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Linux Analysis Report
miner.elf

Overview

General Information

Sample name:	miner.elf
Analysis ID:	1639135
MD5:	3945ac8a91ba93d600975d0373d205fc
SHA1:	eb4294ff9e11eeb094083c233c16bfc147caea83
SHA256:	6e4f856e7ae434eb919cbc3e6129a1198e9828d50e6ced7957e35f8ad234e247
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

ELF contains segments with high entropy indicating compressed/encrypted content

Executes the "rm" command used to delete files or directories

Sample contains only a LOAD segment without any section mappings

Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1639135
Start date and time:	2025-03-15 03:11:00 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 13s
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:	miner.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@2/0

Runtime Messages

Command:	/tmp/miner.elf
PID:	5502
Exit Code:	135
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

dash New Fork (PID: 5473, Parent: 3632)

rm (PID: 5473, Parent: 3632, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.eeqYwYpdDv /tmp/tmp.kGvLSt9iQg /tmp/tmp.E8gBsngJwL

dash New Fork (PID: 5474, Parent: 3632)

rm (PID: 5474, Parent: 3632, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.eeqYwYpdDv /tmp/tmp.kGvLSt9iQg /tmp/tmp.E8gBsngJwL

miner.elf (PID: 5502, Parent: 5403, MD5: 3945ac8a91ba93d600975d0373d205fc) Arguments: /tmp/miner.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: miner.elf	Virustotal: Detection: 16%			Perma Link
Source: miner.elf	ReversingLabs: Detection: 19%

Source: global traffic

TCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: unknown

Network traffic detected: HTTP traffic on port 46540 -> 443

Source: LOAD without section mappings

Program segment: 0x400000

Source: classification engine

Classification label: mal48.linELF@0/0@2/0

Source: /usr/bin/dash (PID: 5473)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.eeqYwYpdDv /tmp/tmp.kGvLSt9iQg /tmp/tmp.E8gBsngJwL			Jump to behavior
Source: /usr/bin/dash (PID: 5474)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.eeqYwYpdDv /tmp/tmp.kGvLSt9iQg /tmp/tmp.E8gBsngJwL			Jump to behavior

Source: miner.elf

Submission file: segment LOAD with 7.9996 entropy (max. 8.0)

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	1 Obfuscated Files or Information	OS Credential Dumping	System Service 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	1 File Deletion	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

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

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
miner.elf	17%	Virustotal		Browse
miner.elf	19%	ReversingLabs	Linux.Trojan.Multiverze

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	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
185.125.190.26	unknown	United Kingdom		41231	CANONICAL-ASGB	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
185.125.190.26	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	main_arm.elf	Get hash	malicious	Mirai	Browse
	main_arm7.elf	Get hash	malicious	Mirai	Browse
	main_mpsl.elf	Get hash	malicious	Mirai	Browse
	KKveTTgaAAsecNNaaaa.arc.elf	Get hash	malicious	Unknown	Browse
	gigab.ppc.elf	Get hash	malicious	Gafgyt	Browse
	boatnet.sh4.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	.i.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	vejfa5.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	drea4.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	efea6.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	vjwe68k.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	weje64.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	hgfs.arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	hgfs.mpsl.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	hgfs.x86.elf	Get hash	malicious	Unknown	Browse	162.213.35.25

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	efefa7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	drea4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sync.arm6.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	vjwe68k.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	weje64.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	hgfs.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	hgfs.arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	185.125.190.26

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, no section header
Entropy (8bit):	7.999610904482316
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	miner.elf
File size:	528'267 bytes
MD5:	3945ac8a91ba93d600975d0373d205fc
SHA1:	eb4294ff9e11eeb094083c233c16bfc147caea83
SHA256:	6e4f856e7ae434eb919cbc3e6129a1198e9828d50e6ced7957e35f8ad234e247
SHA512:	c28a9b0afb356c3e5613ea7f1577d9d6fc7b0fa108928c78880515754a0c337309368b29c379f1c4c27b4d42e975effbcf611c8360a68d429d4320be7fbf62c4
SSDEEP:	12288:PQesbwhx7kOQ4x1QJxhEol1X+QbchK0tvDZxMXQn:PvswhZT3/QJLfl1X+Q47tv7Tn
TLSH:	F1B4234D6576A4B7D6386F7122E84882948E28659B3C4F056DF8D428FEC1E42B3372DF
File Content Preview:	.ELF..............>.......[.....@...................@.8...@.......................@.......@....................... .............`.......`.......`......................... .....)]..UPX!L.........K...K.X...k..........?.E.h=.......N......e...U.....bo.G...y..

