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Linux Analysis Report
nn.elf

Overview

General Information

Sample name:	nn.elf
Analysis ID:	1583482
MD5:	2eddd23f0b126d19ac930e63ed44912f
SHA1:	293fd2c05146d16d725e1b11f4fd6ca38efd3260
SHA256:	7ac6709d8b957f328d1b3ae10f382955dca1eca094f32945f825407e50b7e875
Tags:	elfuser-abuse_ch
Infos:
Errors No process behavior to analyse as no analysis process or sample was found

Detection

Nanominer, Xmrig

Score:	76
Range:	0 - 100
Whitelisted:	false

Signatures

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Nanominer

Yara detected Xmrig cryptocurrency miner

Found strings related to Crypto-Mining

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

Yara signature match

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1583482
Start date and time:	2025-01-02 20:31:05 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 5m 0s
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:	nn.elf
Detection:	MAL
Classification:	mal76.mine.linELF@0/0@0/0

Errors

No process behavior to analyse as no analysis process or sample was found

Runtime Messages

Command:	/tmp/nn.elf
PID:	6234
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
XMRIG		No Attribution	https://www.aquasec.com/blog/container-security-tnt-container-attack/ https://www.aquasec.com/blog/pg_mem-a-malware-hidden-in-the-postgres-processes/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.xmrig

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
nn.elf	JoeSecurity_Xmrig	Yara detected Xmrig cryptocurrency miner	Joe Security
nn.elf	JoeSecurity_Nanominer	Yara detected Nanominer	Joe Security
nn.elf	Linux_Cryptominer_Generic_e0cca9dc	unknown	unknown	0x1dd87e:$a: 54 24 40 48 8D 94 24 C0 00 00 00 F3 41 0F 6F 01 48 89 7C 24 50 48 89 74

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: nn.elf

ReversingLabs: Detection: 15%

Bitcoin Miner

Yara detected Nanominer

Source: Yara match

File source: nn.elf, type: SAMPLE

Yara detected Xmrig cryptocurrency miner

Source: Yara match

File source: nn.elf, type: SAMPLE

Found strings related to Crypto-Mining

Source: nn.elf

String found in binary or memory: St22_Weak_result_type_implIM7IClientFvRKSt7variantIJ12EthashResult13StratumResult17CryptonightResult15VerusHashResultEERKS1_IJ10EthashTask12StratumInput16CryptonightInput14VerusHashInputEESt10shared_ptrI6DeviceEEE

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

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: 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: 91.189.91.43

Source: nn.elf	String found in binary or memory: https://api.github.com/repos/nanopool/nanominer/releases/latestmalformed
Source: nn.elf	String found in binary or memory: https://api.nanopool.org/v1/invalid
Source: nn.elf	String found in binary or memory: https://blockscout.com/etc/mainnet/api?module=block&action=eth_block_numbertls:
Source: nn.elf	String found in binary or memory: https://gcc.gnu.org/bugs

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

System Summary

Malicious sample detected (through community Yara rule)

Source: nn.elf, type: SAMPLE

Matched rule: Linux_Cryptominer_Generic_e0cca9dc Author: unknown

Source: nn.elf, type: SAMPLE

Matched rule: Linux_Cryptominer_Generic_e0cca9dc reference_sample = 59a1d8aa677739f2edbb8bd34f566b31f19d729b0a115fef2eac8ab1d1acc383, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Cryptominer.Generic, fingerprint = e7bc17ba356774ed10e65c95a8db3b09d3b9be72703e6daa9b601ea820481db7, id = e0cca9dc-0f3e-42d8-bb43-0625f4f9bfe1, last_modified = 2022-01-26

Source: nn.elf

Binary or memory string: V.SlN75?'j

Source: classification engine

Classification label: mal76.mine.linELF@0/0@0/0

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	Direct Volume Access	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	Rootkit	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
nn.elf	16%	ReversingLabs	Win32.Coinminer.XMRig

