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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8ca4a04ca26568b9bb3a7f2daca82b33c932b27e83f64700ea76fd3abb89208. 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: 3


Intelligence 3 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8ca4a04ca26568b9bb3a7f2daca82b33c932b27e83f64700ea76fd3abb89208
SHA3-384 hash: a3090d8a5d0be752a34eaa97a1ad12d9db3daf8166cea8e06b7adaff3ee07909c5a97d49e517a3ac47006c1cae599015
SHA1 hash: 8c73a9597142f48934fab64e650907cc6ee3f7c2
MD5 hash: 8dde156161128e649e716579bb0b8d8c
humanhash: fourteen-helium-hydrogen-nineteen
File name:u.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:706'584 bytes
First seen:2026-10-18 06:19:21 UTC
Last seen:2026-10-18 20:53:17 UTC
File type: elf
MIME type:application/x-executable
ssdeep 12288:+AxlUX+NgHUZLWd9HL47pzIaUVd5Et9ZayzsPDHXc:9o+NgHEBYVd5Et8g
TLSH T1EFE48D2EB2B3B1BCD11BC03007DBCAB25536F47526212E7B26C4DA343E5ADA1175AB71
telfhash t1ba7157b458f678b0b6dfc601a362f979a97310a269ec39b05736ac94efc5f401d72813
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 :
2
# of downloads :
65
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sends data to a server
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/97d8522a-cf33-443e-b8ce-03683bee5372
Behavior Graph:
Download SVG
%3 guuid=63da5963-1b00-0000-1b16-8de28f0a0000 pid=2703 /usr/bin/sudo guuid=cbc0ee68-1b00-0000-1b16-8de2970a0000 pid=2711 /tmp/sample.bin send-data guuid=63da5963-1b00-0000-1b16-8de28f0a0000 pid=2703->guuid=cbc0ee68-1b00-0000-1b16-8de2970a0000 pid=2711 execve e0dd3577-80bf-5190-a6c9-8fb3cfa07bfe 45.153.34.235:10019 guuid=cbc0ee68-1b00-0000-1b16-8de2970a0000 pid=2711->e0dd3577-80bf-5190-a6c9-8fb3cfa07bfe send: 8B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/61f25c9e-f9f6-4f04-9a9f-b4d533279b8c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f8ca4a04ca26568b9bb3a7f2daca82b33c932b27e83f64700ea76fd3abb89208/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7dfeubgkezlixg5tu7znvsucwm6jgkzh5a7wi4aou5x5hk5ysiea._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/261018-g3lmcaht3n/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/f8ca4a04ca26568b9bb3a7f2daca82b33c932b27e83f64700ea76fd3abb89208

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:malwareelf55503
Create hunting rule
Rule name:MIRAI_OHSHIT_payload
Create hunting rule
Author:AfterPacket
Description:MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:https://github.com/Afterpacket/drosera-threat-intel
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:unixredflags3
Create hunting rule
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 f8ca4a04ca26568b9bb3a7f2daca82b33c932b27e83f64700ea76fd3abb89208

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3951648/
  
Delivery method
Distributed via web download

Comments