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Linux Analysis Report
armv4eb.elf

Overview

General Information

Sample name:	armv4eb.elf
Analysis ID:	1580576
MD5:	c7b9810adf6f9bff04c63a5032af6c93
SHA1:	5743260bade22218e7c5e9acc389ea12a43aa456
SHA256:	d4264092f6981bbcfaa1455bb1da08cb85860bbccc4c8601e30d80ec7f6c1e06
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	64
Range:	0 - 100
Whitelisted:	false

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

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

Sample deletes itself

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

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample contains strings indicative of password brute-forcing capabilities

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:	1580576
Start date and time:	2024-12-25 10:22:04 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 40s
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:	armv4eb.elf
Detection:	MAL
Classification:	mal64.spyw.evad.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/armv4eb.elf
PID:	6249
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 6225, Parent: 4331)

rm (PID: 6225, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.fmMy4p1dRw /tmp/tmp.KqRZRo96Jd /tmp/tmp.n8gs88aJ10

dash New Fork (PID: 6226, Parent: 4331)

rm (PID: 6226, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.fmMy4p1dRw /tmp/tmp.KqRZRo96Jd /tmp/tmp.n8gs88aJ10

armv4eb.elf (PID: 6249, Parent: 6151, MD5: 6ef685c2c206c9caa9a952987789a1a5) Arguments: /tmp/armv4eb.elf

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: armv4eb.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: armv4eb.elf	Virustotal: Detection: 48%			Perma Link
Source: armv4eb.elf	ReversingLabs: Detection: 44%

Networking

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

Source: /tmp/armv4eb.elf (PID: 6249)	Opens: /sys/class/net/	Jump to behavior
Source: /tmp/armv4eb.elf (PID: 6249)	Opens: /sys/class/net/ens160/address	Jump to behavior
Source: /tmp/armv4eb.elf (PID: 6249)	Opens: /sys/class/net/ens160/flags	Jump to behavior
Source: /tmp/armv4eb.elf (PID: 6249)	Opens: /sys/class/net/ens160/carrier	Jump to behavior

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	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: Initial sample	String containing 'busybox' found: /bin/busybox echo -en '
Source: Initial sample	String containing 'busybox' found: .d && /bin/busybox echo -e '\x46\x49\x4e'
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo '
Source: Initial sample	String containing 'busybox' found: /bin/busybox chmod 777 .d; ./.d > .b; /bin/busybox chmod 777 .b; ./.b matrix
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -en ''>.d && /bin/busybox echo -e '\x46\x49\x4e'
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo '\c'>>/bin/busybox chmod 777 .d; ./.d > .b; /bin/busybox chmod 777 .b; ./.b matrix
Source: Initial sample	String containing 'busybox' found: rm -rf .d; rm -rf .b; >.d; (chmod 777 .d \|\| /bin/busybox chmod 777 .d \|\| cp /bin/sh .d; >.d); >.b; (chmod 777 .b \|\| /bin/busybox chmod 777 .b \|\| cp /bin/sh .b; >.b)
Source: Initial sample	String containing 'busybox' found: /bin/busybox cat /proc/self/exe \|\| cat /bin/echo
Source: Initial sample	String containing 'busybox' found: /bin/busybox wget --help; /bin/busybox ftpget --help; /bin/busybox echo -e '\x67\x61\x79\x66\x67\x74';
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -e '\x53\x54\x41\x52\x54'; cat /proc/cpuinfo; /bin/busybox echo -e '\x45\x4e\x44'
Source: Initial sample	String containing 'busybox' found: BusyBox on \S+ \wogin
Source: Initial sample	String containing 'busybox' found: ELFsage: wgetsage: ftpgetgayfgt/bin/busybox echo -e '\x53\x54\x41\x52\x54'; cat /proc/cpuinfo; /bin/busybox echo -e '\x45\x4e\x44'
Source: Initial sample	String containing 'busybox' found: /usr//mnt//var/run//dev/shm//etc//var//tmp//dev//var/home/user/fw/admin1231234666666ubnt888888klv12340000111111111111123451234561234567890admin12601hx4321543216543217ujMko0admin88888888a1sev5y7c39kAdminadmin123AdmiN123admin1234adminHWadminpassBrAhMoS@15CalVxePV1! cat1029CenturyL1nkchzhdplconexantCTLsupport12cxx4dm1n5591epicrouterGeNeXiS@19gponAdminGPONALC#FGUgw1adminh@32LuyDho4uku6atadministratorAdministratorsupervisormeinsmmicrobusinessnology/P@55w0rd!passpasswordplumeria0077QwestM0demripcode!roots2@We3%Dc#smcadminstdONU101systemtechTeleCom_1234telnetv2mprtve0RbANGXpon@Olt9417##xTaaA8jzhoneadtecadtecftpbinCMCCAdmine8telnetCUAdmindaemondefaulttluafedvhd1206e8ehome1e8ehomee8ehomeasbhi3518EpuseruserEpfliruser3vligftpvideoguestguest123!!Huawei@HuaweiHgwkeomeolnadminlnadmin0123456mg3500merlinmothernobodyontONTUSERSUGAR2A041rapportr@p8p0r+remotessh5SaP9I26!@#$qwer00000000000000000000059AnkJ070admin11001chin11111111234qwer1.oN%cpi2010vesta2011vesta207B16th23we98oi258025804uvdzKqBkj.jg5up/*6.=_ja7ujMko0vizxvadminp

