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Linux Analysis Report
vtuYyqk0Xt.elf

Overview

General Information

Sample name:	vtuYyqk0Xt.elf renamed because original name is a hash value
Original sample name:	793be16fef4f582681cbce1dccbb7bef.elf
Analysis ID:	1432416
MD5:	793be16fef4f582681cbce1dccbb7bef
SHA1:	9ba868063f527b9dd3b2e6ef6a593443a9e12198
SHA256:	fb088cec2214538871e219a8f90f737cbdb9b759d2473d92efe9de084fbc9e30
Tags:	32armelfmirai
Infos:

Detection

Gafgyt

Score:	64
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Yara detected Gafgyt

Deletes system log files

Manipulation of devices in /dev

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Sample listens on a socket

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

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.

All HTTP servers contacted by the sample do not answer. The sample is likely an old dropper which does no longer work.

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:	1432416
Start date and time:	2024-04-27 01:29:05 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 37s
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:	vtuYyqk0Xt.elf renamed because original name is a hash value
Original Sample Name:	793be16fef4f582681cbce1dccbb7bef.elf
Detection:	MAL
Classification:	mal64.troj.evad.linELF@0/0@1/0

Warnings

VT rate limit hit for: vtuYyqk0Xt.elf

Runtime Messages

Command:	/tmp/vtuYyqk0Xt.elf
PID:	6222
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	guess what. you're retarded
Standard Error:

Process Tree

system is lnxubuntu20

vtuYyqk0Xt.elf (PID: 6222, Parent: 6135, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/vtuYyqk0Xt.elf

vtuYyqk0Xt.elf New Fork (PID: 6224, Parent: 6222)

vtuYyqk0Xt.elf New Fork (PID: 6226, Parent: 6224)

vtuYyqk0Xt.elf New Fork (PID: 6228, Parent: 6224)

vtuYyqk0Xt.elf New Fork (PID: 6230, Parent: 6224)

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Bashlite, Gafgyt	Bashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps.	No Attribution	http://blog.trendmicro.com/trendlabs-security-intelligence/bashlite-affects-devices-running-on-busybox/ https://blog.cyber5w.com/gafgyt-backdoor-analysis https://blog.netlab.360.com/gafgtyt_tor-and-necro-are-on-the-move-again/ https://blog.netlab.360.com/public-cloud-threat-intelligence-202203/ https://blog.netlab.360.com/some_details_of_the_ddos_attacks_targeting_ukraine_and_russia_in_recent_days/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
vtuYyqk0Xt.elf	JoeSecurity_Gafgyt	Yara detected Gafgyt	Joe Security

Memory Dumps

Source	Rule	Description	Author	Strings
6226.1.00007f95f0017000.00007f95f0038000.r-x.sdmp	JoeSecurity_Gafgyt	Yara detected Gafgyt	Joe Security
6222.1.00007f95f0017000.00007f95f0038000.r-x.sdmp	JoeSecurity_Gafgyt	Yara detected Gafgyt	Joe Security

Snort Signatures

⊘No Snort rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: vtuYyqk0Xt.elf

ReversingLabs: Detection: 52%

Source: global traffic

TCP traffic: 192.168.2.23:60500 -> 94.156.248.19:5667

Source: /tmp/vtuYyqk0Xt.elf (PID: 6222)

Socket: 127.0.0.1::46373

Jump to behavior

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

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	UDP traffic detected without corresponding DNS query: 134.195.4.2

Source: global traffic

DNS traffic detected: DNS query: retardedclassmate.dyn

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal64.troj.evad.linELF@0/0@1/0

Data Obfuscation

Manipulation of devices in /dev

Source: /tmp/vtuYyqk0Xt.elf (PID: 6230)

Deleted: /dev/kmsg

Jump to behavior

Hooking and other Techniques for Hiding and Protection

Deletes system log files

Source: /tmp/vtuYyqk0Xt.elf (PID: 6230)

Log files deleted: /var/log/kern.log

Jump to behavior

Source: /tmp/vtuYyqk0Xt.elf (PID: 6222)

Queries kernel information via 'uname':

