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Linux Analysis Report X86_64

Overview

General Information

Sample Name:	X86_64
Analysis ID:	491751
MD5:	28007c7ac1c6c2880279aeaab2c25f17
SHA1:	ac64ad6324ac4ccf079dfd4c8255d1cbf3175306
SHA256:	5fa70a36cc2ac68dfe216e4007848b7e90722a82acc7ca1778780b7393b3f735
Tags:	elfmirai
Infos:

Detection

Score:	56
Range:	0 - 100
Whitelisted:	false

Signatures

Multi AV Scanner detection for submitted file

Opens /proc/net/* files useful for finding connected devices and routers

Machine Learning detection for sample

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

Detected TCP or UDP traffic on non-standard ports

Sample has stripped symbol table

Classification

Analysis Advice

All HTTP servers contacted by the sample do not answer. Likely the sample is an old dropper which does no longer work

General Information

Joe Sandbox Version:	33.0.0 White Diamond
Analysis ID:	491751
Start date:	27.09.2021
Start time:	21:14:51
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 6m 32s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	X86_64
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
Detection:	MAL
Classification:	mal56.spre.lin@0/0@0/0

Process Tree

system is lnxubuntu20

X86_64 (PID: 5223, Parent: 5110, MD5: 28007c7ac1c6c2880279aeaab2c25f17) Arguments: /tmp/X86_64

X86_64 New Fork (PID: 5224, Parent: 5223)

X86_64 New Fork (PID: 5225, Parent: 5223)

X86_64 New Fork (PID: 5226, Parent: 5225)

cleanup

Yara Overview

No yara matches

Jbx Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Multi AV Scanner detection for submitted file

Show sources

Source: X86_64	Virustotal: Detection: 40%			Perma Link
Source: X86_64	ReversingLabs: Detection: 44%

Machine Learning detection for sample

Show sources

Source: X86_64

Joe Sandbox ML: detected

Spreading:

Opens /proc/net/* files useful for finding connected devices and routers

Show sources

Source: /tmp/X86_64 (PID: 5223)

Opens: /proc/net/route

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: global traffic

TCP traffic: 192.168.2.23:44652 -> 167.114.109.203:6525

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

Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
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: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203
Source: unknown	TCP traffic detected without corresponding DNS query: 167.114.109.203

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.spre.lin@0/0@0/0

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	Direct Volume Access	OS Credential Dumping	Remote System Discovery1	Remote Services	Data from Local System	Exfiltration Over Other Network Medium	Encrypted Channel1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
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	Exfiltration Over Bluetooth	Non-Standard Port1	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Application Layer Protocol1	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data

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
X86_64	40%	Virustotal		Browse
X86_64	44%	ReversingLabs	Linux.Backdoor.Bashlite
X86_64	100%	Joe Sandbox ML

Dropped Files

No Antivirus matches

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public

IP	Domain	Country	ASN	ASN Name	Malicious
167.114.109.203	unknown	Canada	16276	OVHFR	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

Runtime Messages

Command:	/tmp/X86_64
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:	gosh that chinese family at the other table sure ate alot
Standard Error:

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Link
109.202.202.202	rrVvnZMcFs	Get hash	malicious	Browse
	pAu4km62R9	Get hash	malicious	Browse
	kUFNxyzq7h	Get hash	malicious	Browse
	QMVi2eFA3O	Get hash	malicious	Browse
	ZkoBOcJ402	Get hash	malicious	Browse
	BPJoS4yXO5	Get hash	malicious	Browse
	ryXG31Qpen	Get hash	malicious	Browse
	V6nVmla0r8	Get hash	malicious	Browse
	ETZr9gYnOG	Get hash	malicious	Browse
	wEA8Sws7Me	Get hash	malicious	Browse
	AJ0ZSJ7K36	Get hash	malicious	Browse
	fhPeao3t5X	Get hash	malicious	Browse
	5ndmU5fZJW	Get hash	malicious	Browse
	PoLc6KlROB	Get hash	malicious	Browse
	1j9nlon8bL	Get hash	malicious	Browse
	oBsSmO47B1	Get hash	malicious	Browse
	r6c76MpUDj	Get hash	malicious	Browse
	tHOi2INjNx	Get hash	malicious	Browse
	D0kphZoxnr	Get hash	malicious	Browse
	EL2beRAhLp	Get hash	malicious	Browse
91.189.91.43	rrVvnZMcFs	Get hash	malicious	Browse
	pAu4km62R9	Get hash	malicious	Browse
	kUFNxyzq7h	Get hash	malicious	Browse
	QMVi2eFA3O	Get hash	malicious	Browse
	ZkoBOcJ402	Get hash	malicious	Browse
	BPJoS4yXO5	Get hash	malicious	Browse
	ryXG31Qpen	Get hash	malicious	Browse
	V6nVmla0r8	Get hash	malicious	Browse
	ETZr9gYnOG	Get hash	malicious	Browse
	wEA8Sws7Me	Get hash	malicious	Browse
	AJ0ZSJ7K36	Get hash	malicious	Browse
	fhPeao3t5X	Get hash	malicious	Browse
	5ndmU5fZJW	Get hash	malicious	Browse
	PoLc6KlROB	Get hash	malicious	Browse
	1j9nlon8bL	Get hash	malicious	Browse
	oBsSmO47B1	Get hash	malicious	Browse
	r6c76MpUDj	Get hash	malicious	Browse
	tHOi2INjNx	Get hash	malicious	Browse
	D0kphZoxnr	Get hash	malicious	Browse
	EL2beRAhLp	Get hash	malicious	Browse