Source: Initial sample	String containing potential weak password found: admin
Source: Initial sample	String containing potential weak password found: 12345
Source: Initial sample	String containing potential weak password found: 123456
Source: Initial sample	String containing potential weak password found: 54321
Source: Initial sample	String containing potential weak password found: 654321
Source: Initial sample	String containing potential weak password found: admin1234
Source: Initial sample	String containing potential weak password found: administrator
Source: Initial sample	String containing potential weak password found: supervisor
Source: Initial sample	String containing potential weak password found: password
Source: Initial sample	String containing potential weak password found: default
Source: Initial sample	String containing potential weak password found: guest
Source: Initial sample	String containing potential weak password found: service
Source: Initial sample	String containing potential weak password found: support

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal64.spyw.evad.linELF@0/0@0/0

Source: /usr/bin/dash (PID: 6225)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.fmMy4p1dRw /tmp/tmp.KqRZRo96Jd /tmp/tmp.n8gs88aJ10			Jump to behavior
Source: /usr/bin/dash (PID: 6226)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.fmMy4p1dRw /tmp/tmp.KqRZRo96Jd /tmp/tmp.n8gs88aJ10			Jump to behavior

Hooking and other Techniques for Hiding and Protection

Sample deletes itself

Source: /tmp/armv4eb.elf (PID: 6249)

File: /tmp/armv4eb.elf

Jump to behavior

Source: /tmp/armv4eb.elf (PID: 6249)

Queries kernel information via 'uname':

Jump to behavior

Source: armv4eb.elf, 6249.1.0000562c4187b000.0000562c419c9000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/armeb
Source: armv4eb.elf, 6249.1.00007ffe97d83000.00007ffe97da4000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-armeb
Source: armv4eb.elf, 6249.1.00007ffe97d83000.00007ffe97da4000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-armeb/tmp/armv4eb.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/armv4eb.elf
Source: armv4eb.elf, 6249.1.0000562c4187b000.0000562c419c9000.rw-.sdmp	Binary or memory string: A,V!/etc/qemu-binfmt/armeb

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	1 Brute Force	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 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
armv4eb.elf	48%	Virustotal		Browse
armv4eb.elf	45%	ReversingLabs	Linux.Backdoor.Gafgyt
armv4eb.elf	100%	Avira	EXP/ELF.Mirai.D

