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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c. 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: 8


Intelligence 8 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c
SHA3-384 hash: 93b9dec9ec95e35366826434e9b2aa8a46aa48359f1706b8d1e0afc2fcefb6b08ad4ba4e1a7590408c1eb821aa8ba9b5
SHA1 hash: 3ddf254f4f6809472cfe41f316185160e5c890b1
MD5 hash: edc9f85b95a8119fd141e29719a919cf
humanhash: mountain-delta-monkey-red
File name:KryptonCleint1.21.11.jar
Download: download sample
Signature Silentnet
Create hunting rule
File size:66'106 bytes
First seen:2026-11-05 19:12:35 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 1536:3TB4oIk+UFNgDxjtGZPNpy4fMSvlwGr9H+ZR4IaoFv4:N48+aN0tGtjbfMStrFIa0g
TLSH T1F753F23D39CD8860F08BC1396560F27BCA51A1EBE989907A0C53D159EC23DD8EB65ECD
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 :
1
# of downloads :
90
Origin country :
AT AT
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
Malicious activity
Analysis date:
2026-11-05 19:19:55 UTC
Tags:
silentnet stealer etherhiding evasion python arch-exec arch-doc auto generic openssl tool
Link:
https://app.any.run/tasks/88e47a18-b6de-46f8-8871-207051cea332

