MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39cd41e0e918c53ef478a55b4f1a8950825feabc6f0ae562fa7275d04e1cb828. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 39cd41e0e918c53ef478a55b4f1a8950825feabc6f0ae562fa7275d04e1cb828
SHA3-384 hash: a1fc10dc6b81bac67641813a24fb3fbb97b81e37f632c7e9c6b0b6fffe529f56b77e06c13ad145bce726684205589732
SHA1 hash: e59eb0f2fbec4d591244b92d531a9c32d13bef63
MD5 hash: f7e9aad038d368547a636290d62606fc
humanhash: hotel-zebra-jersey-violet
File name:kworker
Download: download sample
Signature Mirai
Create hunting rule
File size:61'412 bytes
First seen:2026-01-14 19:15:22 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:hEGi/hXpziWfvutauxJajEhzWDC/OdQlFH4u+qgw09+:heHiWfvrMajEhCDCmdQlZ4u+qgwL
TLSH T1675302A9F18E8D82CF2FCD704BB090A53CEADD9F3705CD611BE7AE2394154205B118EA
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) :61'412 bytes
File size (de-compressed) :166'748 bytes
Format:linux/ppc32
Unpacked file: cee1c71d5ecff8e8e71e006918280dc72766bfba8aef0256eb0ac8b4d9bea692

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/01fe05d5-7ad9-4c4b-aa0e-2222590edaa9/
Detection(s):
Unix.Trojan.Mirai-9936831-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/6967eb64b5214ecba5efbd78/reports/729facce-56da-4869-b653-c9c4295f3ea0/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5de537e1-8b0d-4f6f-8815-70b59b93510a
Behavior Graph:
Download SVG
%3 guuid=24289258-1b00-0000-6742-e402df030000 pid=991 /usr/bin/sudo guuid=e1ab505a-1b00-0000-6742-e402e0030000 pid=992 /tmp/sample.bin guuid=24289258-1b00-0000-6742-e402df030000 pid=991->guuid=e1ab505a-1b00-0000-6742-e402e0030000 pid=992 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/1c62bd8b-0db0-4ad3-8251-2bfa86d3766e
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1850855
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1850855 Sample: kworker.elf Startdate: 14/01/2026 Architecture: LINUX Score: 76 19 143.20.185.225, 58918, 80 LANCAMANTOANISERVICOSDEINFORMATICALTDA-MEBR United States 2->19 21 daisy.ubuntu.com 2->21 23 Malicious sample detected (through community Yara rule) 2->23 25 Antivirus / Scanner detection for submitted sample 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 2 other signatures 2->29 7 dash rm kworker.elf 2->7         started        9 dash rm 2->9         started        11 dash cat 2->11         started        13 8 other processes 2->13 signatures3 process4 process5 15 kworker.elf 7->15         started        17 kworker.elf 7->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/39cd41e0e918c53ef478a55b4f1a8950825feabc6f0ae562fa7275d04e1cb828
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/39cd41e0e918c53ef478a55b4f1a8950825feabc6f0ae562fa7275d04e1cb828/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-14 19:11:05 UTC
File Type:
ELF32 Big (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hhgudyhjddct55dyuvnu6gujkcbf72v4n4fokyx2oj25atq4xaua._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
linux upx
Link:
https://tria.ge/reports/260114-xyr7bscx8g/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9936831-0
YARA:
n/a
Link:
https://app.threat.zone/submission/4384141b-955e-4e1a-bed7-e4ecd1854855
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: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 39cd41e0e918c53ef478a55b4f1a8950825feabc6f0ae562fa7275d04e1cb828

(this sample)

Mirai

elf cee1c71d5ecff8e8e71e006918280dc72766bfba8aef0256eb0ac8b4d9bea692

  
URLhaus
https://urlhaus.abuse.ch/url/3758020/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3758045/
  
URLhaus
https://urlhaus.abuse.ch/url/3758053/
  
Dropping
SHA256 cee1c71d5ecff8e8e71e006918280dc72766bfba8aef0256eb0ac8b4d9bea692
  
Dropping
MD5 18421f6cf5f1c6f364b787377743bc92

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