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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5. 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: 16


Intelligence 16 IOCs 1 YARA 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5
SHA3-384 hash: 52fd5976dc24b8b3ad57b58d84d2fb9517a61e2a7a8a697f1ea208a31905a80cd08c609267f87395de961a46a454dd43
SHA1 hash: 53920f48176af2f3c3a10ad32d3188c83493bbaf
MD5 hash: ffd7f983949b2a14f9ab7e678ad5f63e
humanhash: sierra-hot-seven-juliet
File name:fnvpn.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:38'720'849 bytes
First seen:2026-03-27 18:55:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8c4c69111630d8599dacdb4710373322 (5 x ValleyRAT, 1 x CoinMiner)
ssdeep 786432:RVTYnr6SAGzln6N2UErcApnYLK6mOJJdyoIEWikaGNt6o181vNOXbRNZ:VS56N2UR8y/IZ6NfOrh
TLSH T1C68733FD339E5959E8AC617B05B497A4C306721B02DD9CAB9840CB3A34E38D5636CDF2
TrID 54.9% (.EXE) UPX compressed Win32 Executable (27066/9/6)
13.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.1% (.EXE) Win32 Executable (generic) (4504/4/1)
4.1% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 00b28eabababa600 (6 x Cosmu, 5 x RemcosRAT, 4 x AsyncRAT)
Reporter abuse_ch
Tags:exe RAT UPX ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
185.106.179.30:1280

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
185.106.179.30:1280 https://threatfox.abuse.ch/ioc/1777496/
File size (compressed) :38'720'849 bytes
File size (de-compressed) :39'135'057 bytes
Format:win32/pe
Unpacked file: aeb2dd609ad610758ec2ba5b1f64e64a09577890cc100974d6e099b9e7805312

