MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e
SHA3-384 hash: 5d946725ba077ede5032435a439aba117c7867dfd4e54e1bcf8add701efed3894bd5a68e3ed0a638a997cb5faaf4ca27
SHA1 hash: 0b7cf8dc3759aedbe12e5edc702ae0e1ed5a6062
MD5 hash: 0d45e2b2d71922c1126be1283f0c6857
humanhash: alpha-coffee-quiet-washington
File name:Space.arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:87'348 bytes
First seen:2025-07-11 10:47:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Gpn2EgaNGvcV+2sE/7iMPU4BREZEfSHYMac6f3cIIhniT4Bi9gn7O45zYt9:BVE+2dmuEZCSHYMactW4Bi9gnS4V09
TLSH T1FF83285AF9818B11D4C5127AFA1E164E371347F8E3DE72239E24AF3037CA52B0E6B855
telfhash t1b4011e640e8a05cd98bc4e8580dc7014ba2e3876fc3214294f777b154022ad23738409
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 3e3aa0b2a1abfcfbbf83267ddebcec52440e7835835253bc2f2142e8d4856f80
File size (compressed) :40'340 bytes
File size (de-compressed) :87'348 bytes
Format:linux/arm
Packed file: 3e3aa0b2a1abfcfbbf83267ddebcec52440e7835835253bc2f2142e8d4856f80

Intelligence

File Origin
# of uploads :
1
# of downloads :
19
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

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

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

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

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

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

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

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

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6870ebed900df8e7f869d1d9linux22vpnfull_triage
Tags:
malware
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin remote
Link:
https://www.filescan.io/uploads/6870ebf42f482f87cbf7d7d7/reports/083243d4-633e-49e8-8e7f-a2c5311a7c56/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/2ecac3ed-ef98-4bcf-8095-8822ac6665a0
Behavior Graph:
Download SVG
%3 guuid=21c657d4-1900-0000-1cba-bdc7ff090000 pid=2559 /usr/bin/sudo guuid=4f2833d7-1900-0000-1cba-bdc7070a0000 pid=2567 /tmp/sample.bin guuid=21c657d4-1900-0000-1cba-bdc7ff090000 pid=2559->guuid=4f2833d7-1900-0000-1cba-bdc7070a0000 pid=2567 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/471f190b-8252-49d3-a56a-0fa53bb9dc01
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1733688
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-11 10:48:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qh6xxhb6yhzjfxs4fonv3vtt5vjmhotpnxqjf3brunf52trdyzpa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd
Link:
https://tria.ge/reports/250711-mv7gqsfr2v/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/1e30a0a2-427b-4b4f-a6c9-374d81d29047
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/81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
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: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 3e3aa0b2a1abfcfbbf83267ddebcec52440e7835835253bc2f2142e8d4856f80

Mirai

elf 81fd7b9c3ec1f292de5c2b9b5dd673ed52c3ba6f6de092ec31a34bdd4e23c65e

(this sample)

  
Dropped by
SHA256 3e3aa0b2a1abfcfbbf83267ddebcec52440e7835835253bc2f2142e8d4856f80
  
URLhaus
https://urlhaus.abuse.ch/url/3581327/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 452b03b7daf0f52c0c2c40a1b07b67b0

Comments