MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39cdc5994f3fea1f717ae7e7c16fccae5b89bc6efe98568c29fe87fb4887ed80. 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: 10


Intelligence 10 IOCs 2 YARA 25 File information Comments

SHA256 hash: 39cdc5994f3fea1f717ae7e7c16fccae5b89bc6efe98568c29fe87fb4887ed80
SHA3-384 hash: 455f89ab768321e3e201228919004feab298cdb604e6d8287aec7590b5edb73463205559bfb5a52014016fbaea23a3f9
SHA1 hash: 19f1c8cdc795c159775b75c2e19864416ed4e4ef
MD5 hash: d699278decb19c146d0a98d52992eb05
humanhash: crazy-sink-romeo-arkansas
File name:D699278DECB19C146D0A98D52992EB05.dll
Download: download sample
Signature ValleyRAT
File size:5'764'096 bytes
First seen:2026-08-17 05:05:20 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash 015ade0acc2769b31f99b52582ac5d1a (10 x ValleyRAT)
ssdeep 98304:eJ4pESpilkCHK6fT5ippzPTq0YqKvhoKZ4OiZrq1DfPHNADtV6v+zM+rwroDrroC:eKDcKpzPTq0YlvhBZ4O7NADtV6v+zZRO
TLSH T1D346CF133E9C00A6E05A1133CEA9B6ECF16EBDE83B76019715A4BB1DFD32741CA1456B
TrID 22.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
22.7% (.EXE) Win64 Executable (generic) (6522/11/2)
17.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.7% (.EXE) Win32 Executable (generic) (4504/4/1)
7.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 798e960f3396cc71 (33 x ValleyRAT)
Reporter abuse_ch
Tags:dll RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
156.251.16.29:7811

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
156.251.16.29:7811 https://threatfox.abuse.ch/ioc/1877641/
156.251.16.29:7800 https://threatfox.abuse.ch/ioc/1877642/

Intelligence


File Origin
# of uploads :
1
# of downloads :
177
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug bitsadmin certutil cmd crypto dropper evasive explorer fingerprint keylogger lolbin microsoft_visual_cc msiexec onedrivestandaloneupdater packed reconnaissance valleyrat
Verdict:
Malicious
File Type:
dll x32
First seen:
2026-08-14T03:04:00Z UTC
Last seen:
2026-08-17T02:00:00Z UTC
Hits:
~100
Result
Threat name:
ValleyRAT
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Signature
Found malware configuration
Found stalling execution ending in API Sleep call
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Yara detected ValleyRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1958795 Sample: r31HMX15ZU.dll Startdate: 17/08/2026 Architecture: WINDOWS Score: 96 103 vsdekd.club 2->103 105 api.ipify.org 2->105 115 Suricata IDS alerts for network traffic 2->115 117 Found malware configuration 2->117 119 Multi AV Scanner detection for submitted file 2->119 121 4 other signatures 2->121 11 loaddll32.exe 1 2->11         started        13 rundll32.exe 2->13         started        signatures3 process4 process5 15 rundll32.exe 3 16 11->15         started        20 cmd.exe 1 11->20         started        22 rundll32.exe 5 11->22         started        24 13 other processes 11->24 dnsIp6 107 vsdekd.club 156.251.16.29, 49748, 49752, 49761 TERAEXCH-TcloudnetUS Hong Kong SAR China 15->107 109 api.ipify.org 172.67.74.152, 443, 49759, 49762 CLOUDFLARENET-CloudflareIncUS Canada 15->109 83 06C5BB12-4B09-4DA0-9820-316C1E4F4A1F.ExE, PE32 15->83 dropped 85 C:\...behaviorgraphFExperience.NvStreamSrv.NVX.EXE, PE32 15->85 dropped 111 System process connects to network (likely due to code injection or exploit) 15->111 113 Found stalling execution ending in API Sleep call 15->113 26 rundll32.exe 7 20->26         started        87 B52CF6BE-DCC9-4AD4-8D40-0DDBF701EAFA.ExE, PE32 22->87 dropped 89 C:\...behaviorgraphFExperience.NvStreamSrv.NVX.EXE, PE32 22->89 dropped 29 cmd.exe 22->29         started        31 taskkill.exe 1 22->31         started        91 F46F91AE-FD96-4B01-B6CC-D6C0507F894B.ExE, PE32 24->91 dropped 93 BC19DEC9-EDB0-4340-9F4F-4D7F05B51DE3.ExE, PE32 24->93 dropped 95 BC035CD0-ED2A-4017-8211-51C7D6CDE3C6.ExE, PE32 24->95 dropped 97 21 other files (none is malicious) 24->97 dropped 33 cmd.exe 24->33         started        35 cmd.exe 24->35         started        37 taskkill.exe 1 24->37         started        39 3 other processes 24->39 file7 signatures8 process9 file10 99 C6E2A199-01FC-4738-8751-A329F52956DB.ExE, PE32 26->99 dropped 101 C:\...behaviorgraphFExperience.NvStreamSrv.NVX.EXE, PE32 26->101 dropped 41 cmd.exe 1 26->41         started        43 taskkill.exe 1 26->43         started        55 2 other processes 29->55 45 conhost.exe 31->45         started        47 cmd.exe 33->47         started        49 conhost.exe 33->49         started        57 2 other processes 35->57 51 conhost.exe 37->51         started        53 conhost.exe 39->53         started        process11 process12 59 cmd.exe 1 41->59         started        61 conhost.exe 41->61         started        63 conhost.exe 43->63         started        65 tasklist.exe 1 47->65         started        67 find.exe 47->67         started        69 tasklist.exe 55->69         started        71 find.exe 55->71         started        73 tasklist.exe 57->73         started        75 find.exe 57->75         started        process13 77 tasklist.exe 1 59->77         started        79 timeout.exe 1 59->79         started        81 find.exe 1 59->81         started       
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Valley
Status:
Malicious
First seen:
2026-08-14 16:36:09 UTC
File Type:
PE (Dll)
Extracted files:
950
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
defense_evasion discovery execution
Behaviour
Delays execution with timeout.exe
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Discovers running processes
Drops file in System32 directory
Enumerates connected drives
Looks up external IP address via web service
Executes dropped EXE
Badlisted process makes network request
Unpacked files
SH256 hash:
39cdc5994f3fea1f717ae7e7c16fccae5b89bc6efe98568c29fe87fb4887ed80
MD5 hash:
d699278decb19c146d0a98d52992eb05
SHA1 hash:
19f1c8cdc795c159775b75c2e19864416ed4e4ef
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:Check_OutputDebugStringA_iat
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:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
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:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
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:Windows_Trojan_Winos_464b8a2e
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.

Comments