MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bfa5f6361f7f78705df33f80dc08cb10a62423cdb1f4c07f536da18e20ade75. 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 6 File information Comments
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SHA256 hash: 1bfa5f6361f7f78705df33f80dc08cb10a62423cdb1f4c07f536da18e20ade75
SHA3-384 hash: 6a0b6a0c9e013d8dfa4fe77f0b84ed7f2940f185929830644bc6762bae3db8fd228ff046cf8ce3416ae8acba74d21ce8
SHA1 hash: 35b1fc25dc38a3b9d576b625bc354b59791c4f49
MD5 hash: c224efebdc7bdfa6184f65884a7420a6
humanhash: eight-triple-network-fanta
File name:katrina
Download: download sample
Signature Mirai
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File size:138'177 bytes
First seen:2025-10-13 10:14:37 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:jHq0Td/pl/js5+hNaW5RAhi5Sviv7yTulsT8EJEmG/je8ZuR5DTMMz:20R/LQA3TAc84yK48DmG/je8ZuR5DTMa
TLSH T120D32893F900DFBAF40BE6B604C34625B630FF664E531626721739A3AE761D42827F49
telfhash t1a94187129a7857141ff39928ecbd86730512962357353eb1af36c1cc54210b0e939d5f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
126
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30541.LC.UNOFFICIAL
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Unix.Trojan.Mirai-6981989-0
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Unix.Dropper.Mirai-7139229-0
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Unix.Downloader.Mirai-7340346-0
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Unix.Trojan.Gafgyt-7782058-0
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Unix.Trojan.Mirai-9940650-0
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Unix.Trojan.Mirai-10018298-0
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Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gcc lolbin obfuscated remote threat
Link:
https://www.filescan.io/uploads/68ecd32e4f3013c55e4be6c2/reports/8f604b53-34a7-4f74-b6c7-e7007872dd3e/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-10-13T08:29:00Z UTC
Last seen:
2025-10-13T09:11:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/1bfa5f6361f7f78705df33f80dc08cb10a62423cdb1f4c07f536da18e20ade75/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8d3a7c43-e132-4df2-864d-ab59187d9696
Behavior Graph:
Download SVG
%3 guuid=148fe89b-1a00-0000-a255-4d7b5b0b0000 pid=2907 /usr/bin/sudo guuid=acba509e-1a00-0000-a255-4d7b630b0000 pid=2915 /tmp/sample.bin guuid=148fe89b-1a00-0000-a255-4d7b5b0b0000 pid=2907->guuid=acba509e-1a00-0000-a255-4d7b630b0000 pid=2915 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/dba0d792-5423-4c26-ae2f-09143ada9f6b
Result
Threat name:
Gafgyt
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Detection:
malicious
Classification:
spre.troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1793946
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Contains symbols with names commonly found in malware
Multi AV Scanner detection for submitted file
Opens /proc/net/* files useful for finding connected devices and routers
Terminates several processes with shell command 'killall'
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1793946 Sample: katrina.elf Startdate: 13/10/2025 Architecture: LINUX Score: 80 45 176.65.139.133, 33120, 33122, 33124 PALTEL-ASPALTELAutonomousSystemPS Germany 2->45 47 daisy.ubuntu.com 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected Gafgyt 2->53 55 2 other signatures 2->55 9 katrina.elf 2->9         started        12 python3.8 dpkg 2->12         started        signatures3 process4 signatures5 57 Opens /proc/net/* files useful for finding connected devices and routers 9->57 14 katrina.elf 9->14         started        16 katrina.elf 9->16         started        18 katrina.elf 9->18         started        process6 process7 20 katrina.elf sh 14->20         started        22 katrina.elf sh 14->22         started        24 katrina.elf sh 14->24         started        28 5 other processes 14->28 26 katrina.elf 16->26         started        process8 30 sh killall 20->30         started        33 sh killall 22->33         started        35 sh killall 24->35         started        37 sh killall 28->37         started        39 sh killall 28->39         started        41 sh killall 28->41         started        43 2 other processes 28->43 signatures9 59 Terminates several processes with shell command 'killall' 30->59
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/1bfa5f6361f7f78705df33f80dc08cb10a62423cdb1f4c07f536da18e20ade75
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1bfa5f6361f7f78705df33f80dc08cb10a62423cdb1f4c07f536da18e20ade75/
Threat name:
Linux.Backdoor.Gafgyt
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Status:
Malicious
First seen:
2025-10-13 10:29:34 UTC
File Type:
ELF32 Big (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dp5f6y3b673yobo7gp4a3qemwefgeqr43mpuyb7vg3nbryqk3z2q._file
Result
Malware family:
gafgyt
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Score:
  10/10
Tags:
family:gafgyt linux
Link:
https://tria.ge/reports/251013-me4qxadr9z/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3949c431-7fb0-4e3c-98af-c5ad9b0bbc65
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:ach_202503_elf_Mirai
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Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:enterpriseapps2
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Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Gafgyt_Generic
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Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mal_LNX_Gafgyt_Botnet_ELF
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Author:Phatcharadol Thangplub
Description:Use to detect Gafgyt botnet, and there variants.
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:unixredflags3
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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 1bfa5f6361f7f78705df33f80dc08cb10a62423cdb1f4c07f536da18e20ade75

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3576539/
  
Delivery method
Distributed via web download

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