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	armv4eb.elf	Get hash	malicious	Mirai	Browse
	zmap.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse
	x86_64.nn.elf	Get hash	malicious	Okiru	Browse
	nsharm5.elf	Get hash	malicious	Unknown	Browse
	sh4.nn.elf	Get hash	malicious	Okiru	Browse
	mipsel.nn.elf	Get hash	malicious	Okiru	Browse
	zerarm6.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	hidakibest.arm7.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	Space.x86.elf	Get hash	malicious	Mirai	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	armv5l.elf	Get hash	malicious	Unknown	Browse
	armv4eb.elf	Get hash	malicious	Unknown	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	armv4eb.elf	Get hash	malicious	Mirai	Browse
	most-arm7.elf	Get hash	malicious	Mirai	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	zmap.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse
	zmap.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse
	x86.elf	Get hash	malicious	Unknown	Browse
	zmap.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse
91.189.91.42	armv5l.elf	Get hash	malicious	Unknown	Browse
	armv4eb.elf	Get hash	malicious	Unknown	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	armv4eb.elf	Get hash	malicious	Mirai	Browse
	most-arm7.elf	Get hash	malicious	Mirai	Browse
	arm5.elf	Get hash	malicious	Unknown	Browse
	zmap.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse
	zmap.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse
	x86.elf	Get hash	malicious	Unknown	Browse
	zmap.mpsl.elf	Get hash	malicious	Mirai, Okiru	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	armv5l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	armv4eb.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loligang.arm5.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	armv4eb.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	most-arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	zmap.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	zmap.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	armv5l.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	armv4eb.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	loligang.arm5.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	armv4eb.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	most-arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm5.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	zmap.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	zmap.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
AMAZON-02US	telnet.x86.elf	Get hash	malicious	Unknown	Browse	54.154.23.188
	https://email.equifaxbreachsettlement.com/c/eJwUys9qtDAQAPCnSY6STLL_DjnIp4GFr-3iLrX0EuLMiMLqWo1r-_al9x-5yDrGo2SnD8YednvYK9m5lhEPSJpaYtPgDk-NUUQKCS3r2MjegQKrAbSy1oLKWmC1UycbkU9asxZW8dfat_G7mTlit3BKdx54TBk-Bnl3XUrTIkwuwAvw27Zlw8808xR7Qh4Tz39OgJ-ZmAdhPOODWJiihuP7y__al5_1Vc5uoPhMfRyFVeuCGdMqkyv9R7hUb6HKb3m4VOUlPxfhX14VoThfb-Favhby6eA3AAD__0qSUF8	Get hash	malicious	Unknown	Browse	18.221.139.220
	http://assets.website-files.com/65efffe8d4e10d26910f0543/65f65633ab8b2f021b357c18_64146967722.pdf	Get hash	malicious	Unknown	Browse	52.211.121.244
	armv5l.elf	Get hash	malicious	Mirai	Browse	52.11.1.37
	armv6l.elf	Get hash	malicious	Mirai	Browse	13.210.214.39
	loligang.mpsl.elf	Get hash	malicious	Mirai	Browse	65.1.40.160
	loligang.arm.elf	Get hash	malicious	Mirai	Browse	13.243.198.228
	loligang.x86.elf	Get hash	malicious	Mirai	Browse	34.213.27.51
	PodcastsTries.exe	Get hash	malicious	Vidar	Browse	18.238.49.124
	armv7l.elf	Get hash	malicious	Mirai	Browse	18.249.209.66
INIT7CH	armv5l.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	armv4eb.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	armv4eb.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	most-arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	arm5.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	zmap.ppc.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	zmap.sh4.elf	Get hash	malicious	Mirai, Okiru	Browse	109.202.202.202
	x86.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	zmap.mpsl.elf	Get hash	malicious	Mirai, Okiru	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, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):	4.747996272312419
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	armv4eb.elf
File size:	222'268 bytes
MD5:	c7b9810adf6f9bff04c63a5032af6c93
SHA1:	5743260bade22218e7c5e9acc389ea12a43aa456
SHA256:	d4264092f6981bbcfaa1455bb1da08cb85860bbccc4c8601e30d80ec7f6c1e06
SHA512:	caae2dda9f7c03a418ee04a63e904a02075a1d19c0ae128c39f79203dc8462620fbdceddb648d428bd66aa3c5db635bfb465d17d6c2e9733099bcbda966fa53b
SSDEEP:	3072:Fis/2DsmLhsj8zwqGzksxYBH3PIABZvAd8ZGBXVdZ:wd/L6j8KzkPHA2ZvZKzZ
TLSH:	6E24F8C3A619C426D64CDC32597A7B8D3F26C157C9C2F301E004E68F779BE6B28A85E5
File Content Preview:	.ELF...a...........(...........4..b......4. ...(..........................................0...0...0...2<............dt.Q.................................-...L.....".._h.........-@0..P\..0..S.....0..@P..0... ..R........0...0...........0... ..R........0 .S.

