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Linux Analysis Report
linux_arm5.elf

Overview

General Information

Sample name:	linux_arm5.elf
Analysis ID:	1561394
MD5:	8af3cc1e6b13a2475c4506589f51bc86
SHA1:	14bccb20a5ee194edd89bb1e6a4c3e8870766cd6
SHA256:	a2727796c71eea796ecb3ab2fed19d29aa2b7a2208d7ce31d3d51f4762ad970a
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Sample has stripped symbol table

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

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1561394
Start date and time:	2024-11-23 10:32:06 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 34s
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:	linux_arm5.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/linux_arm5.elf
PID:	6217
Exit Code:	135
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

linux_arm5.elf (PID: 6217, Parent: 6140, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/linux_arm5.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

Multi AV Scanner detection for submitted file

Source: linux_arm5.elf

ReversingLabs: Detection: 15%

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	TCP traffic detected without corresponding DNS query: 91.189.91.43

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: mal48.linELF@0/0@0/0

Source: /tmp/linux_arm5.elf (PID: 6217)

Queries kernel information via 'uname':

Jump to behavior

Source: linux_arm5.elf, 6217.1.00005607d2c10000.00005607d2d3e000.rw-.sdmp	Binary or memory string: Vrg.qemu.gdb.arm.sys.regs">
Source: linux_arm5.elf, 6217.1.00005607d2c10000.00005607d2d3e000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: linux_arm5.elf, 6217.1.00005607d2c10000.00005607d2d3e000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/arm
Source: linux_arm5.elf, 6217.1.00007ffc7e53a000.00007ffc7e55b000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: linux_arm5.elf, 6217.1.00005607d2c10000.00005607d2d3e000.rw-.sdmp	Binary or memory string: rg.qemu.gdb.arm.sys.regs">
Source: linux_arm5.elf, 6217.1.00007ffc7e53a000.00007ffc7e55b000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/linux_arm5.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/linux_arm5.elf

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	Direct Volume Access	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
linux_arm5.elf	16%	ReversingLabs	Linux.Trojan.Multiverze

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
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
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	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	la.bot.m68k.elf	Get hash	malicious	Unknown	Browse
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm.elf	Get hash	malicious	Unknown	Browse
	la.bot.mipsel.elf	Get hash	malicious	Unknown	Browse
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse
	x86.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse
91.189.91.42	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	la.bot.m68k.elf	Get hash	malicious	Unknown	Browse
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse
	la.bot.arm.elf	Get hash	malicious	Unknown	Browse
	la.bot.mipsel.elf	Get hash	malicious	Unknown	Browse
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse
	x86.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	sh4.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.m68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.mipsel.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	m68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
CANONICAL-ASGB	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.m68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	la.bot.arm.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.mipsel.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	m68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sh4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
INIT7CH	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	la.bot.m68k.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	la.bot.arc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	la.bot.arm.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	la.bot.mipsel.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	la.bot.arm7.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	x86.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	arm6.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	m68k.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	sh4.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, EABI5 version 1 (SYSV), statically linked, too large section header offset 3665096
Entropy (8bit):	5.778870642387687
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	linux_arm5.elf
File size:	1'678'304 bytes
MD5:	8af3cc1e6b13a2475c4506589f51bc86
SHA1:	14bccb20a5ee194edd89bb1e6a4c3e8870766cd6
SHA256:	a2727796c71eea796ecb3ab2fed19d29aa2b7a2208d7ce31d3d51f4762ad970a
SHA512:	ce9e756d952b6e9b175b10f68e07fa1ddcc08eb26a788a3c0b118e30fa79d4357d18a6a498440c2d076a6d61b21c9f701ed58f7c872791cb5bdf097865fd5fb2
SSDEEP:	24576:OmweNQYDJR67dvUqx0phbWbk5v5xWxIzWioiRGv8sVpfezfrLar7EEuEHnc8smoU:QtKY0CdO+kBRI
TLSH:	3C75C5AB78D24686C4E43ABBBD7D81C4329707FEA39F60A99D01CD3537EE5990938710
File Content Preview:	.ELF..............(.........4...........4. ...(.........4...4...4...................................d...d...............................................+...,...,..l!..l!...............M...N...N..L...k..........Q.td...............................e.......

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 - System V
ABI Version:	0
Entry Point Address:	0x7d1d8
Flags:	0x5000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	7
Section Header Offset:	276
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	3

Sections

Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
NULL	0x0	0x0	0x0	0x0	0x0		0
PROGBITS	0x11000	0x1000	0x2a97e4	0x0	0x6	AX	4
PROGBITS	0x2c0000	0x2b0000	0xcecc8	0x0	0x2	A	8
STRTAB	0x0	0x37ecc8	0xa5	0x0	0x0		1
PROGBITS	0x38ed70	0x37ed70	0x17c4	0x0	0x2	A	8
PROGBITS	0x390538	0x380538	0x4a4	0x0	0x2	A	8
PROGBITS	0x3909dc	0x3809dc	0x0	0x0	0x2	A	1
PROGBITS	0x3909e0	0x3809e0	0x146220	0x0	0x2	A	8
PROGBITS	0x4e0000	0x4d0000	0xe0	0x0	0x3	WA	16
PROGBITS	0x4e00e0	0x4d00e0	0x2f050	0x0	0x3	WA	8
PROGBITS	0x50f130	0x4ff130	0x5b88	0x0	0x3	WA	8
NOBITS	0x514cb8	0x504cb8	0x132bc	0x0	0x3	WA	8
NOBITS	0x527f78	0x517f78	0xec34	0x0	0x3	WA	8
NOTE	0x10f9c	0xf9c	0x64	0x0	0x2	A	4

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align
PHDR	0x34	0x10034	0x10034	0xe0	0xe0	2.2129	0x4	R	0x10000
NOTE	0xf9c	0x10f9c	0x10f9c	0x64	0x64	5.4559	0x4	R	0x4
LOAD	0x0	0x10000	0x10000	0x2aa7e4	0x2aa7e4	5.7789	0x5	R E	0x10000
LOAD	0x2b0000	0x2c0000	0x2c0000	0x216c00	0x216c00	0.0000	0x4	R	0x10000
LOAD	0x4d0000	0x4e0000	0x4e0000	0x34cb8	0x56bac	0.0000	0x6	RW	0x10000
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4
LOOS+5041580	0x0	0x0	0x0	0x0	0x0	0.0000	0x2a00		0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Nov 23, 2024 10:32:53.161098003 CET	43928	443	192.168.2.23	91.189.91.42
Nov 23, 2024 10:32:58.792352915 CET	42836	443	192.168.2.23	91.189.91.43
Nov 23, 2024 10:32:59.816265106 CET	42516	80	192.168.2.23	109.202.202.202
Nov 23, 2024 10:33:14.406315088 CET	43928	443	192.168.2.23	91.189.91.42
Nov 23, 2024 10:33:24.644892931 CET	42836	443	192.168.2.23	91.189.91.43
Nov 23, 2024 10:33:30.787975073 CET	42516	80	192.168.2.23	109.202.202.202
Nov 23, 2024 10:33:55.360737085 CET	43928	443	192.168.2.23	91.189.91.42
Nov 23, 2024 10:34:15.837804079 CET	42836	443	192.168.2.23	91.189.91.43

System Behavior

Analysis Process: linux_arm5.elf PID: 6217, Parent PID: 6140

General

Start time (UTC):	09:32:52
Start date (UTC):	23/11/2024
Path:	/tmp/linux_arm5.elf
Arguments:	/tmp/linux_arm5.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

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 linux_arm5.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

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: linux_arm5.elf PID: 6217, Parent PID: 6140

General

Chronological Activities

Linux Analysis Report
linux_arm5.elf