25:02.900693893 CEST	49258	53	192.168.2.14	1.1.1.1
Apr 23, 2024 10:25:03.005053997 CEST	53	38415	1.1.1.1	192.168.2.14
Apr 23, 2024 10:25:03.005109072 CEST	53	49258	1.1.1.1	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 23, 2024 10:25:02.900693893 CEST	192.168.2.14	1.1.1.1	0xe316	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Apr 23, 2024 10:25:02.900693893 CEST	192.168.2.14	1.1.1.1	0x619	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
Apr 23, 2024 10:25:03.005053997 CEST	1.1.1.1	192.168.2.14	0xe316	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Apr 23, 2024 10:25:03.005053997 CEST	1.1.1.1	192.168.2.14	0xe316	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

HTTP Request Dependency Graph

motd.ubuntu.com

HTTPS Proxied Packets

Session ID	Source IP	Source Port	Destination IP	Destination Port
0	192.168.2.14	37910	54.171.230.55	443

Timestamp	Bytes transferred	Direction	Data
2024-04-23 08:25:29 UTC	249	OUT	GET / HTTP/1.1 User-Agent: wget/1.20.3-1ubuntu1 Ubuntu/20.04.2/LTS GNU/Linux/5.4.0-72-generic/x86_64 Intel(R)/Xeon(R)/Silver/4210/CPU/@/2.20GHz cloud_id/none Accept: / Accept-Encoding: identity Host: motd.ubuntu.com Connection: Keep-Alive
2024-04-23 08:25:30 UTC	271	IN	HTTP/1.1 200 OK Date: Tue, 23 Apr 2024 08:25:30 GMT Server: Apache/2.4.18 (Ubuntu) Last-Modified: Tue, 23 Apr 2024 08:15:21 GMT ETag: "d8-616bf27bd3e8e" Accept-Ranges: bytes Content-Length: 216 Vary: Accept-Encoding Connection: close Content-Type: text/plain
2024-04-23 08:25:30 UTC	216	IN	Data Raw: 20 2a 20 53 74 72 69 63 74 6c 79 20 63 6f 6e 66 69 6e 65 64 20 4b 75 62 65 72 6e 65 74 65 73 20 6d 61 6b 65 73 20 65 64 67 65 20 61 6e 64 20 49 6f 54 20 73 65 63 75 72 65 2e 20 4c 65 61 72 6e 20 68 6f 77 20 4d 69 63 72 6f 4b 38 73 0a 20 20 20 6a 75 73 74 20 72 61 69 73 65 64 20 74 68 65 20 62 61 72 20 66 6f 72 20 65 61 73 79 2c 20 72 65 73 69 6c 69 65 6e 74 20 61 6e 64 20 73 65 63 75 72 65 20 4b 38 73 20 63 6c 75 73 74 65 72 20 64 65 70 6c 6f 79 6d 65 6e 74 2e 0a 0a 20 20 20 68 74 74 70 73 3a 2f 2f 75 62 75 6e 74 75 2e 63 6f 6d 2f 65 6e 67 61 67 65 2f 73 65 63 75 72 65 2d 6b 75 62 65 72 6e 65 74 65 73 2d 61 74 2d 74 68 65 2d 65 64 67 65 0a Data Ascii: * Strictly confined Kubernetes makes edge and IoT secure. Learn how MicroK8s just raised the bar for easy, resilient and secure K8s cluster deployment. https://ubuntu.com/engage/secure-kubernetes-at-the-edge

System Behavior

Analysis Process: gwX4DFn6ue.elf PID: 5480, Parent PID: 5401

General

Start time (UTC):	08:25:00
Start date (UTC):	23/04/2024
Path:	/tmp/gwX4DFn6ue.elf
Arguments:	/tmp/gwX4DFn6ue.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.fp4DJdWBoT /tmp/tmp.8HjWXLsyfB /tmp/tmp.nLnZo31oWc
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.fp4DJdWBoT
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.fp4DJdWBoT
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Start time (UTC):	08:25:29
Start date (UTC):	23/04/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.fp4DJdWBoT /tmp/tmp.8HjWXLsyfB /tmp/tmp.nLnZo31oWc
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Source: gwX4DFn6ue.elf	ReversingLabs: Detection: 36%
Source: gwX4DFn6ue.elf	Virustotal: Detection: 34%			Perma Link

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

Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
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: 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	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

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

Description:	Adversaries may transfer tools or other files from an external system into a compromised environment. Tools or files may be copied from an external adversary-controlled system to the victim network through the command and control channel or through alternate protocols such as ftp . Once present, adversaries may also transfer/spread tools between victim devices within a compromised environment (i.e. Lateral Tool Transfer ).
Tactics:	Command and Control
Data Sources:	Command: Command Execution, File: File Creation, Network Traffic: Network Connection Creation, 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 gwX4DFn6ue.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Runtime Messages

Process Tree

Yara Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

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

Contacted URLs

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

UDP Packets

DNS Queries

DNS Answers

HTTP Request Dependency Graph

HTTPS Proxied Packets

System Behavior

Analysis Process: gwX4DFn6ue.elf PID: 5480, Parent PID: 5401

General

Chronological Activities

Analysis Process: dash PID: 5549, Parent PID: 3633

General

Chronological Activities

Analysis Process: rm PID: 5549, Parent PID: 3633

General

Chronological Activities

Analysis Process: dash PID: 5550, Parent PID: 3633

General

Chronological Activities

Analysis Process: cat PID: 5550, Parent PID: 3633

General

Chronological Activities

Analysis Process: dash PID: 5551, Parent PID: 3633

General

Chronological Activities

Analysis Process: head PID: 5551, Parent PID: 3633

General

Linux Analysis Report
gwX4DFn6ue.elf