MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5
SHA3-384 hash: ee50198a234f6ee826fd6289d5a03e01ba9a7ccfd05e89142c7944376e3e5af72750377ea1bc877fa42cc912c27983dc
SHA1 hash: 9010df3da34370d7fe5a612a6d5420210c9f99e8
MD5 hash: e26dbc78c562cf8850221d0a93bc4e93
humanhash: lion-eighteen-georgia-eight
File name:Krypton1.21.11.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:4'742'131 bytes
First seen:2026-06-28 08:20:17 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 98304:RHuOiz61Hwlpud0FovfR60PEM1r2GzDHvBuQKj8zgDkisewWZfbr:RHhQl0d0qXGGVzIlj8zPis2Bbr
TLSH T18D26331EA157E16DF2A6D23633255904E153C443F74EB2D397222F13C8FEB69D4A288E
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 :
107
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
Krypton1.21.11.jar
Verdict:
Malicious activity
Analysis date:
2026-06-28 08:19:54 UTC
Tags:
silentnet stealer etherhiding
Link:
https://app.any.run/tasks/fb8e3afb-6c66-4591-8532-5dcf884e6e48

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/72279/
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a40d92586bc95245bfa2c1b
Tags:
java
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6a40d969615901a67ef550bb/reports/e3d6f3da-3e72-4659-b332-48daf5e5d2fc/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5
Verdict:
Malicious
File Type:
jar
First seen:
2026-06-27T21:43:00Z UTC
Last seen:
2026-06-29T19:18:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Java.Generic
Link:
https://opentip.kaspersky.com/64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1934619
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
Loading BitLocker PowerShell Module
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1934619 Sample: Krypton1.21.11.jar Startdate: 28/06/2026 Architecture: WINDOWS Score: 100 119 pypi.org 2->119 121 files.pythonhosted.org 2->121 123 2 other IPs or domains 2->123 155 Suricata IDS alerts for network traffic 2->155 157 Multi AV Scanner detection for dropped file 2->157 159 Multi AV Scanner detection for submitted file 2->159 161 9 other signatures 2->161 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        21 conhost.exe 12->21         started        175 Loading BitLocker PowerShell Module 14->175 23 conhost.exe 14->23         started        25 conhost.exe 17->25         started        process6 process7 27 javaw.exe 884 19->27         started        dnsIp8 135 132.145.155.63, 443, 49689, 49707 ORACLE-BMC-31898-OracleCorporationUS United States 27->135 137 198.178.224.35, 443, 49687, 49705 LATITUDE-SH-LatitudeshUS United States 27->137 139 185.178.208.191, 443, 49693, 49702 DDOS-GUARDRU Russia 27->139 103 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 27->103 dropped 105 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 27->105 dropped 107 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 27->107 dropped 109 623 other malicious files 27->109 dropped 31 python.exe 217 27->31         started        file9 process10 dnsIp11 141 151.101.0.223, 443, 49711 FASTLY-FastlyIncUS Canada 31->141 143 151.101.192.175, 443, 49716 FASTLY-FastlyIncUS Canada 31->143 145 2 other IPs or domains 31->145 79 C:\Users\user\AppData\...\tmpk00fhv1m.tmp, PE32+ 31->79 dropped 81 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 31->81 dropped 83 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 31->83 dropped 85 32 other malicious files 31->85 dropped 147 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 31->147 149 Tries to harvest and steal browser information (history, passwords, etc) 31->149 151 Writes to foreign memory regions 31->151 153 2 other signatures 31->153 36 pip.exe 31->36         started        38 python.exe 1088 31->38         started        43 python.exe 31->43         started        45 3 other processes 31->45 file12 signatures13 process14 dnsIp15 47 python.exe 36->47         started        50 conhost.exe 36->50         started        125 pypi.org 151.101.192.223, 443, 49725, 49733 FASTLY-FastlyIncUS Canada 38->125 127 dualstack.python.map.fastly.net 151.101.64.223, 443, 49728, 49735 FASTLY-FastlyIncUS Canada 38->127 87 C:\Users\user\AppData\Local\...\pip3.exe, PE32+ 38->87 dropped 89 C:\Users\user\AppData\Local\...\pip3.12.exe, PE32+ 38->89 dropped 91 C:\Users\user\AppData\Local\...\pip.exe, PE32+ 38->91 dropped 99 378 other malicious files 38->99 dropped 165 Suspicious powershell command line found 38->165 167 Uses schtasks.exe or at.exe to add and modify task schedules 38->167 169 Uses netsh to modify the Windows network and firewall settings 38->169 173 2 other signatures 38->173 52 conhost.exe 38->52         started        129 150.136.141.142 ORACLE-BMC-31898-OracleCorporationUS United States 43->129 131 142.251.156.119 GOOGLE-GoogleLLCUS United States 43->131 133 3 other IPs or domains 43->133 93 C:\Recovery\OEM\...\RuntimeBroker.exe, PE32+ 43->93 dropped 95 C:\Users\user\AppData\Local\...\stdole.py, Python 43->95 dropped 97 _78530B68_61F9_11D...A024580902_0_1_0.py, Python 43->97 dropped 101 4 other malicious files 43->101 dropped 171 Adds a directory exclusion to Windows Defender 43->171 54 powershell.exe 43->54         started        57 powershell.exe 43->57         started        59 powershell.exe 43->59         started        61 7 other processes 43->61 file16 signatures17 process18 file19 111 C:\Users\user\AppData\Local\...\wsdump.exe, PE32+ 47->111 dropped 113 C:\Users\user\AppData\Local\...\win32wnet.pyd, PE32+ 47->113 dropped 115 C:\Users\user\AppData\Local\...\win32ts.pyd, PE32+ 47->115 dropped 117 520 other malicious files 47->117 dropped 63 cmd.exe 47->63         started        163 Loading BitLocker PowerShell Module 54->163 65 conhost.exe 54->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 3 other processes 61->77 signatures20 process21
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5/
Verdict:
Malicious
Threat:
Family.SILENTNET
Link:
https://tip.neiki.dev/file/64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5
Threat name:
Win32.Trojan.Ravartar
Create hunting rule
Status:
Malicious
First seen:
2026-06-27 11:12:04 UTC
File Type:
Binary (Archive)
Extracted files:
12
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqyj6cwxj2e2xiizdoxyvho27u6lqacce5mvxmeoon2zswc67hkq._file
Result
Malware family:
silentnet
Create hunting rule
Score:
  10/10
Tags:
family:silentnet stealer
Link:
https://tria.ge/reports/260628-j8yvzagt5r/
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/64309f0ad74e89aba1191baf8a9ddafd3cb8004227595bb08e737599585ef9d5

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:RANSOMWARE
Create hunting rule
Author:ToroGuitar

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/72279/

Comments