MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d
SHA3-384 hash: fa7b85d2fc025cc8ee1e5fbe603e21ec03eea5d0da50e86ed3f26dab72d64d27d540d34e112aba392130e064b1aa3012
SHA1 hash: fb27467feb25b3bcebcfe5f1eb55afc733c85916
MD5 hash: a2adcc0c250fe37e04f39b38fbd49653
humanhash: maine-happy-winter-nitrogen
File name:windy.ppc
Download: download sample
Signature Mirai
Create hunting rule
File size:40'132 bytes
First seen:2026-05-18 07:36:51 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:Lj7Jzmzi7ygo5RGtRTd2ZrvAU0lgySOTPDRm2fvpq7N4uVcqgw09t:Um7y9rGT8T0hSaPDbq7N4u+qgw09t
TLSH T13F030258E3502C35F6E37F71A2B99EC8B7E4C7A6B335AFC0A616C7413522814C126EC1
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) :40'132 bytes
File size (de-compressed) :87'736 bytes
Format:linux/ppc32
Unpacked file: 441da71b1d04228b12f05417d3ccf87734bae3be2fd87240d81067259eedb678

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/dd7b21de-f129-43f5-8f5f-c957f6e887f3/
Detection(s):
Unix.Trojan.Mirai-9936831-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sends data to a server
Connection attempt
Opens a port
Runs as daemon
DNS request
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a0ac1bbefbd399b39b63249/reports/04951b3f-4e6f-40b5-9df3-31fc4b4dbd73/overview
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-05-17T17:41:00Z UTC
Last seen:
2026-05-17T18:07:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/12cee691-0870-4982-a815-b65b3a489bf1
Behavior Graph:
Download SVG
%3 guuid=16149fc9-1c00-0000-fad2-7ed2590e0000 pid=3673 /usr/bin/sudo guuid=34b8e2cd-1c00-0000-fad2-7ed25f0e0000 pid=3679 /tmp/sample.bin guuid=16149fc9-1c00-0000-fad2-7ed2590e0000 pid=3673->guuid=34b8e2cd-1c00-0000-fad2-7ed25f0e0000 pid=3679 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d9ed8036-8b3a-4f11-abf5-9ac715fc6261
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-05-17 20:44:29 UTC
File Type:
ELF32 Big (Exe)
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j35jopibet4uhtcyl3aa3mthrpgpurr75m2tiuxyka2ssw6oqe6q._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
linux upx
Link:
https://tria.ge/reports/260518-jf54kscy7n/
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/4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d

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: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: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 4efa973d0124f943cc585ec00db2678bccfa463feb353452f85035295bce813d

(this sample)

Mirai

elf 441da71b1d04228b12f05417d3ccf87734bae3be2fd87240d81067259eedb678

  
URLhaus
https://urlhaus.abuse.ch/url/3849251/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 441da71b1d04228b12f05417d3ccf87734bae3be2fd87240d81067259eedb678
  
Dropping
MD5 f42817f62b6c4d18ce851f95b91f1a7d
  
URLhaus
https://urlhaus.abuse.ch/url/3849539/

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