MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4
SHA3-384 hash: becd7c6cc7000ccceef5f5ec9082de4f8b3486c425813bc4ac7c2f8291732b7078c43f107dd36d12e1b60b85fcc47164
SHA1 hash: f7cf6848748984e50383f44b5f6aefc22849fe7e
MD5 hash: 92f6a46f4359c041742d1da4e38333c4
humanhash: quebec-pennsylvania-skylark-kentucky
File name:Josho.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:66'688 bytes
First seen:2026-04-18 03:55:17 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:wdnIYoZXnYkTAcASlquASyAFzVLl1kHQwOcL/IBikcKJKWx:FFnRUcvlqRuhLlUQcKJKWx
TLSH T1C4530985B8819A25C6D113BBFE1F018E3316576CE2DE73129D141F607BCB95F0E2BA0A
telfhash t19c11c0b59b6a1a9c0be4c29c424f45bf9aa932f00f16176c8e0a5f5704c30c0f369837
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 :
42
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
Link:
https://research.acce.ciphertechsolutions.com/results/bded295c-13d8-4a97-a8eb-25d6a0cf8212/
Detection(s):
Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-18T01:07:00Z UTC
Last seen:
2026-04-18T02:15:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.ba HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6f7b24fb-6491-423e-8f74-5b148709ee33
Behavior Graph:
Download SVG
%3 guuid=64db93a0-1a00-0000-9fb3-2d4d630a0000 pid=2659 /usr/bin/sudo guuid=bdc494a3-1a00-0000-9fb3-2d4d6c0a0000 pid=2668 /tmp/sample.bin guuid=64db93a0-1a00-0000-9fb3-2d4d630a0000 pid=2659->guuid=bdc494a3-1a00-0000-9fb3-2d4d6c0a0000 pid=2668 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d7d8cbfc-3237-4204-a23f-d89e45ba2353
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-04-18 03:56:50 UTC
File Type:
ELF32 Little (Exe)
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=shksltkd6xih6ec2vrhbi56twybjezc53sdlbcppx4ga36o3672a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:josho botnet
Link:
https://tria.ge/reports/260418-eham8sav6r/
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/91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4

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_Threat_d2dca9e7
Create hunting rule
Author:Elastic Security
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 91d525cd43f5d07f105aac4e1477d3b60292645ddc86b089efbf0c0df9dbf7f4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3824858/
  
Delivery method
Distributed via web download

Comments