MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 823590a0376fc1f0663f0d49ccfa76b16591e0b31dff98cf5bbc2b08699367fd. 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

Threat unknown

Vendor detections: 4

Intelligence 4 IOCs YARA 10 File information Comments

SHA256 hash:	823590a0376fc1f0663f0d49ccfa76b16591e0b31dff98cf5bbc2b08699367fd
SHA3-384 hash:	5c2c26faf32ea74bb1e32110ac086bb756e464373d0f5c099adce278c14b0b86691da7158eab508231af643760abe6e4
SHA1 hash:	5c3997b7e824bc136b604a9100853582418ed928
MD5 hash:	03dc52e991495a1c7823782ca2ffe98e
humanhash:	video-vermont-batman-one
File name:	Echo Client.jar
Download:	download sample
File size:	3'420'322 bytes
First seen:	2026-09-25 16:59:15 UTC
Last seen:	Never
File type:	jar
MIME type:	application/zip
ssdeep	98304:+MzCZyHlKykYM8VW2mPL54y8zHPwedSy0nGULyQUM7fwX/:+MzngPqPmPL2yp67QIR/
TLSH	T13BF533021D7D336BCA9E5EEA1C7D4C6FA24AFC64BBC5278250E6CA5257087850D4E3CB
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 :

110

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

Echo Client.jar

Verdict:

Malicious activity

Analysis date:

2026-09-25 16:36:44 UTC

Tags:

silentnet stealer python arch-exec arch-doc evasion

Link:

https://app.any.run/tasks/045b1b6d-af88-465e-96a2-ac18da46b8d3

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/89007/

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/6ab6a8aba0e06fbce9b20faa/reports/b8b7b284-ab22-4d00-be4b-0e5908b3d536/overview

Verdict:

Suspicious

Link:

https://www.hybrid-analysis.com/sample/823590a0376fc1f0663f0d49ccfa76b16591e0b31dff98cf5bbc2b08699367fd

Score:

Verdict:

Benign

File Type:

Result

Malware family:

silentnet

Score:

10/10

Tags:

family:silentnet stealer

Link:

https://tria.ge/reports/260925-vhhxls1fqa/

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/823590a0376fc1f0663f0d49ccfa76b16591e0b31dff98cf5bbc2b08699367fd

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:	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