MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f. 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


Threat unknown


Vendor detections: 8


Intelligence 8 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f
SHA3-384 hash: 09bea048cd15f3ef05c3aeab21307cd54a166bbf64943ea0df8259a743b8964c4d61e5d3d96c765e54234e692d4ccc9e
SHA1 hash: 388297f782e71785ee90b4254e6e8868f2f8755c
MD5 hash: 8a709616e3437ff61bd287764e97f211
humanhash: river-stream-delta-tennis
File name:kirk.i586
Download: download sample
File size:96'356 bytes
First seen:2026-02-27 18:23:14 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:6NeeWfIpE1A1Mt8lmqMqdvq8jGyQ73eqzL9jjmWSDV0G:YeEI8lmq/NpjGx7Oq3gvi
TLSH T1BE93F886BB43CFF3E95315F112F75B354A32FC3A4C26DA81E324BCE59A525C0A616368
telfhash t15751c7f75ea609edb390ac48c71e1b573a0a9b771560317641a3ace123f7ac1907bc35
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
30
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
46
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
Link:
https://opentip.kaspersky.com/99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/da73b6ab-3a68-49dc-b5c9-70728eeac1d8
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1876195
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1876195 Sample: kirk.i586.elf Startdate: 27/02/2026 Architecture: LINUX Score: 76 20 64.89.163.109, 33358, 33360, 33362 DIXIE-NETUS United States 2->20 22 daisy.ubuntu.com 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Okiru 2->28 30 Yara detected Mirai 2->30 9 kirk.i586.elf 2->9         started        11 python3.8 dpkg 2->11         started        signatures3 process4 process5 13 kirk.i586.elf 9->13         started        process6 15 kirk.i586.elf 13->15         started        signatures7 32 Sample deletes itself 15->32 18 kirk.i586.elf 15->18         started        process8
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f/
Threat name:
Linux.Trojan.Multiverze
Create hunting rule
Status:
Malicious
First seen:
2026-02-27 16:57:00 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 36 (27.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=thvbk47noeqbas6xi3vky7u2vxt5g2mawocvraopr4c2i2emqzpq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery linux
Link:
https://tria.ge/reports/260227-w1nq9agw5c/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Deletes itself
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:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:Linux_Generic_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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

elf 99ea1573ed7120104bd746eaac7e9aade7d36980b3855881cf8f05a4688c865f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3787019/
  
Delivery method
Distributed via web download

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