MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e
SHA3-384 hash: a07885f855dc1524ea641a8d0e5a06a27aee5d8317a25f2bbeefe7d75d257b63e0c14d7b78db7ef9fd45e01241c2bcdf
SHA1 hash: d44cbd0e089fb3e9e05d7d7304732e91e5202825
MD5 hash: 41745a858b3419c18068d0540859cffe
humanhash: illinois-sad-aspen-mars
File name:main_x86
Download: download sample
Signature Mirai
Create hunting rule
File size:89'992 bytes
First seen:2025-02-12 08:31:37 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:W/QCZaxGdvts3i5JPhowIxPu++ALtgUIKqI4FrS4LS7:WYCZa8dvm3oJPhVIxP5htSKfUmD7
TLSH T1B1937CC0F683C4F6E84305B1507BE7379B32F1B9101AFA43D3699A72DC91951EA1AB9C
telfhash t10751b1fa6dba08ecfbd0a804c75e5bd33669ca7b153025b0406398b532f79954475c3a
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 :
1
# of downloads :
92
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28880.LC.UNOFFICIAL
Create hunting rule

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

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
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

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67ac5d0e4f5583c4c4d859f2linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Creating a file
Kills processes
Sends data to a server
Traces processes
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
bash lolbin remote
Link:
https://www.filescan.io/uploads/67ac5ca7a116e377e79c37bb/reports/c5e70560-b350-47c7-b748-96811f8efbcf/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
3
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e
Behaviour
Process Renaming
Anti-Debugging
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/868b2108-9c69-40c1-a2f6-2335ea701548
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1612907
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1612907 Sample: main_x86.elf Startdate: 12/02/2025 Architecture: LINUX Score: 76 14 Malicious sample detected (through community Yara rule) 2->14 16 Antivirus / Scanner detection for submitted sample 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected Mirai 2->20 7 main_x86.elf 2->7         started        process3 signatures4 22 Sample deletes itself 7->22 10 main_x86.elf 7->10         started        process5 process6 12 main_x86.elf 10->12         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-02-12 08:32:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6mnsue23rxols4rgmo4oyrjaxcjeulbyxdotzgpgx5wrsvckvepa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
linux
Link:
https://tria.ge/reports/250212-kfe3tstqct/
Behaviour
Writes file to tmp directory
Changes its process name
Deletes itself
Traces itself
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-9441505-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_ea92cca8 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3 Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/5f5f1b87-40be-4e65-8c2b-78817c5682cb
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e

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_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:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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 f31b2a135b8ddcb9722663b8ec4520b8924a2c38b8dd3c99e6bf6d19544aa91e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3437075/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3437418/
  
URLhaus
https://urlhaus.abuse.ch/url/3437431/

Comments