MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55
SHA3-384 hash: 4e2bd3d1fd46416d2f42e9eadca581b3b58664b66d7a19548277fa9097936972b87dabd56c40d759147bfe9ff47495a6
SHA1 hash: 9204b5efada37f1ac61c20b8cd1a770cf88bb354
MD5 hash: de1d0b4dfc5827f254fbdbaac46fbaf4
humanhash: stairway-bravo-lactose-emma
File name:nklarm5
Download: download sample
Signature Mirai
Create hunting rule
File size:91'444 bytes
First seen:2026-01-22 01:34:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:B6hCnqetu5NdFjhe8XTs4Q4zuCNZ53vLz99jJeaze5Tt:BECqe45FdxXdSCt3v99jJjy5T
TLSH T17793198ABC81C712C6E071B6FB1F528D335643A8D3E6B143DD19AB29674F86B0E37251
telfhash t1b651012aff580aaca7e6463551ef540b22fd31ed1b2614a79e2d9f0f44021c3702f827
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 gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

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

Unix.Trojan.Mirai-7759336-0
Create hunting rule

Unix.Trojan.Mirai-7772538-0
Create hunting rule

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

Unix.Trojan.Mirai-10004218-0
Create hunting rule

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

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
rust
Link:
https://www.filescan.io/uploads/69717eed55805a763feebfe1/reports/cf46cd66-24f7-43be-9dd8-6fa9a1fdea42/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
1
Number of processes launched:
2
Processes remaning?
false
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/16156e6b-31ea-410f-9757-127637f9808d
Behavior Graph:
Download SVG
%3 guuid=f1225a0c-1a00-0000-e5ef-7449cd090000 pid=2509 /usr/bin/sudo guuid=8c4ee10e-1a00-0000-e5ef-7449d3090000 pid=2515 /tmp/sample.bin guuid=f1225a0c-1a00-0000-e5ef-7449cd090000 pid=2509->guuid=8c4ee10e-1a00-0000-e5ef-7449d3090000 pid=2515 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c594bf20-785a-4fee-bdad-81671c5235a3
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1855422
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1855422 Sample: nklarm5.elf Startdate: 22/01/2026 Architecture: LINUX Score: 60 18 5.25.122.159, 23 TURKCELL-ASTurkcellASTR Turkey 2->18 20 5.25.122.163, 23 TURKCELL-ASTurkcellASTR Turkey 2->20 22 100 other IPs or domains 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Yara detected Mirai 2->26 28 Connects to many IPs within the same subnet mask (likely port scanning) 2->28 8 nklarm5.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nklarm5.elf 8->14         started        process6 16 nklarm5.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55/
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2026-01-22 01:36:07 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqoelkq2li2tdb62axop55365hpgyd5tmtaoapvxvrr7i5hmp5kq._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260122-bz1zzaaw7e/
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/641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55

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_Generic_Threat_d94e1020
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 641c45aa1a5a353187da05dcfef77ee9de6c0fb364c0e03eb7ac63f474ec7f55

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739220/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739426/

Comments