MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f689dac39198a2b5b8bb1c142a24d869d3e95fffd13bb7a73e5a69a35dc274f5. 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: f689dac39198a2b5b8bb1c142a24d869d3e95fffd13bb7a73e5a69a35dc274f5
SHA3-384 hash: f0fd57bfee549274961a909574064178207ae9734b1ff5c9fa8cf2f174ce1eb1e14f019bc771f7e8b408af3db1b3fc29
SHA1 hash: 865e112bdc01a5b22bb286c884c1107c01c75f61
MD5 hash: 763b54ccc032c9a40ff95543b235595e
humanhash: leopard-purple-hydrogen-pizza
File name:krypton client -1.21.11-84i.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:4'854'435 bytes
First seen:2026-07-24 09:59:27 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 98304:kcoPM00THoXH8kqS2SKrs1tw4cqTdL0GFgGf3Uw1N:NqbondS2mtwBqTJ0ogM3Nf
TLSH T1CC26F121DA5D003AF833FB339042B9E174FBEF91520BF06A3A79154D8859A838F7E556
TrID 77.1% (.JAR) Java Archive (13500/1/2)
22.8% (.ZIP) ZIP compressed archive (4000/1)
Magika jar
Reporter burger
Tags:jar SilentNet

Intelligence

File Origin
# of uploads :
1
# of downloads :
97
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/75908/
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/f689dac39198a2b5b8bb1c142a24d869d3e95fffd13bb7a73e5a69a35dc274f5
Result
Threat name:
SilentNet
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1947573
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
Loading BitLocker PowerShell Module
Modifies the windows firewall
Multi AV Scanner detection for dropped file
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 to foreign memory regions
Yara detected SilentNet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1947573 Sample: krypton client -1.21.11-84i.jar Startdate: 24/07/2026 Architecture: WINDOWS Score: 100 125 thisisafalsepositive.st 2->125 127 pypi.org 2->127 129 3 other IPs or domains 2->129 145 Suricata IDS alerts for network traffic 2->145 147 Multi AV Scanner detection for dropped file 2->147 149 Yara detected SilentNet 2->149 151 10 other signatures 2->151 12 cmd.exe 1 2->12         started        14 powershell.exe 2->14         started        17 powershell.exe 2->17         started        signatures3 process4 signatures5 19 java.exe 5 12->19         started        22 conhost.exe 12->22         started        175 Loading BitLocker PowerShell Module 14->175 24 conhost.exe 14->24         started        26 conhost.exe 17->26         started        process6 signatures7 153 Found many strings related to Crypto-Wallets (likely being stolen) 19->153 28 javaw.exe 884 19->28         started        process8 dnsIp9 139 132.145.155.63, 443, 49722, 49731 ORACLE-BMC-31898-OracleCorporationUS United States 28->139 141 198.178.224.35, 443, 49717 LATITUDE-SH-LatitudeshUS United States 28->141 143 thisisafalsepositive.st 185.178.208.191, 443, 49725, 49726 DDOS-GUARDRU Russia 28->143 111 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 28->111 dropped 113 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 28->113 dropped 115 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 28->115 dropped 117 623 other malicious files 28->117 dropped 177 Inline Python code execution detected 28->177 33 python.exe 218 28->33         started        file10 signatures11 process12 dnsIp13 119 185.209.176.58, 443, 49729 LATITUDE-SH-LatitudeshUS United States 33->119 121 151.101.0.175, 443, 49742 FASTLY-FastlyIncUS Canada 33->121 123 3 other IPs or domains 33->123 87 C:\Users\user\AppData\...\tmptj3g6t9l.tmp, PE32+ 33->87 dropped 89 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 33->89 dropped 91 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 33->91 dropped 93 32 other malicious files 33->93 dropped 155 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->155 157 Found many strings related to Crypto-Wallets (likely being stolen) 33->157 159 Tries to harvest and steal browser information (history, passwords, etc) 33->159 161 4 other signatures 33->161 38 pip.exe 33->38         started        40 python.exe 33->40         started        45 python.exe 33->45         started        47 2 other processes 33->47 file14 signatures15 process16 dnsIp17 49 python.exe 38->49         started        52 conhost.exe 38->52         started        131 pypi.org 151.101.64.223, 443, 49752, 49754 FASTLY-FastlyIncUS Canada 40->131 95 C:\Users\user\AppData\Local\...\pip3.exe, PE32+ 40->95 dropped 97 C:\Users\user\AppData\Local\...\pip3.12.exe, PE32+ 40->97 dropped 99 C:\Users\user\AppData\Local\...\pip.exe, PE32+ 40->99 dropped 107 378 other malicious files 40->107 dropped 165 Suspicious powershell command line found 40->165 167 Uses schtasks.exe or at.exe to add and modify task schedules 40->167 169 Uses netsh to modify the Windows network and firewall settings 40->169 173 2 other signatures 40->173 54 conhost.exe 40->54         started        133 150.136.141.142 ORACLE-BMC-31898-OracleCorporationUS United States 45->133 135 142.251.155.119 GOOGLE-GoogleLLCUS United States 45->135 137 23.61.213.25 AKAMAI-AS-AkamaiTechnologiesIncUS United States 45->137 101 C:\Recovery\OEM\...\RuntimeBroker.exe, PE32+ 45->101 dropped 103 C:\Users\user\AppData\Local\...\stdole.py, Python 45->103 dropped 105 _78530B68_61F9_11D...A024580902_0_1_0.py, Python 45->105 dropped 109 4 other malicious files 45->109 dropped 171 Adds a directory exclusion to Windows Defender 45->171 56 powershell.exe 45->56         started        59 powershell.exe 45->59         started        61 powershell.exe 45->61         started        63 7 other processes 45->63 file18 signatures19 process20 file21 79 C:\Users\user\AppData\Local\...\wsdump.exe, PE32+ 49->79 dropped 81 C:\Users\user\AppData\...\cffi-gen-src.exe, PE32+ 49->81 dropped 83 C:\Users\user\AppData\Local\...\win32wnet.pyd, PE32+ 49->83 dropped 85 524 other malicious files 49->85 dropped 163 Loading BitLocker PowerShell Module 56->163 65 conhost.exe 56->65         started        67 conhost.exe 59->67         started        69 conhost.exe 61->69         started        71 conhost.exe 63->71         started        73 conhost.exe 63->73         started        75 conhost.exe 63->75         started        77 3 other processes 63->77 signatures22 process23
Score:
13%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/f689dac39198a2b5b8bb1c142a24d869d3e95fffd13bb7a73e5a69a35dc274f5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f689dac39198a2b5b8bb1c142a24d869d3e95fffd13bb7a73e5a69a35dc274f5/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=62e5vq4rtcrllof3dqkcujgynhj6sx772e53pjz6lju2gxocot2q._file
Result
Malware family:
silentnet
Create hunting rule
Score:
  10/10
Tags:
family:silentnet stealer
Link:
https://tria.ge/reports/260724-l1d7psfe68/
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/f689dac39198a2b5b8bb1c142a24d869d3e95fffd13bb7a73e5a69a35dc274f5

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/75908/

Comments