MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649
SHA3-384 hash: 71aa67dd05a54cc5d6e576abf7938a325c2503b105b8346d65c4bd744ed29f633e88454a280bd397c36605325797349f
SHA1 hash: afc1f12e607e46b06d297741d46c685f4a5fd3f4
MD5 hash: 71c02e6ae77d03b8af28e00734b27784
humanhash: mars-iowa-fix-fanta
File name:x86
Download: download sample
Signature Mirai
Create hunting rule
File size:71'488 bytes
First seen:2025-08-23 02:45:43 UTC
Last seen:2025-08-23 08:22:42 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:VJGTYb5FjMoiUxOdB9RrqdTYbui1vYRmj4JN9KK+FdQ2Su4:VJG6njMoxa9RedTHi1QRm88K+FdQvx
TLSH T13F634B17B981D0FDC49EC2740B7AB63AD933B86D1234B26927D4FF226D59E215E2D900
telfhash t1053107a535b529b0f0ffe9647316e0584d780e5610f131e288b6b8e3d761bc61e75827
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 :
3
# of downloads :
30
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.5304.9523.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
android base64 gafgyt mirai
Link:
https://www.filescan.io/uploads/68a92c0b4a87ed796768d839/reports/166b8bb3-7bbb-4024-839e-68874576f586/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-08-22T20:35:00Z UTC
Last seen:
2025-08-22T20:35:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1d167aa4-5da2-4b21-8b05-757b0ba20b96
Behavior Graph:
Download SVG
%3 guuid=9014d6ef-1600-0000-b146-f57ef00c0000 pid=3312 /usr/bin/sudo guuid=9de57bf2-1600-0000-b146-f57ef20c0000 pid=3314 /tmp/sample.bin guuid=9014d6ef-1600-0000-b146-f57ef00c0000 pid=3312->guuid=9de57bf2-1600-0000-b146-f57ef20c0000 pid=3314 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5b546c58-3226-4146-8952-b3e914cbe88f
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1763408
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-23 01:27:15 UTC
File Type:
ELF64 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qgtgix4uegi3yj4t7flkz7epuk4akaixd6h4royfddo53mcq6zeq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250823-c9klea1qt4/
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-7640640-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Mirai_e0cf29e2
Link:
https://app.threat.zone/submission/d91c2df9-561b-45a6-aa09-53e8c25c79e3
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/81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649

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_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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 81a6645f942191bc2793f956acfc8fa2b80501171f8fc8bb0518ddddb050f649

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3591775/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3609721/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments