MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3
SHA3-384 hash: 60ba2261cd9ec25f9dce2459673d1474ae83b6a057775cba573c962aecbf96a4c65db88b70f0fb1293a667d078798d0a
SHA1 hash: e38fde7c9174b37a411e05d06d8919792ce36d8c
MD5 hash: 35cda825311751825ab870690b808a0f
humanhash: diet-moon-cold-lemon
File name:frosty.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:120'488 bytes
First seen:2026-06-17 16:05:56 UTC
Last seen:2026-06-17 22:54:24 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:jQ8xpHMsqlkAcRpdrTOC2ow95VhH0SFEcWbI3c:bxpHMpOHlWC2h95VhH0+3c
TLSH T1EBC3B51D3E219FBEFB9D867147B78B2046D437962BE0D285E15CEE091E7028E381E794
telfhash t1a131be601d3746390e51eeec58cc3666152c6257e545de72df2888ac21308eae97ef0e
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
3
# of downloads :
63
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Link:
https://research.acce.ciphertechsolutions.com/results/66b72033-c57c-477a-976d-278c32b8b22e/
Detection(s):
Unix.Dropper.Mirai-7135881-0
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7135949-0
Create hunting rule

Unix.Dropper.Mirai-7135974-0
Create hunting rule

Unix.Dropper.Mirai-7135987-0
Create hunting rule

Unix.Dropper.Mirai-7135996-0
Create hunting rule

Unix.Dropper.Mirai-7136033-0
Create hunting rule

Unix.Trojan.Mirai-9807962-0
Create hunting rule

Unix.Trojan.Mirai-9808381-0
Create hunting rule

Unix.Trojan.Gafgyt-6748839-0
Create hunting rule

YARA.SIGNATURE_BASE_MAL_ARM_LNX_Mirai_Mar13_2022.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Creating a file in the %temp% directory
Connection attempt
Launching a process
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc masquerade obfuscated
Link:
https://www.filescan.io/uploads/6a32c5ed9799578a6c3d9800/reports/7dfa638c-2532-4118-858d-7e329a76580b/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-06-17T02:57:00Z UTC
Last seen:
2026-06-17T04:01:00Z UTC
Hits:
~10
Detections:
HEUR:Exploit.Linux.DLink.c HEUR:Exploit.Linux.CVE-2018-10561.a HEUR:Exploit.Linux.CVE-2014-8361.a HEUR:Backdoor.Linux.Mirai.hv HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/30142dcf-224d-43da-8b06-c29b7cf359ae
Behavior Graph:
Download SVG
%3 guuid=596b8d19-1a00-0000-6836-8bb93d140000 pid=5181 /usr/bin/sudo guuid=e944431c-1a00-0000-6836-8bb93e140000 pid=5182 /tmp/sample.bin guuid=596b8d19-1a00-0000-6836-8bb93d140000 pid=5181->guuid=e944431c-1a00-0000-6836-8bb93e140000 pid=5182 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6406d9a1-f4bc-454e-8d32-462bbb3be83d
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-06-17 07:32:07 UTC
File Type:
ELF32 Big (Exe)
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gpx457bz3k7ydank6iw7vodwkmninpvqo6qoxb6hpsamlww7f6rq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet discovery
Link:
https://tria.ge/reports/260617-tj8zraat8j/
Behaviour
System Network Configuration Discovery
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/33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3

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
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:iot_req_metachar
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_1ac392ca
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 33efcefc39dabf8181aaf22dfab876531a86beb077a0eb87c77c80c5dadf2fa3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3866319/
  
Delivery method
Distributed via web download

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