MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5a3d982523c2933f0f1defa83e740f334d51c45031a21d168d11de96da4556e. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c5a3d982523c2933f0f1defa83e740f334d51c45031a21d168d11de96da4556e
SHA3-384 hash: cd25aa854dd115684b01247b0bffda8b9cd9ba1889119fe9b167e7b4e985070e6245a3778c1dd2f9aee41b6211e303f3
SHA1 hash: c230bca8b7b52b618fb702dbd981de9a8ecbccc5
MD5 hash: 9297b87c34edf9af6d0bd30259d86347
humanhash: floor-west-fruit-salami
File name:nklarm7
Download: download sample
Signature Mirai
Create hunting rule
File size:73'892 bytes
First seen:2025-02-01 13:42:02 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:JBnSqeBG3AXdo//H7vJZ4oOhUX4yautS6yPimg9E9ljaiHHw6LR5:peA3z/fAoO6oyautS6yPimX7w6t
TLSH T15773E649BC819F01D5E822BAFA1E018D332767A8E3EF7202DD111B1577CA91F0E77A11
telfhash t1ace02b519e1d64dcebe1125980bd534b8ab833f430564104ae6d2b1e80274b1717f476
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
101
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.29229.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30481.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9970440-0
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679e2522a9881a7a01c4e38dlinux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Receives data from a server
Sends data to a server
Opens a port
Runs as daemon
Substitutes an application name
Deleting of the original file
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/679e24f1a4e90e7849c2c309/reports/8c6bdc5a-cfe0-4449-8e67-719ef0c2540a/overview
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c24e76f2-dbe8-42ee-8a0d-0a4114ab4873
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1604433
Signature
Multi AV Scanner detection for submitted file
Sample deletes itself
Sends malformed DNS queries
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1604433 Sample: nklarm7.elf Startdate: 01/02/2025 Architecture: LINUX Score: 56 15 serisbot.geek. [malformed] 2->15 17 98.139.117.82 YAHOO-GQ1US United States 2->17 19 101 other IPs or domains 2->19 21 Multi AV Scanner detection for submitted file 2->21 8 nklarm7.elf 2->8         started        signatures3 23 Sends malformed DNS queries 15->23 process4 signatures5 25 Sample deletes itself 8->25 11 nklarm7.elf 8->11         started        process6 process7 13 nklarm7.elf 11->13         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c5a3d982523c2933f0f1defa83e740f334d51c45031a21d168d11de96da4556e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c5a3d982523c2933f0f1defa83e740f334d51c45031a21d168d11de96da4556e/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-02-01 13:43:14 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ywr5tasshquth4hr335ihz2a6m2nkhcfamncduli2eo6s3nekvxa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet defense_evasion discovery
Link:
https://tria.ge/reports/250201-qz2c3avjgt/
Behaviour
Changes its process name
Deletes itself
Modifies Watchdog functionality
Renames itself
Unexpected DNS network traffic destination
Contacts a large (110212) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9970440-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c2ae965d-78ac-4d6b-be9c-d5a377033e0c
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/c5a3d982523c2933f0f1defa83e740f334d51c45031a21d168d11de96da4556e

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_8299c877
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 c5a3d982523c2933f0f1defa83e740f334d51c45031a21d168d11de96da4556e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3422956/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3422968/
  
URLhaus
https://urlhaus.abuse.ch/url/3424006/
  
URLhaus
https://urlhaus.abuse.ch/url/3424107/

Comments