MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d496b03b6bd5dabe6c314ad089185789c0d476ca5bc825a450f2daf2a52761a7. 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 19 File information Comments

SHA256 hash: d496b03b6bd5dabe6c314ad089185789c0d476ca5bc825a450f2daf2a52761a7
SHA3-384 hash: 8b1c0cf9e5d58c57466a0984e5c057385a8966c29929d2d2aa5acd69053a8fa77de5301f678001e23eb69fb98827314d
SHA1 hash: 5bce6edfb3ffabea0936519d3fa3ca10002fd650
MD5 hash: d5ba6143f6d0b519da37a50b555af937
humanhash: beer-mexico-robert-solar
File name:ciubuc_sh4
Download: download sample
Signature Mirai
File size:2'682'664 bytes
First seen:2026-05-02 21:30:04 UTC
Last seen:2026-05-03 15:34:22 UTC
File type: elf
MIME type:application/x-executable
ssdeep 49152:HtmenlpiDI+eadQTvEmT0/P34exRNQVd5+CV1zkqtC5wvPseX:M8y/DMze5wse
TLSH T14BC59D63D868AFEBC526D571A538CEF60B536800521A0FF63596E3B44947AC2F3067F8
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence


File Origin
# of uploads :
2
# of downloads :
70
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
base64 gafgyt mirai obfuscated
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-05-02T18:34:00Z UTC
Last seen:
2026-05-03T03:46:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Status:
terminated
Behavior Graph:
%3 guuid=836c4434-1700-0000-4fe9-072ec70e0000 pid=3783 /usr/bin/sudo guuid=5707ff35-1700-0000-4fe9-072ed40e0000 pid=3796 /tmp/sample.bin guuid=836c4434-1700-0000-4fe9-072ec70e0000 pid=3783->guuid=5707ff35-1700-0000-4fe9-072ed40e0000 pid=3796 execve
Threat name:
Linux.Backdoor.Gafgyt
Status:
Malicious
First seen:
2026-05-02 21:31:01 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 35 (37.14%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet linux
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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_Yakuza
Author:NDA0E
Description:Yakuza botnet
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:enterpriseunix2
Author:Tim Brown @timb_machine
Description:Enterprise UNIX
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Author:Elastic Security
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:WHIRLPOOL_Constants
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf d496b03b6bd5dabe6c314ad089185789c0d476ca5bc825a450f2daf2a52761a7

(this sample)

  
Delivery method
Distributed via web download

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