Static ELF Info

ELF header
Class:	ELF64
Data:	2's complement, little endian
Version:	1 (current)
Machine:	Advanced Micro Devices X86-64
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - Linux
ABI Version:	0
Entry Point Address:	0x5bd090
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	2
Section Header Offset:	0
Section Header Size:	64
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	Prog Interpreter	Section Mappings
LOAD	0x0	0x400000	0x400000	0x1be1cd	0x1be1cd	7.9996	0x5	R E	0x200000
LOAD	0xcfb60	0xacfb60	0xacfb60	0x0	0x0	0.0000	0x6	RW	0x200000

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 15, 2025 03:11:48.895888090 CET	46540	443	192.168.2.14	185.125.190.26
Mar 15, 2025 03:12:20.638751984 CET	46540	443	192.168.2.14	185.125.190.26

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 15, 2025 03:11:38.885708094 CET	39982	53	192.168.2.14	8.8.8.8
Mar 15, 2025 03:11:38.885708094 CET	38971	53	192.168.2.14	8.8.8.8
Mar 15, 2025 03:11:38.891797066 CET	53	38971	8.8.8.8	192.168.2.14
Mar 15, 2025 03:11:38.891885996 CET	53	39982	8.8.8.8	192.168.2.14

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 15, 2025 03:11:38.885708094 CET	192.168.2.14	8.8.8.8	0x5e55	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false
Mar 15, 2025 03:11:38.885708094 CET	192.168.2.14	8.8.8.8	0x69b1	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Mar 15, 2025 03:11:38.891797066 CET	8.8.8.8	192.168.2.14	0x69b1	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Mar 15, 2025 03:11:38.891797066 CET	8.8.8.8	192.168.2.14	0x69b1	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

System Behavior

Analysis Process: dash PID: 5473, Parent PID: 3632

General

Start time (UTC):	02:11:32
Start date (UTC):	15/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 5473, Parent PID: 3632

General

Start time (UTC):	02:11:32
Start date (UTC):	15/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.eeqYwYpdDv /tmp/tmp.kGvLSt9iQg /tmp/tmp.E8gBsngJwL
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: dash PID: 5474, Parent PID: 3632

General

Start time (UTC):	02:11:32
Start date (UTC):	15/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Chronological Activities

Analysis Process: rm PID: 5474, Parent PID: 3632

General

Start time (UTC):	02:11:32
Start date (UTC):	15/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.eeqYwYpdDv /tmp/tmp.kGvLSt9iQg /tmp/tmp.E8gBsngJwL
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Chronological Activities

Analysis Process: miner.elf PID: 5502, Parent PID: 5403

General

Start time (UTC):	02:11:37
Start date (UTC):	15/03/2025
Path:	/tmp/miner.elf
Arguments:	/tmp/miner.elf
File size:	528267 bytes
MD5 hash:	3945ac8a91ba93d600975d0373d205fc

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 delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, 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 use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, 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

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Warning!

Linux Analysis Report miner.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

Persistence and Installation Behavior

Hooking and other Techniques for Hiding and Protection

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

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

UDP Packets

DNS Queries

DNS Answers

System Behavior

Analysis Process: dash PID: 5473, Parent PID: 3632

General

Chronological Activities

Analysis Process: rm PID: 5473, Parent PID: 3632

General

Chronological Activities

Analysis Process: dash PID: 5474, Parent PID: 3632

General

Chronological Activities

Analysis Process: rm PID: 5474, Parent PID: 3632

General

Chronological Activities

Analysis Process: miner.elf PID: 5502, Parent PID: 5403

General

Linux Analysis Report
miner.elf