MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81527c5e4f0a05dfa4c8a3567bacca8496241181872d6aeeeeecd7850cfd3f3e. 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 17 File information Comments
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SHA256 hash: 81527c5e4f0a05dfa4c8a3567bacca8496241181872d6aeeeeecd7850cfd3f3e
SHA3-384 hash: f17754a00920ed94cc2c02119e48894798e1798b4a61fc76ae767100ce8da0998e5cbd896ec193417655c4160fb0a833
SHA1 hash: 7f32c262283744292169415dfb6bc7c09665482f
MD5 hash: 30c28d132c1f021bc8fb84681ab9ec2d
humanhash: jupiter-ack-aspen-nuts
File name:kaitor.m68k
Download: download sample
Signature Mirai
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File size:202'874 bytes
First seen:2025-07-11 15:49:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:R+nayZeGzylEMzhj/FQfuwu5pEAcpvv6HGjUXYg5PS4zU:R+aSTcQWwuYLv6HGjUXYg5PJU
TLSH T12D144A93F901EEB6F40BA63605D30B34B231BB611A935662730B396ADD3A3D5182FF45
telfhash t19d51774698798e3d3f721c549c6c6bb2101eab2371663eb1bf79c48c4632092f16ac4b
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
16
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28962.LCM.UNOFFICIAL
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Sanesecurity.Malware.28961.LCM.UNOFFICIAL
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Sanesecurity.Malware.29524.LC.UNOFFICIAL
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Unix.Trojan.Gafgyt-6981154-0
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Unix.Trojan.Tsunami-6981155-0
Create hunting rule

Unix.Trojan.Mirai-6981158-0
Create hunting rule

Unix.Trojan.Tsunami-6981163-0
Create hunting rule

Unix.Trojan.Mirai-6981989-0
Create hunting rule

Unix.Dropper.Mirai-7135868-0
Create hunting rule

Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Trojan.Mirai-7135981-0
Create hunting rule

Unix.Dropper.Mirai-7135987-0
Create hunting rule

Unix.Dropper.Mirai-7136034-0
Create hunting rule

Unix.Dropper.Mirai-7136072-0
Create hunting rule

Unix.Dropper.Mirai-7136105-0
Create hunting rule

Unix.Dropper.Mirai-7139223-0
Create hunting rule

Unix.Trojan.Mirai-7139482-0
Create hunting rule

Unix.Downloader.Mirai-7340346-0
Create hunting rule

Unix.Trojan.Gafgyt-7782058-0
Create hunting rule

Unix.Trojan.Mirai-9886461-0
Create hunting rule

Unix.Trojan.Mirai-9940650-0
Create hunting rule

Unix.Dropper.Mirai-9977145-0
Create hunting rule

Unix.Trojan.Mirai-10018298-0
Create hunting rule

Unix.Trojan.Mirai-10027280-0
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Unix.Trojan.Mirai-5607483-0
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Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=687132e4900df8e7f869e27blinux22vpnfull_triage
Tags:
n/a
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc lolbin mirai obfuscated obfuscated remote
Link:
https://www.filescan.io/uploads/687132d480b46be06ea02800/reports/6e5536fa-39fd-4087-a247-b7a07c923919/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4eb6eb55-dded-44ad-82d4-aa55352bc3d0
Behavior Graph:
Download SVG
%3 guuid=27d72ac8-1800-0000-aac3-a057eb050000 pid=1515 /usr/bin/sudo guuid=713137ca-1800-0000-aac3-a057f1050000 pid=1521 /tmp/sample.bin guuid=27d72ac8-1800-0000-aac3-a057eb050000 pid=1515->guuid=713137ca-1800-0000-aac3-a057f1050000 pid=1521 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8a09f073-f8bd-44bc-bea6-4a239e3f4a69
Result
Threat name:
Gafgyt, Mirai
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Detection:
malicious
Classification:
troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1734006
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses IRC for communication with a C&C
Uses known network protocols on non-standard ports
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1734006 Sample: kaitor.m68k.elf Startdate: 11/07/2025 Architecture: LINUX Score: 100 32 146.145.212.27 WINDSTREAMUS United States 2->32 34 209.219.149.87 WINDSTREAMUS United States 2->34 36 99 other IPs or domains 2->36 38 Suricata IDS alerts for network traffic 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 6 other signatures 2->44 10 kaitor.m68k.elf 2->10         started        12 python3.8 dpkg 2->12         started        signatures3 process4 process5 14 kaitor.m68k.elf 10->14         started        process6 16 kaitor.m68k.elf 14->16         started        18 kaitor.m68k.elf 14->18         started        20 kaitor.m68k.elf 14->20         started        process7 22 kaitor.m68k.elf 16->22         started        process8 24 kaitor.m68k.elf 22->24         started        26 kaitor.m68k.elf 22->26         started        28 kaitor.m68k.elf 22->28         started        30 3 other processes 22->30
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81527c5e4f0a05dfa4c8a3567bacca8496241181872d6aeeeeecd7850cfd3f3e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81527c5e4f0a05dfa4c8a3567bacca8496241181872d6aeeeeecd7850cfd3f3e/
Threat name:
Linux.Backdoor.Tsunami
Create hunting rule
Status:
Malicious
First seen:
2025-07-10 13:39:22 UTC
File Type:
ELF32 Big (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qfjhyxspbic57jgiunlhxlgkqslciembq4wwv3xo5tlykdh5h47a._file
Result
Malware family:
kaiten
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Score:
  10/10
Tags:
family:kaiten linux
Link:
https://tria.ge/reports/250711-s97c6san3s/
Verdict:
Malicious
Tags:
botnet mirai backdoor kaiten trojan tsunami Unix.Trojan.Gafgyt-6981154-0
YARA:
MAL_ELF_LNX_Mirai_Oct10_1 Kaiten Linux_Trojan_Mirai_0bce98a2 Linux_Trojan_Mirai_95e0056c Linux_Trojan_Tsunami_8a11f9be Linux_Trojan_Tsunami_ad60d7e8
Link:
https://app.threat.zone/submission/683bf397-baf1-4555-b32b-e75c05551563
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/81527c5e4f0a05dfa4c8a3567bacca8496241181872d6aeeeeecd7850cfd3f3e

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:botnet_plaintext_c2
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Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:CVE_2017_17215
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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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:linux_generic_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_95e0056c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Tsunami_8a11f9be
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Tsunami_ad60d7e8
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:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
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Author:malware-lu
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:setsockopt
Create hunting rule
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 81527c5e4f0a05dfa4c8a3567bacca8496241181872d6aeeeeecd7850cfd3f3e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3581478/
  
Delivery method
Distributed via web download

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