MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd
SHA3-384 hash: 67fe7b52652516ed0e38647fb3941f2ec8977075700591052c9cab415c9f5a78ce0b5e10440b4d63c65b1791d3d8377b
SHA1 hash: 6a722781a2a390bfb88b5b0d510bde6afbb54922
MD5 hash: 9047336bc9c78717d68e4a8d5dea27f5
humanhash: cold-kentucky-lactose-tennis
File name:cronn
Download: download sample
Signature Mirai
Create hunting rule
File size:42'308 bytes
First seen:2025-10-24 09:05:07 UTC
Last seen:2025-10-26 03:22:36 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:kt1ZP49QggjQv6cS2dEj6QpIrYqOl0DvjQKrpg/k8uarrWSPUWwRXArM+CVWMv:CNhggUX4pIrfhDv3S/k6rrfBFKv
TLSH T14913E17EDCA4544ACD3DAC7D19CD1CFA8D05E9B4258CB369724C68C8ADA604F3BCCA64
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 UPX
File size (compressed) :42'308 bytes
File size (de-compressed) :113'856 bytes
Format:linux/mipsel
Unpacked file: 2bddbc8af0e251ae5904d795e8f01db829d66e998fed6caff36047bba1b73141

Intelligence

File Origin
# of uploads :
2
# of downloads :
59
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-20.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Changes access rights for a written file
Runs as daemon
Receives data from a server
Opens a port
Changes access rights for a file
Sends data to a server
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
botnet mirai obfuscated packed upx
Link:
https://www.filescan.io/uploads/68fb41743a79800405f47e34/reports/944bdd90-579f-4eae-80b0-dcdfc8091f27/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-10-23T18:37:00Z UTC
Last seen:
2025-10-25T19:35:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r
Link:
https://opentip.kaspersky.com/25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/4065a157-b597-42d2-9e0e-810f4415d356
Behavior Graph:
Download SVG
%3 guuid=159a8120-1900-0000-966e-5d4626140000 pid=5158 /usr/bin/sudo guuid=9fd7d422-1900-0000-966e-5d4634140000 pid=5172 /tmp/sample.bin guuid=159a8120-1900-0000-966e-5d4626140000 pid=5158->guuid=9fd7d422-1900-0000-966e-5d4634140000 pid=5172 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/849b1f84-ec50-4d6f-b1e8-4759ce21a4a8
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1801149
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1801149 Sample: cronn.elf Startdate: 24/10/2025 Architecture: LINUX Score: 64 26 ultrauraniummirai.ddns.net 2->26 28 169.254.169.254, 80 USDOSUS Reserved 2->28 30 3 other IPs or domains 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Sample is packed with UPX 2->36 8 cronn.elf 2->8         started        10 dash rm 2->10         started        12 dash cat 2->12         started        14 9 other processes 2->14 signatures3 38 Uses dynamic DNS services 26->38 process4 process5 16 cronn.elf 8->16         started        18 cronn.elf 8->18         started        20 cronn.elf 8->20         started        process6 22 cronn.elf 16->22         started        24 cronn.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-23 20:54:24 UTC
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ewkjcqxh5wx65aj52drimrcjovisrjq3226sj76fmvzfipmkkc6q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery upx
Link:
https://tria.ge/reports/251024-k2nl4aev3h/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
ultrauraniummirai.ddns.net
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d59a144a-2ff3-4c0d-908f-c57a93932c69
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/25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 25949142e7edafee813dd0e2864449755128a61bd6bd24ffc56572543d8a50bd

(this sample)

Mirai

elf 2bddbc8af0e251ae5904d795e8f01db829d66e998fed6caff36047bba1b73141

  
URLhaus
https://urlhaus.abuse.ch/url/3685255/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 2bddbc8af0e251ae5904d795e8f01db829d66e998fed6caff36047bba1b73141
  
Dropping
MD5 4d7d3d62e3b9a7aec60bf1ef95931ab1

Comments