MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3. 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: ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3
SHA3-384 hash: b151583a583bef6a1be5316fcd78dd41b77013d47fec7f28402a5601c531cc72d4d757f69e3ad3206223ec80694a0583
SHA1 hash: d1dbfd0063a13d099f5279559aec456a83112fbf
MD5 hash: 402f0360f10fb6a1e4fa5db07ea2097e
humanhash: august-stream-green-lima
File name:Kloki.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:58'512 bytes
First seen:2025-01-19 02:36:28 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:cd8O3IFk1dTDSVTUwq/+5W1IdM1+iss6rBQPav5:cd8OYF4NDSVTUw+/Sq1+issuB2m5
TLSH T1BE431A81F98B80F6E80709315067F73FCB31D9394161DAAEDF99EF36EA23641921224D
telfhash t11e2182f75daa0de8f3e06944c31e1fe6196de57b19b036e142b2c89063d29c240e8c3a
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 :
121
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-10005580-0
Create hunting rule

Unix.Trojan.Mirai-10017298-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678c67014487910100e11530linux22vpnfull_triage
Tags:
shellcode mirai virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Runs as daemon
Connection attempt
Opens a port
Kills processes
Substitutes an application name
Kills critical processes
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/678c6555ce56b59135cfc987/reports/a4b7d946-929d-436b-b57e-b4264e489063/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
2
Number of processes launched:
4
Processes remaning?
true
Remote TCP ports scanned:
13566
Full report:
https://elfdigest.com/brief/ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/823d4dc4-5ddc-4567-bc33-5682b359510a
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1594501
Signature
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1594501 Sample: Kloki.i686.elf Startdate: 19/01/2025 Architecture: LINUX Score: 64 23 83.222.164.36, 13566, 41226 WAVENETLB Bulgaria 2->23 25 83.222.124.80, 13566, 35464 TRI-ASTrueRecordsIncES Russian Federation 2->25 27 98 other IPs or domains 2->27 29 Malicious sample detected (through community Yara rule) 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 Machine Learning detection for sample 2->33 8 Kloki.i686.elf 2->8         started        10 gnome-session-binary sh gsd-rfkill 2->10         started        12 gnome-session-binary sh gnome-shell 2->12         started        14 5 other processes 2->14 signatures3 process4 process5 16 Kloki.i686.elf 8->16         started        18 Kloki.i686.elf 8->18         started        process6 20 Kloki.i686.elf 16->20         started        signatures7 35 Sample tries to kill multiple processes (SIGKILL) 20->35
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-19 03:14:49 UTC
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54wduwxsezxbi75gro3led262l2mppwbwey3gkkly7fxvgz3c7zq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
linux rootkit
Link:
https://tria.ge/reports/250119-c35yrstldm/
Behaviour
Writes file to tmp directory
Loads a kernel module
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-10005580-0
YARA:
Linux_Trojan_Mirai_268aac0b Linux_Trojan_Mirai_0cb1699c Linux_Trojan_Mirai_2e3f67a9 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/c8d76610-13f2-4adc-98e3-1a095ef4936a
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3

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_Trojan_Mirai_0cb1699c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 ef2c3a5af2266e147fa68bb6b20f5ed2f4c7bec1b131b3294bc7cb7a9b3b17f3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3404709/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3404705/

Comments