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Linux Analysis Report
arm4.elf

Overview

General Information

Sample name:	arm4.elf
Analysis ID:	1583612
MD5:	1827858bd9e1d07d907314413f686773
SHA1:	88f7cf52750daf05b432e66415d71ba8f48ff2ca
SHA256:	5cd25892f0b330577ff4b00c2dd75a0787ddc7b7b97999c648f95c806a6d2fcf
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Sample listens on a socket

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1583612
Start date and time:	2025-01-03 08:00:18 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 31s
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:	arm4.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/arm4.elf
PID:	5541
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

arm4.elf (PID: 5541, Parent: 5459, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm4.elf

arm4.elf New Fork (PID: 5543, Parent: 5541)

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: arm4.elf	ReversingLabs: Detection: 13%
Source: arm4.elf	Virustotal: Detection: 20%			Perma Link

Source: global traffic

TCP traffic: 192.168.2.14:37112 -> 154.216.19.231:25596

Source: /tmp/arm4.elf (PID: 5541)

Socket: 127.0.0.1:2342

Jump to behavior

Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231
Source: unknown	TCP traffic detected without corresponding DNS query: 154.216.19.231

Source: arm4.elf, 5541.1.00007f8f1c029000.00007f8f1c02c000.rw-.sdmp

String found in binary or memory: http://hailcocks.ru/wget.sh;

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal48.linELF@0/0@0/0

Source: /tmp/arm4.elf (PID: 5541)

Queries kernel information via 'uname':

Jump to behavior

Source: arm4.elf, 5541.1.00007ffe5df07000.00007ffe5df28000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm4.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/arm4.elf
Source: arm4.elf, 5541.1.0000560269024000.0000560269179000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm4.elf, 5541.1.00007ffe5df07000.00007ffe5df28000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm4.elf, 5541.1.0000560269024000.0000560269179000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/arm

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 Non-Standard Port	Exfiltration Over Other Network Medium	Abuse Accessibility Features

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
arm4.elf	13%	ReversingLabs	Linux.Backdoor.Mirai
arm4.elf	21%	Virustotal		Browse

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://hailcocks.ru/wget.sh;	arm4.elf, 5541.1.00007f8f1c029000.00007f8f1c02c000.rw-.sdmp	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	Flag	ASN	ASN Name	Malicious
154.216.19.231	unknown	Seychelles		135357	SKHT-ASShenzhenKatherineHengTechnologyInformationCo	false

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
SKHT-ASShenzhenKatherineHengTechnologyInformationCo	RBI-MontaryFramework.js	Get hash	malicious	WSHRAT	Browse	154.216.18.17
	Hilix.ppc.elf	Get hash	malicious	Mirai	Browse	156.241.11.76
	Hilix.mpsl.elf	Get hash	malicious	Mirai	Browse	45.207.239.71
	2.exe	Get hash	malicious	XWorm	Browse	45.207.215.58
	1.exe	Get hash	malicious	XWorm	Browse	45.207.215.58
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse	154.216.17.216
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	154.216.17.216
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse	154.216.17.216
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse	154.216.17.216
	boatnet.mips.elf	Get hash	malicious	Mirai	Browse	154.216.17.216

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):	6.065635678452617
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm4.elf
File size:	70'940 bytes
MD5:	1827858bd9e1d07d907314413f686773
SHA1:	88f7cf52750daf05b432e66415d71ba8f48ff2ca
SHA256:	5cd25892f0b330577ff4b00c2dd75a0787ddc7b7b97999c648f95c806a6d2fcf
SHA512:	b9c88177da74b7e0eedfe060db835fdb964436ad48e89f957d115581715ec6007ee6fa4b922d28fcbf0384d184f6c8aee20d4b67f497cc695ebc7c03f641699f
SSDEEP:	1536:mlGUthh13Z5CNRatcT9y++vDQdZ7stbFLwbwLDYXQmvv:ml7thvJ5wRatcZylv0XAtbFLhLDYvv
TLSH:	E5632A95BC815E23C5D552BBFBAE418C772713ACE2EA32039925AF6237C785B0D37502
File Content Preview:	.ELF...a..........(.........4...........4. ...(.....................`...`................................'..........Q.td..................................-...L."...w=..........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:	0x202
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	70420
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

