MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049. 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: 5


Intelligence 5 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049
SHA3-384 hash: 5ec478c3afdb020bef8b5919b12134dfb6c778fe41ae50677135aad5b7cb3b6c2e78e30a7a07ada0bf000cd7a6012387
SHA1 hash: af3a81297344f16b3f7701c93a88ee1a6d47b5d7
MD5 hash: e4b39120bb488f16e142b87cfc631533
humanhash: oven-nine-sink-quiet
File name:OpenKrypton.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:4'073'434 bytes
First seen:2026-08-09 08:53:48 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 98304:/YSOSFj4qY7I7uy8hKXUnZf1r6GGnVgwsPaANHcW9ioJ:/1Fjg7IBqz6HvsPToC
TLSH T19E16331EC4481E53A8C9AFFE5949B241148E17A3ADF1BACB0F584FBFF82914764DD884
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 :
87
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
Malicious activity
Analysis date:
2026-08-09 09:01:02 UTC
Tags:
silentnet stealer python evasion arch-exec openssl tool arch-doc
Link:
https://app.any.run/tasks/bac51b99-d9d5-4584-a03c-d65143e7864f

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/79349/
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6a78404446ba96cfa12cb0d4/reports/17919580-acbb-4ce5-a507-b51815fda570/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049
Verdict:
Malicious
File Type:
jar
First seen:
2026-08-09T05:58:00Z UTC
Last seen:
2026-08-09T05:58:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049/results?tab=lookup
Result
Threat name:
SilentNet
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1954561
Signature
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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Writes many files with high entropy
Writes to foreign memory regions
Yara detected SilentNet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1954561 Sample: OpenKrypton.jar Startdate: 09/08/2026 Architecture: WINDOWS Score: 96 81 pypi.org 2->81 83 files.pythonhosted.org 2->83 85 2 other IPs or domains 2->85 99 Suricata IDS alerts for network traffic 2->99 101 Yara detected SilentNet 2->101 103 Exploit detected, runtime environment starts unknown processes 2->103 105 4 other signatures 2->105 12 cmd.exe 1 2->12         started        signatures3 process4 process5 14 java.exe 5 12->14         started        16 conhost.exe 12->16         started        process6 18 javaw.exe 884 14->18         started        dnsIp7 87 185.178.208.191, 443, 49764, 49769 DDOS-GUARDRU Russia 18->87 89 104.18.11.59, 443, 49762 CLOUDFLARENET-CloudflareIncUS Canada 18->89 49 C:\Users\user\AppData\Local\...\python.exe, PE32+ 18->49 dropped 51 C:\Users\user\AppData\Local\...\python312.zip, Zip 18->51 dropped 53 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 18->53 dropped 55 624 other files (none is malicious) 18->55 dropped 22 python.exe 213 18->22         started        file8 process9 dnsIp10 91 132.145.155.63, 443, 49774 ORACLE-BMC-31898-OracleCorporationUS United States 22->91 93 198.178.224.35, 443, 49772 LATITUDE-SH-LatitudeshUS United States 22->93 95 4 other IPs or domains 22->95 65 C:\Users\user\AppData\Local\...\python.exe, PE32+ 22->65 dropped 67 C:\Users\user\AppData\...\tmp_ojk_hx8d.zip, Zip 22->67 dropped 69 C:\Users\user\AppData\Local\...\python312.zip, Zip 22->69 dropped 71 32 other files (none is malicious) 22->71 dropped 107 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 22->107 109 Tries to harvest and steal browser information (history, passwords, etc) 22->109 111 Writes to foreign memory regions 22->111 113 3 other signatures 22->113 27 pip.exe 22->27         started        29 python.exe 1111 22->29         started        34 conhost.exe 22->34         started        36 chrome.exe 22->36         started        file11 signatures12 process13 dnsIp14 38 python.exe 27->38         started        41 conhost.exe 27->41         started        97 dualstack.python.map.fastly.net 151.101.192.223, 443, 49798, 49803 FASTLY-FastlyIncUS Canada 29->97 73 C:\Users\user\AppData\Local\...\pip3.exe, PE32+ 29->73 dropped 75 C:\Users\user\AppData\Local\...\pip3.12.exe, PE32+ 29->75 dropped 77 C:\Users\user\AppData\Local\...\pip.exe, PE32+ 29->77 dropped 79 389 other files (none is malicious) 29->79 dropped 115 Writes many files with high entropy 29->115 43 conhost.exe 29->43         started        45 cmd.exe 29->45         started        file15 signatures16 process17 file18 57 C:\Users\user\AppData\Local\...\tmpxpp_4qv9, Zip 38->57 dropped 59 C:\Users\user\AppData\Local\...\tmpvlqxhdym, Zip 38->59 dropped 61 C:\Users\user\AppData\Local\...\tmpp9qftqh2, Zip 38->61 dropped 63 444 other files (17 malicious) 38->63 dropped 47 cmd.exe 38->47         started        process19
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jwg4lntvur33ybp5nlglxvxwl2wisgeldxcuh2x6vf57j6d6ubeq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/260809-kt4y4sck61/
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/4d8dc5b675a477bc05fd6accbbd6f65eac89188b1dc543eafea97bf4f87ea049

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/79349/

Comments