MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf1e4eb4e30c00d2b68cc9e7e68123c28ddde4f906ec39ba93f94467aadc30fd. 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: 6

Intelligence 6 IOCs YARA 11 File information Comments

SHA256 hash:	bf1e4eb4e30c00d2b68cc9e7e68123c28ddde4f906ec39ba93f94467aadc30fd
SHA3-384 hash:	7cd1ab48e6b2f1ea0d0f2e48cd559ba22561ae435e9560f42cce86ffc6f9a9af54f979a3e6c053ad5821a8ae959ba647
SHA1 hash:	86c5b97d01ed3c88309be8499be20a051b91f084
MD5 hash:	b468e4c34d996561124330c06e35bec8
humanhash:	iowa-montana-ceiling-west
File name:	krypton.jar
Download:	download sample
Signature	SilentNet Create hunting rule
File size:	197'681 bytes
First seen:	2026-10-21 18:56:06 UTC
Last seen:	Never
File type:	jar
MIME type:	application/zip
ssdeep	6144:7zsXFqM8xoLeq4ZSb3X2qHA2hPDS9dZByjOw:Mcnxvq9nhAqPudBGOw
TLSH	T1861412CE6A098354C4821A36601DA6DC34573F1A3357E26AEDB634F01BFBE522D490BF
TrID	77.1% (.JAR) Java Archive (13500/1/2) 22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika	jar
Reporter	wok
Tags:	jar java Python SilentNet

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

jar

Verdict:

Malicious activity

Analysis date:

2026-10-21 20:39:15 UTC

Tags:

silentnet stealer etherhiding evasion auto python generic arch-exec arch-doc openssl tool

Link:

https://app.any.run/tasks/675cca70-1c56-4b12-a325-e991c6e5de4d

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/93706/

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad90ad1afb06e650cd864a7

Tags:

n/a

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/6ad90ad4190be3a76b4d77c7/reports/779843f5-89b1-48a5-8303-f5f1d7adc06d/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/bf1e4eb4e30c00d2b68cc9e7e68123c28ddde4f906ec39ba93f94467aadc30fd

Result

Malware family:

Silentnet

Verdict:

Malicious

Trusted hash?:

False

File:

Classes:

Nested archives:

Source:

https://www.jarscanner.org/

Findings

Minecraft session theft indicators: Code associated with Minecraft session-token collection was found.

Silentnet signature: Known Silentnet data path was found.

External process execution: ProcessBuilder can execute operating-system commands.

User-Agent: May indicate outbound HTTP requests or client impersonation.

Verdict:

Malicious

File Type:

jar

First seen:

2026-10-22T23:19:00Z UTC

Last seen:

2026-10-23T04:02:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/bf1e4eb4e30c00d2b68cc9e7e68123c28ddde4f906ec39ba93f94467aadc30fd/results?tab=lookup

Score:

Verdict:

Benign

File Type:

Result

Malware family:

n/a

Score:

3/10

Tags:

n/a

Link:

https://tria.ge/reports/261021-xleqgavyhs/

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/bf1e4eb4e30c00d2b68cc9e7e68123c28ddde4f906ec39ba93f94467aadc30fd

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_03a7ca91 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (class, etat binaire)

Rule name:	JAVA_Malware_Unknown_ForgeAuto_0ece8eba Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (class, etat binaire)

Rule name:	JAVA_Malware_Unknown_ForgeAuto_1fde0fe5 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (class, etat binaire)

Rule name:	JAVA_Malware_Unknown_ForgeAuto_50b45f1d Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (class, etat binaire)

Rule name:	JAVA_Malware_Unknown_ForgeAuto_5888acd8 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (class, etat binaire)

Rule name:	JAVA_Malware_Unknown_ForgeAuto_61773a0a Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (class, etat binaire)

Rule name:	SilentNet_CharArith_Obfuscation Create hunting rule
Author:	NyxIndius
Description:	Detects Java class with char-arithmetic string obfuscation (ldc/sipush A - B, isub, i2c) in volume

Rule name:	SilentNet_FakeFabric_Jar_Container Create hunting rule
Author:	NyxIndius
Description:	Detects fake Fabric mod JAR with net/fabric/ package (not net/fabricmc/) and random class names, associated with SilentNet loader/stealer

Rule name:	SilentNet_FakeFabric_Metadata Create hunting rule
Author:	NyxIndius
Description:	Detects MANIFEST or fabric.mod.json pointing to a net.fabric.* entrypoint (fake Fabric mod, SilentNet)

Rule name:	SilentNet_FakeFabric_Mod_Jar Create hunting rule
Author:	NyxIndius
Description:	Detects SilentNet Minecraft stealer fake Fabric mod JAR: fabric.mod.json plus random-named classes directly under com/github/ or net/fabric/ (incl. inner classes), without net/fabricmc/

Rule name:	SilentNet_Loader_Class Create hunting rule
Author:	NyxIndius
Description:	Detects SilentNet Java loader/stealer class: char-arith obfuscation plus launcher, dropper, custom HTTPS/DoH client or Minecraft session reflection