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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6
SHA3-384 hash: 1c6288cc30cb133a8a326e358176fef07f743dc3d8a3335031f26bff6772850f01c0c9b325644b1a3255c0f0a8ad45f2
SHA1 hash: c75995ff7cf93a8693f0b43ed5c9427a8bdbf9da
MD5 hash: 74b244b4f4b5bcf9deebb2181bf29dd7
humanhash: happy-wolfram-mockingbird-oscar
File name:1trouser-streak-1.4.5-1.21.4-.jar
Download: download sample
Signature Silentnet
Create hunting rule
File size:3'503'332 bytes
First seen:2026-11-04 23:30:26 UTC
Last seen:Never
File type:Java file jar
MIME type:application/java-archive
ssdeep 98304:CrL4KIKiT6KXXRWvvpvso4+NyQAFxOWM2fIvj:AL4iiT6kWpEoRyQMdzAvj
TLSH T1D4F533566963098ECA746634BC63C8C19CFE94DC948DB11902F4E641E843EFF1BA267F
TrID 57.8% (.JAR) Minecraft Fabric Mod (24020/2/4)
32.5% (.JAR) Java Archive (13500/1/2)
9.6% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter GhostTypes
Tags:EtherHiding jar minecraft SilentNet stealer


Avatar
GhostTypes
Trojanized "Trouser Streak" addon for Meteor Client (Fabric mod). Injected loader class: net/fabric/zfod. All other classes are the genuine upstream addon.

Loader behavior:
- Decrypts its config at runtime by composing strings character-by-character (anti static-analysis).
- Config points to a Polygon smart contract: 0x9c0a507300fd902787bb193d80fca5ce6e1bff9a. The C2 host is read from this contract (EtherHiding).
- Reaches the contract through public Polygon RPC failover: polygon.drpc.org, polygon-bor-rpc.publicnode.com, 1rpc.io/matic, api.zan.top/polygon-mainnet, rpc-mainnet.matic.quiknode.pro.
- Fallback C2 host: thisisafalsepositive.st. Beacon path: /shard/prefireMc.
- Fetches stage 2 from the C2 and loads it in memory. No file lands on disk. Stage 2 of this family is an infostealer: browser passwords and cookies (Chromium, Firefox), desktop and browser-extension crypto wallets, Discord tokens, Minecraft launcher accounts, Roblox.
- Spawns processes via ProcessBuilder. Persistence names: "install Microsoft", "install NtProfileIndex".

IOC: build/batch UUID in config: cd97b538-1811-4f60-b5c9-424af0797a0e. The same UUID marks 8 trojanized addons from this batch, all uploaded to MalwareBazaar.

Family: SilentNet (smart-contract C2 malware-as-a-service). Source: Discord server "Meteor Addons Shop" (invite discord.gg/YS7UAds3a, server id 1563553330951618630), posted 2026-11-04. The server distributes free Meteor addons as trojanized files.
Original distribution URL: https://cdn.discordapp.com/attachments/1567342654432485556/1567342984519884820/1trouser-streak-1.4.5-1.21.4-.jar

Intelligence

File Origin
# of uploads :
1
# of downloads :
91
Origin country :
FR FR
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
Malicious activity
Analysis date:
2026-11-04 23:40:48 UTC
Tags:
silentnet stealer etherhiding evasion python arch-exec arch-doc auto generic openssl tool
Link:
https://app.any.run/tasks/6ad667e2-7ca6-4d94-98e7-b9dcfdb7c055

