MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab8bf8682aeb971caf9a6d9a0dbeeec77f8e629d81cdcfa8ae210ea2146afb4d. 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 8 File information Comments

SHA256 hash:	ab8bf8682aeb971caf9a6d9a0dbeeec77f8e629d81cdcfa8ae210ea2146afb4d
SHA3-384 hash:	ec20e535d4e3c41c7fd55075cc382a984d815f1760cfb1f5185e3e1574eb1bbd1881b4a8520443c7b1279b192ad90ad3
SHA1 hash:	19b580b8324a132629c54d65b6eaac37c8e5aeee
MD5 hash:	bd4c1147e3a2ac05580281b73b32392a
humanhash:	wyoming-hamper-charlie-venus
File name:	KryptonClient-1.21.11.jar
Download:	download sample
Signature	SilentNet Create hunting rule
File size:	993'121 bytes
First seen:	2026-09-23 13:57:12 UTC
Last seen:	Never
File type:	jar
MIME type:	application/zip
ssdeep	24576:mUsj4elUB5dASovLcvaOWDwWu+++VxisDZUbDHDHgg5LsSe:ts8LBASovLcvaTLuKVUTDHFO
TLSH	T1C52533EE51C1B973E724E93611B0E512CF4D9EB8A918ED0B392E2E758065014AB7E1FC
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 :

101

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

KryptonClient-1.21.11.jar

Verdict:

Malicious activity

Analysis date:

2026-09-23 13:53:49 UTC

Tags:

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

Link:

https://app.any.run/tasks/e2f8094f-9b17-446c-b461-63b6160efc6a

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/88630/

Detection(s):

SecuriteInfo.com.Java.Agent.ADG.tr.22216.31851.UNOFFICIAL

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/6ab3daccd32e54fd031afb7f/reports/72bba62e-3ec8-43a8-9b81-912483ca8aed/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/ab8bf8682aeb971caf9a6d9a0dbeeec77f8e629d81cdcfa8ae210ea2146afb4d

Verdict:

Malicious

File Type:

jar

First seen:

2026-09-23T12:11:00Z UTC

Last seen:

2026-09-24T09:43:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/ab8bf8682aeb971caf9a6d9a0dbeeec77f8e629d81cdcfa8ae210ea2146afb4d/results?tab=lookup

Score:

Verdict:

Benign

File Type:

Result

Malware family:

n/a

Score:

3/10

Tags:

n/a

Link:

https://tria.ge/reports/260923-q9e8ksch87/

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/ab8bf8682aeb971caf9a6d9a0dbeeec77f8e629d81cdcfa8ae210ea2146afb4d

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:	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

Rule name:	MULTI_PUA_FabricMod_PackageIcon_LicenseGithub Create hunting rule
Author:	Marjoriefort
Description:	Mod Minecraft Fabric (structure package + LICENSE_github) soumis en masse - PUA/mods, pattern de soumission
Reference:	misses_archive / grappe 9 archives