MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b39ac26653ff674a9bbb085729ae658995213df36e85cd757e114c504fc9eba5. 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: 8


Intelligence 8 IOCs YARA 7 File information Comments

SHA256 hash: b39ac26653ff674a9bbb085729ae658995213df36e85cd757e114c504fc9eba5
SHA3-384 hash: 0cbdaf6374440e487608c196b0f132775bbf34a9d377d68946916bfe896a14f925305d34df50fa23aeb31c73ab6c22d0
SHA1 hash: 6eed9827e9977f9c0b3bb0aba2fff8feb2b73d14
MD5 hash: 65672d89caf6031cfbfc261c269bdfb6
humanhash: aspen-berlin-cold-robin
File name:nz.spc
Download: download sample
Signature Mirai
File size:91'976 bytes
First seen:2026-05-10 18:02:05 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:2l5GrqkdLucbPVizYeBtPaWvStPhYm5roASoAtep5:JngoeNLa5hYOc4p5
TLSH T1E4935B22B579093BC5E4943712F35326F2F6438A24A88B1E7E710E8EBF156D0364B7B5
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
47
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-05-10T15:05:00Z UTC
Last seen:
2026-05-11T12:58:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b
Status:
terminated
Behavior Graph:
%3 guuid=65594c1d-1c00-0000-021e-4b2aec090000 pid=2540 /usr/bin/sudo guuid=98876e1f-1c00-0000-021e-4b2af2090000 pid=2546 /tmp/sample.bin guuid=65594c1d-1c00-0000-021e-4b2aec090000 pid=2540->guuid=98876e1f-1c00-0000-021e-4b2af2090000 pid=2546 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-05-10 18:02:36 UTC
File Type:
ELF32 Big (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet linux
Malware Config
C2 Extraction:
fucker1.duckdns.org
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_Mirai
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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

File information


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

Web download

Mirai

elf b39ac26653ff674a9bbb085729ae658995213df36e85cd757e114c504fc9eba5

(this sample)

  
Delivery method
Distributed via web download

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