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	0xf614	0x0	0x6	AX	16
.fini	PROGBITS	0x176c4	0xf6c4	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x176d8	0xf6d8	0x1388	0x0	0x2	A	4
.eh_frame	PROGBITS	0x19000	0x11000	0x4	0x0	0x3	WA	4
.ctors	PROGBITS	0x19004	0x11004	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x1900c	0x1100c	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x19014	0x11014	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x19018	0x11018	0x28c	0x0	0x3	WA	4
.bss	NOBITS	0x192a4	0x112a4	0x2508	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x112a4	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x112b4	0x5d	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	0x10a60	0x10a60	6.1605	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x11000	0x19000	0x19000	0x2a4	0x27ac	3.5838	0x6	RW	0x1000	.eh_frame .ctors .dtors .jcr .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
Jan 3, 2025 08:01:16.387175083 CET	37112	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:16.392118931 CET	25596	37112	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:16.392167091 CET	37112	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:16.392362118 CET	37112	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:16.397099972 CET	25596	37112	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:16.397135019 CET	37112	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:16.401910067 CET	25596	37112	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:26.402451992 CET	37112	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:26.407483101 CET	25596	37112	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:37.745134115 CET	25596	37112	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:37.745786905 CET	37112	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:37.750643969 CET	25596	37112	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:42.748400927 CET	37114	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:42.753262043 CET	25596	37114	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:42.753392935 CET	37114	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:42.753463984 CET	37114	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:42.758270979 CET	25596	37114	154.216.19.231	192.168.2.14
Jan 3, 2025 08:01:42.758322001 CET	37114	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:01:42.763187885 CET	25596	37114	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:04.141787052 CET	25596	37114	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:04.142148972 CET	37114	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:04.146928072 CET	25596	37114	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:09.143347025 CET	37116	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:09.148216009 CET	25596	37116	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:09.148266077 CET	37116	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:09.148279905 CET	37116	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:09.153012037 CET	25596	37116	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:09.153070927 CET	37116	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:09.157860994 CET	25596	37116	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:30.514466047 CET	25596	37116	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:30.514678955 CET	37116	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:30.519541979 CET	25596	37116	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:35.516483068 CET	37118	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:35.522088051 CET	25596	37118	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:35.522181034 CET	37118	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:35.522247076 CET	37118	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:35.527628899 CET	25596	37118	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:35.527702093 CET	37118	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:35.532455921 CET	25596	37118	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:56.937720060 CET	25596	37118	154.216.19.231	192.168.2.14
Jan 3, 2025 08:02:56.937993050 CET	37118	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:02:56.942786932 CET	25596	37118	154.216.19.231	192.168.2.14
Jan 3, 2025 08:03:01.939975977 CET	37120	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:03:01.945713997 CET	25596	37120	154.216.19.231	192.168.2.14
Jan 3, 2025 08:03:01.945796013 CET	37120	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:03:01.945854902 CET	37120	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:03:01.951235056 CET	25596	37120	154.216.19.231	192.168.2.14
Jan 3, 2025 08:03:01.951304913 CET	37120	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:03:01.957232952 CET	25596	37120	154.216.19.231	192.168.2.14
Jan 3, 2025 08:03:11.955624104 CET	37120	25596	192.168.2.14	154.216.19.231
Jan 3, 2025 08:03:11.960457087 CET	25596	37120	154.216.19.231	192.168.2.14

System Behavior

Analysis Process: arm4.elf PID: 5541, Parent PID: 5459

General

Start time (UTC):	07:01:15
Start date (UTC):	03/01/2025
Path:	/tmp/arm4.elf
Arguments:	/tmp/arm4.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

Chronological Activities

Analysis Process: arm4.elf PID: 5543, Parent PID: 5541

General

Start time (UTC):	07:01:15
Start date (UTC):	03/01/2025
Path:	/tmp/arm4.elf
Arguments:	-
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 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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report arm4.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

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: arm4.elf PID: 5541, Parent PID: 5459

General

Chronological Activities

Analysis Process: arm4.elf PID: 5543, Parent PID: 5541

General

Chronological Activities

Linux Analysis Report
arm4.elf