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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5. 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: 4


Intelligence 4 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5
SHA3-384 hash: 25290d3d53ee233b40717574061345a10794deebcbd25d44ec30d1b6ace2301f8829a334f1f98fc7efeb54d89a6ed319
SHA1 hash: 05a30fa977d3191b0b44fa7e331e42a0deb99ad6
MD5 hash: b9de23bded1e66c6e4d31f7c05d2b54d
humanhash: georgia-river-missouri-fanta
File name:Gooba-cracked-1.21.11.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:19'750'867 bytes
First seen:2026-10-01 14:39:36 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 393216:lrC+rCxu0keY1eWdB3IHr9ODWMMsap9NEFZuLi50K2XbgCP0SX:lrrxJeY1eG3ILsq1po2W5xOfMC
TLSH T12817335154B83B25DB373230885C4ED2B66C0284C2CEB5ADAAF89FE5B4934C3CF5656A
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika apk
Reporter C0RSA
Tags:donutsmp EtherHiding Goobaa jar java SilentNet


Avatar
C0RSA
silentnet-family Minecraft stealer. Gooba-cracked-1.21.11.jar - repack of 'Goobaa' with injected entrypoint com.github.brm.
Campaign tag: 9ebad53b-2661-4d29-bfc3-6f7b705b68b3
Steals MC session (username, UUID, accessToken) -> POST /shard/prefireMc, then PNG-stego second stage -> portable Python -> main.py. Uploads latest.log -> /shard/submitMinecraftLog.
C2 via Polygon contract 0x9c0a507300fd902787bb193d80fca5ce6e1bff9a (selector 0xce6d41de).
Stage 2: /cdn/v2/9f4e7a2c1b8d.png
Headers: X-Edge-Cache-Revalidate, X-Runtime-Env
Resolves C2 via DoH (cloudflare-dns.com / 1.1.1.1).

Intelligence

File Origin
# of uploads :
1
# of downloads :
57
Origin country :
GB GB
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
No threats detected
Analysis date:
2026-10-01 15:07:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a106486f-f599-413b-8c10-75bd49969698

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/90088/
Verdict:
Clean
Score:
89.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6acead89350c7ee8cc1536bd
Tags:
n/a
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-vm
Link:
https://www.filescan.io/uploads/6abe70d47b2ad7f818ff3b45/reports/64d95e5d-718a-4b76-bcde-a0ad598eee80/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5
Verdict:
Malicious
File Type:
jar
First seen:
2026-09-19T23:59:00Z UTC
Last seen:
2026-10-01T13:53:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5/results?tab=lookup
Score:
33%
Verdict:
Susipicious
File Type:
ARCHIVE
Link:
https://malprob.io/report/b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xh3k7cm765pq27cage3glq6377siudl3bdl3z5pydcw3c5dyc6sq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261001-r1zfja1y2r/
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/b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5

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: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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

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 b9f6af899ff75f0d7c40313665c3dbffe48a0d7b08d7bcf5f818adb1747817a5

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/90088/

Comments