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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5a2d40587bfcedc546d82d9ba45b335d6ef8107538da93ffa452b23bbf8307a. 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: 5


Intelligence 5 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b5a2d40587bfcedc546d82d9ba45b335d6ef8107538da93ffa452b23bbf8307a
SHA3-384 hash: c9ba711b633ec2355cb7ef24918b7c236385bef829bcfdfab6cf08eea1458175855baef1b6a628b86e8b2c671cfc4412
SHA1 hash: e361045a74bc604d9ac28ed003ea37140070d01b
MD5 hash: 89d0f11e7f60775f01da3025e2704f34
humanhash: vermont-bulldog-winter-sad
File name:bot.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:336'196 bytes
First seen:2026-09-19 21:27:50 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:r7MryGYXzovcSbNSUYoQ591ERMNHRaZ+GMrLx:nMw6cSZ/2HRa1cx
TLSH T133643A4767608FF1E375827006F747A7AABE12A517E2C485E36ED9253A7034C282FF94
telfhash t128d04c24a87807b85284dc5f49dcdf1565f169c7fd532c27dfe4567599710835d00c18
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Connection attempt
Deleting a recently created file
Sets a written file as executable
Runs as daemon
Receives data from a server
Creating a file
Sends data to a server
Traces processes
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/6aaefe764dde0a0ffe7ab50c/reports/fd909cdd-cedd-4a37-81a7-7b3c6dc193a2/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4c2fca9f-7f09-4569-8e28-6925145b5448
Behavior Graph:
Download SVG
%3 guuid=fdd459a4-1d00-0000-c96d-97e6c4080000 pid=2244 /usr/bin/sudo guuid=33458ca9-1d00-0000-c96d-97e6c6080000 pid=2246 /tmp/sample.bin guuid=fdd459a4-1d00-0000-c96d-97e6c4080000 pid=2244->guuid=33458ca9-1d00-0000-c96d-97e6c6080000 pid=2246 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bcbdb668-31c6-454f-af05-90797b1525be
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b5a2d40587bfcedc546d82d9ba45b335d6ef8107538da93ffa452b23bbf8307a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5a2d40587bfcedc546d82d9ba45b335d6ef8107538da93ffa452b23bbf8307a/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-09-19 21:28:21 UTC
File Type:
ELF32 Big (Exe)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwrnibmhx7hnyvdnqlm3urntgxlo7aihkog2sp72iuvsho7ygb5a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260919-1be52aytd1/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Deletes itself
Modifies Watchdog functionality
Traces itself
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: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:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 b5a2d40587bfcedc546d82d9ba45b335d6ef8107538da93ffa452b23bbf8307a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3919105/
  
Delivery method
Distributed via web download

Comments