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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295
SHA3-384 hash: a9ec3942abe15a8b872a57182cf2a9fe9da78d3f758916bcc5fd77d891fe86dfb901cf408750ee09e4e7a06378c060de
SHA1 hash: 5b81e64eb17f1e9fdaf5d73fd2fb32b323f14687
MD5 hash: ac0d9b7e18d20125ea76d2287b3ecdaf
humanhash: black-fish-high-jig
File name:Tuff Client.jar
Download: download sample
Signature SilentNet
Create hunting rule
File size:5'901'105 bytes
First seen:2026-10-31 15:01:22 UTC
Last seen:Never
File type:Java file jar
MIME type:application/zip
ssdeep 98304:wbwUoLOJh6HaalgA9x356yRCUVvxG2mhm3oq129mGEtJ4sSYbr7BeiwCbzX:wf68Mh6OvxGlhm3oqJXEcoXwD
TLSH T1EE56339198B3D255D296F23F46B23F23ED15DDA029012C8AB7C52B3FA927258F870353
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 :
88
Origin country :
AT AT
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
jar
Verdict:
Malicious activity
Analysis date:
2026-10-31 15:45:12 UTC
Tags:
silentnet stealer etherhiding evasion auto python arch-exec arch-doc generic openssl tool
Link:
https://app.any.run/tasks/afb74038-c60a-439c-b198-f456e90438da

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/96396/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ae602d9b121dd519dcf1040
Tags:
n/a
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6ae602faf33e2b70089fbb3c/reports/103f819b-8a1b-4825-bc06-8fb185b91dd0/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295
Result
Malware family:
Silentnet
Create hunting rule
Verdict:
Malicious
Trusted hash?:
False
File:
11
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/0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295/results?tab=lookup
Result
Threat name:
SilentNet
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1995883
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
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 Python Keylogger
Yara detected SilentNet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1995883 Sample: Tuff Client.jar Startdate: 31/10/2026 Architecture: WINDOWS Score: 100 119 files.pythonhosted.org 2->119 121 thisisafalsepositive.st 2->121 123 3 other IPs or domains 2->123 151 Suricata IDS alerts for network traffic 2->151 153 Multi AV Scanner detection for dropped file 2->153 155 Yara detected SilentNet 2->155 157 10 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        20 conhost.exe 12->20         started        22 conhost.exe 14->22         started        24 conhost.exe 16->24         started        process6 26 javaw.exe 884 18->26         started        dnsIp7 133 104.20.46.180, 443, 49739 CLOUDFLARENET-CloudflareIncUS Canada 26->133 135 thisisafalsepositive.st 185.178.208.191, 443, 49742, 49745 DDOS-GUARDRU Russia 26->135 95 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 26->95 dropped 97 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 26->97 dropped 99 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 26->99 dropped 101 623 other malicious files 26->101 dropped 30 python.exe 218 26->30         started        file8 process9 dnsIp10 137 208.115.201.238, 443, 49750 LIMESTONENETWORKS-LimestoneNetworksIncUS Germany 30->137 139 198.178.224.35, 443, 49748 LATITUDE-SH-LatitudeshUS United States 30->139 141 4 other IPs or domains 30->141 111 C:\Users\user\AppData\...\tmp1myq7ghn.tmp, PE32+ 30->111 dropped 113 C:\Users\user\AppData\Local\...\winsound.pyd, PE32+ 30->113 dropped 115 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 30->115 dropped 117 32 other malicious files 30->117 dropped 143 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 30->143 145 Tries to harvest and steal browser information (history, passwords, etc) 30->145 147 Writes to foreign memory regions 30->147 149 2 other signatures 30->149 35 pip.exe 30->35         started        37 python.exe 1118 30->37         started        42 python.exe 30->42         started        44 2 other processes 30->44 file11 signatures12 process13 dnsIp14 46 python.exe 35->46         started        49 conhost.exe 35->49         started        125 pypi.org 151.101.0.223, 443, 49772, 49773 FASTLY-FastlyIncUS Canada 37->125 79 C:\Users\user\AppData\Local\...\pip3.exe, PE32+ 37->79 dropped 81 C:\Users\user\AppData\Local\...\pip3.12.exe, PE32+ 37->81 dropped 83 C:\Users\user\AppData\Local\...\pip.exe, PE32+ 37->83 dropped 91 390 other malicious files 37->91 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 2 other signatures 37->167 51 conhost.exe 37->51         started        53 cmd.exe 37->53         started        127 64.130.32.46 TERASWITCH-TeraSwitchNetworksIncUS Germany 42->127 129 142.251.155.119 GOOGLE-GoogleLLCUS United States 42->129 131 2 other IPs or domains 42->131 85 C:\Recovery\OEM\...\RuntimeBroker.exe, PE32+ 42->85 dropped 87 C:\Users\user\AppData\Local\...\stdole.py, Python 42->87 dropped 89 _78530B68_61F9_11D...A024580902_0_1_0.py, Python 42->89 dropped 93 4 other malicious files 42->93 dropped 165 Adds a directory exclusion to Windows Defender 42->165 55 powershell.exe 42->55         started        57 powershell.exe 42->57         started        59 powershell.exe 42->59         started        61 12 other processes 42->61 file15 signatures16 process17 file18 103 C:\Users\user\AppData\Local\...\wsdump.exe, PE32+ 46->103 dropped 105 C:\Users\user\AppData\...\cffi-gen-src.exe, PE32+ 46->105 dropped 107 C:\Users\user\AppData\Local\...\win32wnet.pyd, PE32+ 46->107 dropped 109 461 other malicious files 46->109 dropped 63 cmd.exe 46->63         started        65 conhost.exe 55->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 8 other processes 61->77 process19
Score:
0%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295/
Threat name:
ByteCode-JAVA.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-10-31 15:02:32 UTC
File Type:
Binary (Archive)
Extracted files:
11
AV detection:
4 of 38 (10.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bl2ppvj6tmmhpv4kcuo6wqntblbs2lf3qab6iqyjookip6e46kkq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/261031-sd4meacs5y/
Malware Family:
java
Create hunting rule
Malicious:
True
Tags:
checks-cpu-name detect-debug-environment sets-process-name jar
Link:
https://intel.virussign.com/intelligence/file/0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295
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/0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295

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_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_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 0af4f7d53e9b1877d78a151deb41b30ac32d2cbb8003e44309739487f89cf295

(this sample)

  
Dropping
SilentNet
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/96396/
  
URLhaus
https://urlhaus.abuse.ch/url/4049354/

Comments