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/97443/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aecd54853b50bbc1bc6534f
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6aecd547dd9b578b97c2e916/reports/09e908d8-102f-491a-a99f-d00e219d9542/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c
Result
Malware family:
Silentnet
Create hunting rule
Verdict:
Malicious
Trusted hash?:
False
File:
10
Classes:
8
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:
Unknown
File Type:
jar
Link:
https://opentip.kaspersky.com/367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c/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/1999271
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
Found many strings related to Crypto-Wallets (likely being stolen)
Inline Python code execution detected
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: 1999271 Sample: KryptonCleint1.21.11.jar Startdate: 05/11/2026 Architecture: WINDOWS Score: 100 123 thisisafalsepositive.st 2->123 125 files.pythonhosted.org 2->125 127 3 other IPs or domains 2->127 151 Suricata IDS alerts for network traffic 2->151 153 Yara detected SilentNet 2->153 155 Yara detected Python Keylogger 2->155 157 11 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        21 conhost.exe 12->21         started        23 conhost.exe 14->23         started        25 conhost.exe 16->25         started        signatures6 141 Found many strings related to Crypto-Wallets (likely being stolen) 18->141 27 javaw.exe 915 18->27         started        process7 dnsIp8 137 thisisafalsepositive.st 185.178.208.191, 443, 49702, 49712 DDOS-GUARDRU Russia 27->137 139 104.20.46.180, 443, 49700 CLOUDFLARENET-CloudflareIncUS Canada 27->139 109 C:\Users\user\AppData\Local\...\python.exe, PE32+ 27->109 dropped 111 C:\Users\user\AppData\Local\...\python312.zip, Zip 27->111 dropped 113 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 27->113 dropped 115 649 other files (1 malicious) 27->115 dropped 169 Inline Python code execution detected 27->169 32 python.exe 217 27->32         started        file9 signatures10 process11 dnsIp12 117 208.91.109.46, 443, 49717 TERASWITCH-TeraSwitchNetworksIncUS Japan 32->117 119 198.178.224.35, 443, 49715 LATITUDE-SH-LatitudeshUS United States 32->119 121 4 other IPs or domains 32->121 77 C:\Users\user\AppData\Local\...\python.exe, PE32+ 32->77 dropped 79 C:\Users\user\AppData\...\tmp_y2xwedwd.zip, Zip 32->79 dropped 81 C:\Users\user\AppData\Local\...\python312.zip, Zip 32->81 dropped 83 34 other files (1 malicious) 32->83 dropped 143 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 32->143 145 Found many strings related to Crypto-Wallets (likely being stolen) 32->145 147 Tries to harvest and steal browser information (history, passwords, etc) 32->147 149 5 other signatures 32->149 37 python.exe 1272 32->37         started        42 pip.exe 32->42         started        44 python.exe 32->44         started        46 2 other processes 32->46 file13 signatures14 process15 dnsIp16 129 pypi.org 151.101.0.223, 443, 49739, 49740 FASTLY-FastlyIncUS Canada 37->129 93 C:\Users\user\AppData\Local\Temp\...\wait.py, Python 37->93 dropped 95 C:\Users\user\AppData\Local\Temp\...\util.py, Python 37->95 dropped 97 C:\Users\user\AppData\Local\Temp\...\url.py, Python 37->97 dropped 105 798 other files (none is malicious) 37->105 dropped 159 Suspicious powershell command line found 37->159 161 Uses schtasks.exe or at.exe to add and modify task schedules 37->161 163 Uses netsh to modify the Windows network and firewall settings 37->163 167 3 other signatures 37->167 48 conhost.exe 37->48         started        50 python.exe 42->50         started        53 conhost.exe 42->53         started        131 64.31.48.194 LIMESTONENETWORKS-LimestoneNetworksIncUS Japan 44->131 133 142.251.154.119 GOOGLE-GoogleLLCUS United States 44->133 135 2 other IPs or domains 44->135 99 C:\Recovery\OEM\...\RuntimeBroker.exe, PE32+ 44->99 dropped 101 C:\Users\user\AppData\Local\...\stdole.py, Python 44->101 dropped 103 _78530B68_61F9_11D...A024580902_0_1_0.py, Python 44->103 dropped 107 4 other files (none is malicious) 44->107 dropped 165 Adds a directory exclusion to Windows Defender 44->165 55 powershell.exe 44->55         started        57 powershell.exe 44->57         started        59 powershell.exe 44->59         started        61 12 other processes 44->61 file17 signatures18 process19 file20 85 49583e7972e864a609...e7.bodywzhyujtg.tmp, Python 50->85 dropped 87 C:\Users\user\AppData\Local\...\tmpu7hdn1zh, Zip 50->87 dropped 89 C:\Users\user\AppData\Local\...\tmpt4l4065m, Zip 50->89 dropped 91 228 other files (15 malicious) 50->91 dropped 63 conhost.exe 55->63         started        65 conhost.exe 57->65         started        67 conhost.exe 59->67         started        69 conhost.exe 61->69         started        71 conhost.exe 61->71         started        73 conhost.exe 61->73         started        75 8 other processes 61->75 process21
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c/
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-11-05 19:13:23 UTC
File Type:
Binary (Archive)
Extracted files:
10
AV detection:
5 of 38 (13.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gz536drse5vrmnxtuot46ibfhftd55cik7pctvmo77l3tmuu5vwa._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261105-xw5pmsy12q/
Malware Family:
java
Create hunting rule
Malicious:
True
Tags:
jar sets-process-name detect-debug-environment checks-cpu-name
Link:
https://intel.virussign.com/intelligence/file/367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c
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/367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c

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: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:SilentNet_CharArith_Obfuscation
Create hunting rule
Author:NyxIndius
Description:Detects Java class with char-arithmetic string obfuscation (ldc/sipush A - B, isub, i2c) in volume
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_Metadata
Create hunting rule
Author:NyxIndius
Description:Detects MANIFEST or fabric.mod.json pointing to a net.fabric.* entrypoint (fake Fabric mod, SilentNet)
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/
Rule name:SilentNet_Loader_Class
Create hunting rule
Author:NyxIndius
Description:Detects SilentNet Java loader/stealer class: char-arith obfuscation plus launcher, dropper, custom HTTPS/DoH client or Minecraft session reflection

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 367bbf0e32276b1636f3a3a7cf202539663ef44857de29d58effd7b9b294ed6c

(this sample)

  
Dropping
SilentNet
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/97443/

Comments