MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0
SHA3-384 hash: 48171f73c416e47534887ac94d0595892bc8e0689f17ba1b4bf4ca7f761ac8e3e2c6bca5562f013e34f6aab44465e6a4
SHA1 hash: 22b9a56133827dc266b913af81bb17c69d05fe17
MD5 hash: c0ec1be5d13ea805ded58d1d1522c45b
humanhash: utah-jersey-happy-floor
File name:yakuza.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:65'484 bytes
First seen:2025-01-27 08:57:23 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:XwW/H32uJUFTFi5mFOJD7oh2PL3kRr1neQ0dtXAlfSVj:AWv2uJsTFaPJY2PLkRr18dtGKVj
TLSH T17A530283B40B974F6FFD71FD023E7BC4E61289D125466197A430A62BBE315C12A327E8
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Clean
Maliciousness:

Behaviour
Connection attempt
DNS request
Launching a process
Runs as daemon
Collects information on the OS
Collects information on the CPU
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/67974a9a0a04287e8b02d84c/reports/9ab5b600-380e-42df-bc57-a3fbb162f707/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
UPX
Botnet:
unknown
Number of open files:
11
Number of processes launched:
197
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
SUSPICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3a5bf219-1187-4add-9a16-5ba5a39a5c61
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1600232
Signature
Malicious sample detected (through community Yara rule)
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1600232 Sample: yakuza.mips.elf Startdate: 27/01/2025 Architecture: LINUX Score: 60 39 pirati.privatedns.org 2->39 41 daisy.ubuntu.com 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Yara detected Mirai 2->45 47 Sample is packed with UPX 2->47 9 yakuza.mips.elf 2->9         started        signatures3 process4 process5 11 yakuza.mips.elf 9->11         started        process6 13 yakuza.mips.elf sh 11->13         started        15 yakuza.mips.elf sh 11->15         started        17 yakuza.mips.elf sh 11->17         started        19 45 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 83 other processes 19->37
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0/
Threat name:
Linux.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-01-27 08:58:04 UTC
File Type:
ELF32 Big (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ww457fmv62yx3xmodtwsrcszgdlakhjkamab5ih25dqllcxvuhia._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery upx
Link:
https://tria.ge/reports/250127-kw59ys1jg1/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Reads CPU attributes
Enumerates running processes
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c68f8439-fb97-4516-837b-614d353054f7
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf b5b9df9595f6b17ddd8e1ced288a5930d6051d2a03001ea0fae8e0b58af5a1d0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3336629/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3336512/
  
URLhaus
https://urlhaus.abuse.ch/url/3336472/

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