MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775. 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: b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775
SHA3-384 hash: 4e54a0dfa00e56658f3dca8ff53e442d54f5eb733a648c9ee76d5372a45fd9b29027409e6bb64ed19a3e60d46e848f59
SHA1 hash: 016446eb500e000c39e208b8d3338d651a3580e2
MD5 hash: 8f29ed795d6eebcc3c4d55e3dea1a0a0
humanhash: fillet-quebec-lactose-juliet
File name:executor.sh4
Download: download sample
Signature Mirai
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File size:151'168 bytes
First seen:2025-11-27 10:40:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:oElbBIznee0PIGtK73ZYwQcmiJDcmWlsPCJa3aR:oExHrSZYwQzzl9Ja3aR
TLSH T1BFE37B22C964AE98C624C575F021FB791B539E5685875FBA1AABCB708043DCCFE053B8
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
145
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
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SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
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Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135897-0
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Unix.Dropper.Mirai-7135901-0
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Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
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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.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7138377-0
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Unix.Trojan.Mirai-7674518-0
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Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-9441505-0
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Unix.Trojan.Generic-9910198-0
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Unix.Trojan.Generic-9910199-0
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Unix.Dropper.Mirai-10007027-0
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Unix.Trojan.Mirai-10009361-0
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Unix.Trojan.Mirai-10042712-0
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Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/69282acbb4ec9fbc9d0dc645/reports/672b8a28-be3b-41a8-8d68-133d5433a1c8/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-27T07:47:00Z UTC
Last seen:
2025-11-27T11:29:00Z 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/b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/49a658fd-48c8-40dc-a81a-0e9cd18539a0
Result
Threat name:
Gafgyt
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Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1821673
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1821673 Sample: executor.sh4.elf Startdate: 27/11/2025 Architecture: LINUX Score: 64 26 169.254.169.254, 80 USDOSUS Reserved 2->26 28 143.20.185.245, 51550, 51552, 6769 LANCAMANTOANISERVICOSDEINFORMATICALTDA-MEBR United States 2->28 30 4 other IPs or domains 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected Gafgyt 2->36 8 executor.sh4.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 process4 process5 16 executor.sh4.elf 8->16         started        18 executor.sh4.elf 8->18         started        20 executor.sh4.elf 8->20         started        process6 22 executor.sh4.elf 16->22         started        24 executor.sh4.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775
Threat name:
Linux.Worm.Mirai
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Status:
Malicious
First seen:
2025-11-27 10:41:16 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xh72sdazvh6oxczgljniirvjoo5r7cwhzkslwsfp6ztwjh5lo52q._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251127-mq7lyavjhw/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7100807-0
YARA:
n/a
Link:
https://app.threat.zone/submission/e8be01be-286f-4e76-bf3b-08d828a5dccb
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/b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775

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
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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:linux_generic_ipv6_catcher
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Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_XORed_Mozilla_Oct19
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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
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Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 b9ffa90c19a9fceb8b265a5a8446a973bb1f8ac7caa4bb48aff667649fab7775

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3717096/
  
Delivery method
Distributed via web download

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