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Linux Analysis Report
arm7.elf

Overview

General Information

Sample name:	arm7.elf
Analysis ID:	1541339
MD5:	95ca2e6d4932ad722403770b70b53ffa
SHA1:	7c8ddaf291a91dd0a7af8682e18c945a29f6a38b
SHA256:	37aeffb8b51678d80905a428e78eabe22f825fdaf2367b9be74247eb04f3ef10
Tags:	elfuser-abuse_ch

Detection

Score:	1
Range:	0 - 100
Whitelisted:	false

Signatures

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:	1541339
Start date and time:	2024-10-24 17:55:07 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 18s
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:	arm7.elf
Detection:	CLEAN
Classification:	clean1.linELF@0/0@0/0

Warnings

VT rate limit hit for: arm7.elf

Runtime Messages

Command:	/tmp/arm7.elf
PID:	5457
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

arm7.elf (PID: 5457, Parent: 5379, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm7.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

There are no malicious signatures, click here to show all signatures.

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: clean1.linELF@0/0@0/0

Source: /tmp/arm7.elf (PID: 5457)

Queries kernel information via 'uname':

Jump to behavior

Source: arm7.elf, 5457.1.000055be430fe000.000055be4322c000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: arm7.elf, 5457.1.000055be430fe000.000055be4322c000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: arm7.elf, 5457.1.00007fffef243000.00007fffef264000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: arm7.elf, 5457.1.00007fffef243000.00007fffef264000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm7.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/arm7.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	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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
arm7.elf	5%	ReversingLabs

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, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.94454145616908
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	arm7.elf
File size:	51'460 bytes
MD5:	95ca2e6d4932ad722403770b70b53ffa
SHA1:	7c8ddaf291a91dd0a7af8682e18c945a29f6a38b
SHA256:	37aeffb8b51678d80905a428e78eabe22f825fdaf2367b9be74247eb04f3ef10
SHA512:	d0ad1d6b4be67f61bebac243dd907843da9e86b4491b1eda5ac564755240addf293a97a683d956bcc2d2ec116fb8aa10985bbfae2fad62e07fcf27dfef6178ec
SSDEEP:	768:EFnW13fOkkgodhK/geilTzi9Sdbm9hlut+p9tmwZ9iY61eg:EFnwOkkgoa/geilviMbHt+DZkY61
TLSH:	68331949F981AF11D4D535BEFE4E128933534B6CE3FE7211AE215B2523CA92B0F7A406
File Content Preview:	.ELF..............(.........4...........4. ...(........p ... B.. B..................................8...8...............8...8...8.......T1..............<...<...<...................Q.td..................................-...L..................@-.,@...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:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8194
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	5
Section Header Offset:	50820
Section Header Size:	40
Number of Section Headers:	16
Header String Table Index:	15

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Link	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0	0
.init	PROGBITS	0x80d4	0xd4	0x10	0x0	0x6	AX	0	4
.text	PROGBITS	0x80f0	0xf0	0xbc00	0x0	0x6	AX	0	16
.fini	PROGBITS	0x13cf0	0xbcf0	0x10	0x0	0x6	AX	0	4
.rodata	PROGBITS	0x13d00	0xbd00	0x508	0x0	0x2	A	0	4
.ARM.extab	PROGBITS	0x14208	0xc208	0x18	0x0	0x2	A	0	4
.ARM.exidx	ARM_EXIDX	0x14220	0xc220	0x118	0x0	0x82	AL	2	4
.eh_frame	PROGBITS	0x1c338	0xc338	0x4	0x0	0x3	WA	0	4
.tbss	NOBITS	0x1c33c	0xc33c	0x8	0x0	0x403	WAT	0	4
.init_array	INIT_ARRAY	0x1c33c	0xc33c	0x4	0x0	0x3	WA	0	4
.fini_array	FINI_ARRAY	0x1c340	0xc340	0x4	0x0	0x3	WA	0	4
.got	PROGBITS	0x1c348	0xc348	0xa8	0x4	0x3	WA	0	4
.data	PROGBITS	0x1c3f0	0xc3f0	0x1f8	0x0	0x3	WA	0	4
.bss	NOBITS	0x1c5e8	0xc5e8	0x2ea4	0x0	0x3	WA	0	4
.ARM.attributes	ARM_ATTRIBUTES	0x0	0xc5e8	0x16	0x0	0x0		0	1
.shstrtab	STRTAB	0x0	0xc5fe	0x83	0x0	0x0		0	1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
EXIDX	0xc220	0x14220	0x14220	0x118	0x118	4.4481	0x4	R	0x4	.ARM.exidx
LOAD	0x0	0x8000	0x8000	0xc338	0xc338	5.9716	0x5	R E	0x8000	.init .text .fini .rodata .ARM.extab .ARM.exidx
LOAD	0xc338	0x1c338	0x1c338	0x2b0	0x3154	3.8910	0x6	RW	0x8000	.eh_frame .tbss .init_array .fini_array .got .data .bss
TLS	0xc33c	0x1c33c	0x1c33c	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

⊘No network behavior found

System Behavior

Analysis Process: arm7.elf PID: 5457, Parent PID: 5379

General

Start time (UTC):	15:55:52
Start date (UTC):	24/10/2024
Path:	/tmp/arm7.elf
Arguments:	/tmp/arm7.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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Warning!

Linux Analysis Report arm7.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

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

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: arm7.elf PID: 5457, Parent PID: 5379

General

Chronological Activities

Linux Analysis Report
arm7.elf