Name	Source	Malicious	Reputation
https://api.nanopool.org/v1/invalid	nn.elf	false	unknown
https://blockscout.com/etc/mainnet/api?module=block&action=eth_block_numbertls:	nn.elf	false	high
https://api.github.com/repos/nanopool/nanominer/releases/latestmalformed	nn.elf	false	high
https://gcc.gnu.org/bugs	nn.elf	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	ASN	ASN Name	Malicious
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
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	i.elf	Get hash	malicious	Unknown	Browse
	Aqua.arm7.elf	Get hash	malicious	Mirai	Browse
	ZohoAssistURS	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	file-grey.elf	Get hash	malicious	Unknown	Browse
	Aqua.mips.elf	Get hash	malicious	Unknown	Browse
	Aqua.mpsl.elf	Get hash	malicious	Unknown	Browse
	DEMONS.mips.elf	Get hash	malicious	Unknown	Browse
	i.elf	Get hash	malicious	Unknown	Browse
	i.elf	Get hash	malicious	Unknown	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	ZohoAssistURS	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	file-grey.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	DEMONS.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	DEMONS.arm5.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	DEMONS.arm7.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
CANONICAL-ASGB	i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	ZohoAssistURS	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	file-grey.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	Aqua.mpsl.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	DEMONS.mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	DEMONS.arm5.elf	Get hash	malicious	Unknown	Browse	185.125.190.26
	DEMONS.arm7.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
INIT7CH	i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	Aqua.arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	ZohoAssistURS	Get hash	malicious	Unknown	Browse	109.202.202.202
	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	file-grey.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	Aqua.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	Aqua.mpsl.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	DEMONS.mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202

File type:	ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, missing section headers at 52906664
Entropy (8bit):	5.722979084281529
TrID:	ELF Executable and Linkable format (Linux) (4029/14) 50.16% ELF Executable and Linkable format (generic) (4004/1) 49.84%
File name:	nn.elf
File size:	51'605'539 bytes
MD5:	2eddd23f0b126d19ac930e63ed44912f
SHA1:	293fd2c05146d16d725e1b11f4fd6ca38efd3260
SHA256:	7ac6709d8b957f328d1b3ae10f382955dca1eca094f32945f825407e50b7e875
SHA512:	8d6571ac402381ad260cedd71f988236f5c4743c17baa5acbf3237d92a671c87982c7171351d797539587733973d5a4aeb557c08265a960d2d768bd247f07d1e
SSDEEP:	393216:Se4n2yMyec44bbt3QR68Or5CbB/yBHqjihphKmXMGDiw6lcGkVpZu1rlPNNjlNT6:LOQbBqBKjihlXMWiwO9uZePX3d5Z1Bc5
TLSH:	E8B7F147F59150ECC1AED13486669263BA707CA94B3037EB2B90F7792E32BE05B39354
File Content Preview:	.ELF..............>.......C.....@........A'.........@.8...@.$.#.........@.......@.@.....@.@.....0.......0.......................p.......p.@.....p.@...............................................@.......@.......t.......t....... ...............t............

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Jan 2, 2025 20:31:52.229135990 CET	43928	443	192.168.2.23	91.189.91.42
Jan 2, 2025 20:31:57.604239941 CET	42836	443	192.168.2.23	91.189.91.43
Jan 2, 2025 20:31:59.140027046 CET	42516	80	192.168.2.23	109.202.202.202
Jan 2, 2025 20:32:13.474045038 CET	43928	443	192.168.2.23	91.189.91.42
Jan 2, 2025 20:32:23.712687969 CET	42836	443	192.168.2.23	91.189.91.43
Jan 2, 2025 20:32:29.855952978 CET	42516	80	192.168.2.23	109.202.202.202
Jan 2, 2025 20:32:54.428441048 CET	43928	443	192.168.2.23	91.189.91.42
Jan 2, 2025 20:33:14.905550957 CET	42836	443	192.168.2.23	91.189.91.43

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

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Warning!

Linux Analysis Report nn.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Errors

Warnings

Runtime Messages

Malware Threat Intel

Yara Signatures

Initial Sample

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Bitcoin Miner

Networking

System Summary

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

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Linux Analysis Report
nn.elf