Jump to behavior

Source: vtuYyqk0Xt.elf, 6222.1.00007ffcbb3ee000.00007ffcbb40f000.rw-.sdmp, vtuYyqk0Xt.elf, 6226.1.00007ffcbb3ee000.00007ffcbb40f000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/vtuYyqk0Xt.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/vtuYyqk0Xt.elf
Source: vtuYyqk0Xt.elf, 6222.1.000055ae47fa9000.000055ae4811f000.rw-.sdmp, vtuYyqk0Xt.elf, 6226.1.000055ae47fa9000.000055ae4811f000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: vtuYyqk0Xt.elf, 6222.1.000055ae47fa9000.000055ae4811f000.rw-.sdmp, vtuYyqk0Xt.elf, 6226.1.000055ae47fa9000.000055ae4811f000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: vtuYyqk0Xt.elf, 6222.1.00007ffcbb3ee000.00007ffcbb40f000.rw-.sdmp, vtuYyqk0Xt.elf, 6226.1.00007ffcbb3ee000.00007ffcbb40f000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm

Stealing of Sensitive Information

Yara detected Gafgyt

Source: Yara match	File source: vtuYyqk0Xt.elf, type: SAMPLE
Source: Yara match	File source: 6226.1.00007f95f0017000.00007f95f0038000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6222.1.00007f95f0017000.00007f95f0038000.r-x.sdmp, type: MEMORY

Remote Access Functionality

Yara detected Gafgyt

Source: Yara match	File source: vtuYyqk0Xt.elf, type: SAMPLE
Source: Yara match	File source: 6226.1.00007f95f0017000.00007f95f0038000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: 6222.1.00007f95f0017000.00007f95f0038000.r-x.sdmp, type: MEMORY

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 Indicator Removal	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Standard Port	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	1 Non-Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	Binary Padding	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	2 Application Layer Protocol	Traffic Duplication	Data Destruction

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
vtuYyqk0Xt.elf	53%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
retardedclassmate.dyn	85.239.33.65	true	false		unknown

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	ASN	ASN Name	Malicious
94.156.248.19	unknown	Bulgaria	34224	NETERRA-ASBG	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
109.202.202.202	qGvnx0j5lX.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	qVWKIiSVVZ.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	W7v6a74sWr.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	YLLohP9ydf.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	xsyGizeAYW.elf	Get hash	malicious	Mirai	Browse
	RsrhTw5KFy.elf	Get hash	malicious	Gafgyt	Browse
	O67YVCzJU1.elf	Get hash	malicious	Gafgyt	Browse
	4l1WmmaR1d.elf	Get hash	malicious	Gafgyt	Browse
	uXfMfsdkvB.elf	Get hash	malicious	Unknown	Browse
	1DotxMNF3J.elf	Get hash	malicious	Mirai	Browse
91.189.91.43	W7v6a74sWr.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	YLLohP9ydf.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	xsyGizeAYW.elf	Get hash	malicious	Mirai	Browse
	RsrhTw5KFy.elf	Get hash	malicious	Gafgyt	Browse
	O67YVCzJU1.elf	Get hash	malicious	Gafgyt	Browse
	4l1WmmaR1d.elf	Get hash	malicious	Gafgyt	Browse
	uXfMfsdkvB.elf	Get hash	malicious	Unknown	Browse
	1DotxMNF3J.elf	Get hash	malicious	Mirai	Browse
	if7G7W6gWn.elf	Get hash	malicious	Okiru	Browse
	DL2E29FTg1.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	qGvnx0j5lX.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	qVWKIiSVVZ.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	W7v6a74sWr.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	YLLohP9ydf.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	xsyGizeAYW.elf	Get hash	malicious	Mirai	Browse
	RsrhTw5KFy.elf	Get hash	malicious	Gafgyt	Browse
	O67YVCzJU1.elf	Get hash	malicious	Gafgyt	Browse
	4l1WmmaR1d.elf	Get hash	malicious	Gafgyt	Browse
	uXfMfsdkvB.elf	Get hash	malicious	Unknown	Browse
	1DotxMNF3J.elf	Get hash	malicious	Mirai	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	qGvnx0j5lX.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	qVWKIiSVVZ.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	W7v6a74sWr.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	mAJ0gF8xM2.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.125.190.26
	YLLohP9ydf.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	xsyGizeAYW.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	RsrhTw5KFy.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	O67YVCzJU1.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	J8jOJ7v2Ia.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	PEpo0zJJNd.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
CANONICAL-ASGB	qGvnx0j5lX.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	qVWKIiSVVZ.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	W7v6a74sWr.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	mAJ0gF8xM2.elf	Get hash	malicious	Gafgyt, Mirai	Browse	185.125.190.26
	YLLohP9ydf.elf	Get hash	malicious	Gafgyt, Mirai	Browse	91.189.91.42
	xsyGizeAYW.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	RsrhTw5KFy.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	O67YVCzJU1.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	J8jOJ7v2Ia.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	PEpo0zJJNd.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
NETERRA-ASBG	93dYAEq6GA.elf	Get hash	malicious	Gafgyt	Browse	94.156.248.18
	ZcOjro0Chh.elf	Get hash	malicious	Mirai	Browse	212.73.131.205
	https://www.huiyuan-sh.com/	Get hash	malicious	Unknown	Browse	87.121.112.42
	https://www.cmmnamijedtovnuf.com/	Get hash	malicious	Unknown	Browse	87.121.112.42
	https://www.daopzzvefkdjrnbe.com/	Get hash	malicious	Unknown	Browse	87.121.112.42
	https://huiyuan-sh.com/	Get hash	malicious	Unknown	Browse	87.121.112.42
	J2NWKU2oJi.exe	Get hash	malicious	Amadey, RHADAMANTHYS	Browse	94.156.10.37
	https://zjxcjld.com/	Get hash	malicious	Unknown	Browse	87.121.112.41
	https://amqxk1.ru.com/sharepoint/msn-xls%20webshare%20document/onedrive/	Get hash	malicious	HTMLPhisher	Browse	87.121.112.7
	https://www.hawksapparels.com/	Get hash	malicious	Unknown	Browse	87.121.112.36
INIT7CH	qGvnx0j5lX.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	qVWKIiSVVZ.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	W7v6a74sWr.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	YLLohP9ydf.elf	Get hash	malicious	Gafgyt, Mirai	Browse	109.202.202.202
	xsyGizeAYW.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	RsrhTw5KFy.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	O67YVCzJU1.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	4l1WmmaR1d.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	uXfMfsdkvB.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	1DotxMNF3J.elf	Get hash	malicious	Mirai	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 LSB executable, ARM, version 1 (ARM), statically linked, stripped
Entropy (8bit):	5.435322749571006
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	vtuYyqk0Xt.elf
File size:	154'272 bytes
MD5:	793be16fef4f582681cbce1dccbb7bef
SHA1:	9ba868063f527b9dd3b2e6ef6a593443a9e12198
SHA256:	fb088cec2214538871e219a8f90f737cbdb9b759d2473d92efe9de084fbc9e30
SHA512:	b66fd52aebd8361f00841e3bfff269e6031035ba798d8ea3cd0076a12281e9d0427e3b3df1331f6801c2ed90cd0feeacefeff138ce90227b7a3e589544c9a281
SSDEEP:	1536:3/JqM3np9GuRCA7CWgsr4nf58CtEf1RAcYcADA1ETrY9e5tlAXOsz8sw1kSHxlpG:PJb362NuKCKfb3AeEPSe5rtF13tJE
TLSH:	9CE32A85FC509F26C6D6227BFB4E428D372A5768D3EE7203D9255F20378A95B0E37242
File Content Preview:	.ELF...a..........(.........4....Y......4. ...(......................................................H..............Q.td..................................-...L."....t..........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, little 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:	0x2
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	153872
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