Domains

No context

ASN

Match	Associated Sample Name / URL	SHA 256	Detection	Link	Context
OVHFR	2mdb3OG6FM.exe	Get hash	malicious	Browse	51.255.34.79
	GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709212890.exe	Get hash	malicious	Browse	37.59.226.120
	ZFb3RmLJzo	Get hash	malicious	Browse	51.70.255.217
	Sht1aYGDIX	Get hash	malicious	Browse	51.178.244.189
	nDHL_Shipment_Notification_1231413385_Notification_1231413385_september2021.exe	Get hash	malicious	Browse	178.32.63.50
	DHL_Shipment_Notification_1231413385_Notification_1231413385_september2021.exe	Get hash	malicious	Browse	178.32.63.50
	Lrs8NGx6VM.exe	Get hash	malicious	Browse	164.132.171.176
	Claim-838392655-09242021.xls	Get hash	malicious	Browse	51.89.115.111
	2PzMc3x4WP.exe	Get hash	malicious	Browse	87.98.153.120
	e5jVcbuCo5.exe	Get hash	malicious	Browse	176.31.32.199
	i7qUJCnMz0.exe	Get hash	malicious	Browse	176.31.32.199
	zsChlwJrkj.exe	Get hash	malicious	Browse	176.31.32.199
	claim.xls	Get hash	malicious	Browse	51.89.115.111
	9uHCz7MrjF.exe	Get hash	malicious	Browse	176.31.32.199
	J1IYv644YS.exe	Get hash	malicious	Browse	51.254.69.209
	b3astmode.arm7	Get hash	malicious	Browse	37.187.28.233
	J7SOJRlEly.exe	Get hash	malicious	Browse	51.91.193.179
	SE6Hlp3GfE.exe	Get hash	malicious	Browse	176.31.32.199
	TxIlr8dCCJ.exe	Get hash	malicious	Browse	176.31.32.199
	xZqtlgwoWq.exe	Get hash	malicious	Browse	176.31.32.199

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 (SYSV), statically linked, stripped
Entropy (8bit):	6.265443608550432
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	X86_64
File size:	81408
MD5:	28007c7ac1c6c2880279aeaab2c25f17
SHA1:	ac64ad6324ac4ccf079dfd4c8255d1cbf3175306
SHA256:	5fa70a36cc2ac68dfe216e4007848b7e90722a82acc7ca1778780b7393b3f735
SHA512:	d8b63bd73cd59f852723fdf58ea661a56bb1924746b8c4b0a9ca609cc02a532d51b3d51ccbcc798b6f734365377bbef1cf5bd706f7359f560386855ed14f7547
SSDEEP:	1536:aVnirf3qAhHvvX6YbESLAvM0gLVxoOOqjYum0Hi1pczCf3k:ahir3hPvX6YRcvapOqjXLC1pUCvk
File Content Preview:	.ELF..............>.......@.....@........:..........@.8...@.......................@.......@...........................................Q......*Q.............hr..............Q.td....................................................H...._........H........

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 - System V
ABI Version:	0
Entry Point Address:	0x400194
Flags:	0x0
ELF Header Size:	64
Program Header Offset:	64
Program Header Size:	56
Number of Program Headers:	3
Section Header Offset:	80576
Section Header Size:	64
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	0x4000e8	0xe8	0x13	0x0	0x6	AX	1
.text	PROGBITS	0x400100	0x100	0xf6b8	0x0	0x6	AX	16
.fini	PROGBITS	0x40f7b8	0xf7b8	0xe	0x0	0x6	AX	1
.rodata	PROGBITS	0x40f7e0	0xf7e0	0x3220	0x0	0x2	A	32
.eh_frame	PROGBITS	0x412a00	0x12a00	0x4	0x0	0x2	A	4
.ctors	PROGBITS	0x512a08	0x12a08	0x10	0x0	0x3	WA	8
.dtors	PROGBITS	0x512a18	0x12a18	0x10	0x0	0x3	WA	8
.jcr	PROGBITS	0x512a28	0x12a28	0x8	0x0	0x3	WA	8
.data	PROGBITS	0x512a40	0x12a40	0x4d8	0x0	0x3	WA	32
.bss	NOBITS	0x512f20	0x12f18	0x6d50	0x0	0x3	WA	32
.comment	PROGBITS	0x0	0x12f18	0xb52	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x13a6a	0x56	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x400000	0x400000	0x12a04	0x12a04	3.4215	0x5	R E	0x100000	.init .text .fini .rodata .eh_frame
LOAD	0x12a08	0x512a08	0x512a08	0x510	0x7268	1.3533	0x6	RW	0x100000	.ctors .dtors .jcr .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x8

