MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef6d1b0d55f323b7643f216d98ee20415d2ded0f515959f1de257f01675fd9df. 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: 5

Intelligence 5 IOCs YARA 9 File information Comments

SHA256 hash:	ef6d1b0d55f323b7643f216d98ee20415d2ded0f515959f1de257f01675fd9df
SHA3-384 hash:	29626a93bb5dd5ac0ca9558c173c310df93b851af0a8c7d7a742ec79d41ec679fe3ca35ddfe1232c9bc91de7c47ca626
SHA1 hash:	31cced1b29957435a09fb00b748f91f5ce5dbb8c
MD5 hash:	456f8a1b6d9f2fbf37d43c8303d9f2ee
humanhash:	oranges-ack-delta-robin
File name:	DonutDUPE.jar
Download:	download sample
Signature	SilentNet Create hunting rule
File size:	11'538'969 bytes
First seen:	2026-10-10 08:11:03 UTC
Last seen:	2026-10-11 12:01:51 UTC
File type:	jar
MIME type:	application/zip
ssdeep	196608:Pb7hmpg9JVPSQcOTrkssHccqtrHBKzY/l09rgyGypuy7QLjuTN8Kp0Xy4X89Ow1:DUaLTcSHsm1/e9X5cJyeajF9Z
TLSH	T17CC633A09AE40461E54F3DB2BC8D5A2184BFD76B838347D13F951F051BB1894CAED2EB
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:

DonutDUPE.jar

Verdict:

Malicious activity

Analysis date:

2026-10-10 08:04:51 UTC

Tags:

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

Link:

https://app.any.run/tasks/15255992-69c8-4ed4-b2e6-ac1bc8897898

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/91335/

Verdict:

Malicious

Score:

70%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad0aa126f551121ba15eec4

Tags:

malware

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/6ac9f331e55ddcfe8e27e7f5/reports/d8d7071a-6e0d-47a3-9304-264339b934f4/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/ef6d1b0d55f323b7643f216d98ee20415d2ded0f515959f1de257f01675fd9df

Verdict:

Unknown

File Type:

jar

Link:

https://opentip.kaspersky.com/ef6d1b0d55f323b7643f216d98ee20415d2ded0f515959f1de257f01675fd9df/results?tab=lookup

Score:

Verdict:

Benign

File Type:

Result

Malware family:

n/a

Score:

3/10

Tags:

n/a

Link:

https://tria.ge/reports/261010-j3ej5s1zfv/

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_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_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_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