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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c66acbde1809e7b659d681e2e57ac3a1f19a322fc889ae459c815f443ecd4a4a. 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


SilentNet


Vendor detections: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c66acbde1809e7b659d681e2e57ac3a1f19a322fc889ae459c815f443ecd4a4a
SHA3-384 hash: 4762a6d024b7b1412bef7b5cff3e20d50f7dadc4ab0fabd696a9239ee7f6dd2ddc8dd4e4da91cf280910da20283a3aff
SHA1 hash: 2fa4310b5196f9471bc3162e6b800ae79dd2f682
MD5 hash: 548494524a0fe28bc55764bf8585503d
humanhash: wolfram-bakerloo-tennis-william
File name:Krypton-FREE.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:21'770'776 bytes
First seen:2026-10-16 16:46:51 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 393216:gyU9eDEf6XsS2t+cYR7ItDgboiT/zg8PbeOqYe3GmLnq2EbaCAZ1:gyDJXsS2tMRMVg8+KOqYcGeq2gaCs
TLSH T1E52733FA74AA8178C3077476B236422324DA627EE01B0BF832F9544E19D8495BB177DF
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter ButDoge
Tags:SilentNet

Intelligence

File Origin
# of uploads :
1
# of downloads :
24
Origin country :
BR BR
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
https://github.com/kryptonclientofficial04/krypton-client-downloads/releases/download/v1.0/Krypton-FREE.zip
Verdict:
Malicious activity
Analysis date:
2026-10-16 16:41:34 UTC
Tags:
github arch-exec silentnet stealer etherhiding evasion arch-doc
Link:
https://app.any.run/tasks/3ca34ce9-61f2-488c-97dc-0a73d5f548c7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/92286/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad27ca86f551121ba16a0b2
Tags:
n/a
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c66acbde1809e7b659d681e2e57ac3a1f19a322fc889ae459c815f443ecd4a4a
Verdict:
Malicious
File Type:
jar
First seen:
2026-09-29T17:38:00Z UTC
Last seen:
2026-10-18T14:01:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/c66acbde1809e7b659d681e2e57ac3a1f19a322fc889ae459c815f443ecd4a4a/results?tab=lookup
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/c66acbde1809e7b659d681e2e57ac3a1f19a322fc889ae459c815f443ecd4a4a
Gathering data
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-09-29 20:44:00 UTC
File Type:
Binary (Archive)
Extracted files:
260
AV detection:
11 of 36 (30.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzvmxxqybht3mwowqhrok6wduhyzumrpzce24rm4qfpuipwnjjfa._file
Result
Malware family:
silentnet
Create hunting rule
Score:
  10/10
Tags:
family:silentnet stealer
Link:
https://tria.ge/reports/261016-x9qsmsct21/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/c66acbde1809e7b659d681e2e57ac3a1f19a322fc889ae459c815f443ecd4a4a

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:MULTI_Dropper_Unknown_GitHubObfuscated_JAR
Create hunting rule
Author:Marjoriefort
Description:JAR dropper : classes obfusquees a noms random sous com/github/ (densite >= 4) - famille du resolver GitHub
Reference:Veille glissante 2026-09-17_22 / grappe 21 JAR

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/92286/

Comments