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/97254/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aebc0407d28ff7e598caf6e
Tags:
shellcode sage
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a service
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-debug obfuscated
Link:
https://www.filescan.io/uploads/6aebc03eff64543a67dbf2ac/reports/ddcc6132-bb0a-4f15-9861-96f39a560686/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6
Result
Malware family:
Silentnet
Create hunting rule
Verdict:
Malicious
Trusted hash?:
False
File:
146
Classes:
139
Nested archives:
0
Source:
https://www.jarscanner.org/
Findings
Minecraft session theft indicators: Code associated with Minecraft session-token collection was found.
Silentnet signature: Known Silentnet data path was found.
External process execution: ProcessBuilder can execute operating-system commands.
User-Agent: May indicate outbound HTTP requests or client impersonation.
Verdict:
Malicious
File Type:
jar
Link:
https://opentip.kaspersky.com/3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6/results?tab=lookup
Result
Threat name:
SilentNet
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1998602
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Exploit detected, runtime environment starts unknown processes
Joe Sandbox ML detected suspicious sample
Modifies the windows firewall
Potential Privilege Escalation using Task Scheduler highest RunLevel
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Schedule system process
Sigma detected: Schtasks Creation Or Modification With SYSTEM Privileges
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Writes many files with high entropy
Writes to foreign memory regions
Yara detected Python Keylogger
Yara detected SilentNet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1998602 Sample: 1trouser-streak-1.4.5-1.21.4-.jar Startdate: 05/11/2026 Architecture: WINDOWS Score: 100 119 files.pythonhosted.org 2->119 121 pypi.org 2->121 123 2 other IPs or domains 2->123 151 Suricata IDS alerts for network traffic 2->151 153 Yara detected SilentNet 2->153 155 Yara detected Python Keylogger 2->155 157 10 other signatures 2->157 12 cmd.exe 1 2->12         started        14 powershell.exe 2->14         started        16 powershell.exe 2->16         started        signatures3 process4 process5 18 java.exe 5 12->18         started        20 conhost.exe 12->20         started        22 conhost.exe 14->22         started        24 conhost.exe 16->24         started        process6 26 javaw.exe 915 18->26         started        dnsIp7 133 185.178.208.191, 443, 49705, 49714 DDOS-GUARDRU Russia 26->133 135 104.20.46.180, 443, 49702 CLOUDFLARENET-CloudflareIncUS Canada 26->135 103 C:\Users\user\AppData\Local\...\python.exe, PE32+ 26->103 dropped 105 C:\Users\user\AppData\Local\...\python312.zip, Zip 26->105 dropped 107 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 26->107 dropped 109 649 other files (none is malicious) 26->109 dropped 30 python.exe 217 26->30         started        file8 process9 dnsIp10 137 64.130.32.46, 443, 49719 TERASWITCH-TeraSwitchNetworksIncUS Germany 30->137 139 198.178.224.35, 443, 49717 LATITUDE-SH-LatitudeshUS United States 30->139 141 4 other IPs or domains 30->141 111 C:\Users\user\AppData\Local\...\python.exe, PE32+ 30->111 dropped 113 C:\Users\user\AppData\...\tmp_py7nje3b.zip, Zip 30->113 dropped 115 C:\Users\user\AppData\Local\...\python312.zip, Zip 30->115 dropped 117 34 other files (1 malicious) 30->117 dropped 143 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 30->143 145 Tries to harvest and steal browser information (history, passwords, etc) 30->145 147 Writes to foreign memory regions 30->147 149 3 other signatures 30->149 35 python.exe 30->35         started        40 pip.exe 30->40         started        42 python.exe 30->42         started        44 2 other processes 30->44 file11 signatures12 process13 dnsIp14 125 dualstack.python.map.fastly.net 151.101.0.223, 443, 49742, 49746 FASTLY-FastlyIncUS Canada 35->125 87 C:\Users\user\AppData\Local\Temp\...\wait.py, Python 35->87 dropped 89 C:\Users\user\AppData\Local\Temp\...\util.py, Python 35->89 dropped 91 C:\Users\user\...\ssl_match_hostname.py, Python 35->91 dropped 99 801 other files (none is malicious) 35->99 dropped 159 Suspicious powershell command line found 35->159 161 Uses schtasks.exe or at.exe to add and modify task schedules 35->161 163 Uses netsh to modify the Windows network and firewall settings 35->163 167 3 other signatures 35->167 46 conhost.exe 35->46         started        48 cmd.exe 35->48         started        50 python.exe 40->50         started        53 conhost.exe 40->53         started        127 208.115.201.238 LIMESTONENETWORKS-LimestoneNetworksIncUS Germany 42->127 129 142.251.151.119 GOOGLE-GoogleLLCUS United States 42->129 131 2 other IPs or domains 42->131 93 C:\Recovery\OEM\...\RuntimeBroker.exe, PE32+ 42->93 dropped 95 C:\Users\user\AppData\Local\...\stdole.py, Python 42->95 dropped 97 _78530B68_61F9_11D...A024580902_0_1_0.py, Python 42->97 dropped 101 4 other files (none is malicious) 42->101 dropped 165 Adds a directory exclusion to Windows Defender 42->165 55 powershell.exe 42->55         started        57 powershell.exe 42->57         started        59 powershell.exe 42->59         started        61 12 other processes 42->61 file15 signatures16 process17 file18 79 c12a6c1abf873b61f0...ce83883.body (copy), Python 50->79 dropped 81 95ad9cf1790ae51303...729f24d.body (copy), Python 50->81 dropped 83 49583e7972e864a609...ef5e4e7.body (copy), Python 50->83 dropped 85 225 other files (18 malicious) 50->85 dropped 63 cmd.exe 50->63         started        65 conhost.exe 55->65         started        67 conhost.exe 57->67         started        69 conhost.exe 59->69         started        71 conhost.exe 61->71         started        73 conhost.exe 61->73         started        75 conhost.exe 61->75         started        77 8 other processes 61->77 process19
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6/
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-11-04 23:31:31 UTC
File Type:
Binary (Archive)
Extracted files:
146
AV detection:
5 of 38 (13.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hfe6ecwtn37yg2ad3rjwgqgc7r67emxm6ijbmn46slf57z247x3a._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261104-3hr5aav1aw/
Malware Family:
java
Create hunting rule
Malicious:
True
Tags:
checks-cpu-name sets-process-name jar detect-debug-environment
Link:
https://intel.virussign.com/intelligence/file/3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6
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/3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6

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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:SilentNet_FakeFabric_Jar_Container
Create hunting rule
Author:NyxIndius
Description:Detects fake Fabric mod JAR with net/fabric/ package (not net/fabricmc/) and random class names, associated with SilentNet loader/stealer
Rule name:SilentNet_FakeFabric_Mod_Jar
Create hunting rule
Author:NyxIndius
Description:Detects SilentNet Minecraft stealer fake Fabric mod JAR: fabric.mod.json plus random-named classes directly under com/github/ or net/fabric/ (incl. inner classes), without net/fabricmc/

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 3949e20ad36eff836803dc536340c2fc7df232ecf21216379e92cbdfe75cfdf6

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/97254/

Comments