MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f
SHA3-384 hash: a90cb20cc37c193c4beb54a52e9ed1be4567a05a01fd08e26eb48946d58f6274444c804fd40c89152008395feae51376
SHA1 hash: 2143215c9fb262c0534b091aa20e444a4544d497
MD5 hash: ed8ef7c8910e85a9478a466feeafb449
humanhash: july-oscar-colorado-nine
File name:m9x7k2v8b3.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:41'712 bytes
First seen:2025-12-31 19:21:14 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:EDmGpitMI37xBMI5onrysQO8gvsByX9Axh/WJWTWpGTAhzaknGsQhnbcuyD7UGQP:8mGctDFgCRgNXWxh/W0CGozaqenouy8d
TLSH T1D313F25E01850F44D9FF4275BE6FAC868304C2192EA94E69F7C9E42466B3B7CAF047C6
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
File size (compressed) :41'712 bytes
File size (de-compressed) :87'380 bytes
Format:linux/i386
Unpacked file: 752d92a2b03f297ffef085a41387a57e3428084321b4e530c29a98de19583cae

Intelligence

File Origin
# of uploads :
1
# of downloads :
45
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/1d3029cb-df8a-4482-96d2-9d273d406d89/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-31T16:33:00Z UTC
Last seen:
2025-12-31T17:18:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw
Link:
https://opentip.kaspersky.com/b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/297d1549-df65-416d-85ec-5fcec329d3ec
Behavior Graph:
Download SVG
%3 guuid=c96ee233-1b00-0000-5b7c-d053990c0000 pid=3225 /usr/bin/sudo guuid=0c51db35-1b00-0000-5b7c-d0539b0c0000 pid=3227 /tmp/sample.bin net guuid=c96ee233-1b00-0000-5b7c-d053990c0000 pid=3225->guuid=0c51db35-1b00-0000-5b7c-d0539b0c0000 pid=3227 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=0c51db35-1b00-0000-5b7c-d0539b0c0000 pid=3227->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=e47d7b36-1b00-0000-5b7c-d0539d0c0000 pid=3229 /tmp/sample.bin guuid=0c51db35-1b00-0000-5b7c-d0539b0c0000 pid=3227->guuid=e47d7b36-1b00-0000-5b7c-d0539d0c0000 pid=3229 clone guuid=e52e5a63-1c00-0000-5b7c-d0532a0f0000 pid=3882 /tmp/sample.bin guuid=0c51db35-1b00-0000-5b7c-d0539b0c0000 pid=3227->guuid=e52e5a63-1c00-0000-5b7c-d0532a0f0000 pid=3882 clone guuid=74806063-1c00-0000-5b7c-d0532b0f0000 pid=3883 /tmp/sample.bin net send-data zombie guuid=0c51db35-1b00-0000-5b7c-d0539b0c0000 pid=3227->guuid=74806063-1c00-0000-5b7c-d0532b0f0000 pid=3883 clone guuid=143d8436-1b00-0000-5b7c-d0539f0c0000 pid=3231 /tmp/sample.bin guuid=e47d7b36-1b00-0000-5b7c-d0539d0c0000 pid=3229->guuid=143d8436-1b00-0000-5b7c-d0539f0c0000 pid=3231 clone guuid=76538a36-1b00-0000-5b7c-d053a00c0000 pid=3232 /tmp/sample.bin dns net send-data zombie guuid=e47d7b36-1b00-0000-5b7c-d0539d0c0000 pid=3229->guuid=76538a36-1b00-0000-5b7c-d053a00c0000 pid=3232 clone guuid=76538a36-1b00-0000-5b7c-d053a00c0000 pid=3232->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 38B 852eada3-51ac-5275-909a-778490b5e6b0 play.mclighthouse.ir:6742 guuid=76538a36-1b00-0000-5b7c-d053a00c0000 pid=3232->852eada3-51ac-5275-909a-778490b5e6b0 send: 10B guuid=74806063-1c00-0000-5b7c-d0532b0f0000 pid=3883->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 975B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=74806063-1c00-0000-5b7c-d0532b0f0000 pid=3883->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b86d83fb-7fa4-49ff-9a3e-5012a4030eb9
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1842805
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1842805 Sample: m9x7k2v8b3.i686.elf Startdate: 31/12/2025 Architecture: LINUX Score: 60 31 Malicious sample detected (through community Yara rule) 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 Sample is packed with UPX 2->35 9 m9x7k2v8b3.i686.elf 2->9         started        11 dash rm 2->11         started        13 dash rm 2->13         started        15 python3.8 dpkg 2->15         started        process3 process4 17 m9x7k2v8b3.i686.elf 9->17         started        19 m9x7k2v8b3.i686.elf 9->19         started        21 m9x7k2v8b3.i686.elf 9->21         started        process5 23 m9x7k2v8b3.i686.elf 17->23         started        25 m9x7k2v8b3.i686.elf 17->25         started        process6 27 m9x7k2v8b3.i686.elf 23->27         started        process7 29 m9x7k2v8b3.i686.elf 27->29         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-31 18:24:49 UTC
File Type:
ELF32 Little (Exe)
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wxkenu4zd6zk3o36ggr6znzts4yygnr7t35qp4zoyjzhf2bvsu7q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251231-x2zetads8c/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5c29c176-252d-4bd2-8437-dba656e80f54
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/b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f

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: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 b5d446d3991fb2adbb7e31a3ecb733973183363f9efb07f32ec27272e835953f

(this sample)

Mirai

elf 752d92a2b03f297ffef085a41387a57e3428084321b4e530c29a98de19583cae

  
URLhaus
https://urlhaus.abuse.ch/url/3747242/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3746638/
  
Dropping
SHA256 752d92a2b03f297ffef085a41387a57e3428084321b4e530c29a98de19583cae
  
Dropping
MD5 3b7ee89f02cfbfad4ba4b854831d756e

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