MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3d62ef5384d652eada72ac38603793a332e7ae74def72f6d20c5c5afe6e87df. 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: 8


Intelligence 8 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f3d62ef5384d652eada72ac38603793a332e7ae74def72f6d20c5c5afe6e87df
SHA3-384 hash: fa0b81d834023186026152dba0a420028b22ef2aa58b192df4981f4dd2d514f456d0cd99183fe9057fbbbc228aa28050
SHA1 hash: 199563f96568b78eb9bbc637fcdc3043417f3807
MD5 hash: 902bda20bdb73eff9af9681b7f3028c5
humanhash: saturn-charlie-oranges-bacon
File name:Yboats.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:112'016 bytes
First seen:2025-12-03 07:29:19 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:x6t9FpC9tHJ+HAJD106TvwuVgC9iLAgRPYNp:YT3StH8HAp1XwAyu
TLSH T1B1B35BC5AAC394F2DC0046B5306BDF328972E5BE012BDBC6E7ECDD3BA959521840729D
telfhash t108315db9a9660cecbbd08813e2ce7720ee2ea57b356036bd19f6644035b3051523dc39
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 2d7aad4cd9f534449106df11d19e3aed6a65db961acdd232885aee5cde939131
File size (compressed) :43'424 bytes
File size (de-compressed) :112'016 bytes
Format:linux/i386
Packed file: 2d7aad4cd9f534449106df11d19e3aed6a65db961acdd232885aee5cde939131

Intelligence

File Origin
# of uploads :
1
# of downloads :
20
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
Link:
https://www.filescan.io/uploads/692fe70d8e26c121ec951ee1/reports/c0978609-4694-4078-949d-752076ad2096/overview
Result
Gathering data
Gathering data
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1825126
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1825126 Sample: Yboats.x86.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.x86.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.x86.elf 7->14         started        process5 process6 16 Yboats.x86.elf 14->16         started        18 Yboats.x86.elf 14->18         started        20 Yboats.x86.elf 14->20         started        22 24 other processes 14->22
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f3d62ef5384d652eada72ac38603793a332e7ae74def72f6d20c5c5afe6e87df
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f3d62ef5384d652eada72ac38603793a332e7ae74def72f6d20c5c5afe6e87df/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6plc55jyjvss5lnhflbyma3zhizs46xhjxxxf5wsbrofv7toq7pq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery linux
Link:
https://tria.ge/reports/251203-jb1cjavjaz/
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 (1414964) amount of remote hosts
Creates a large amount of network flows
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.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/f3d62ef5384d652eada72ac38603793a332e7ae74def72f6d20c5c5afe6e87df

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:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_aa39fb02
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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: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

sh 99bff4adcb1e047daa826367b3fa3a69d6fe84fb4f0127f3e5c90a9388d80f62

Mirai

elf 2d7aad4cd9f534449106df11d19e3aed6a65db961acdd232885aee5cde939131

Mirai

elf f3d62ef5384d652eada72ac38603793a332e7ae74def72f6d20c5c5afe6e87df

(this sample)

  
Dropped by
SHA256 2d7aad4cd9f534449106df11d19e3aed6a65db961acdd232885aee5cde939131
  
URLhaus
https://urlhaus.abuse.ch/url/3723980/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 5912a2cca11d4aad7350dc2d9c216411

Comments