MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9fc9779102c5ff1f6e03bc8d1880bb52ac7c0dfe543eb93c07aa28766e8a876. 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 8 File information Comments

SHA256 hash: a9fc9779102c5ff1f6e03bc8d1880bb52ac7c0dfe543eb93c07aa28766e8a876
SHA3-384 hash: ac9dc1699b75249f6c406fa4e3af31d6c17bb032dd05442f7059decfa7419ab96127e4aa1d6205edd2ae191d46966015
SHA1 hash: 8a4b2f21a16a30f74b728b30ff482d3a0e492f6b
MD5 hash: dfb9fa77cac7b699e25b89c37efed2b0
humanhash: cold-alanine-connecticut-south
File name:nz.sh4
Download: download sample
Signature Mirai
File size:112'164 bytes
First seen:2026-08-04 01:37:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:s/pmXVHHy9WecBg0A0ds5bU+OXKNH+d7YgPs7CEGRo8a/Hc:sBmX9KWeUG0q5U+fNihPs7G+j/Hc
TLSH T18AB3AF36C4154AE8C5594574A8A5FE3E1F63E18046631EF71AEAC6B250C7FE8F809BF0
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

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai obfuscated
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-03T23:17:00Z UTC
Last seen:
2026-08-05T20:10:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=6dd00dee-1800-0000-22ac-8bb9490b0000 pid=2889 /usr/bin/sudo guuid=65bae1f2-1800-0000-22ac-8bb9520b0000 pid=2898 /tmp/sample.bin guuid=6dd00dee-1800-0000-22ac-8bb9490b0000 pid=2889->guuid=65bae1f2-1800-0000-22ac-8bb9520b0000 pid=2898 execve
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-08-04 01:38:23 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet linux
Malware Config
C2 Extraction:
s3o65awrf56.net
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:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
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 a9fc9779102c5ff1f6e03bc8d1880bb52ac7c0dfe543eb93c07aa28766e8a876

(this sample)

  
Delivery method
Distributed via web download

Comments