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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d8c72771d069a35841e5b8a1eb3b1f34faef03bda187b8b97200735e73d3f409. 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



Threat unknown


Vendor detections: 2


Intelligence 2 IOCs YARA 4 File information Comments

SHA256 hash: d8c72771d069a35841e5b8a1eb3b1f34faef03bda187b8b97200735e73d3f409
SHA3-384 hash: e763c989815224a451fd1d5806349b77966f75693a53cb9456ed886ee8de7526f2ab3b21c5331a50f6ca011816875595
SHA1 hash: 58aabc0a585c5ce8c9f1443d658b4cce4d6f947d
MD5 hash: 15abdf05b983c50cfb4d30698d512de3
humanhash: asparagus-fish-mirror-alanine
File name:Krypton-Free.jar
Download: download sample
File size:30'558 bytes
First seen:2026-09-24 19:03:42 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 768:ELlEuTBVkZs8/08B6WM0bldG8PCDbX6xU7T:K3oj08wITG8P2AeT
TLSH T1FAD2F151CC7D4B70C11EFA328C1162203A4B5FBCED3A15CB9B762E5B8E5A09147E738A
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter wok
Tags:EtherHiding funrat jar skidfuscator

Intelligence


File Origin
# of uploads :
1
# of downloads :
69
Origin country :
NZ NZ
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
Krypton-Free.jar
Verdict:
No threats detected
Analysis date:
2026-09-18 00:23:19 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Unknown
File Type:
Jar
First seen:
2026-09-13T02:33:00Z UTC
Last seen:
2026-09-21T08:47:00Z UTC
Hits:
~10
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

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:JAVA_Malware_Unknown_ForgeAuto_0ece8eba
Author:Marjoriefort
Description:Detects Unknown (class, etat binaire)
Rule name:JAVA_Malware_Unknown_ForgeAuto_6c4b5896
Author:Marjoriefort
Description:Detects Unknown (class, etat binaire)
Rule name:JAVA_Malware_Unknown_ForgeAuto_8814e6c9
Author:Marjoriefort
Description:Detects Unknown (class, etat binaire)
Rule name:MULTI_Malware_Unknown_ForgeAuto_b2a4008d
Author:Marjoriefort
Description:Detects Unknown (inconnu, etat binaire)

File information


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

Web download

Java file jar d8c72771d069a35841e5b8a1eb3b1f34faef03bda187b8b97200735e73d3f409

(this sample)

  
Dropping
funrat
  
Delivery method
Distributed via web download

Comments