MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5
SHA3-384 hash: 163d11d8169d4efbb9118dfd8d4256487c2bb87a3398a4f7415bc0e65167bda42bfe406b8438c78b83d34ce7e7b908bd
SHA1 hash: 40b1c10652d79bc87794e5270c4af5dd03430ea7
MD5 hash: 4c7184927398309d40880ef6487079a6
humanhash: nevada-saturn-equal-fix
File name:kt2
Download: download sample
Signature Mirai
Create hunting rule
File size:120'044 bytes
First seen:2025-05-07 06:07:13 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:IlL6MmYYuFsl5Be3pxQGcZQGOvQGOwhvQ8tti8w01oMFD9GsCdkfSbCzwCCCxE5C:z3KpR/GsCafSbdCCCx+C
TLSH T107C3AB3D6E22BF7EE7B8823207F62FB0835650D37692D680D1BDCA544EB524C489E794
telfhash t160011418483417f1d3858dee6becff35e49140cf99621e3b8d40ec99a721a429c00c2c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
106
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681af8ef91991ead82b5aaeblinux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Opens a port
Runs as daemon
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/681af8cad95f3e34e962a573/reports/0dbce703-c090-4519-8379-dcc03863ac5d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
44
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b07c6360-277e-4ea0-b660-e51fd291d946
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1682921
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1682921 Sample: kt2.elf Startdate: 07/05/2025 Architecture: LINUX Score: 64 24 109.202.202.202, 80 INIT7CH Switzerland 2->24 26 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->26 28 4 other IPs or domains 2->28 30 Malicious sample detected (through community Yara rule) 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Yara detected Mirai 2->34 8 kt2.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 kt2.elf 8->14         started        process6 16 kt2.elf 14->16         started        18 kt2.elf 14->18         started        20 kt2.elf 14->20         started        22 18 other processes 14->22
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-07 06:08:11 UTC
File Type:
ELF32 Big (Exe)
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gpmlk3avpgwgqirjdpgpd52vj5koesrhp6tqiryguyfkwjy7stsq._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/250507-gvxpmsgm4w/
Behaviour
Changes its process name
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/47d1a61c-8db2-4884-9b2e-c4ee3a782f25
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/33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5

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_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 33d8b56c1579ac6822291bccf1f7554f54e24a277fa7044706a60aab271f94e5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3532687/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3531150/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments