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Linux Analysis Report
arm.elf

Overview

General Information

Sample name:	arm.elf
Analysis ID:	1543494
MD5:	4e5af7ad1a478cf4868db8477b80dc85
SHA1:	c6dae6712d01ea83435dd4bbff518c41401dd00c
SHA256:	1dd69f848467acdc10ff8b1c7ebfdd454d65bb78141f4284c3d808c7c2f5b539
Tags:	elfuser-abuse_ch

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

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:	1543494
Start date and time:	2024-10-28 01:53:08 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 21s
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:	arm.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/arm.elf
PID:	5433
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

arm.elf (PID: 5433, Parent: 5360, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm.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: arm.elf

Virustotal: Detection: 10%

Perma Link

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /tmp/arm.elf (PID: 5433)

Queries kernel information via 'uname':

Jump to behavior

Source: arm.elf, 5433.1.000055d01ae93000.000055d01afc1000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm.elf, 5433.1.00007ffd3d7c6000.00007ffd3d7e7000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm.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/arm.elf
Source: arm.elf, 5433.1.000055d01ae93000.000055d01afc1000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm.elf, 5433.1.00007ffd3d7c6000.00007ffd3d7e7000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-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	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features

Malware Configuration

⊘No configs have been found

Behavior Graph

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Legend:

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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
arm.elf	11%	ReversingLabs	Linux.Trojan.Mirai
arm.elf	11%	Virustotal		Browse

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 contacted IP infos

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

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):	6.0290375180954845
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm.elf
File size:	50'552 bytes
MD5:	4e5af7ad1a478cf4868db8477b80dc85
SHA1:	c6dae6712d01ea83435dd4bbff518c41401dd00c
SHA256:	1dd69f848467acdc10ff8b1c7ebfdd454d65bb78141f4284c3d808c7c2f5b539
SHA512:	85c50386ca0d57191c90d6ba850cef0ec5660496032df8239b3e0abfd0a642c2b75cd61e3b99f8de016e9255c2cec31da0884953d39912edb9e03dad6c163e52
SSDEEP:	1536:ME/uwcLeDevNMZ7QFFe8vCtgvBe1QjvC:x/uw8GevM8FFeKCtgvBeeC
TLSH:	6C331945F9815B12C5C191BFFB2E428C772B575CE1FA73035A28AF613B878660E3B116
File Content Preview:	.ELF...a..........(.........4...p.......4. ...(..............................................P...P..t....&..........Q.td..................................-...L."....+..........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:	50032
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	0xaee8	0x0	0x6	AX	16
.fini	PROGBITS	0x12f98	0xaf98	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x12fac	0xafac	0x10e0	0x0	0x2	A	4
.eh_frame	PROGBITS	0x1508c	0xc08c	0x4	0x0	0x3	WA	4
.ctors	PROGBITS	0x15090	0xc090	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x15098	0xc098	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x150a0	0xc0a0	0x4	0x0	0x3	WA	4
.data	PROGBITS	0x150a4	0xc0a4	0x25c	0x0	0x3	WA	4
.bss	NOBITS	0x15300	0xc300	0x2440	0x0	0x3	WA	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0xc300	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0xc310	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	0xc08c	0xc08c	6.0654	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0xc08c	0x1508c	0x1508c	0x274	0x26b4	3.3974	0x6	RW	0x1000	.eh_frame .ctors .dtors .jcr .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: arm.elf PID: 5433, Parent PID: 5360

General

Start time (UTC):	00:53:57
Start date (UTC):	28/10/2024
Path:	/tmp/arm.elf
Arguments:	/tmp/arm.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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Linux Analysis Report arm.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

System Summary

Malware Analysis System Evasion

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted 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

System Behavior

Analysis Process: arm.elf PID: 5433, Parent PID: 5360

General

Chronological Activities

Linux Analysis Report
arm.elf