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Linux Analysis Report
X0ckMzxoy9.elf

Overview

General Information

Sample name:	X0ckMzxoy9.elf renamed because original name is a hash value
Original sample name:	98ddb7e9db8f56c068e8fc53327dde07.elf
Analysis ID:	1430191
MD5:	98ddb7e9db8f56c068e8fc53327dde07
SHA1:	2fe467cef8fb1541adc5655da2d7bc2df52c08e8
SHA256:	08edef0c2d04fcb0a6e8977c80c8f5d1820f5eaf69928da3c5e828111ba9e386
Tags:	32armelfgafgyt
Infos:

Detection

Score:	52
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample is packed with UPX

ELF contains segments with high entropy indicating compressed/encrypted content

Sample contains only a LOAD segment without any section mappings

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.

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

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

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:	1430191
Start date and time:	2024-04-23 09:35:10 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 46s
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:	X0ckMzxoy9.elf renamed because original name is a hash value
Original Sample Name:	98ddb7e9db8f56c068e8fc53327dde07.elf
Detection:	MAL
Classification:	mal52.evad.linELF@0/0@0/0

Warnings

VT rate limit hit for: X0ckMzxoy9.elf

Runtime Messages

Command:	/tmp/X0ckMzxoy9.elf
PID:	6240
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

X0ckMzxoy9.elf (PID: 6240, Parent: 6163, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/X0ckMzxoy9.elf

cleanup

Yara Signatures

⊘No yara matches

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: X0ckMzxoy9.elf

ReversingLabs: Detection: 28%

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: X0ckMzxoy9.elf

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

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

Source: LOAD without section mappings

Program segment: 0x8000

Source: classification engine

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

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: X0ckMzxoy9.elf

Submission file: segment LOAD with 7.9728 entropy (max. 8.0)

Source: /tmp/X0ckMzxoy9.elf (PID: 6240)

Queries kernel information via 'uname':

Jump to behavior

Source: X0ckMzxoy9.elf, 6240.1.000056487a611000.000056487a73f000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: X0ckMzxoy9.elf, 6240.1.00007ffc0315b000.00007ffc0317c000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: X0ckMzxoy9.elf, 6240.1.000056487a611000.000056487a73f000.rw-.sdmp	Binary or memory string: bzHV!/etc/qemu-binfmt/arm
Source: X0ckMzxoy9.elf, 6240.1.00007ffc0315b000.00007ffc0317c000.rw-.sdmp	Binary or memory string: gx86_64/usr/bin/qemu-arm/tmp/X0ckMzxoy9.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/X0ckMzxoy9.elf
Source: X0ckMzxoy9.elf, 6240.1.00007ffc0315b000.00007ffc0317c000.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	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
X0ckMzxoy9.elf	29%	ReversingLabs	Linux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	X0ckMzxoy9.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
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	SecuriteInfo.com.Linux.Siggen.7232.1376.786.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.7251.3492.11320.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.26640.11404.elf	Get hash	malicious	Mirai	Browse
	NLgD8SSCOD.elf	Get hash	malicious	Gafgyt	Browse
	.Sarm7.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
91.189.91.43	SecuriteInfo.com.Linux.Siggen.7232.1376.786.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.7251.3492.11320.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Linux.Siggen.9999.26640.11404.elf	Get hash	malicious	Mirai	Browse
	NLgD8SSCOD.elf	Get hash	malicious	Gafgyt	Browse
	.Sarm7.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	oahFOiuDO1.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	SecuriteInfo.com.Linux.Siggen.7232.1376.786.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.7251.3492.11320.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse
	SecuriteInfo.com.Linux.Siggen.9999.26640.11404.elf	Get hash	malicious	Mirai	Browse
	NLgD8SSCOD.elf	Get hash	malicious	Gafgyt	Browse
	.Sarm7.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	SecuriteInfo.com.Linux.Siggen.7232.1376.786.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Mirai.8362.8829.19078.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	SecuriteInfo.com.Linux.Siggen.7228.11695.14684.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	SecuriteInfo.com.Linux.Siggen.7251.3492.11320.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Siggen.9999.26640.11404.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	NLgD8SSCOD.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	jdsfl.arm7.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
CANONICAL-ASGB	SecuriteInfo.com.Linux.Siggen.7232.1376.786.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Mirai.8362.8829.19078.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	SecuriteInfo.com.Linux.Siggen.7228.11695.14684.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	SecuriteInfo.com.Linux.Siggen.7251.3492.11320.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	SecuriteInfo.com.Linux.Siggen.9999.26640.11404.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	NLgD8SSCOD.elf	Get hash	malicious	Gafgyt	Browse	91.189.91.42
	jdsfl.arm7.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
INIT7CH	SecuriteInfo.com.Linux.Siggen.7232.1376.786.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	SecuriteInfo.com.Linux.Siggen.7251.3492.11320.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	SecuriteInfo.com.Linux.DownLoader.533.23350.4113.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	SecuriteInfo.com.Linux.Siggen.9999.7014.17279.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	SecuriteInfo.com.Linux.DownLoader.523.26836.26051.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	SecuriteInfo.com.Linux.Siggen.9999.26640.11404.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	NLgD8SSCOD.elf	Get hash	malicious	Gafgyt	Browse	109.202.202.202
	.Sarm7.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.983846007160004
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	X0ckMzxoy9.elf
File size:	61'888 bytes
MD5:	98ddb7e9db8f56c068e8fc53327dde07
SHA1:	2fe467cef8fb1541adc5655da2d7bc2df52c08e8
SHA256:	08edef0c2d04fcb0a6e8977c80c8f5d1820f5eaf69928da3c5e828111ba9e386
SHA512:	e651be09feb2119e3811abfd8d80bd41d42dd32f89622815f1eaa60162ffd518b4453fed908593417936da2e545e426db791683a05ef3f4f01333bf824a929a1
SSDEEP:	1536:cMHgkSXcB7Zg9ATfCqbHQGRreuh0zS//IU1QFU2q6gGEZ2RjaoHt6S:cMlSXSZvTqefUuSqQ5oGEZ2Fa+F
TLSH:	FF530271FE60073173D3AD39F906B4FA429817B994967A17729C56B836D0807F3CA00B
File Content Preview:	.ELF..............(.........4...........4. ...(.....................................................................Q.td............................x.?.UPX!....................l..........?.E.h;....#..$...o..........ML.......w.g.N......,..L...)5.[3.B.7~Rf2

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:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x11a04
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

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
LOAD	0x0	0x8000	0x8000	0xac07	0xac07	7.9728	0x5	R E	0x8000
LOAD	0x0	0x18000	0x18000	0x0	0xb5ec	0.0000	0x6	RW	0x8000
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 23, 2024 09:35:58.014734983 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 23, 2024 09:36:03.389981031 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 23, 2024 09:36:04.669944048 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 23, 2024 09:36:17.980142117 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 23, 2024 09:36:30.266241074 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 23, 2024 09:36:34.361754894 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 23, 2024 09:36:58.934263945 CEST	43928	443	192.168.2.23	91.189.91.42

System Behavior

Analysis Process: X0ckMzxoy9.elf PID: 6240, Parent PID: 6163

General

Start time (UTC):	07:35:56
Start date (UTC):	23/04/2024
Path:	/tmp/X0ckMzxoy9.elf
Arguments:	/tmp/X0ckMzxoy9.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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

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

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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report X0ckMzxoy9.elf

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Snort Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

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

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

System Behavior

Analysis Process: X0ckMzxoy9.elf PID: 6240, Parent PID: 6163

General

Chronological Activities

Linux Analysis Report
X0ckMzxoy9.elf