MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d
SHA3-384 hash: 3e455097468ceace4b26f581ef805d2d83c99fbb18ba4c2ccebc85e0313becb525eb6948a84bae0ef602de934c79351e
SHA1 hash: 11ae5845ce956352442174562af4d105c3513794
MD5 hash: 3b92e7819a2233d7cc3f0c3fbc4f5f08
humanhash: washington-oklahoma-oranges-jig
File name:vaxbot.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:75'728 bytes
First seen:2026-05-01 16:29:52 UTC
Last seen:2026-05-01 21:39:26 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:fU+WorMm01sOx+zcCVoXHmB7IjGiQMsGBv36SHWfrEu5/wB:fX/rE1sO7MBB7bzMtzGEuKB
TLSH T1AE7312E351186BF9DE406B719BB2BD95FB33AE3D331007EF50B914BB8451B802A91790
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 UPX
File size (compressed) :75'728 bytes
File size (de-compressed) :206'952 bytes
Format:linux/amd64
Unpacked file: 8e6daa19e0a785c34e76938c31b6be46dab14d3c589516307916c890605aea9b

Intelligence

File Origin
# of uploads :
2
# of downloads :
45
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
Connection attempt
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed upx
Link:
https://www.filescan.io/uploads/69f4d5532fcb905ec278cb7e/reports/1fa1f886-b88c-458b-9fe6-ab20f4b2490d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
unknown
Number of open files:
50
Number of processes launched:
22
Processes remaning?
false
Remote TCP ports scanned:
5555,23
Full report:
https://elfdigest.com/brief/b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-05-01T07:31:00Z UTC
Last seen:
2026-05-02T11:37:00Z 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
Link:
https://opentip.kaspersky.com/b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d36a76dd-636d-4599-8e3e-0ad7ddcaf30a
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-05-01 10:47:09 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wpbch6metwj5asbo5z4tw67u4yip6usxdjp5dwgxormslguvu4oq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/260501-tz6vbshx4z/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Contacts a large (250263) amount of remote hosts
Creates a large amount of network flows
Family: Mirai
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
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:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf b3c223f9849d93d0482eee793b7bf4e610ff52571a5fd1d8d77459259a95a71d

(this sample)

Mirai

elf 8e6daa19e0a785c34e76938c31b6be46dab14d3c589516307916c890605aea9b

  
URLhaus
https://urlhaus.abuse.ch/url/3836448/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 8e6daa19e0a785c34e76938c31b6be46dab14d3c589516307916c890605aea9b
  
Dropping
MD5 13241a21eea99ddc385b46b39e72f485

Comments