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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bf81bfb42e94ed77ca3a2fa22163d41d238825d6d35c52d9601236c9cd64204. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5bf81bfb42e94ed77ca3a2fa22163d41d238825d6d35c52d9601236c9cd64204
SHA3-384 hash: 3a966996bc22930d76888f4034c957fc4f0266248a9242224cb619a3af996ec7300530306168a93f109c83dc64d36bf8
SHA1 hash: 81b70b05697fe5d92b60c80bafdf67b2592d45be
MD5 hash: c2634a0f7f61b307f091a38394ebb9d3
humanhash: kilo-south-maryland-steak
File name:cwlfkwnt.armv6
Download: download sample
Signature Mirai
Create hunting rule
File size:1'013'303 bytes
First seen:2026-09-24 23:04:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 24576:0njsG7Gt/l3w+85fEylUkzQ9sXbU6k7hU/hGnJ6:0La/mbUYs6U6k7hUAJ6
TLSH T18B253B54F8909F63C5D46B7AF65E82A833234779C3E7720699148B383BD7A1F0B3A641
telfhash t113a002171895c61d573b9f189cea074610831c33fc6d3d6a5e5cdf558525505075ccaf
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Agent-7158340-0
Create hunting rule

Unix.Trojan.Mirai-10004218-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Locks files
Connection attempt
Collects information on the CPU
Creating a file in the %temp% directory
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm base64 bash evasive gcc javac lolbin rust
Link:
https://www.filescan.io/uploads/6ab5acc0e610b2cdedcd7c57/reports/4b76145d-7874-459b-a6ff-210d68e6f1b3/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-09-24T21:01:00Z UTC
Last seen:
2026-09-24T23:06:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/5bf81bfb42e94ed77ca3a2fa22163d41d238825d6d35c52d9601236c9cd64204/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8b691e7b-3793-4f7e-acbe-f1658b934104
Behavior Graph:
Download SVG
%3 guuid=dd3e87c4-1c00-0000-d486-7014e4080000 pid=2276 /usr/bin/sudo guuid=38ab97ca-1c00-0000-d486-7014e8080000 pid=2280 /tmp/sample.bin guuid=dd3e87c4-1c00-0000-d486-7014e4080000 pid=2276->guuid=38ab97ca-1c00-0000-d486-7014e8080000 pid=2280 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bfa224ac-b227-4751-9bd1-c74294e41ac8
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5bf81bfb42e94ed77ca3a2fa22163d41d238825d6d35c52d9601236c9cd64204
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5bf81bfb42e94ed77ca3a2fa22163d41d238825d6d35c52d9601236c9cd64204/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-09-24 23:05:52 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lp4bx62c5fhno7fdul5cefr5ihjdras5nu24klmwaerwzhgwiica._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
antivm defense_evasion discovery
Link:
https://tria.ge/reports/260924-2243hsywgx/
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Checks CPU configuration
Reads CPU attributes
Checks hardware identifiers (DMI)
Enumerates running processes
Reads MAC address of network interface
File and Directory Permissions Modification
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:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:ELF_Mirai
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Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:enterpriseapps2
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Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:Hunt_DVR_Exploit_CommandInjection
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Author:Serhii Kocherhan
Description:Detects common shell command injection signatures and payloads associated with DVR/NVR exploitation
Rule name:iot_req_metachar
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Rule name:ldpreload
Create hunting rule
Author:xorseed
Reference:https://stuff.rop.io/
Rule name:linux_generic_ipv6_catcher
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Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:linux_generic_irc_catcher
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Author:@_lubiedo
Description:Find new ELF IRC samples
Rule name:malwareelf55503
Create hunting rule
Rule name:MIRAI_OHSHIT_payload
Create hunting rule
Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:test_rule_vldslv
Create hunting rule
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 5bf81bfb42e94ed77ca3a2fa22163d41d238825d6d35c52d9601236c9cd64204

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3920171/
  
Delivery method
Distributed via web download

Comments