MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e
SHA3-384 hash: ec0bb50df9a65fc397e15bd8bb3cf168dc91f25304871997c8ff4228a83c063becac5f28367bb5e2da81651287a13d63
SHA1 hash: c9c031a687931d46bf7f826ada46708a85b8656c
MD5 hash: cdb33d02d278650cf9471987e8381ed1
humanhash: florida-california-winner-venus
File name:Kloki.arm4
Download: download sample
Signature Mirai
Create hunting rule
File size:66'908 bytes
First seen:2025-01-19 02:46:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:4oW+Gx/9AHr6IfuW3WS7YdL/QzyEwSK8vnL:pW+GFIfn3F7YdkDwinL
TLSH T157632981BD815A17C6D412BBFB6E428C372723A8D2DB7217DD226F11378A92F0D77642
telfhash t195f05c644ec90c947fd081d9519f722ae46cf238972171598bb77f0d40e78d5a610835
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 :
118
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai.1534.31911.14228.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678c69eb4487910100e116b1linux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/678c67afce56b59135cfc9d3/reports/8c53f738-ef37-475a-b9b3-bcf085052a00/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
29
Number of processes launched:
3
Processes remaning?
true
Remote TCP ports scanned:
13566
Full report:
https://elfdigest.com/brief/81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e
Behaviour
Process Renaming
Information Gathering
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/46ddd01a-651c-48c3-9359-1a265cec71f7
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1594506
Signature
Antivirus / Scanner detection for submitted sample
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: 1594506 Sample: Kloki.arm4.elf Startdate: 19/01/2025 Architecture: LINUX Score: 60 23 83.222.162.242, 13566, 47886 WAVENETLB Bulgaria 2->23 25 83.222.163.194, 13566, 33484 WAVENETLB Bulgaria 2->25 27 56 other IPs or domains 2->27 29 Antivirus / Scanner detection for submitted sample 2->29 31 Multi AV Scanner detection for submitted file 2->31 8 Kloki.arm4.elf 2->8         started        10 gnome-session-binary sh gsd-sharing 2->10         started        12 gnome-session-binary sh gsd-print-notifications 2->12         started        14 4 other processes 2->14 signatures3 process4 process5 16 Kloki.arm4.elf 8->16         started        18 Kloki.arm4.elf 8->18         started        process6 20 Kloki.arm4.elf 16->20         started        signatures7 33 Sample tries to kill multiple processes (SIGKILL) 20->33
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-19 03:13:48 UTC
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qh5hmn52pddhjrdueqi7hlwobbn3rm2ffknzvsh4xvgymrzlgm7a._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/250119-c9v25sspd1/
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/69b67e06-02e4-4712-af95-892cb116c558
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/81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e

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 81fa7637ba78c674c4742411f3aece085bb8b3452a9b9ac8fcbd4d86472b333e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3397145/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3397154/

Comments