MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 551d4e941a5e0687c830d3d62b342f58081d9da51bbb1e0bdaac84b22afa9349. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 551d4e941a5e0687c830d3d62b342f58081d9da51bbb1e0bdaac84b22afa9349
SHA3-384 hash: 0e4d2d4aad303df1bf50cf6bcb8584f56e1b180ed7fc646ed1911c2dc62117cc9654f97467d77570d0a8c7289de2e054
SHA1 hash: f94ce52e70a96b3935b36aaab9a11c569c9dcee4
MD5 hash: bd73a31552a199b1ed4ef0ec3f228487
humanhash: grey-muppet-neptune-florida
File name:Yboats.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:43'444 bytes
First seen:2025-12-03 16:46:51 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:1Hdk0jZ6NStnLnAkIDpZZBSTZvn++hLh3EgdXnbcuyD7UVyqQ:tdk4y8Ak4Z36Zvn++H37nouy8sqQ
TLSH T1C813F186A3C49AACF89844F2DE0FEF0B4640921D70AF62B2EBD8753A2D5F70435B5C05
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf mirai UPX
File size (compressed) :43'444 bytes
File size (de-compressed) :112'016 bytes
Format:linux/i386
Unpacked file: 635a32797a0b014a8b82672109cf682b7106e159e26b8ed48e0d7b136841bfde

Intelligence

File Origin
# of uploads :
1
# of downloads :
24
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/dae68f03-7c75-43ae-aa9a-fba952cc8bba/
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/69306991856673a0547db391/reports/4d367f5d-e063-4d18-ae9d-d372214d6d5c/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/29bd2c62-f9cf-4f50-9055-d3b8877183a9
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1825618
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample is packed with UPX
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1825618 Sample: Yboats.x86.elf Startdate: 03/12/2025 Architecture: LINUX Score: 96 20 Malicious sample detected (through community Yara rule) 2->20 22 Multi AV Scanner detection for submitted file 2->22 24 Yara detected Okiru 2->24 26 2 other signatures 2->26 7 Yboats.x86.elf 2->7         started        process3 signatures4 28 Sample deletes itself 7->28 10 Yboats.x86.elf 7->10         started        process5 process6 12 Yboats.x86.elf 10->12         started        14 Yboats.x86.elf 10->14         started        16 Yboats.x86.elf 10->16         started        18 24 other processes 10->18
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/551d4e941a5e0687c830d3d62b342f58081d9da51bbb1e0bdaac84b22afa9349
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/551d4e941a5e0687c830d3d62b342f58081d9da51bbb1e0bdaac84b22afa9349/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/551d4e941a5e0687c830d3d62b342f58081d9da51bbb1e0bdaac84b22afa9349
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-03 16:47:15 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kuou5fa2lydipsbq2plcwnbplaeb3hnfdo5r4c62vsclekx2sneq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251203-val93a1mfw/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Contacts a large (1428340) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
Malware Config
C2 Extraction:
cnc.504.su
scan.504.su
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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: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 551d4e941a5e0687c830d3d62b342f58081d9da51bbb1e0bdaac84b22afa9349

(this sample)

Mirai

elf 635a32797a0b014a8b82672109cf682b7106e159e26b8ed48e0d7b136841bfde

  
URLhaus
https://urlhaus.abuse.ch/url/3723980/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 635a32797a0b014a8b82672109cf682b7106e159e26b8ed48e0d7b136841bfde
  
Dropping
MD5 edd74bc8b32d2c5733b0d348ca6bda7c

Comments