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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ad755d2dfeaa23b80d561656848d12d8e66edd99b1169d63a936fe7b01da57ab. 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


Intelligence 13 IOCs 1 YARA 23 File information Comments

SHA256 hash: ad755d2dfeaa23b80d561656848d12d8e66edd99b1169d63a936fe7b01da57ab
SHA3-384 hash: e1848f7b6927450e323ef2b2a179ccc86077e60eee809db97845189b0aca6142c903311d331cd211e7ec108c72bac058
SHA1 hash: 9620ad472df59317e4c7ee4c007c0064194bc02e
MD5 hash: 245869b41ec410035f994240282e390c
humanhash: island-table-muppet-eleven
File name:245869B41EC410035F994240282E390C.dll
Download: download sample
Signature ValleyRAT
File size:126'464 bytes
First seen:2026-08-26 15:55:15 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash fc1d45e2b662c656e1a56e88c9fc63e6 (2 x ValleyRAT)
ssdeep 1536:xOO/K+x594lMgPjK/tgCDM4DR1I4lMzoF2CuUZqxdc7juEsWjcdNQvIeYoEtB1:z/YlPe/tTM+9ufk2Nk3YoEN
TLSH T1DBC33812FEA180F0CCDE333835657A3D476D7A61DAB859732354031A5B3CFC1AB26A62
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon da4cc552d9e34a26 (1 x ValleyRAT)
Reporter abuse_ch
Tags:dll RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
202.61.140.222:448

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
202.61.140.222:448 https://threatfox.abuse.ch/ioc/1888272/

Intelligence


File Origin
# of uploads :
1
# of downloads :
195
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a service
Loading a system driver
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file
Enabling the 'hidden' option for recently created files
Creating a process from a recently created file
Creating a file in the drivers directory
Deleting a recently created file
Launching a service
Creating a window
Connection attempt to an infection source
Sending a TCP request to an infection source
Enabling autorun for a service
Forced shutdown of a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug microsoft_visual_cc packed
Verdict:
Malicious
File Type:
dll x32
First seen:
2026-08-23T20:14:00Z UTC
Last seen:
2026-08-28T05:57:00Z UTC
Hits:
~1000
Result
Threat name:
ValleyRAT
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Found evasive API chain (may execute only if attached device has certain properties)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is not signed and drops a device driver
Sigma detected: Execution from Suspicious Folder
Sigma detected: Files With System Process Name In Unsuspected Locations
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Unusual module load detection (module proxying)
Yara detected UAC Bypass using CMSTP
Yara detected ValleyRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1964243 Sample: yWyP5LhVQX.dll Startdate: 26/08/2026 Architecture: WINDOWS Score: 100 57 Suricata IDS alerts for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 8 other signatures 2->63 7 loaddll32.exe 12 4 2->7         started        10 svchostsr.exe 2->10         started        12 svchostsr.exe 2->12         started        process3 signatures4 65 Contains functionality to bypass UAC (CMSTPLUA) 7->65 67 Found evasive API chain (may stop execution after checking mutex) 7->67 69 Found evasive API chain (may execute only if attached device has certain properties) 7->69 71 4 other signatures 7->71 14 rundll32.exe 9 1001 7->14         started        19 rundll32.exe 7->19         started        21 cmd.exe 1 7->21         started        23 2 other processes 7->23 process5 dnsIp6 43 202.61.140.222, 448, 49730, 49731 CTGSERVERLIMITED-AS-APCTGServerLimitedHK Singapore 14->43 35 C:\Users\Public\mstscax.dll, PE32 14->35 dropped 37 C:\Users\Public\mstext40.dll, PE32 14->37 dropped 39 C:\Users\Public\mstask.dll, PE32 14->39 dropped 41 927 other files (498 malicious) 14->41 dropped 45 Contains functionality to bypass UAC (CMSTPLUA) 14->45 47 Contains functionality to inject threads in other processes 14->47 49 Drops PE files to the user root directory 14->49 55 2 other signatures 14->55 25 prj6B4.tmp 14->25         started        51 System process connects to network (likely due to code injection or exploit) 19->51 53 Sample is not signed and drops a device driver 19->53 29 rundll32.exe 21->29         started        file7 signatures8 process9 file10 31 C:\Windows\System32\drivers\kvckiller.sys, PE32+ 25->31 dropped 33 C:\Users\user\...mbeddedDriverService.sys, PE32+ 29->33 dropped 73 Sample is not signed and drops a device driver 29->73 signatures11
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Yogi
Status:
Malicious
First seen:
2026-08-23 23:19:01 UTC
File Type:
PE (Dll)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery persistence
Behaviour
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Adds Run key to start application
Checks installed software on the system
Enumerates connected drives
Executes dropped EXE
Badlisted process makes network request
Drops file in Drivers directory
Sets service image path in registry
Unpacked files
SH256 hash:
ad755d2dfeaa23b80d561656848d12d8e66edd99b1169d63a936fe7b01da57ab
MD5 hash:
245869b41ec410035f994240282e390c
SHA1 hash:
9620ad472df59317e4c7ee4c007c0064194bc02e
Malware family:
ValleyRAT
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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:Driver_Safetica
Author:Nikos 'n0t' Totosis
Description:Detects Safetica kernel driver.
Rule name:GenericGh0st
Author:Still
Rule name:Gh0stKCP
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
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:malware_shellcode_hash
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_peb_parsing
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Rule name:pe_no_import_table
Description:Detect pe file that no import table
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: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.
Rule name:Windows_Generic_Threat_4b0b73ce
Author:Elastic Security
Rule name:WinosStager
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.

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