MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 40d8a88490a6c1a847de73aaf34d9bf440e98232e6f568bd33ceaf77a0b15a30. 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: 15
| SHA256 hash: | 40d8a88490a6c1a847de73aaf34d9bf440e98232e6f568bd33ceaf77a0b15a30 |
|---|---|
| SHA3-384 hash: | 31770b1d1ad60277c937585d63d4f1ee081343c2ee9f3da9caecc628bf7ccf5ea7fcfc81518373c92fdacd8af25fc5d7 |
| SHA1 hash: | 4d2d27b9944a58b5a5be28c8845748db1697870f |
| MD5 hash: | 08b9ae7e5a6abdeb98f18bc1e22b2341 |
| humanhash: | venus-monkey-three-hot |
| File name: | 08b9ae7e5a6abdeb98f18bc1e22b2341.exe |
| Download: | download sample |
| Signature | ValleyRAT |
| File size: | 4'307'456 bytes |
| First seen: | 2026-07-07 02:45:33 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f00286a7ad92e4220bda35c68491c0a8 (1 x ValleyRAT) |
| ssdeep | 49152:tgxey6WBtMd/zsyKbqe222oTViUE/E7JQhFz7Xfi9NihJwy2bFynuOwmwO4tGTHw:key6WBBbqe0mV/8L7C+HMcFi |
| Threatray | 17 similar samples on MalwareBazaar |
| TLSH | T1A3163ABBB632865CC0CAC5B468978BEA6F217C150CB5030722DE371F6E76A401D7E59E |
| TrID | 30.8% (.EXE) UPX compressed Win32 Executable (27066/9/6) 30.2% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 11.3% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2) 7.4% (.EXE) Win64 Executable (generic) (6522/11/2) 5.7% (.EXE) Win16 NE executable (generic) (5038/12/1) |
| Magika | pebin |
| Reporter |  abuse_ch |
| Tags: | exe RAT ValleyRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://103.80.135.33/getinstall64 | https://threatfox.abuse.ch/ioc/1845901/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
219
Origin country :
NLVendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_40d8a88490a6c1a847de73aaf34d9bf440e98232e6f568bd33ceaf77a0b15a30.exe
Verdict:
Malicious activity
Analysis date:
2026-07-07 02:48:22 UTC
Tags:
generic loader rat valleyrat websocket silverfox winos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.9%
Tags:
emotet virus small hype
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Creating a window
Searching for synchronization primitives
Restart of the analyzed sample
Creating a process with a hidden window
Connection attempt
Sending an HTTP GET request
Creating a file in the system32 subdirectories
Deleting a recently created file
Creating a file
Launching a process
Moving of the original file
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug fingerprint free_pascal installer-heuristic keylogger packed reconnaissance
Verdict:
Malicious
Labled as:
Win64/Agent.JRH trojan
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-03T13:17:00Z UTC
Last seen:
2026-07-08T21:08:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Trojan.Win64.Silverfox.sb Trojan.Win32.Agent.sb Backdoor.Win32.Androm.sb Trojan.Win64.Silverfox.afr Trojan.Win32.Inject.sb Trojan.Win64.Zenpak.sb Trojan.Win32.Waldek.sb Trojan.Silverfox.HTTP.C&C Trojan-Spy.Win32.Stealer.sb Trojan-Spy.Win32.KeyLogger.sbb
Malware family:
SoftPerfect Pty Ltd
Verdict:
Suspicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Benign windows process drops PE files
Changes memory attributes in foreign processes to executable or writable
Creates a thread in another existing process (thread injection)
Creates files in the system32 config directory
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Modifies the context of a thread in another process (thread injection)
Moves itself to temp directory
Multi AV Scanner detection for submitted file
Unusual module load detection (module proxying)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Score:
41%
Verdict:
Susipicious
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.VALLEYRAT
Threat name:
Win64.Trojan.Yogi
Status:
Malicious
First seen:
2026-07-03 19:11:19 UTC
File Type:
PE+ (Exe)
Extracted files:
251
AV detection:
22 of 36 (61.11%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
boxedrat
Similar samples:
+ 7 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
8/10
Tags:
adware persistence spyware
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies Internet Explorer settings
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Enumerates connected drives
Checks computer location settings
Boot or Logon Autostart Execution: Active Setup
Unpacked files
SH256 hash:
40d8a88490a6c1a847de73aaf34d9bf440e98232e6f568bd33ceaf77a0b15a30
MD5 hash:
08b9ae7e5a6abdeb98f18bc1e22b2341
SHA1 hash:
4d2d27b9944a58b5a5be28c8845748db1697870f
SH256 hash:
39d9f7faf3b67680be0ffe45dd26bd43b1ef858cb231bd3b3783c37875efa779
MD5 hash:
2634657b6c48c0187ac466f4110c7675
SHA1 hash:
0b5c21011fa88912ae48fec747e3367edcb4e7fd
Verdict:
Malicious
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: | command_and_control |
|---|---|
| Author: | CD_R0M_ |
| Description: | This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DebuggerCheck__MemoryWorkingSet |
|---|---|
| Author: | Fernando Mercês |
| Description: | Anti-debug process memory working set size check |
| Reference: | http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/ |
| Rule name: | DebuggerCheck__QueryInfo |
|---|---|
| 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: | pe_detect_tls_callbacks |
|---|
| Rule name: | RIPEMD160_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for RIPEMD-160 constants |
| Rule name: | SHA1_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for SHA1 constants |
| Rule name: | Suspicious_Process |
|---|---|
| Author: | Security Research Team |
| Description: | Suspicious process creation |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | telebot_framework |
|---|---|
| Author: | vietdx.mb |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| 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: | UPX20030XMarkusOberhumerLaszloMolnarJohnReiser |
|---|---|
| Author: | malware-lu |
| Rule name: | UPXProtectorv10x2 |
|---|---|
| Author: | malware-lu |
| Rule name: | UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser |
|---|---|
| Author: | malware-lu |
| Rule name: | UPXv20MarkusLaszloReiser |
|---|---|
| Author: | malware-lu |
| 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.
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