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	ARM - ABI
ABI Version:	0
Entry Point Address:	0x8190
Flags:	0x202
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	221828
Section Header Size:	40
Number of Section Headers:	11
Header String Table Index:	10

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x18	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x17dd8	0x0	0x6	AX	16
.fini	PROGBITS	0x1fe88	0x17e88	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x1fe9c	0x17e9c	0xb014	0x0	0x2	A	4
.eh_frame	PROGBITS	0x33000	0x23000	0x4	0x0	0x3	WA	4
.ctors	PROGBITS	0x33004	0x23004	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x3300c	0x2300c	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x33018	0x23018	0x13224	0x0	0x3	WA	4
.bss	NOBITS	0x4623c	0x3623c	0x49b98	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x3623c	0x48	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x22eb0	0x22eb0	6.0218	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x23000	0x33000	0x33000	0x1323c	0x5cdd4	0.7327	0x6	RW	0x8000	.eh_frame .ctors .dtors .data .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
Dec 25, 2024 10:22:49.224987030 CET	443	33606	54.171.230.55	192.168.2.23
Dec 25, 2024 10:22:49.225126982 CET	33606	443	192.168.2.23	54.171.230.55
Dec 25, 2024 10:22:49.345591068 CET	443	33606	54.171.230.55	192.168.2.23
Dec 25, 2024 10:22:51.249994040 CET	43928	443	192.168.2.23	91.189.91.42
Dec 25, 2024 10:22:56.881283045 CET	42836	443	192.168.2.23	91.189.91.43
Dec 25, 2024 10:22:58.161144018 CET	42516	80	192.168.2.23	109.202.202.202
Dec 25, 2024 10:23:12.751245022 CET	43928	443	192.168.2.23	91.189.91.42
Dec 25, 2024 10:23:22.989888906 CET	42836	443	192.168.2.23	91.189.91.43
Dec 25, 2024 10:23:29.133009911 CET	42516	80	192.168.2.23	109.202.202.202
Dec 25, 2024 10:23:53.705796957 CET	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: dash PID: 6225, Parent PID: 4331

General

Start time (UTC):	09:22:48
Start date (UTC):	25/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6225, Parent PID: 4331

General

Start time (UTC):	09:22:48
Start date (UTC):	25/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.fmMy4p1dRw /tmp/tmp.KqRZRo96Jd /tmp/tmp.n8gs88aJ10
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 6226, Parent PID: 4331

General

Start time (UTC):	09:22:48
Start date (UTC):	25/12/2024
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 6226, Parent PID: 4331

General

Start time (UTC):	09:22:48
Start date (UTC):	25/12/2024
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.fmMy4p1dRw /tmp/tmp.KqRZRo96Jd /tmp/tmp.n8gs88aJ10
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: armv4eb.elf PID: 6249, Parent PID: 6151

General

Start time (UTC):	09:22:48
Start date (UTC):	25/12/2024
Path:	/tmp/armv4eb.elf
Arguments:	/tmp/armv4eb.elf
File size:	4965048 bytes
MD5 hash:	6ef685c2c206c9caa9a952987789a1a5

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 use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained. Without knowledge of the password for an account or set of accounts, an adversary may systematically guess the password using a repetitive or iterative mechanism. Brute forcing passwords can take place via interaction with a service that will check the validity of those credentials or offline against previously acquired credential data, such as password hashes.
Tactics:	Credential Access
Data Sources:	Application Log: Application Log Content, Command: Command Execution, User Account: User Account Authentication
Platforms:	Azure AD, Containers, Google Workspace, IaaS, Linux, macOS, Network, Office 365, SaaS, 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 ...

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Linux Analysis Report armv4eb.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

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: dash PID: 6225, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6225, Parent PID: 4331

General

Chronological Activities

Analysis Process: dash PID: 6226, Parent PID: 4331

General

Chronological Activities

Analysis Process: rm PID: 6226, Parent PID: 4331

General

Chronological Activities

Analysis Process: armv4eb.elf PID: 6249, Parent PID: 6151

General

Chronological Activities

Linux Analysis Report
armv4eb.elf