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Sep 27, 2021 21:15:42.210840940 CEST	44652	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:15:42.330096960 CEST	6525	44652	167.114.109.203	192.168.2.23
Sep 27, 2021 21:15:52.592396975 CEST	43928	443	192.168.2.23	91.189.91.42
Sep 27, 2021 21:16:02.329252005 CEST	44654	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:16:02.458722115 CEST	6525	44654	167.114.109.203	192.168.2.23
Sep 27, 2021 21:16:02.831301928 CEST	42836	443	192.168.2.23	91.189.91.43
Sep 27, 2021 21:16:06.926995039 CEST	42516	80	192.168.2.23	109.202.202.202
Sep 27, 2021 21:16:22.458082914 CEST	44656	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:16:22.587037086 CEST	6525	44656	167.114.109.203	192.168.2.23
Sep 27, 2021 21:16:33.548327923 CEST	43928	443	192.168.2.23	91.189.91.42
Sep 27, 2021 21:16:42.585958004 CEST	44658	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:16:42.701657057 CEST	6525	44658	167.114.109.203	192.168.2.23
Sep 27, 2021 21:16:54.026269913 CEST	42836	443	192.168.2.23	91.189.91.43
Sep 27, 2021 21:17:02.700735092 CEST	44660	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:17:02.816526890 CEST	6525	44660	167.114.109.203	192.168.2.23
Sep 27, 2021 21:17:22.815612078 CEST	44662	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:17:23.847292900 CEST	44662	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:17:23.967688084 CEST	6525	44662	167.114.109.203	192.168.2.23
Sep 27, 2021 21:17:43.966921091 CEST	44664	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:17:44.082438946 CEST	6525	44664	167.114.109.203	192.168.2.23
Sep 27, 2021 21:18:04.081517935 CEST	44666	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:18:04.200479031 CEST	6525	44666	167.114.109.203	192.168.2.23
Sep 27, 2021 21:18:24.199609041 CEST	44668	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:18:24.314738035 CEST	6525	44668	167.114.109.203	192.168.2.23
Sep 27, 2021 21:18:44.313901901 CEST	44670	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:18:44.433027029 CEST	6525	44670	167.114.109.203	192.168.2.23
Sep 27, 2021 21:19:04.432173014 CEST	44672	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:19:05.437196970 CEST	44672	6525	192.168.2.23	167.114.109.203
Sep 27, 2021 21:19:05.554652929 CEST	6525	44672	167.114.109.203	192.168.2.23

System Behavior

Analysis Process: X86_64 PID: 5223 Parent PID: 5110

General

Start time:	21:15:40
Start date:	27/09/2021
Path:	/tmp/X86_64
Arguments:	/tmp/X86_64
File size:	81408 bytes
MD5 hash:	28007c7ac1c6c2880279aeaab2c25f17

Analysis Process: X86_64 PID: 5224 Parent PID: 5223

General

Start time:	21:15:41
Start date:	27/09/2021
Path:	/tmp/X86_64
Arguments:	n/a
File size:	81408 bytes
MD5 hash:	28007c7ac1c6c2880279aeaab2c25f17

Analysis Process: X86_64 PID: 5225 Parent PID: 5223

General

Start time:	21:15:41
Start date:	27/09/2021
Path:	/tmp/X86_64
Arguments:	n/a
File size:	81408 bytes
MD5 hash:	28007c7ac1c6c2880279aeaab2c25f17

Analysis Process: X86_64 PID: 5226 Parent PID: 5225

General

Start time:	21:15:41
Start date:	27/09/2021
Path:	/tmp/X86_64
Arguments:	n/a
File size:	81408 bytes
MD5 hash:	28007c7ac1c6c2880279aeaab2c25f17

Description:	Adversaries may attempt to get a listing of other systems by IP address, hostname, or other logical identifier on a network that may be used for Lateral Movement from the current system. Functionality could exist within remote access tools to enable this, but utilities available on the operating system could also be used such as Ping or `net view` using Net . Adversaries may also use local host files (ex: `C:\Windows\System32\Drivers\etc\hosts` or `/etc/hosts` ) in order to discover the hostname to IP address mappings of remote systems.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, Stackdriver logs
Platforms:	AWS, Azure, GCP, 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:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using a protocol and port paring that are typically not associated. For example, HTTPS over port 8088or port 587as opposed to the traditional port 443. Adversaries may make changes to the standard port used by a protocol to bypass filtering or muddle analysis/parsing of network data.
Tactics:	Command and Control
Data Sources:	Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using 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:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
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 X86_64

Overview

General Information

Detection

Signatures

Classification

Analysis Advice

General Information

Process Tree

Yara Overview

Jbx Signature Overview

AV Detection:

Spreading:

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

Contacted IPs

Public

Runtime Messages

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: X86_64 PID: 5223 Parent PID: 5110

General

Analysis Process: X86_64 PID: 5224 Parent PID: 5223

General

Analysis Process: X86_64 PID: 5225 Parent PID: 5223

General

Analysis Process: X86_64 PID: 5226 Parent PID: 5225

General