🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526
SHA3-384 hash: 2fea42cee0c0267c4e55129ab5be9f65ffb24fe4ff28dbf6b3a66a5dc9706b23edc8ade1d7dba1d7c0e159de23b38465
SHA1 hash: 0a894a59479dbcaa15c8ce4c12c7091d2178895d
MD5 hash: ea9d1d826f4cbb641bd646ca756ea1b6
humanhash: nevada-jig-cat-undress
File name:ImmediatelyFast.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:1'371'832 bytes
First seen:2026-10-01 14:41:30 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 24576:kUK3RxF1apEdgvhCOXJeBcuhkR6eOPPR1rb3cnIyQDrIQ+oSEKMuXCjCKt2lVrCG:knxF1UzZCMeBXkR6JPJ1rbsnTagEHuS+
TLSH T1DB552306B13C0C2AD7AF8133BD840B62A4C903C4C91AA12E45BD5DD699D3DA74F6D7FA
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter C0RSA
Tags:donutsmp EtherHiding ImmediatelyFast jar java SilentNet


Avatar
C0RSA
silentnet-family Minecraft stealer. ImmediatelyFast.jar - repack of 'ImmediatelyFast' with injected entrypoint com.github.zVq.
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 :
56
Origin country :
GB GB
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
Malicious activity
Analysis date:
2026-10-01 15:57:24 UTC
Tags:
silentnet stealer python evasion auto generic openssl tool
Link:
https://app.any.run/tasks/b59f376b-926d-47ae-898e-9cce77a8ee98

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/90092/
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
macros-on-open
Link:
https://www.filescan.io/uploads/6abe71529c3292c178c39e0b/reports/077f13f7-9fa5-409e-92ab-a78a690c5437/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526
Verdict:
Malicious
File Type:
jar
First seen:
2026-08-25T01:04:00Z UTC
Last seen:
2026-09-03T22:07:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526/results?tab=lookup
Score:
35%
Verdict:
Susipicious
File Type:
ARCHIVE
Link:
https://malprob.io/report/ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526/
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-08-25 06:28:05 UTC
File Type:
Binary (Archive)
Extracted files:
278
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=75jphmbs55g6ihqfkuac4yuh557zazg4r67biupjryibkhc34uta._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261001-r25nya1gpe/
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/ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526

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

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 ff52f3b032ef4de41e0555002e6287ef7f9064dc8fbe1451e98e10151c5be526

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/90092/

Comments