MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f. 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: 11


Intelligence 11 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f
SHA3-384 hash: 8696fb250dc007c4705494919810f9a6f8e71feab9fb61f15a20585ce358c923aadc0358c10ed19a7a2ce7995fda2db7
SHA1 hash: e63f7c28f14e4f1b61e63fec81278a8a7d0f1926
MD5 hash: 31a0e2e5b1df12f4d77c6a1c2a14c570
humanhash: equal-london-oven-fish
File name:kurayami.arm5
Download: download sample
Signature Mirai
Create hunting rule
File size:84'440 bytes
First seen:2026-04-01 10:15:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:K4MlK1EKuGZDErmKuehgWr/iFZkcP92RolA8D/DO27jrYp:K4MlK+KuGKrGWbiFV21ar7jkp
TLSH T139831B82BCD2951AC6D4277EA62E719D3361A3E0C2CB3513DCA74B15378729B0F27B84
telfhash t16ef05c00fe794a5888db9a30ed9c07a5d812221661664b11dfa4cae0883f018f30de9d
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 5c067ef70261e6ea744eb8bcedf95e8c52ad89ab1a1f0155e349b05207385da7
File size (compressed) :34'600 bytes
File size (de-compressed) :84'440 bytes
Format:linux/arm
Packed file: 5c067ef70261e6ea744eb8bcedf95e8c52ad89ab1a1f0155e349b05207385da7

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135897-0
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Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
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Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/69ccf07090759d6205c09309/reports/88c013f3-bbdf-4cad-a08b-dae055809491/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-01T07:11:00Z UTC
Last seen:
2026-04-01T07:19:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/743dd23f-d6f1-4ace-b580-11f5be200fca
Behavior Graph:
Download SVG
%3 guuid=48273bd9-1600-0000-319c-72b0cb0d0000 pid=3531 /usr/bin/sudo guuid=72491fdb-1600-0000-319c-72b0d30d0000 pid=3539 /tmp/sample.bin guuid=48273bd9-1600-0000-319c-72b0cb0d0000 pid=3531->guuid=72491fdb-1600-0000-319c-72b0d30d0000 pid=3539 execve
Malware family:
Mirai
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b8639049-c547-49df-833b-0c59d30d9884
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1891981
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-04-01 10:16:23 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvdgzdir6yyyihvd5zk4kbgapp3vsuelxvlm56n3jgmhiuwakwpq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/260401-mawvhaes2v/
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/b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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: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

File information

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

Web download

Mirai

elf 5c067ef70261e6ea744eb8bcedf95e8c52ad89ab1a1f0155e349b05207385da7

Mirai

elf b5466c8d11f631841ea3ee55c504c07bf759508bbd56cef9bb49987452c0559f

(this sample)

  
Dropped by
SHA256 5c067ef70261e6ea744eb8bcedf95e8c52ad89ab1a1f0155e349b05207385da7
  
URLhaus
https://urlhaus.abuse.ch/url/3808203/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 2a35891988ee136e6b61ccaf11401e84

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