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Linux Analysis Report
bot.arm6.elf

Overview

General Information

Sample name:	bot.arm6.elf
Analysis ID:	1644147
MD5:	28f01c2a0d4f5c3f9165ad803ec2c17c
SHA1:	c2951c1ad8477c61b7081c6e170a92ec2050c8f9
SHA256:	a5bdbebe92a209ff02ddb1d39f170f77b2214ee810dca344c4a6bae5bb3372b1
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	52
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

Sample is packed with UPX

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:	42.0.0 Malachite
Analysis ID:	1644147
Start date and time:	2025-03-20 12:01:30 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 30s
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:	bot.arm6.elf
Detection:	MAL
Classification:	mal52.evad.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/bot.arm6.elf
PID:	5472
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

bot.arm6.elf (PID: 5472, Parent: 5397, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/bot.arm6.elf

dash New Fork (PID: 5545, Parent: 3634)

rm (PID: 5545, Parent: 3634, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.9nF0eKPpg7 /tmp/tmp.LmtYsLxOlG /tmp/tmp.wF3HyaqTrp

dash New Fork (PID: 5546, Parent: 3634)

cat (PID: 5546, Parent: 3634, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.9nF0eKPpg7

dash New Fork (PID: 5547, Parent: 3634)

head (PID: 5547, Parent: 3634, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5548, Parent: 3634)

tr (PID: 5548, Parent: 3634, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5549, Parent: 3634)

cut (PID: 5549, Parent: 3634, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5550, Parent: 3634)

cat (PID: 5550, Parent: 3634, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.9nF0eKPpg7

dash New Fork (PID: 5551, Parent: 3634)

head (PID: 5551, Parent: 3634, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5552, Parent: 3634)

tr (PID: 5552, Parent: 3634, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5553, Parent: 3634)

cut (PID: 5553, Parent: 3634, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5554, Parent: 3634)

rm (PID: 5554, Parent: 3634, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.9nF0eKPpg7 /tmp/tmp.LmtYsLxOlG /tmp/tmp.wF3HyaqTrp

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: global traffic

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

Source: bot.arm6.elf

String found in binary or memory: http://upx.sf.net

Source: unknown	Network traffic detected: HTTP traffic on port 59330 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 43384 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 59330
Source: unknown	Network traffic detected: HTTP traffic on port 46540 -> 443

Source: LOAD without section mappings

Program segment: 0x8000

Source: classification engine

Classification label: mal52.evad.linELF@0/0@2/0

Data Obfuscation

Sample is packed with UPX

Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
Source: initial sample	String containing UPX found: $Id: UPX 3.95 Copyright (C) 1996-2018 the UPX Team. All Rights Reserved. $

Source: /usr/bin/dash (PID: 5545)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.9nF0eKPpg7 /tmp/tmp.LmtYsLxOlG /tmp/tmp.wF3HyaqTrp			Jump to behavior
Source: /usr/bin/dash (PID: 5554)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.9nF0eKPpg7 /tmp/tmp.LmtYsLxOlG /tmp/tmp.wF3HyaqTrp			Jump to behavior

Source: bot.arm6.elf

Submission file: segment LOAD with 7.9756 entropy (max. 8.0)

Source: /tmp/bot.arm6.elf (PID: 5472)

Queries kernel information via 'uname':

Jump to behavior

Source: bot.arm6.elf, 5472.1.000055b93b55b000.000055b93b689000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: bot.arm6.elf, 5472.1.00007fffe4567000.00007fffe4588000.rw-.sdmp	Binary or memory string: =x86_64/usr/bin/qemu-arm/tmp/bot.arm6.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/bot.arm6.elf
Source: bot.arm6.elf, 5472.1.000055b93b55b000.000055b93b689000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: bot.arm6.elf, 5472.1.00007fffe4567000.00007fffe4588000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: bot.arm6.elf, 5472.1.00007fffe4567000.00007fffe4588000.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	11 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
bot.arm6.elf	39%	Virustotal		Browse
bot.arm6.elf	42%	ReversingLabs	Linux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.24	true	false		high

