MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d. 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: 4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d
SHA3-384 hash: 88cc67a2efe2debd7afec5157640c0d783f30c7ebe50598a5106f88f87c20641f5cae70e1ee59c8fe83b0a370cd8ab67
SHA1 hash: cef86daaf76ae8f52561602b56b4279649ed1bca
MD5 hash: e816d3bd8af1c5dce5cf3a8b69c9e095
humanhash: papa-hamper-uniform-crazy
File name:kurayami.ppc
Download: download sample
Signature Mirai
Create hunting rule
File size:67'684 bytes
First seen:2026-03-30 06:58:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:VjT9TY4ATMQiJ9LEf2q33MSwnI/FPZ7TKMMkqsLfZCkljeV2E4u+qgw09+:HY4bLPLEf933Dt/RZ7TNZwV74u+qgwn
TLSH T138630298C711C9CBCEDB6DF40E547BF1A3326D08A57619D2B379878067E6E0A520ADC4
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 adliwahid
Tags:mirai UPX
File size (compressed) :67'684 bytes
File size (de-compressed) :184'024 bytes
Format:linux/ppc32
Unpacked file: a5125ddbd30e58254594f5aaa19b65c60fca2b2f7d78aca013dbb8a6aac8db9e

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Detection(s):
Unix.Trojan.Mirai-9936831-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Connection attempt
Runs as daemon
Sends data to a server
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade mirai packed threat upx
Link:
https://www.filescan.io/uploads/69ca1f9de2df9aa488bd90c1/reports/1f9d6b4a-65a9-4210-b6b4-5aa5f82e8466/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-03-29T23:14:00Z UTC
Last seen:
2026-03-30T18:31:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/340c65ba-5726-4063-b613-fbbf48b232c1
Behavior Graph:
Download SVG
%3 guuid=821e15bb-1a00-0000-c986-0591cc0a0000 pid=2764 /usr/bin/sudo guuid=3dcc38be-1a00-0000-c986-0591d40a0000 pid=2772 /tmp/sample.bin guuid=821e15bb-1a00-0000-c986-0591cc0a0000 pid=2764->guuid=3dcc38be-1a00-0000-c986-0591d40a0000 pid=2772 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/18a88395-6ca9-4acb-b19c-a484e8757f4c
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-03-30 04:09:55 UTC
File Type:
ELF32 Big (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j34k3hhwglhcnprpkzjgfxwtuiuefrmgge5bnu4o4r3x4x4f7fwq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
linux upx
Link:
https://tria.ge/reports/260330-hr6ntaaz2m/
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/4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d

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 4ef8ad9cf632ce26be2f565262ded3a22842c586313a16d38ee4777e5f85f96d

(this sample)

Mirai

elf a5125ddbd30e58254594f5aaa19b65c60fca2b2f7d78aca013dbb8a6aac8db9e

  
Dropping
SHA256 a5125ddbd30e58254594f5aaa19b65c60fca2b2f7d78aca013dbb8a6aac8db9e
  
Dropping
MD5 41007c5fa4de5dc40a46ecf8f49b766d
  
URLhaus
https://urlhaus.abuse.ch/url/3808212/
  
Delivery method
Distributed via web download

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