MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 500f2453771722611010edab168211ad9eca0c0bf97936453855e8638e6d73fd. 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
ValleyRAT
Vendor detections: 13
| SHA256 hash: | 500f2453771722611010edab168211ad9eca0c0bf97936453855e8638e6d73fd |
|---|---|
| SHA3-384 hash: | bf0ccd4d2634e5aefe129b1242d2ad72c2acd247a1b1e492a553c00b4ce5bd5951fe0b00a2af26767a757d17806039a8 |
| SHA1 hash: | 7c046391ebee495eb2868ffd6854064b164b82c4 |
| MD5 hash: | 1caa9ad14b1c6c4068bade2d07274504 |
| humanhash: | asparagus-jupiter-nuts-minnesota |
| File name: | LetsVPN1.exe |
| Download: | download sample |
| Signature | ValleyRAT |
| File size: | 35'106'152 bytes |
| First seen: | 2026-04-16 01:48:27 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | eb5bc6ff6263b364dfbfb78bdb48ed59 (55 x Adware.Generic, 18 x RaccoonStealer, 8 x Adware.ExtenBro) |
| ssdeep | 786432:wuxvqaThZOI/yiN+yKOctWnZV7eMd1/kZAgkqwIXu:hvqaTjOkvU7OVZV7eMd5ka/NIXu |
| TLSH | T11B77336BB39C543FD91A67324A72A14024FB77ADB836AD1276F4C8CCCB680C50D76B16 |
| TrID | 63.8% (.EXE) Inno Setup installer (107240/4/30) 24.7% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9) 3.8% (.EXE) Win64 Executable (generic) (6522/11/2) 2.6% (.EXE) Win32 Executable (generic) (4504/4/1) 1.2% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| Magika | pebin |
| dhash icon | aaa6d26ab46ad2ae (1 x Gh0stRAT, 1 x ValleyRAT) |
| Reporter |  Ling |
| Tags: | exe signed SilverFox ValleyRAT |
Code Signing Certificate
| Organisation: | 亚洲诚信代码签名测试证书 |
|---|---|
| Issuer: | TrustAsia Code Signing CA |
| Algorithm: | sha1WithRSAEncryption |
| Valid from: | 2018-01-29T05:39:00Z |
| Valid to: | 2020-01-29T05:39:00Z |
| Serial number: | 0a |
| Intelligence: | 5 malware samples on MalwareBazaar are signed with this code signing certificate |
| Cert Graveyard Blocklist: | This certificate is on the Cert Graveyard blocklist |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 751f92632d12af8972d20daec5409db521efd93013eca7769f39dd7a7f366b55 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
137
Origin country :
USVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
LetsVPN1.exe
Verdict:
Malicious activity
Analysis date:
2026-04-16 01:49:21 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
shellcode dropper blic
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Moving a recently created file
Creating a process with a hidden window
Launching a service
Connection attempt
Creating a service
Enabling autorun for a service
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
adaptive-context anti-debug embarcadero_delphi expired-cert fingerprint fingerprint inno installer installer installer-heuristic packed signed soft-404
Verdict:
Malicious
Labled as:
Adware.BundleInstaller.vl
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-15T21:09:00Z UTC
Last seen:
2026-04-16T11:11:00Z UTC
Hits:
~100
Detections:
Trojan.Win64.Agent.sba Trojan.Win32.Waldek.sb Trojan.Win32.Waldek.cmdn
Score:
59%
Verdict:
Susipicious
File Type:
PE
Gathering data
Verdict:
Malicious
Threat name:
Win32.Trojan.Malgent
Status:
Malicious
First seen:
2026-04-16 00:38:06 UTC
File Type:
PE (Exe)
Extracted files:
815
AV detection:
13 of 38 (34.21%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
8/10
Tags:
discovery execution installer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Inno Setup is an open-source installation builder for Windows applications.
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Command and Scripting Interpreter: PowerShell
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | Borland |
|---|---|
| Author: | malware-lu |
| Rule name: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | telebot_framework |
|---|---|
| Author: | vietdx.mb |
| Rule name: | TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE |
|---|---|
| Author: | CYFARE |
| Description: | Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments |
| Reference: | https://cyfare.net/ |
| Rule name: | VECT_Ransomware |
|---|---|
| Author: | Mustafa Bakhit |
| Description: | Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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