Contacted URLs

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

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	bot.arm6.elf	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	ASN	ASN Name	Malicious
185.125.190.26	unknown	United Kingdom	41231	CANONICAL-ASGB	false
34.254.182.186	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
185.125.190.26	hiss.arm7.elf	Get hash	malicious	Unknown	Browse
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse
	resgod.arm7.elf	Get hash	malicious	Mirai	Browse
	gigab.i686.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	jkse.arm6.elf	Get hash	malicious	Unknown	Browse
	nklarm6.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
34.254.182.186	hiss.arm7.elf	Get hash	malicious	Unknown	Browse
	resgod.mpsl.elf	Get hash	malicious	Mirai	Browse
	resgod.arm7.elf	Get hash	malicious	Mirai	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	x-8.6-.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	8893Xmi39S.arm5.elf	Get hash	malicious	Unknown	Browse
	sparc.nn.elf	Get hash	malicious	Mirai, Okiru	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	hidakibest.ppc.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	main_arm7.elf	Get hash	malicious	Mirai	Browse
54.247.62.1	arc.elf	Get hash	malicious	Mirai	Browse
	gigab.i686.elf	Get hash	malicious	Unknown	Browse
	jkse.arm7.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	apep.arm.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	rrrdsl.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	powerpc.nn.elf	Get hash	malicious	Mirai	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	bot.mips.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	bot.arm7.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	45.126.126.33-sora.arm6-2025-03-12T03_35_14.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	45.126.126.33-sora.sh4-2025-03-12T01_48_23.elf	Get hash	malicious	Mirai	Browse	162.213.35.25
	gigab.sh4.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	mpsl.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	arm7.elf	Get hash	malicious	Mirai	Browse	162.213.35.24
	arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	sh4.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	arm.elf	Get hash	malicious	Mirai	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AMAZON-02US	http://camsapi.camsoline.com	Get hash	malicious	Unknown	Browse	13.33.252.88
	https://www.flugger.pl/	Get hash	malicious	Unknown	Browse	3.161.136.94
	https://www.flugger.pl/	Get hash	malicious	Unknown	Browse	108.138.128.64
	Electronic_Invoice(20 Mar 2025).pdf.html	Get hash	malicious	HTMLPhisher	Browse	3.168.73.87
	i.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
	tftp.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	miner.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	microsftgoodforenoughtogetstory.hta	Get hash	malicious	Cobalt Strike, FormBook	Browse	13.248.243.5
	nicenamewithgreatskillworkingon.hta	Get hash	malicious	Cobalt Strike, FormBook	Browse	13.248.243.5
AMAZON-02US	http://camsapi.camsoline.com	Get hash	malicious	Unknown	Browse	13.33.252.88
	https://www.flugger.pl/	Get hash	malicious	Unknown	Browse	3.161.136.94
	https://www.flugger.pl/	Get hash	malicious	Unknown	Browse	108.138.128.64
	Electronic_Invoice(20 Mar 2025).pdf.html	Get hash	malicious	HTMLPhisher	Browse	3.168.73.87
	i.elf	Get hash	malicious	Mirai	Browse	54.171.230.55
	tftp.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	miner.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	microsftgoodforenoughtogetstory.hta	Get hash	malicious	Cobalt Strike, FormBook	Browse	13.248.243.5
	nicenamewithgreatskillworkingon.hta	Get hash	malicious	Cobalt Strike, FormBook	Browse	13.248.243.5
CANONICAL-ASGB	bot.arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	main_ppc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	main_arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	45.126.126.33-sora.spc-2025-03-12T01_48_28.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	i.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	tftp.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	miner.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	miner.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Source: bot.arm6.elf	Virustotal: Detection: 38%			Perma Link
Source: bot.arm6.elf	ReversingLabs: Detection: 41%

Source: unknown	TCP traffic detected without corresponding DNS query: 54.247.62.1
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 34.254.182.186
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
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