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	0x1d2a4	0x0	0x6	AX	16
.fini	PROGBITS	0x25354	0x1d354	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x25368	0x1d368	0x3430	0x0	0x2	A	4
.ctors	PROGBITS	0x31000	0x21000	0xc	0x0	0x3	WA	4
.dtors	PROGBITS	0x3100c	0x2100c	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x31020	0x21020	0x48b0	0x0	0x3	WA	32
.bss	NOBITS	0x358d0	0x258d0	0xd544	0x0	0x3	WA	4
.shstrtab	STRTAB	0x0	0x258d0	0x3e	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	0x20798	0x20798	5.9412	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x21000	0x31000	0x31000	0x48d0	0x11e14	0.3732	0x6	RW	0x8000	.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
Apr 27, 2024 01:29:46.437068939 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 27, 2024 01:29:47.486156940 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:29:47.749479055 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:29:47.749550104 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:29:47.749901056 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:29:48.012105942 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:29:48.012156963 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:29:48.275845051 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:29:52.068252087 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 27, 2024 01:29:53.348083973 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 27, 2024 01:30:02.755686045 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:30:03.490756989 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:30:03.753052950 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:30:03.753350019 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:30:03.753427029 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:30:07.174148083 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 27, 2024 01:30:19.049593925 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:30:19.049745083 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:30:19.456481934 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 27, 2024 01:30:23.551928997 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 27, 2024 01:30:34.319875002 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:30:34.320200920 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:30:48.124463081 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 27, 2024 01:30:49.590878963 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:30:49.591048002 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:31:04.854198933 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:31:04.854370117 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:31:20.118496895 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:31:20.118601084 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:31:33.806097984 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:31:34.068905115 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:31:34.068917990 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:31:34.069024086 CEST	60500	5667	192.168.2.23	94.156.248.19
Apr 27, 2024 01:31:49.445269108 CEST	5667	60500	94.156.248.19	192.168.2.23
Apr 27, 2024 01:31:49.445399046 CEST	60500	5667	192.168.2.23	94.156.248.19

