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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488
SHA3-384 hash: 250056e0d0602d4d6f47c6ceba8c314dd411a2a6f847e2e86cf04cc9b3ce4a41c78aa030fb7c05cd5d4648ccf03cf19e
SHA1 hash: 3003f60e5185acb111c0bb6b3abc7622ffaa760c
MD5 hash: e3ae8744eecea0a90a34ce89be16e7b9
humanhash: nuts-uranus-alaska-beer
File name:donutdupe.jar
Download: download sample
Signature Silentnet
Create hunting rule
File size:65'913 bytes
First seen:2026-11-04 17:59:29 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 1536:MbBq+/v+T09HtET/oCRPywD/askW9JUwC:kqhT09STg46wblHJi
TLSH T15153F17173CED211ED8B41362CA380716D15A046BFCEFE8356BA952CC663A40579FBD2
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 :
83
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
Malicious activity
Analysis date:
2026-11-04 18:08:30 UTC
Tags:
silentnet stealer etherhiding evasion auto python generic arch-exec arch-doc openssl tool
Link:
https://app.any.run/tasks/f3f332c5-88c2-45b5-bf23-3f0e9745c366

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/97218/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6aeb72b9d18657e6dffe7150
Tags:
n/a
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%
Link:
https://www.filescan.io/uploads/6aeb72bb9a8b5465ae6e0ea1/reports/93469eec-b820-4e04-a9b6-804d7f33b631/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488
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/87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488/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/1998412
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)
Joe Sandbox ML detected suspicious sample
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 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: 1998412 Sample: donutdupe.jar Startdate: 04/11/2026 Architecture: WINDOWS Score: 100 116 www.python.org 2->116 118 files.pythonhosted.org 2->118 120 3 other IPs or domains 2->120 152 Suricata IDS alerts for network traffic 2->152 154 Multi AV Scanner detection for dropped file 2->154 156 Yara detected SilentNet 2->156 158 11 other signatures 2->158 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 150 Found many strings related to Crypto-Wallets (likely being stolen) 18->150 27 javaw.exe 884 18->27         started        process7 dnsIp8 132 185.178.208.191, 443, 49704, 49715 DDOS-GUARDRU Russia 27->132 134 104.20.46.180, 443, 49700 CLOUDFLARENET-CloudflareIncUS Canada 27->134 108 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 27->108 dropped 110 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 27->110 dropped 112 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 27->112 dropped 114 623 other malicious files 27->114 dropped 31 python.exe 217 27->31         started        file9 process10 dnsIp11 136 64.130.32.46, 443, 49720 TERASWITCH-TeraSwitchNetworksIncUS Germany 31->136 138 198.178.224.35, 443, 49718 LATITUDE-SH-LatitudeshUS United States 31->138 140 4 other IPs or domains 31->140 76 C:\Users\user\AppData\...\tmp25gmy8yd.tmp, PE32+ 31->76 dropped 78 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 31->78 dropped 80 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 31->80 dropped 82 34 other malicious files 31->82 dropped 142 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 31->142 144 Found many strings related to Crypto-Wallets (likely being stolen) 31->144 146 Tries to harvest and steal browser information (history, passwords, etc) 31->146 148 4 other signatures 31->148 36 python.exe 1272 31->36         started        41 pip.exe 31->41         started        43 python.exe 31->43         started        45 2 other processes 31->45 file12 signatures13 process14 dnsIp15 122 pypi.org 151.101.192.223, 443, 49740, 49746 FASTLY-FastlyIncUS Canada 36->122 124 151.101.64.223, 443, 49742, 49747 FASTLY-FastlyIncUS Canada 36->124 92 C:\Users\user\AppData\Local\...\connection.py, Python 36->92 dropped 94 C:\Users\user\AppData\Local\Temp\...\w64.exe, PE32+ 36->94 dropped 96 C:\Users\user\AppData\Local\...\w64-arm.exe, PE32+ 36->96 dropped 104 821 other malicious files 36->104 dropped 160 Suspicious powershell command line found 36->160 162 Uses schtasks.exe or at.exe to add and modify task schedules 36->162 164 Uses netsh to modify the Windows network and firewall settings 36->164 168 3 other signatures 36->168 47 conhost.exe 36->47         started        49 python.exe 41->49         started        52 conhost.exe 41->52         started        126 142.251.151.119 GOOGLE-GoogleLLCUS United States 43->126 128 104.16.249.249 CLOUDFLARENET-CloudflareIncUS Canada 43->128 130 23.192.49.54 AKAMAI-AS-AkamaiTechnologiesIncUS Canada 43->130 98 C:\Recovery\OEM\...\RuntimeBroker.exe, PE32+ 43->98 dropped 100 C:\Users\user\AppData\Local\...\stdole.py, Python 43->100 dropped 102 _78530B68_61F9_11D...A024580902_0_1_0.py, Python 43->102 dropped 106 4 other malicious files 43->106 dropped 166 Adds a directory exclusion to Windows Defender 43->166 54 powershell.exe 43->54         started        56 powershell.exe 43->56         started        58 powershell.exe 43->58         started        60 12 other processes 43->60 file16 signatures17 process18 file19 84 _struct_ufunc_tests.cp312-win_amd64.pyd, PE32+ 49->84 dropped 86 C:\Users\user\...\_simd.cp312-win_amd64.pyd, PE32+ 49->86 dropped 88 C:\...\_rational_tests.cp312-win_amd64.pyd, PE32+ 49->88 dropped 90 241 other malicious files 49->90 dropped 62 conhost.exe 54->62         started        64 conhost.exe 56->64         started        66 conhost.exe 58->66         started        68 conhost.exe 60->68         started        70 conhost.exe 60->70         started        72 conhost.exe 60->72         started        74 8 other processes 60->74 process20
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=q5dcveykqgm4vxohjhewt6kuwyg6frhxwqgnxpgzb2sfklnuesea._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261104-wle6kaet9m/
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/87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488

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: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 87462a930a8199caddc749c969f954b60de2c4f7b40cdbbcd90ea4552db42488

(this sample)

  
Dropping
SilentNet
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/97218/

Comments