MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53d5bfedbe9335244088648533751e5260a82bb8359a8cd7540a76b9e880990d. 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 11 File information Comments

SHA256 hash: 53d5bfedbe9335244088648533751e5260a82bb8359a8cd7540a76b9e880990d
SHA3-384 hash: d9c46fcd884fdfe5ad10dede3ea0f19c751d4802bf2520c119281dd7a02593e67067b3563fdf6a2fe8ce34e252887e6b
SHA1 hash: 6d89337c9fb97d43e561d9a452109b5d33b60e48
MD5 hash: b489518b80b01897fcc185478053ff3e
humanhash: uranus-cat-pip-july
File name:Yboats.sh4
Download: download sample
Signature Mirai
File size:116'308 bytes
First seen:2025-12-03 17:05:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:uEa3vwc/BLq+Q0ZDf2DBLWudjyl2zqWdWZHxFlK9chugxc7cCKRuQEdT1T:fgwc/Y0ZDf29LdjVhWZHx29yxc7c6LZ
TLSH T1C3B3BF75D0A51CE1C190863460F1AE3E93A3F414A71B1FF26958C7AE644BDECB25B3B8
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

Intelligence


File Origin
# of uploads :
1
# of downloads :
59
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
a c2 socket address and a scan socket address
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade mirai obfuscated
Result
Gathering data
Result
Threat name:
Mirai, Okiru
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1825631 Sample: Yboats.sh4.elf Startdate: 03/12/2025 Architecture: LINUX Score: 100 24 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 2 other signatures 2->30 7 Yboats.sh4.elf 2->7         started        10 dash rm 2->10         started        12 dash rm 2->12         started        process3 signatures4 32 Sample deletes itself 7->32 14 Yboats.sh4.elf 7->14         started        process5 process6 16 Yboats.sh4.elf 14->16         started        18 Yboats.sh4.elf 14->18         started        20 Yboats.sh4.elf 14->20         started        22 24 other processes 14->22
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-12-03 16:50:30 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:unstable linux
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:CVE_2017_17215
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Author:Elastic Security
Rule name:Linux_Generic_Threat_3bcc1630
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_1
Author:Florian Roth (Nextron Systems)
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_1_RID2F39
Author:Florian Roth
Description:Detects ELF Mirai variant
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
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 53d5bfedbe9335244088648533751e5260a82bb8359a8cd7540a76b9e880990d

(this sample)

  
Delivery method
Distributed via web download

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