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Apr 27, 2024 01:29:47.396186113 CEST	52793	53	192.168.2.23	134.195.4.2
Apr 27, 2024 01:29:47.485773087 CEST	53	52793	134.195.4.2	192.168.2.23

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Apr 27, 2024 01:29:47.396186113 CEST	192.168.2.23	134.195.4.2	0xe520	Standard query (0)	retardedclassmate.dyn	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	Address	Type	Class	DNS over HTTPS
Apr 27, 2024 01:29:47.485773087 CEST	134.195.4.2	192.168.2.23	0xe520	No error (0)	retardedclassmate.dyn	85.239.33.65	A (IP address)	IN (0x0001)	false
Apr 27, 2024 01:29:47.485773087 CEST	134.195.4.2	192.168.2.23	0xe520	No error (0)	retardedclassmate.dyn	94.156.248.19	A (IP address)	IN (0x0001)	false
Apr 27, 2024 01:29:47.485773087 CEST	134.195.4.2	192.168.2.23	0xe520	No error (0)	retardedclassmate.dyn	94.156.248.18	A (IP address)	IN (0x0001)	false
Apr 27, 2024 01:29:47.485773087 CEST	134.195.4.2	192.168.2.23	0xe520	No error (0)	retardedclassmate.dyn	31.220.1.44	A (IP address)	IN (0x0001)	false
Apr 27, 2024 01:29:47.485773087 CEST	134.195.4.2	192.168.2.23	0xe520	No error (0)	retardedclassmate.dyn	94.156.248.20	A (IP address)	IN (0x0001)	false
Apr 27, 2024 01:29:47.485773087 CEST	134.195.4.2	192.168.2.23	0xe520	No error (0)	retardedclassmate.dyn	91.92.254.116	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: vtuYyqk0Xt.elf PID: 6222, Parent PID: 6135

General

Start time (UTC):	23:29:46
Start date (UTC):	26/04/2024
Path:	/tmp/vtuYyqk0Xt.elf
Arguments:	/tmp/vtuYyqk0Xt.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6224, Parent PID: 6222

General

Start time (UTC):	23:29:46
Start date (UTC):	26/04/2024
Path:	/tmp/vtuYyqk0Xt.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6226, Parent PID: 6224

General

Start time (UTC):	23:29:46
Start date (UTC):	26/04/2024
Path:	/tmp/vtuYyqk0Xt.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6228, Parent PID: 6224

General

Start time (UTC):	23:29:46
Start date (UTC):	26/04/2024
Path:	/tmp/vtuYyqk0Xt.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6230, Parent PID: 6224

General

Start time (UTC):	23:29:46
Start date (UTC):	26/04/2024
Path:	/tmp/vtuYyqk0Xt.elf
Arguments:	-
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Description:	Adversaries may delete or modify artifacts generated within systems to remove evidence of their presence or hinder defenses. Various artifacts may be created by an adversary or something that can be attributed to an adversary’s actions. Typically these artifacts are used as defensive indicators related to monitored events, such as strings from downloaded files, logs that are generated from user actions, and other data analyzed by defenders. Location, format, and type of artifact (such as command or login history) are often specific to each platform.
Tactics:	Defense Evasion
Data Sources:	Application Log: Application Log Content, Command: Command Execution, File: File Deletion, File: File Metadata, File: File Modification, Firewall: Firewall Rule Modification, Network Traffic: Network Traffic Content, Process: OS API Execution, Process: Process Creation, Scheduled Job: Scheduled Job Modification, User Account: User Account Authentication, User Account: User Account Deletion, Windows Registry: Windows Registry Key Deletion, Windows Registry: Windows Registry Key Modification
Platforms:	Containers, Google Workspace, Linux, macOS, Network, Office 365, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port pairing that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report vtuYyqk0Xt.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Snort Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: vtuYyqk0Xt.elf PID: 6222, Parent PID: 6135

General

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6224, Parent PID: 6222

General

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6226, Parent PID: 6224

General

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6228, Parent PID: 6224

General

Chronological Activities

Analysis Process: vtuYyqk0Xt.elf PID: 6230, Parent PID: 6224

General

Chronological Activities

Linux Analysis Report
vtuYyqk0Xt.elf