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Linux Analysis Report
spc.elf

Overview

General Information

Sample name:	spc.elf
Analysis ID:	1675485
MD5:	9d7ca3bd06277980d3c8e0741b182167
SHA1:	66698a1dfaade4f6055171d35e71dbd3e28f6b13
SHA256:	25e7ac7561683ca87561b1ce80cf7d1005f85c61334c838b72668923ca91d9e6
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

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

Sample has stripped symbol table

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

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1675485
Start date and time:	2025-04-27 16:39:26 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 31s
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:	MAL
Classification:	mal48.linELF@0/0@0/0

Runtime Messages

Command:	/tmp/spc.elf
PID:	6232
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

spc.elf (PID: 6232, Parent: 6155, MD5: 7dc1c0e23cd5e102bb12e5c29403410e) Arguments: /tmp/spc.elf

dash New Fork (PID: 6295, Parent: 4331)

rm (PID: 6295, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.6ej66JGefU /tmp/tmp.4ed5jlcAyx /tmp/tmp.OeJpR5iGTt

dash New Fork (PID: 6296, Parent: 4331)

rm (PID: 6296, Parent: 4331, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.6ej66JGefU /tmp/tmp.4ed5jlcAyx /tmp/tmp.OeJpR5iGTt

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
• Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: spc.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: 91.189.91.42
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: 91.189.91.43
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: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /usr/bin/dash (PID: 6295)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.6ej66JGefU /tmp/tmp.4ed5jlcAyx /tmp/tmp.OeJpR5iGTt			Jump to behavior
Source: /usr/bin/dash (PID: 6296)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.6ej66JGefU /tmp/tmp.4ed5jlcAyx /tmp/tmp.OeJpR5iGTt			Jump to behavior

Source: /tmp/spc.elf (PID: 6232)

Queries kernel information via 'uname':

Jump to behavior

Source: spc.elf, 6232.1.0000562a1df69000.0000562a1dfee000.rw-.sdmp	Binary or memory string: *V!/etc/qemu-binfmt/sparc
Source: spc.elf, 6232.1.0000562a1df69000.0000562a1dfee000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sparc
Source: spc.elf, 6232.1.0000562a1df69000.0000562a1dfee000.rw-.sdmp	Binary or memory string: *V!/usr/bin/vmtoolsd
Source: spc.elf, 6232.1.0000562a1df69000.0000562a1dfee000.rw-.sdmp	Binary or memory string: /usr/bin/vmtoolsd
Source: spc.elf, 6232.1.00007fff19b1c000.00007fff19b3d000.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, 6232.1.00007fff19b1c000.00007fff19b3d000.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	1 File Deletion	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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
spc.elf	19%	ReversingLabs	Linux.Backdoor.Mirai

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	arm4.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	crossc2.elf	Get hash	malicious	Unknown	Browse
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.mpsl.elf	Get hash	malicious	Mirai	Browse
	Mozi.m.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sshd.elf	Get hash	malicious	Unknown	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	arm4.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	crossc2.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	na.elf	Get hash	malicious	Prometei	Browse
91.189.91.42	arm4.elf	Get hash	malicious	Unknown	Browse
	.i.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	mips.elf	Get hash	malicious	Unknown	Browse
	crossc2.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse
	boatnet.arm.elf	Get hash	malicious	Mirai	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	arm4.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	.i.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	mips.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	crossc2.elf	Get hash	malicious	Unknown	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	185.125.190.26
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
INIT7CH	arm4.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	.i.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	mips.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	crossc2.elf	Get hash	malicious	Unknown	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
	boatnet.ppc.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	109.202.202.202
	na.elf	Get hash	malicious	Prometei	Browse	109.202.202.202
AMAZON-02US	250427-q7q73avjy5.bin.exe	Get hash	malicious	Neconyd	Browse	44.247.155.67
	arm4.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	.i.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	13.214.182.154
	mips.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	crossc2.elf	Get hash	malicious	Unknown	Browse	34.249.145.219
	na.elf	Get hash	malicious	Prometei	Browse	13.214.182.154
	ZIRRZXJR.msi	Get hash	malicious	Unknown	Browse	3.169.252.78
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse	34.243.160.129
	boatnet.arm7.elf	Get hash	malicious	Mirai	Browse	34.249.145.219

