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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b
SHA3-384 hash: 3c8b9ead1b11489d8c20ef5589bfe4e82bb950038cdab868d7ccc63303b51102efcd081a23774de68fb3669e9763ec2b
SHA1 hash: 2ea40c7b174c832a5cb2a70e1d7824d058773f85
MD5 hash: 4598c2063da716a96270901a7b72cbf4
humanhash: louisiana-jig-mexico-spring
File name:ImmediatelyFast 1.3.3.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:422'579 bytes
First seen:2026-10-01 14:40:56 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 6144:IM1PbMQWwIMUngmPnS6XI3FWLBq89C1al3e2uUafi5bcSA6nP9Zfw:NjMQWWyY641Wk8jl33fafAbV/w
TLSH T16494F166DA0D04EEE627B237ED004B397C57A3C97046911F27789C83448B5BB4F792AE
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 1.3.3.jar - repack of 'ImmediatelyFast' with injected entrypoint com.github.jjoZruhkz.
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/e/3b8f6d2a9c1e
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 :
47
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 16:08:54 UTC
Tags:
silentnet stealer python evasion arch-exec arch-doc auto generic openssl tool
Link:
https://app.any.run/tasks/61566f7f-6c32-43b3-a0f0-fe75d20d8796

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/90091/
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6abe71147b2ad7f818ff3d0b/reports/8d40f319-d81f-429a-996b-8aead022f882/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b
Verdict:
Malicious
File Type:
jar
First seen:
2026-09-20T19:30:00Z UTC
Last seen:
2026-09-20T20:02:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b/results?tab=lookup
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b/
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-09-20 14:56:41 UTC
File Type:
Binary (Archive)
Extracted files:
180
AV detection:
7 of 36 (19.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgw4cnzq5j5box6ngpwhsubzg4hh6zcjyxs7oa3gceopopkddmvq._file
Result
Malware family:
silentnet
Create hunting rule
Score:
  10/10
Tags:
family:silentnet stealer
Link:
https://tria.ge/reports/261001-r2kc1a1y4j/
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/91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b

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: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 91adc13730ea7a175fcd33ec795039370e7f6449c5e5f70366111cf73d431b2b

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/90091/

Comments