MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Mirai


Vendor detections: 11


Intelligence 11 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20
SHA3-384 hash: 2cfcc78cf6d87ba8b16b220c6fb470f280c2c7f15b55b576fcf68c7ed53ccac8dec94d531fa97ef950b81d31e432d13c
SHA1 hash: bed7874833d2835504d2d227e96181fc7e9213f3
MD5 hash: c9f7319c7dd1a1a87e27c55ea61b23fb
humanhash: montana-black-nitrogen-pizza
File name:yakuza.mipsel
Download: download sample
Signature Mirai
Create hunting rule
File size:187'408 bytes
First seen:2024-10-19 11:39:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:GLbu6js/+0I2tlsB3TApuvGFHgSLER9JteI:I5s/+rsi3UuvGFHgSLEXJteI
TLSH T1B504B616BBA19EB7DC6FCD3302EA4602108D954A02D96F6F76B4C61CE78B94F09E3D44
telfhash t1f93145479479ca2d2f732c586c7c4fb61256ab2331527fb0bf9ac4885533002b968d4f
Magika elf
Reporter NDA0E
Tags:elf gafgyt mirai Tsunami Yakuza

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30395.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28962.LCM.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28961.LCM.UNOFFICIAL
Create hunting rule

Unix.Trojan.Gafgyt-6981154-0
Create hunting rule

Unix.Trojan.Tsunami-6981155-0
Create hunting rule

Unix.Trojan.Tsunami-6981161-0
Create hunting rule

Unix.Dropper.Mirai-7136072-0
Create hunting rule

Unix.Dropper.Mirai-7139223-0
Create hunting rule

Unix.Trojan.Mirai-5607483-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Collects information on the OS
Connection attempt
Collects information on the CPU
Sends data to a server
Receives data from a server
Launching a process
Runs as daemon
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bash gcc lolbin remote
Link:
https://www.filescan.io/uploads/67139a9cb27270e57baa7716/reports/7ed59808-1972-457b-a01a-f9bbbf90fc5b/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5feba2d6-66d7-4196-a75c-f230939147a8
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1537687
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses IRC for communication with a C&C
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1537687 Sample: yakuza.mipsel.elf Startdate: 19/10/2024 Architecture: LINUX Score: 64 39 194.110.247.46, 39632, 39634, 39636 FIRSTROOT-ASDE unknown 2->39 41 109.202.202.202, 80 INIT7CH Switzerland 2->41 43 2 other IPs or domains 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 Uses IRC for communication with a C&C 2->49 51 Uses known network protocols on non-standard ports 2->51 9 yakuza.mipsel.elf 2->9         started        signatures3 process4 process5 11 yakuza.mipsel.elf 9->11         started        process6 13 yakuza.mipsel.elf sh 11->13         started        15 yakuza.mipsel.elf sh 11->15         started        17 yakuza.mipsel.elf sh 11->17         started        19 40 other processes 11->19 process7 21 sh pkill 13->21         started        23 sh busybox 13->23         started        25 sh pkill 15->25         started        27 sh busybox 15->27         started        29 sh pkill 17->29         started        31 sh busybox 17->31         started        33 sh pkill 19->33         started        35 sh busybox 19->35         started        37 73 other processes 19->37
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20/
Threat name:
Linux.Trojan.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2024-10-19 02:56:13 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wtmlzwaoqardm3bwgui7wslwvs5auvket7vfagjgt4jgtifyjiqa._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery
Link:
https://tria.ge/reports/241019-nsvwlawdjl/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Reads CPU attributes
Enumerates running processes
Verdict:
Malicious
Tags:
trojan tsunami
YARA:
Linux_Trojan_Tsunami_8a11f9be
Link:
https://app.threat.zone/submission/e03e58af-7a12-4cba-a69e-6890230db17d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:linux_generic_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
Rule name:Linux_Trojan_Tsunami_8a11f9be
Create hunting rule
Author:Elastic Security
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:ShellScript_Downloader
Create hunting rule
Author:NDA0E
Description:Detects Generic ShellScript Downloader
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf b4d8bcd80e8022366c363511fb4976acba0a55449fea5019269f1269a0b84a20

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3242763/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3242788/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments