MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4
SHA3-384 hash: b62925b7ccb4cef0b9f020869eebf25e8e5a41432b7c2fe66a7accc83f9ed1deed95be67f6be27264870b6945780e7ee
SHA1 hash: f742f5c95262aaa8e4b299ce7a5621217668e33c
MD5 hash: 1ee435ec9ddf06fe4329c2636442e202
humanhash: black-monkey-spaghetti-maine
File name:main.i486
Download: download sample
Signature Mirai
Create hunting rule
File size:34'348 bytes
First seen:2026-08-28 15:37:35 UTC
Last seen:2026-08-29 07:09:46 UTC
File type: elf
MIME type:application/x-executable
ssdeep 384:fPhSBQPbM6RUd2dJhiYMNsvlGqHkKVGPyC8p8jIWh7OyLAE4yK6xiXIo9IUWr4d+:3kBQDDKgiYMNsvlGqEKcapKhamKeWIU
TLSH T11EF2A2026E43C4B3C50320B116FA8BB64A31F9776A25D556C3A4AFF1EB161C1A2476FF
telfhash t114216ba17ed604fcf6c05d1fa35a63939b2618b3673168fa44f933453bf23b2a260911
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 :
4
# of downloads :
59
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.ELF.Agent-ERA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creating a file in the %temp% directory
Runs as daemon
Connection attempt
Launching a process
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
gcc masquerade
Link:
https://www.filescan.io/uploads/6a91ab6592366523c09c55a3/reports/59672e01-890f-461f-90a4-2bab3236a2ba/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
16
Number of processes launched:
5
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-28T13:25:00Z UTC
Last seen:
2026-08-29T20:13:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/86c55bb1-bd55-447a-ac4d-f17cfab5bc6a
Behavior Graph:
Download SVG
%3 guuid=b4767ad1-1a00-0000-a493-3d757f080000 pid=2175 /usr/bin/sudo guuid=af0858d7-1a00-0000-a493-3d7584080000 pid=2180 /tmp/sample.bin delete-file guuid=b4767ad1-1a00-0000-a493-3d757f080000 pid=2175->guuid=af0858d7-1a00-0000-a493-3d7584080000 pid=2180 execve guuid=9bf2f6d7-1a00-0000-a493-3d7585080000 pid=2181 /tmp/sample.bin guuid=af0858d7-1a00-0000-a493-3d7584080000 pid=2180->guuid=9bf2f6d7-1a00-0000-a493-3d7585080000 pid=2181 clone guuid=55b146d8-1a00-0000-a493-3d7587080000 pid=2183 /tmp/sample.bin net send-data zombie guuid=9bf2f6d7-1a00-0000-a493-3d7585080000 pid=2181->guuid=55b146d8-1a00-0000-a493-3d7587080000 pid=2183 clone 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=55b146d8-1a00-0000-a493-3d7587080000 pid=2183->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con 879313db-9102-5ffc-8443-1eefa773f834 94.154.43.12:32 guuid=55b146d8-1a00-0000-a493-3d7587080000 pid=2183->879313db-9102-5ffc-8443-1eefa773f834 send: 739B guuid=d39157d8-1a00-0000-a493-3d7588080000 pid=2184 /tmp/sample.bin guuid=55b146d8-1a00-0000-a493-3d7587080000 pid=2183->guuid=d39157d8-1a00-0000-a493-3d7588080000 pid=2184 clone guuid=35ab6ed8-1a00-0000-a493-3d7589080000 pid=2185 /usr/bin/bash guuid=55b146d8-1a00-0000-a493-3d7587080000 pid=2183->guuid=35ab6ed8-1a00-0000-a493-3d7589080000 pid=2185 execve
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3437dc93-2d10-4d2e-8eec-bc1f98ec756c
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1965376
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1965376 Sample: main.i486.elf Startdate: 28/08/2026 Architecture: LINUX Score: 60 37 94.154.43.12, 32, 45608 CDNEXTGB Turkey 2->37 39 daisy.ubuntu.com 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 12 main.i486.elf 2->12         started        15 python3.8 dpkg 2->15         started        signatures3 process4 signatures5 45 Sample deletes itself 12->45 17 main.i486.elf 12->17         started        process6 process7 19 main.i486.elf 17->19         started        process8 21 main.i486.elf bash 19->21         started        23 main.i486.elf 19->23         started        process9 25 bash lesspipe 21->25         started        27 bash groups 21->27         started        29 bash dircolors 21->29         started        process10 31 lesspipe 25->31         started        33 lesspipe basename 25->33         started        process11 35 lesspipe dirname 31->35         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Suspicious
First seen:
2026-08-28 15:38:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kmn7t355w6p52u54ivcnhqtab2vlgselu74yfvvtpp55pd43wxca._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery linux
Link:
https://tria.ge/reports/260828-s25vdazvbv/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Enumerates running processes
Deletes itself
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/531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4

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_Trojan_Mirai_122ff2e6
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 531bf9efbdb79fdd53bc4544d3c2600eaab3488ba7f982d6b37bfbd78f9bb5c4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3897917/
  
Delivery method
Distributed via web download

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