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Linux Analysis Report
miner.elf

Overview

General Information

Sample name:	miner.elf
Analysis ID:	1644966
MD5:	b5512af1ade9c87ad272287662afb507
SHA1:	5facfbbe8b898e18556327c31661399a00173285
SHA256:	4db19c95c0332d641d14dbbdc8dc852c3951fe0444eb5692fcb0f9fe43e8dc8d
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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1644966
Start date and time:	2025-03-21 08:33:14 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 32s
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@0/0

Runtime Messages

Command:	/tmp/miner.elf
PID:	6230
Exit Code:	135
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

miner.elf (PID: 6230, Parent: 6149, MD5: b5512af1ade9c87ad272287662afb507) Arguments: /tmp/miner.elf

dash New Fork (PID: 6306, Parent: 4331)

rm (PID: 6306, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.H7uOhODEIP /tmp/tmp.UQX54Rh7uQ /tmp/tmp.MxUduR4y4g

dash New Fork (PID: 6307, Parent: 4331)

rm (PID: 6307, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.H7uOhODEIP /tmp/tmp.UQX54Rh7uQ /tmp/tmp.MxUduR4y4g

cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Persistence and Installation Behavior
• Hooking and other Techniques for Hiding and Protection

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: miner.elf

ReversingLabs: Detection: 19%

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: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
Source: unknown	TCP traffic detected without corresponding DNS query: 34.249.145.219
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: 34.249.145.219

Source: unknown	Network traffic detected: HTTP traffic on port 39246 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 39246
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

Source: LOAD without section mappings

Program segment: 0x400000

Source: classification engine

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

Source: /usr/bin/dash (PID: 6306)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.H7uOhODEIP /tmp/tmp.UQX54Rh7uQ /tmp/tmp.MxUduR4y4g			Jump to behavior
Source: /usr/bin/dash (PID: 6307)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.H7uOhODEIP /tmp/tmp.UQX54Rh7uQ /tmp/tmp.MxUduR4y4g			Jump to behavior

Source: miner.elf

Submission file: segment LOAD with 7.9999 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 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
miner.elf	19%	ReversingLabs	Linux.Trojan.Multiverze

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

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
34.249.145.219	unknown	United States	16509	AMAZON-02US	false
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
34.249.145.219	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	arm.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	linux_mipsel.elf	Get hash	malicious	Chaos	Browse
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	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sshd.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse

Domains

⊘No context

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
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
CANONICAL-ASGB	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
INIT7CH	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	sshd.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
AMAZON-02US	na.elf	Get hash	malicious	Prometei	Browse	52.212.150.54
	na.elf	Get hash	malicious	Prometei	Browse	54.171.230.55
	na.elf	Get hash	malicious	Prometei	Browse	52.212.150.54
	ACHStub_XNZSCHPTIF.svg	Get hash	malicious	HTMLPhisher	Browse	18.238.55.92
	na.elf	Get hash	malicious	Prometei	Browse	52.212.150.54
	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	na.elf	Get hash	malicious	Prometei	Browse	54.255.164.76
	na.elf	Get hash	malicious	Prometei	Browse	34.249.145.219
	https://aniwatch.lv	Get hash	malicious	Unknown	Browse	52.219.95.25

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):	7.999888564151327
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	miner.elf
File size:	1'761'963 bytes
MD5:	b5512af1ade9c87ad272287662afb507
SHA1:	5facfbbe8b898e18556327c31661399a00173285
SHA256:	4db19c95c0332d641d14dbbdc8dc852c3951fe0444eb5692fcb0f9fe43e8dc8d
SHA512:	5bf2e3cd2e8ec6ceb6794f1a839ad43dad5952a84eddfa8e18b1cd357ab9905a5eac8d705d8aec651da39b05fc915d424b16992ebde9cc18f809e3a55bcc5445
SSDEEP:	49152:njEflQ/573nydbeONLwFCRTrgcSzNpZWPU6u:jEflQRTydb/ZwGrwzNpCu
TLSH:	738533E651F634FAE47416F01DDDD193F69F39A8CE0C590D8498C828DAE1B19D32A8CE
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	7.9999	0x5	R E	0x200000
LOAD	0xcfb60	0xacfb60	0xacfb60	0x0	0x0	0.0000	0x6	RW	0x200000

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 11
• 443 (HTTPS)
• 80 (HTTP)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 21, 2025 08:34:00.070209980 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 08:34:05.701605082 CET	42836	443	192.168.2.23	91.189.91.43
Mar 21, 2025 08:34:07.237406015 CET	42516	80	192.168.2.23	109.202.202.202
Mar 21, 2025 08:34:21.086175919 CET	39246	443	192.168.2.23	34.249.145.219
Mar 21, 2025 08:34:21.086222887 CET	443	39246	34.249.145.219	192.168.2.23
Mar 21, 2025 08:34:21.086437941 CET	39246	443	192.168.2.23	34.249.145.219
Mar 21, 2025 08:34:21.086687088 CET	39246	443	192.168.2.23	34.249.145.219
Mar 21, 2025 08:34:21.086699963 CET	443	39246	34.249.145.219	192.168.2.23
Mar 21, 2025 08:34:21.827399015 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 08:34:32.066082954 CET	42836	443	192.168.2.23	91.189.91.43
Mar 21, 2025 08:34:38.209182978 CET	42516	80	192.168.2.23	109.202.202.202
Mar 21, 2025 08:35:02.781919956 CET	43928	443	192.168.2.23	91.189.91.42
Mar 21, 2025 08:35:21.078619003 CET	39246	443	192.168.2.23	34.249.145.219
Mar 21, 2025 08:35:21.120331049 CET	443	39246	34.249.145.219	192.168.2.23
Mar 21, 2025 08:36:02.964445114 CET	443	39246	34.249.145.219	192.168.2.23

System Behavior

Analysis Process: miner.elf PID: 6230, Parent PID: 6149

General

Start time (UTC):	07:33:59
Start date (UTC):	21/03/2025
Path:	/tmp/miner.elf
Arguments:	/tmp/miner.elf
File size:	1761963 bytes
MD5 hash:	b5512af1ade9c87ad272287662afb507

Analysis Process: dash PID: 6306, Parent PID: 4331

General

Start time (UTC):	07:35:20
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6306, Parent PID: 4331

General

Start time (UTC):	07:35:20
Start date (UTC):	21/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.H7uOhODEIP /tmp/tmp.UQX54Rh7uQ /tmp/tmp.MxUduR4y4g
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6307, Parent PID: 4331

General

Start time (UTC):	07:35:20
Start date (UTC):	21/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6307, Parent PID: 4331

General

Start time (UTC):	07:35:20
Start date (UTC):	21/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.H7uOhODEIP /tmp/tmp.UQX54Rh7uQ /tmp/tmp.MxUduR4y4g
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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 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 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

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

System Behavior

Analysis Process: miner.elf PID: 6230, Parent PID: 6149

General

Analysis Process: dash PID: 6306, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6306, Parent PID: 4331

General

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6307, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6307, Parent PID: 4331

General

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Linux Analysis Report
miner.elf