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Linux Analysis Report
spc.elf

Overview

General Information

Sample name:	spc.elf
Analysis ID:	1543490
MD5:	9a57fd1f7096fa0bd4955dee759a71ae
SHA1:	646d092a79b86d3df84e8cab481cb18f74972fc9
SHA256:	91816856c6d12fd950822c32c86937caa93a7840415e6f9f53bfe6ac9ca0dbc1
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	1
Range:	0 - 100
Whitelisted:	false

Signatures

Sample has stripped symbol table

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

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1543490
Start date and time:	2024-10-28 01:33:10 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 25s
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:	spc.elf
Detection:	CLEAN
Classification:	clean1.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/spc.elf
PID:	5488
Exit Code:	0
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

spc.elf (PID: 5488, Parent: 5412, MD5: 7dc1c0e23cd5e102bb12e5c29403410e) Arguments: /tmp/spc.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: 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: unknown

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

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /tmp/spc.elf (PID: 5488)

Queries kernel information via 'uname':

Jump to behavior

Source: spc.elf, 5488.1.00005609938df000.0000560993944000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sparc
Source: spc.elf, 5488.1.00005609938df000.0000560993944000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/sparc
Source: spc.elf, 5488.1.00007ffcd6038000.00007ffcd6059000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sparc/tmp/spc.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/spc.elf
Source: spc.elf, 5488.1.00007ffcd6038000.00007ffcd6059000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-sparc

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	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

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
spc.elf	11%	ReversingLabs	Linux.Backdoor.Mirai

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. 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	FBI.mpsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse
	c0r0n4x.ppc.elf	Get hash	malicious	Unknown	Browse
	dlr.x86.elf	Get hash	malicious	Okiru	Browse
	main_sh4.elf	Get hash	malicious	Mirai	Browse
	main_ppc.elf	Get hash	malicious	Mirai	Browse
	main_arm5.elf	Get hash	malicious	Mirai	Browse
	main_arm7.elf	Get hash	malicious	Mirai	Browse
	arm7.elf	Get hash	malicious	Unknown	Browse
	m68k.elf	Get hash	malicious	Unknown	Browse
	armv7l.elf	Get hash	malicious	Gafgyt, Mirai	Browse

Domains

⊘No context

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
CANONICAL-ASGB	na.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_arm5.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	sshd.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	linux_mipsel_softfloat.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	linux_arm7.elf	Get hash	malicious	Chaos	Browse	91.189.91.42
	boatnet.arm5.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	arm7.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	x86.elf	Get hash	malicious	Unknown	Browse	91.189.91.42

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 MSB executable, SPARC, version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.911445285151019
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	spc.elf
File size:	67'244 bytes
MD5:	9a57fd1f7096fa0bd4955dee759a71ae
SHA1:	646d092a79b86d3df84e8cab481cb18f74972fc9
SHA256:	91816856c6d12fd950822c32c86937caa93a7840415e6f9f53bfe6ac9ca0dbc1
SHA512:	3fd8541bd05bc2af535198dac5d094db50f55a735195a6b0b7f9ffef3b667f5725c813d868652d987af9339cdacb0a6c5c86b8cdec84fa5aca1692dcbfd456b1
SSDEEP:	1536:9xlO2CIxEf9IohAsrBXAPihYPE8L3FtTO:9zJCIxi9Io9rjhr2O
TLSH:	C6633A723BA50B37C8E0553890E7A32BF3FA47892474860B7AA19D8C7F9D96131537E4
File Content Preview:	.ELF...........................4...\|.....4. ...(.......................................................$..3p...............H...H...H................dt.Q................................@..(....@.:.................#.....`(..`.....!....."...@.....".........`

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, big endian
Version:	1 (current)
Machine:	Sparc
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x101c4
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	4
Section Header Offset:	66684
Section Header Size:	40
Number of Section Headers:	14
Header String Table Index:	13

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x100b4	0xb4	0x1c	0x0	0x6	AX	4
.text	PROGBITS	0x100d0	0xd0	0xeb08	0x0	0x6	AX	4
.fini	PROGBITS	0x1ebd8	0xebd8	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x1ebf0	0xebf0	0x1200	0x0	0x2	A	8
.eh_frame	PROGBITS	0x20000	0x10000	0x48	0x0	0x3	WA	4
.tbss	NOBITS	0x20048	0x10048	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x20048	0x10048	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x20050	0x10050	0x8	0x0	0x3	WA	4
.jcr	PROGBITS	0x20058	0x10058	0x4	0x0	0x3	WA	4
.got	PROGBITS	0x2005c	0x1005c	0x1bc	0x4	0x3	WA	4
.data	PROGBITS	0x20218	0x10218	0x20c	0x0	0x3	WA	8
.bss	NOBITS	0x20428	0x10424	0x2f48	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x10424	0x58	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x10000	0x10000	0xfdf0	0xfdf0	5.9607	0x5	R E	0x1000	.init .text .fini .rodata
LOAD	0x10000	0x20000	0x20000	0x424	0x3370	4.3735	0x6	RW	0x1000	.eh_frame .tbss .ctors .dtors .jcr .got .data .bss
TLS	0x10048	0x20048	0x20048	0x0	0x8	0.0000	0x4	R	0x4	.tbss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

Network Behavior

Network Port Distribution

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 28, 2024 01:34:03.284256935 CET	46540	443	192.168.2.14	185.125.190.26
Oct 28, 2024 01:34:35.027034998 CET	46540	443	192.168.2.14	185.125.190.26

System Behavior

Analysis Process: spc.elf PID: 5488, Parent PID: 5412

General

Start time (UTC):	00:33:52
Start date (UTC):	28/10/2024
Path:	/tmp/spc.elf
Arguments:	/tmp/spc.elf
File size:	4379400 bytes
MD5 hash:	7dc1c0e23cd5e102bb12e5c29403410e

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

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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Linux Analysis Report spc.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

Networking

System Summary

Malware Analysis System Evasion

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: spc.elf PID: 5488, Parent PID: 5412

General

Chronological Activities

Linux Analysis Report
spc.elf