MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482. 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: b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482
SHA3-384 hash: 816edc3b535a2d89764739189ce7af5923ca372222c3cc53026d468b4e1c57134f4ff36b5705bbbbace12a438b714499
SHA1 hash: 366028141c9e31ee300b93529b7eadaf209c4392
MD5 hash: 29544b2bd5a40d1d37bd3e9e5f93caa8
humanhash: seven-robin-twelve-may
File name:nklmpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:98'376 bytes
First seen:2025-12-17 17:19:48 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:z9A//An9pnNRaYxtFgn518SaI3J+v7cxnqZVJqQfb/RKdaXgnQbVRoK0:z9AwPNMYPFI18SvZQnyaQnQAd
TLSH T101A3081ABB644FF7D85FCD3745B99B0524CD510A22A83B753A74D828F64B14F0AE38B8
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 :
73
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31069.LX.BOT.UNOFFICIAL
Create hunting rule

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

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

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

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

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
DNS request
Creating a file
Connection attempt
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6942e657e126b9ff43854f99/reports/c0cb6ebf-0589-4e17-b738-2e6d392cee4f/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-17T15:34:00Z UTC
Last seen:
2025-12-19T00:17:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f2809844-358d-4bea-8234-c4c094f508e2
Behavior Graph:
Download SVG
%3 guuid=f36c05ce-1900-0000-a12d-c74626090000 pid=2342 /usr/bin/sudo guuid=223b8bcf-1900-0000-a12d-c74627090000 pid=2343 /tmp/sample.bin guuid=f36c05ce-1900-0000-a12d-c74626090000 pid=2342->guuid=223b8bcf-1900-0000-a12d-c74627090000 pid=2343 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9f5ab8d7-beb7-452e-b5a3-e7abc2f8bbc9
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1835031
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Multi AV Scanner detection for submitted file
Sample scans a subnet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1835031 Sample: nklmpsl.elf Startdate: 17/12/2025 Architecture: LINUX Score: 56 25 31.140.194.102 TURKCELL-ASTurkcellASTR Turkey 2->25 27 31.140.194.103 TURKCELL-ASTurkcellASTR Turkey 2->27 29 100 other IPs or domains 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 Connects to many IPs within the same subnet mask (likely port scanning) 2->33 35 Sample scans a subnet 2->35 9 nklmpsl.elf 2->9         started        11 dash rm 2->11         started        13 dash grep 2->13         started        15 dash rm 2->15         started        signatures3 process4 process5 17 nklmpsl.elf 9->17         started        process6 19 nklmpsl.elf 17->19         started        21 nklmpsl.elf 17->21         started        process7 23 nklmpsl.elf 19->23         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-17 17:20:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 23 (47.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wh4d5rafkjoxwpuxirvivpextv6557b6j6sasyikxrljugbtksba._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Link:
https://tria.ge/reports/251217-vwky5axmfx/
Behaviour
Changes its process name
Renames itself
Contacts a large (1284) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7cb29643-0824-4ba5-ace3-35f5ec857927
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/b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482

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 b1f83ec405525d7b3e97446a8abc979d7ddefc3e4fa409610abc569a18335482

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3726615/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3726473/

Comments