Intelligence

File Origin
# of uploads :
1
# of downloads :
164
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
PEPacker
Details
PEPacker
a UPX version number and an unpacked binary
Link:
https://research.acce.ciphertechsolutions.com/results/f4855207-3560-4951-9c63-d4de55568592/
Malware family:
n/a
ID:
1
File name:
fnvpn.exe
Verdict:
Malicious activity
Analysis date:
2026-03-27 18:35:04 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c4ff95bf-18ac-4982-b029-a98c73e68acd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69c6cdbe390b996474144929
Tags:
emotet virus shell sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Forced system process termination
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a window
Searching for the window
Moving a file to the %AppData% subdirectory
Enabling the 'hidden' option for recently created files
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug babar cmd crypto fingerprint installer-heuristic keylogger lolbin microsoft_visual_cc overlay packed packed packed packed upx
Link:
https://www.filescan.io/uploads/69c6d2cc00ad36369406fcc2/reports/95638908-0d14-4198-8986-e838716bbbfe/overview
Verdict:
Malicious
Labled as:
Babar.Generic
Link:
https://www.hybrid-analysis.com/sample/c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-03-27T15:51:00Z UTC
Last seen:
2026-03-28T02:39:00Z UTC
Hits:
~10
Detections:
BSS:Trojan.Win32.Generic HEUR:Trojan.OLE2.Agent.gen Backdoor.Win32.Zegost.sb VHO:Trojan.Win32.GenericML.xnet
Link:
https://opentip.kaspersky.com/c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5/results?tab=lookup
Result
Threat name:
Clipboard Hijacker, MicroClip, ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1890409
Signature
Adds a directory exclusion to Windows Defender
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to infect the boot sector
Contains functionality to register a low level keyboard hook
Contains functionality to start reverse TCP shell (cmd.exe)
Contains functionalty to change the wallpaper
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Unusual module load detection (module proxying)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Clipboard Hijacker
Yara detected MicroClip
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1890409 Sample: fnvpn.exe Startdate: 27/03/2026 Architecture: WINDOWS Score: 100 105 hu.yunduans.com 2->105 111 Suricata IDS alerts for network traffic 2->111 113 Multi AV Scanner detection for dropped file 2->113 115 Multi AV Scanner detection for submitted file 2->115 117 5 other signatures 2->117 11 fnvpn.exe 10 2->11         started        15 GameBox.exe 5 2->15         started        17 GameBox.exe 2->17         started        19 24 other processes 2->19 signatures3 process4 file5 103 C:\Users\user\AppData\Local\Temp\...\sg.tmp, PE32 11->103 dropped 133 Contains functionalty to change the wallpaper 11->133 135 Contains functionality to infect the boot sector 11->135 137 Contains functionality to start reverse TCP shell (cmd.exe) 11->137 141 2 other signatures 11->141 21 3.11huFCStartGameDll.exe 14 11->21         started        24 cmd.exe 1 11->24         started        27 fnvpn.exe 11->27         started        37 2 other processes 11->37 139 Adds a directory exclusion to Windows Defender 15->139 29 powershell.exe 15->29         started        31 powershell.exe 17->31         started        33 powershell.exe 19->33         started        35 powershell.exe 19->35         started        39 21 other processes 19->39 signatures6 process7 file8 85 C:\Users\user\AppData\Local\...\Utility.dll, PE32 21->85 dropped 87 C:\Users\user\AppData\Local\...behaviorgraphameBox.exe, PE32 21->87 dropped 89 C:\Users\user\AppData\Local\...\DuiLib_u.dll, PE32 21->89 dropped 91 C:\Users\user\AppData\...\BrowserModule.dll, PE32 21->91 dropped 41 GameBox.exe 3 6 21->41         started        119 Uses ping.exe to sleep 24->119 121 Uses ping.exe to check the status of other devices and networks 24->121 46 conhost.exe 24->46         started        48 cmd.exe 27->48         started        123 Loading BitLocker PowerShell Module 29->123 50 conhost.exe 29->50         started        52 conhost.exe 31->52         started        54 conhost.exe 33->54         started        56 conhost.exe 35->56         started        93 C:\Users\user\...\fnjs_2.3.5_x64_zh-CN.exe, PE32 37->93 dropped 95 C:\Users\user\...\3.11huFCStartGameDll.exe, PE32 37->95 dropped 58 conhost.exe 37->58         started        60 21 other processes 39->60 signatures9 process10 dnsIp11 109 hu.yunduans.com 185.106.179.30, 1280, 49699, 49700 AS_LYREG3FR United Kingdom 41->109 97 C:\Users\user\AppData\...\Utility.dll (copy), PE32 41->97 dropped 99 C:\Users\user\AppData\...behaviorgraphameBox.exe (copy), PE32 41->99 dropped 101 C:\Users\user\AppData\...\DuiLib_u.dll (copy), PE32 41->101 dropped 125 Adds a directory exclusion to Windows Defender 41->125 127 Installs a global keyboard hook 41->127 129 Unusual module load detection (module proxying) 41->129 62 GameBox.exe 41->62         started        65 powershell.exe 23 41->65         started        131 Uses ping.exe to sleep 48->131 67 PING.EXE 48->67         started        70 conhost.exe 48->70         started        72 PING.EXE 48->72         started        74 2 other processes 48->74 file12 signatures13 process14 dnsIp15 145 Adds a directory exclusion to Windows Defender 62->145 76 powershell.exe 62->76         started        147 Loading BitLocker PowerShell Module 65->147 79 conhost.exe 65->79         started        107 127.0.0.1 unknown unknown 67->107 81 conhost.exe 70->81         started        signatures16 process17 signatures18 143 Loading BitLocker PowerShell Module 76->143 83 conhost.exe 76->83         started        process19
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5
Gathering data
Verdict:
Malicious
Threat:
Family.VALLEYRAT_S2
Link:
https://tip.neiki.dev/file/c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5
Threat name:
Win32.Infostealer.Babar
Create hunting rule
Status:
Malicious
First seen:
2026-03-27 18:34:42 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqbnlfw2qm4cdut2dv24zilhsrk4vrs62o4uzy7crukvw3drwxsq._file
Result
Malware family:
valleyrat_s2
Create hunting rule
Score:
  10/10
Tags:
family:valleyrat_s2 backdoor discovery execution installer upx
Link:
https://tria.ge/reports/260327-xleqgafw9l/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
UPX packed file
Enumerates connected drives
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
ValleyRat
Valleyrat_s2 family
Malware Config
C2 Extraction:
hu.yunduans.com:1280
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c402d596da83/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:GenericGh0st
Create hunting rule
Author:Still
Rule name:Gh0stKCP
Create hunting rule
Author:Netresec
Description:Detects HP-Socket ARQ and KCP implementations, which are used in Gh0stKCP. Forked from @stvemillertime's KCP catchall rule.
Reference:https://netresec.com/?b=259a5af
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
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
Create hunting rule
Author:malware-lu
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9
Rule name:VECT_Ransomware
Create hunting rule
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.
Rule name:WinosStager
Create hunting rule
Author:YungBinary
Description:https://www.esentire.com/blog/winos4-0-online-module-staging-component-used-in-cleversoar-campaign

File information

The table below shows additional information about this malware sample such as delivery method and external references.

ValleyRAT

Executable exe c402d596da833821d27a1d75cca1679455cac65ed3b94ce3e28d155b6c71b5e5

(this sample)

ValleyRAT

Executable exe aeb2dd609ad610758ec2ba5b1f64e64a09577890cc100974d6e099b9e7805312

  
Dropping
SHA256 aeb2dd609ad610758ec2ba5b1f64e64a09577890cc100974d6e099b9e7805312
  
Dropping
MD5 7d5c0a5d366f1e3eb49078d2339fca8a

Comments