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.986497134934879
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	bot.arm6.elf
File size:	68'644 bytes
MD5:	28f01c2a0d4f5c3f9165ad803ec2c17c
SHA1:	c2951c1ad8477c61b7081c6e170a92ec2050c8f9
SHA256:	a5bdbebe92a209ff02ddb1d39f170f77b2214ee810dca344c4a6bae5bb3372b1
SHA512:	dbb0c9460d85ca331a7de46ad166100e11c4393b4eb72038fe12b202b801f6846caa32847fec15aada92766a1eaf7b4cfb16f8aca60f814eb2a863e88c4ad929
SSDEEP:	1536:oaiEmoySCq6IdlGoA+OvPeRBnu2U1K7PreppjMcYfa6IvdZSapXEXu:FmoyhqNGLWTnumSxbD6Ivr5E+
TLSH:	D163023BD5A3AEFE11782C3C2533D407209A1E3AD2B1277DEAC34946FCE198A476C644
File Content Preview:	.ELF..............(.....\|&..4...........4. ...(..........................................................}..........Q.td............................x.?.UPX!........&...&.......l..........?.E.h;....#..$...o...w..........Z........W...B$(s^.....6.....r.~D.9`

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 - Linux
ABI Version:	0
Entry Point Address:	0x1267c
Flags:	0x4000002
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

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x8000	0x8000	0xb87f	0xb87f	7.9756	0x5	R E	0x8000
LOAD	0x0	0x18000	0x18000	0x0	0x17dac	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
Mar 20, 2025 12:02:12.480715990 CET	43384	443	192.168.2.14	54.247.62.1
Mar 20, 2025 12:02:20.416322947 CET	46540	443	192.168.2.14	185.125.190.26
Mar 20, 2025 12:02:40.982664108 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:40.982686996 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:40.982790947 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:40.984414101 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:40.984427929 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.185739994 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.185873032 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.186106920 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.186115980 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.188785076 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.188842058 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.189502001 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.189623117 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.189666033 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.189671993 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.189707994 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.359504938 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.359669924 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:47.359673977 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.360361099 CET	59330	443	192.168.2.14	34.254.182.186
Mar 20, 2025 12:02:47.360379934 CET	443	59330	34.254.182.186	192.168.2.14
Mar 20, 2025 12:02:51.903238058 CET	46540	443	192.168.2.14	185.125.190.26

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 20, 2025 12:02:14.128767967 CET	41972	53	192.168.2.14	1.1.1.1
Mar 20, 2025 12:02:14.128912926 CET	55524	53	192.168.2.14	1.1.1.1
Mar 20, 2025 12:02:14.230093002 CET	53	55524	1.1.1.1	192.168.2.14
Mar 20, 2025 12:02:14.230377913 CET	53	41972	1.1.1.1	192.168.2.14

Timestamp	Bytes transferred	Direction	Data
2025-03-20 11:02:47 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
2025-03-20 11:02:47 UTC	271	IN	HTTP/1.1 200 OK Date: Thu, 20 Mar 2025 11:02:47 GMT Server: Apache/2.4.18 (Ubuntu) Last-Modified: Thu, 20 Mar 2025 11:00:45 GMT ETag: "d8-630c40cc09ccb" Accept-Ranges: bytes Content-Length: 216 Vary: Accept-Encoding Connection: close Content-Type: text/plain
2025-03-20 11:02:47 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

Start time (UTC):	11:02:12
Start date (UTC):	20/03/2025
Path:	/tmp/bot.arm6.elf
Arguments:	/tmp/bot.arm6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Start time (UTC):	11:02:46
Start date (UTC):	20/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

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 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 bot.arm6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted URLs

URLs from Memory and Binaries

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: bot.arm6.elf PID: 5472, Parent PID: 5397

General

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5545, Parent PID: 3634

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5545, Parent PID: 3634

General

File Activities

Linux Analysis Report
bot.arm6.elf