MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768
SHA3-384 hash: 4d120d52b1c673b828e58360fcf645b34b639b543b51dd62480832836b6a3bfd27b1f93576bd7f0afe59ead0a0071098
SHA1 hash: 8d4c7bef7ef2dde09f88fc43a3496745d694b3b3
MD5 hash: 4ff8b65b2423dfa9fcd88f56cb532371
humanhash: hydrogen-east-cat-georgia
File name:zero.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:147'464 bytes
First seen:2026-06-06 02:32:37 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:oweEIxdWhccYtIPJHX1VWReCcvQJuyoXQIdS94LLLLLLLLLLLLLLLqL2LLLLLLL4:oweEIxdWhWyHbLoJwe4LLLLLLLLLLLLI
TLSH T12AE33B07B4C180FDC4DAC1744F9EB53BED72B1AD5238B26B27D4AB222E49E305E1DA54
telfhash t13651cc711daa2994b1e7f777730ad5a98c320a2114f271e4ee7368e3cf12bc50da6463
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-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 5a57d14783a0b84d1e302f4d40c2db654480ad53d33d837b42ecedd5377740af
File size (compressed) :53'636 bytes
File size (de-compressed) :147'464 bytes
Format:linux/amd64
Packed file: 5a57d14783a0b84d1e302f4d40c2db654480ad53d33d837b42ecedd5377740af

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30481.LC.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7540662-0
Create hunting rule

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

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Opens a port
Connection attempt
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
botnet masquerade
Link:
https://www.filescan.io/uploads/6a2386f1099ef368af233ac1/reports/4c429cc9-962e-4cae-9499-b31db844e792/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
43
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-06-05T23:40:00Z UTC
Last seen:
2026-06-06T01:55:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.ew
Link:
https://opentip.kaspersky.com/657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3c8ac3dc-e5e0-48fe-8c1f-47623ea0322e
Behavior Graph:
Download SVG
%3 guuid=99e80909-1a00-0000-9a24-1376960c0000 pid=3222 /usr/bin/sudo guuid=594a7a0b-1a00-0000-9a24-1376980c0000 pid=3224 /tmp/sample.bin net guuid=99e80909-1a00-0000-9a24-1376960c0000 pid=3222->guuid=594a7a0b-1a00-0000-9a24-1376980c0000 pid=3224 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=594a7a0b-1a00-0000-9a24-1376980c0000 pid=3224->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=6648d80b-1a00-0000-9a24-1376990c0000 pid=3225 /tmp/sample.bin net zombie guuid=594a7a0b-1a00-0000-9a24-1376980c0000 pid=3224->guuid=6648d80b-1a00-0000-9a24-1376990c0000 pid=3225 clone 876027c5-9e0d-5c9e-876b-9243bb7adb35 31.56.209.222:1337 guuid=6648d80b-1a00-0000-9a24-1376990c0000 pid=3225->876027c5-9e0d-5c9e-876b-9243bb7adb35 con guuid=2962ea0b-1a00-0000-9a24-13769a0c0000 pid=3226 /tmp/sample.bin guuid=6648d80b-1a00-0000-9a24-1376990c0000 pid=3225->guuid=2962ea0b-1a00-0000-9a24-13769a0c0000 pid=3226 clone
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a096ae26-0c54-4a72-bb47-1875ac5ed0fc
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-06-06 02:33:45 UTC
File Type:
ELF64 Little (Exe)
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mv5c7hxqg663j5cypduocy54hi2xgxhpybmekc2cfmwi22j5u5ua._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux
Link:
https://tria.ge/reports/260606-c12tbsht3y/
Behaviour
Reads runtime system information
Changes its process name
Enumerates running processes
Modifies Watchdog functionality
Malware Config
C2 Extraction:
31.56.209.222
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/657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768

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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d0c57a2e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_01e4a728
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_520deeb8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
Create hunting rule
Author:Elastic Security
Rule name:MatchByteSequence
Create hunting rule
Author:Generated by ChatGPT
Description:Rule to match specific byte sequence: 89 C8 C1 E8 08 31 D1 31 C8
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
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 5a57d14783a0b84d1e302f4d40c2db654480ad53d33d837b42ecedd5377740af

Mirai

elf 657a2f9ef037bdb4f45878e8e163bc3a35735cefc058450b422b2c8d693da768

(this sample)

  
Dropped by
SHA256 5a57d14783a0b84d1e302f4d40c2db654480ad53d33d837b42ecedd5377740af
  
URLhaus
https://urlhaus.abuse.ch/url/3857195/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 0cf83d0b0c1a68355e24ad72f881bad1
  
URLhaus
https://urlhaus.abuse.ch/url/3857827/

Comments