MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f
SHA3-384 hash: 04fc5eb03c66e6cf72dd6004c97034e2aafebdc9d26300f145a94518342603f7c7ef07c2b0fd9d0f352a15f66f1759af
SHA1 hash: e721ae107f49f644cf1f387f9becd50dcf5ee970
MD5 hash: 440e3f6cb555851ae3001ae1b9a0238a
humanhash: red-echo-iowa-coffee
File name:nklm68k
Download: download sample
Signature Mirai
Create hunting rule
File size:111'184 bytes
First seen:2025-12-16 00:05:06 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:OIw8pjDHOdPDKEJnI8Q94cGTH5PVSO+AICQz38un6N90FQ/IBiJPoIMwTPJ:dw8pHHrEnQ96ZtN+fCKFM0K/IBiZoIMi
TLSH T1BDB339C5A000EDBDF40B96FA865F4F02A818E7506FC21F27BEA5FCD279630647859D82
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30645.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-6981989-0
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-9933849-0
Create hunting rule

Unix.Trojan.Mirai-9940650-0
Create hunting rule

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-9951089-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Mirai-10018298-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gafgyt mirai
Link:
https://www.filescan.io/uploads/6940a23ee126b9ff438165d3/reports/21fc5020-5859-4df1-9b8b-9d1b6cfe43aa/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-12-15T23:15:00Z UTC
Last seen:
2025-12-15T23:50:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/c46b826e-9464-4165-9294-e52d3c3e5d32
Behavior Graph:
Download SVG
%3 guuid=898cffc5-1600-0000-332a-6d67850c0000 pid=3205 /usr/bin/sudo guuid=2775a0c8-1600-0000-332a-6d67880c0000 pid=3208 /tmp/sample.bin guuid=898cffc5-1600-0000-332a-6d67850c0000 pid=3205->guuid=2775a0c8-1600-0000-332a-6d67880c0000 pid=3208 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b75ae3dd-cbde-4c73-8586-51dc2c54891a
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1833571
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1833571 Sample: nklm68k.elf Startdate: 16/12/2025 Architecture: LINUX Score: 56 18 105.172.170.238 unitel-ASAO Angola 2->18 20 121.46.123.119 YOURFIBRE-AS-APYourFibrePtyLtdAU Australia 2->20 22 100 other IPs or domains 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 8 nklm68k.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nklm68k.elf 8->14         started        process6 16 nklm68k.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-12-16 00:05:17 UTC
File Type:
ELF32 Big (Exe)
AV detection:
14 of 23 (60.87%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=idf4suvyqrqpjmzib2l55xox54pw6a2qi2qrjnuapl3kvjsu5spq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/251216-adaefscx5b/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/1ccc10a0-5b1d-44e3-a3ae-e695b3f9fd0a
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/40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f

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: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 40cbc952b88460f4b3280e97deddd7ef1f6f035046a114b6807af6aaa654ec9f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3727593/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3726461/

Comments