MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8be5713d46ca9f111456587eb1d1de5be70577472ddefd84fcf772c7c15bb11. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8be5713d46ca9f111456587eb1d1de5be70577472ddefd84fcf772c7c15bb11
SHA3-384 hash: d8b5b5f3854d587dea79c8c549823d8e22a814bc00b664cfa1838337cc684e6bee3e29689f37b5244df1965251a0dcd4
SHA1 hash: 1cf53af0d2f44b496bdbbf40504c7c546964bef6
MD5 hash: 016f9f1e287cc55895265c530247d5d3
humanhash: ohio-red-lake-blue
File name:Yboats.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:100'224 bytes
First seen:2025-12-03 12:19:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:WgPBnECUZ5pXj2iAY/Etrbd6j5z2gltS5JGyf5XK856Vv2AgKKakxpqWwQvvpbbX:/aZ7Xj2IjsnwJM9BbXpbbH5iqeH
TLSH T1E0A33C46BCE1CA6AC6D023BBBB2E219C332153E8C2EF7117DC24176826C645E1F37A41
telfhash t19ee0df40ac699e2c98d7aa74dddd07a496016223556a4b10cf10dbe4883f458e30ce5e
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 66f8c92f52b3624d772aab0a43ee237f0d80e69f4c058f8e0a7eaefb92d0f54c
File size (compressed) :32'596 bytes
File size (de-compressed) :100'224 bytes
Format:linux/arm
Packed file: 66f8c92f52b3624d772aab0a43ee237f0d80e69f4c058f8e0a7eaefb92d0f54c

Intelligence

File Origin
# of uploads :
1
# of downloads :
28
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Detection(s):
Sanesecurity.Malware.29502.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30442.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29524.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135870-0
Create hunting rule

Unix.Dropper.Mirai-7135906-0
Create hunting rule

Unix.Dropper.Mirai-7135966-0
Create hunting rule

Unix.Dropper.Mirai-7135979-0
Create hunting rule

Unix.Dropper.Mirai-7135980-0
Create hunting rule

Unix.Dropper.Mirai-7171384-0
Create hunting rule

Unix.Dropper.Mirai-7355719-0
Create hunting rule

Unix.Trojan.Mirai-9935718-0
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Unix.Trojan.Gafgyt-6748839-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade mirai obfuscated rust
Link:
https://www.filescan.io/uploads/69302b0437f663155c3610e3/reports/c0a004e1-b4b1-4e68-9b38-f3eed20d610f/overview
Result
Gathering data
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0f4ad19b-8848-4eca-81f2-d237c380e327
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1825316
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b8be5713d46ca9f111456587eb1d1de5be70577472ddefd84fcf772c7c15bb11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8be5713d46ca9f111456587eb1d1de5be70577472ddefd84fcf772c7c15bb11/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xc7foe6unsu7cekfmwd6whi54w7hav3uolo67wcpz53sy7avxmiq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable
Link:
https://tria.ge/reports/251203-phx4msyqaj/
Malware Config
C2 Extraction:
cnc.504.su
scan.504.su
Verdict:
Malicious
Tags:
botnet mirai Unix.Dropper.Mirai-7135870-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_1
Link:
https://app.threat.zone/submission/f0370eae-d759-4e7a-83e6-f0a1bf764627
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/b8be5713d46ca9f111456587eb1d1de5be70577472ddefd84fcf772c7c15bb11

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_1_RID2F39
Create hunting rule
Author:Florian Roth
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 66f8c92f52b3624d772aab0a43ee237f0d80e69f4c058f8e0a7eaefb92d0f54c

Mirai

elf b8be5713d46ca9f111456587eb1d1de5be70577472ddefd84fcf772c7c15bb11

(this sample)

  
Dropped by
SHA256 66f8c92f52b3624d772aab0a43ee237f0d80e69f4c058f8e0a7eaefb92d0f54c
  
URLhaus
https://urlhaus.abuse.ch/url/3723975/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 0d12d17c6844beb6c2b89cae996ad398

Comments