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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f
SHA3-384 hash: b9737ed148f2e77d87cb14dae4ad00e541487627ff7f5266081b42bc1f01ae807e70e71ed37f9047261603a88b6c5240
SHA1 hash: 80bb65e2fc7c8682fdd1cd58fad500e281cf4465
MD5 hash: 1248f2e9904a3f6c17c31995fa1ccce0
humanhash: bravo-robin-zulu-happy
File name:lezys-optimizations-1.21.11.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:1'400'887 bytes
First seen:2026-06-19 12:15:23 UTC
Last seen:2026-09-08 08:17:34 UTC
File type:Java file jar
MIME type:application/zip
ssdeep 24576:vl7Ssq7GFrYAdp6yDH6sTEx1J4H3XJ2OjgwrtZ9LqFH1Sd2XaoRP1ci3:9u7GhdQQHSHJ4HnJa+Z5qFH1KnoduU
TLSH T167552362DFDC6029D05333FB9A7149614730C985B846303BAEB6915F4EA582A2FB3F71
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter burger
Tags:jar SilentNet

Intelligence

File Origin
# of uploads :
4
# of downloads :
105
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
lezys-optimizations-1.21.11.jar
Verdict:
No threats detected
Analysis date:
2026-06-19 12:15:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ac24e6d3-142b-4200-a018-e55fc9780edf

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/71228/
Detection(s):
SecuriteInfo.com.HEUR.Trojan.Java.Generic.286.21985.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a3532d31548daf709f7dc93
Tags:
n/a
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-debug obfuscated
Link:
https://www.filescan.io/uploads/6a3532ed62d0679105f91e3f/reports/20aae56b-de51-4b43-b629-63eb3840ba04/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f
Verdict:
Malicious
File Type:
jar
First seen:
2026-06-19T09:19:00Z UTC
Last seen:
2026-06-21T01:58:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Java.Generic
Link:
https://opentip.kaspersky.com/67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f/results?tab=lookup
Result
Threat name:
n/a
Detection:
suspicious
Classification:
n/a
Score:
22 / 100
Link:
https://www.joesandbox.com/analysis/1931022
Signature
Joe Sandbox ML detected suspicious sample
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1931022 Sample: lezys-optimizations-1.21.11.jar Startdate: 19/06/2026 Architecture: WINDOWS Score: 22 12 Joe Sandbox ML detected suspicious sample 2->12 6 cmd.exe 2 2->6         started        process3 process4 8 java.exe 3 6->8         started        10 conhost.exe 6->10         started       
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f/
Verdict:
Malicious
Threat:
Family.SILENTNET
Link:
https://tip.neiki.dev/file/67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f
Threat name:
Win32.Trojan.Qwexlafiba
Create hunting rule
Status:
Malicious
First seen:
2026-06-19 12:15:36 UTC
File Type:
Binary (Archive)
Extracted files:
203
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m5kzwqqabidp3elp6h2niwidz2sooht27lyoonlrumegglgfkzpq._file
Result
Malware family:
silentnet
Create hunting rule
Score:
  10/10
Tags:
family:silentnet stealer
Link:
https://tria.ge/reports/260619-pe9m9sfw7l/
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/67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar

File information

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

Web download

SilentNet

Java file jar 67559b42000a06fd916ff1f4d45903cea4e71e7afaf0e73571a308632cc5565f

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/71228/
  
URLhaus
https://urlhaus.abuse.ch/url/3867540/
  
Delivery method
Distributed via web download

Comments