MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5666457906e77e9b2093eb45926d31d7492e13917c4a77e834d20ebe1c8e05ab. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5666457906e77e9b2093eb45926d31d7492e13917c4a77e834d20ebe1c8e05ab
SHA3-384 hash: 59418c797dcff09d4e2fed9304be0d35704a881139b1e8323ba1302a39d74fcb3bd8dcb09ebcf9c849baab43b2c81d00
SHA1 hash: 3b89f38067e554965883e5ac787dd7c8cad1aea3
MD5 hash: 6eb45906c3cb0e4054590cf298fdc308
humanhash: arizona-alpha-four-jig
File name:.udevmon
Download: download sample
Signature Mirai
Create hunting rule
File size:177'944 bytes
First seen:2025-08-18 08:43:16 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:by2jdQiQ3DDjcl6/gynqimPrpgTaXSPYd1Iea2/zTR3UmTzfguNZB/9mYR84:byniaP4KqtPrpgTaXl1f/zeeDNZB/9jN
TLSH T15A04A71E6E228F7EF668873447B74E25976C23D627E1D640E1ACC1146E2039E641FFE8
telfhash t1c24196180d7817f0a3756c5d099dfb76d6a330db7f262c378e61e85aab68a435d10c0c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28880.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28886.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-8041698-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
DNS request
Runs as daemon
Sends data to a server
Connection attempt
Deletes a system binary file
Substitutes an application name
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/6b26b1f3-6adc-4c7a-8a51-745fb5dafac1
Behavior Graph:
Download SVG
%3 guuid=7a8484b3-1a00-0000-7ce5-fee58a0b0000 pid=2954 /usr/bin/sudo guuid=a343f5b5-1a00-0000-7ce5-fee5920b0000 pid=2962 /tmp/sample.bin guuid=7a8484b3-1a00-0000-7ce5-fee58a0b0000 pid=2954->guuid=a343f5b5-1a00-0000-7ce5-fee5920b0000 pid=2962 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/723cdd12-7704-4433-b00a-c5fb03306d74
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1759156
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Detected Mirai
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1759156 Sample: .udevmon.elf Startdate: 18/08/2025 Architecture: LINUX Score: 96 18 phulocnhat2005.duckdns.org 2->18 20 phulocnhat2005.duckdns.org 45.153.34.54, 42597, 60532, 60534 SKYLINKNL Germany 2->20 22 Suricata IDS alerts for network traffic 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 30 4 other signatures 2->30 8 .udevmon.elf 2->8         started        10 gnome-session-binary sh gsd-rfkill 2->10         started        signatures3 28 Uses dynamic DNS services 18->28 process4 process5 12 .udevmon.elf 8->12         started        process6 14 .udevmon.elf 12->14         started        16 .udevmon.elf 12->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5666457906e77e9b2093eb45926d31d7492e13917c4a77e834d20ebe1c8e05ab
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5666457906e77e9b2093eb45926d31d7492e13917c4a77e834d20ebe1c8e05ab/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-03 15:27:54 UTC
File Type:
ELF32 Big (Exe)
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kztek6ig457jwiet5ncze3jr25es4e4rprfhp2bu2ihl4heoawvq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai credential_access discovery
Link:
https://tria.ge/reports/250818-km8nqa1pw7/
Behaviour
Reads runtime system information
Changes its process name
Reads process memory
Enumerates running processes
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-8041698-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/4f9470b1-74b4-4a41-bbde-767db0582bee
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/5666457906e77e9b2093eb45926d31d7492e13917c4a77e834d20ebe1c8e05ab

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
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 5666457906e77e9b2093eb45926d31d7492e13917c4a77e834d20ebe1c8e05ab

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3605655/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3605674/
  
URLhaus
https://urlhaus.abuse.ch/url/3605678/

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