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):	5.878712933507914
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	spc.elf
File size:	83'272 bytes
MD5:	9d7ca3bd06277980d3c8e0741b182167
SHA1:	66698a1dfaade4f6055171d35e71dbd3e28f6b13
SHA256:	25e7ac7561683ca87561b1ce80cf7d1005f85c61334c838b72668923ca91d9e6
SHA512:	4fc9b217c900a37a0f3c003f6fac1fbf453e79ee2e82167a79f2e2126cf1ba141776a6ebb019f8ca7bb604863f90e29ee526233c3d5b98400276b49a7cb3021a
SSDEEP:	1536:paLa1vaTIkymaeym6y6jZt39so+5rkoChjtwd:pIIWw9dF9som4ud
TLSH:	C5834C22BE761D2BC4C4A47A62F34325F2F6474624BCCA1A7DB10E8DBF65A4031537B9
File Content Preview:	.ELF...........................4..C......4. ...(.......................P...P..............@...@...@....x..S.........dt.Q................................@..(....@.E.................#.....cx..`.....!..... ...@.....".........`......$ ... ...@...........`....

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:	0x101a4
Flags:	0x0
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	82872
Section Header Size:	40
Number of Section Headers:	10
Header String Table Index:	9

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x10094	0x94	0x1c	0x0	0x6	AX	4
.text	PROGBITS	0x100b0	0xb0	0x114a8	0x0	0x6	AX	4
.fini	PROGBITS	0x21558	0x11558	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x21570	0x11570	0x18e0	0x0	0x2	A	8
.ctors	PROGBITS	0x34000	0x14000	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x34008	0x14008	0x8	0x0	0x3	WA	4
.data	PROGBITS	0x34018	0x14018	0x360	0x0	0x3	WA	8
.bss	NOBITS	0x34378	0x14378	0x5078	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x14378	0x3e	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	0x12e50	0x12e50	6.1089	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x14000	0x34000	0x34000	0x378	0x53f0	2.6323	0x6	RW	0x10000	.ctors .dtors .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x6	RW	0x4

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
Apr 27, 2025 16:40:11.251722097 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 27, 2025 16:40:16.626991034 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 27, 2025 16:40:18.418731928 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 27, 2025 16:40:31.217012882 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 27, 2025 16:40:32.489106894 CEST	39246	443	192.168.2.23	34.249.145.219
Apr 27, 2025 16:40:32.489154100 CEST	443	39246	34.249.145.219	192.168.2.23
Apr 27, 2025 16:40:32.489228964 CEST	39246	443	192.168.2.23	34.249.145.219
Apr 27, 2025 16:40:32.489581108 CEST	39246	443	192.168.2.23	34.249.145.219
Apr 27, 2025 16:40:32.489593983 CEST	443	39246	34.249.145.219	192.168.2.23
Apr 27, 2025 16:40:43.503305912 CEST	42836	443	192.168.2.23	91.189.91.43
Apr 27, 2025 16:40:49.646471024 CEST	42516	80	192.168.2.23	109.202.202.202
Apr 27, 2025 16:41:12.171156883 CEST	43928	443	192.168.2.23	91.189.91.42
Apr 27, 2025 16:41:32.480873108 CEST	39246	443	192.168.2.23	34.249.145.219
Apr 27, 2025 16:41:32.528283119 CEST	443	39246	34.249.145.219	192.168.2.23
Apr 27, 2025 16:42:12.242086887 CEST	443	39246	34.249.145.219	192.168.2.23

System Behavior

Analysis Process: spc.elf PID: 6232, Parent PID: 6155

General

Start time (UTC):	14:40:08
Start date (UTC):	27/04/2025
Path:	/tmp/spc.elf
Arguments:	/tmp/spc.elf
File size:	4379400 bytes
MD5 hash:	7dc1c0e23cd5e102bb12e5c29403410e

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 6295, Parent PID: 4331

General

Start time (UTC):	14:41:31
Start date (UTC):	27/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6295, Parent PID: 4331

General

Start time (UTC):	14:41:31
Start date (UTC):	27/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.6ej66JGefU /tmp/tmp.4ed5jlcAyx /tmp/tmp.OeJpR5iGTt
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6296, Parent PID: 4331

General

Start time (UTC):	14:41:31
Start date (UTC):	27/04/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6296, Parent PID: 4331

General

Start time (UTC):	14:41:31
Start date (UTC):	27/04/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.6ej66JGefU /tmp/tmp.4ed5jlcAyx /tmp/tmp.OeJpR5iGTt
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

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 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

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report spc.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

Malware Analysis System Evasion

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

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: spc.elf PID: 6232, Parent PID: 6155

General

File Activities

File Opened

File Read

Directory Enumerated

Process Activities

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 6295, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 6295, Parent PID: 4331

General

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 6296, Parent PID: 4331

General

Process Activities

Process Overlayed (Exec)

Linux Analysis Report
spc.elf