MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247
SHA3-384 hash: 3c231e0895bae5c5516c2cd88d1f8b5a90ffdccec8970d76894240fbd4efbe30ae596409e9d3871390aff5b503a33b83
SHA1 hash: 9de99be52815781cceb3ba9c9b82587d7148b9c9
MD5 hash: 0c639d4a5d621c0f2516811d18c6d506
humanhash: floor-may-six-ten
File name:kt1
Download: download sample
Signature Mirai
Create hunting rule
File size:31'964 bytes
First seen:2025-05-09 04:58:48 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:7quu6WqPWTVaRoNzgCFLdffQ7V97wSSjtnbcuyD7UB8IMJVTH:muurDQAFSMnouy8B8vJ5H
TLSH T136E2E1466D088749D7CFE03619AEEACBB921746DEC908BFF9D506027A0D0B183D6DB49
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 :
110
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681d8be091991ead82b65cf8linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Connection attempt
Receives data from a server
Opens a port
DNS request
Sends data to a server
Kills processes
Substitutes an application name
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
mirai packed upx
Link:
https://www.filescan.io/uploads/681d8b9b0b64e174c41f021c/reports/5cfa4db5-814d-415c-9a18-a222825c5955/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
1
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/06c499f0-8c78-4e54-a8bc-c183a2b6a0d5
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1685073
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1685073 Sample: kt1.elf Startdate: 09/05/2025 Architecture: LINUX Score: 68 20 109.202.202.202, 80 INIT7CH Switzerland 2->20 22 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->22 24 2 other IPs or domains 2->24 26 Malicious sample detected (through community Yara rule) 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 Yara detected Mirai 2->30 32 Sample is packed with UPX 2->32 8 kt1.elf 2->8         started        10 systemd install 2->10         started        12 systemd find 2->12         started        14 2 other processes 2->14 signatures3 process4 process5 16 kt1.elf 8->16         started        process6 18 kt1.elf 16->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-09 04:59:11 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7q6prheti6wzi6n7tm6hy3r4zaaxo65r3hnzjyrzu2hl4t57yjdq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai botnet discovery linux upx
Link:
https://tria.ge/reports/250509-fmfkqaskv7/
Behaviour
Reads runtime system information
Changes its process name
Mirai
Mirai family
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e4f451ba-111c-469c-acea-209af44d5d63
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 fc3cf89c9347ad9479bf9b3c7c6e3cc801777bb1d9db94e239a68ebe4fbfc247

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3531148/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3532680/

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