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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c. 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 YARA 32 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c
SHA3-384 hash: 2ae3db85e41837f2f8779060045e6cc752d401363d17c9b00b6b1cabd1cfdae01b99c25933d33e25710636ef42a502de
SHA1 hash: bc869e74bc2db6a25d6a798210a5bcfbeef1e333
MD5 hash: 28082ae3d4df7758dbf0a6a27d8d0fb5
humanhash: saturn-pluto-stairway-florida
File name:install.1.2.03.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:33'925'792 bytes
First seen:2026-11-01 03:49:12 UTC
Last seen:2026-11-01 04:23:29 UTC
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash 20abbe0f6ab059ea4a375bcb6b8a717b (8 x ValleyRAT)
ssdeep 196608:PqEfM3r4vGOgAVAiZfFK0SBqtiEPFNPTP:n6qpr
TLSH T16C770646FA414DD2F85846F588ABB7A023FEBD7582D1C30721D87325AFAF29C0E93195
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon 009269ecd4d42900 (9 x ValleyRAT, 2 x CobaltStrike)
Reporter Ling
Tags:exe PatchedHostLoader SilverFox ValleyRAT


Avatar
CNGaoLing
The sample is retrieved from "https://www.udn48vb.com/nlod27"

SilverFox / PatchedHostLoader.airep
IOC (zauxss.net) (20260914back.oss-cn-beijing.aliyuncs.com) (7y0z2j.oss-cn-beijing.aliyuncs.com) (mm2027.oss-cn-hangzhou.aliyuncs.com) (new2027.oss-cn-hongkong.aliyuncs.com) (47.238.85.63:7300)

Intelligence

File Origin
# of uploads :
2
# of downloads :
197
Origin country :
FR FR
Vendor Threat Intelligence
No detections
Malware family:
gh0st
Create hunting rule
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-11-01 03:52:17 UTC
Tags:
rat gh0st stego payload auto-sch auto-reg evasion
Link:
https://app.any.run/tasks/f6da63d6-635d-48e2-a21e-c5e19aff11fa

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=6ae6b6c4b175ade21dcede50
Tags:
injection shellcode cobalt blic
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file
Enabling the 'hidden' option for recently created files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm dropper expired-cert fingerprint invalid-signature microsoft_visual_cc overlay packed packed signed
Link:
https://www.filescan.io/uploads/6ae6b6bdad93ec3e9ced83bc/reports/c39180b2-e26e-47ed-ba93-03135ea8e4f8/overview
Verdict:
Malicious
Labled as:
Yogi.Generic
Link:
https://www.hybrid-analysis.com/sample/36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-11-01T00:42:00Z UTC
Last seen:
2026-11-02T19:56:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan-Dropper.Win32.Generic
Link:
https://opentip.kaspersky.com/36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
rans.adwa.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1995981
Signature
Adds extensions / path to Windows Defender exclusion list (Registry)
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Creates multiple autostart registry keys
Deletes shadow drive data (may be related to ransomware)
Disables security and backup related services
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies the hosts file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file contains section with special chars
Potential Privilege Escalation using Task Scheduler highest RunLevel
Sigma detected: Execution from Suspicious Folder
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Parent in Public Folder Suspicious Process
Sigma detected: Suspicious Program Location with Network Connections
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Uses cmd line tools excessively to alter registry or file data
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1995981 Sample: install.1.2.03.exe Startdate: 01/11/2026 Architecture: WINDOWS Score: 100 99 zauxss.net 2->99 101 twc.trafficmanager.net 2->101 103 8 other IPs or domains 2->103 117 Suricata IDS alerts for network traffic 2->117 119 Malicious sample detected (through community Yara rule) 2->119 121 Antivirus detection for dropped file 2->121 123 13 other signatures 2->123 10 4bqOaW.exe 8 21 2->10         started        15 install.1.2.03.exe 1 12 2->15         started        17 4bqOaW.exe 2->17         started        19 9 other processes 2->19 signatures3 process4 dnsIp5 111 sc-2c0z.cn-hangzhou.oss-adns.aliyuncs.com.gds.alibabadns.com 118.178.60.2, 443, 49746, 49748 ALIBABA-CN-NETHangzhouAlibabaAdvertisingCoLtdCN China 10->111 113 sc-2k5x.cn-beijing.oss-adns.aliyuncs.com.gds.alibabadns.com 39.103.20.84, 443, 49756, 49757 ALIBABA-CN-NETHangzhouAlibabaAdvertisingCoLtdCN China 10->113 89 C:\Program Files (x86)\VvWbPU\q2CSpW.exe, PE32 10->89 dropped 91 C:\Program Files (x86)\VvWbPU\XPSPLOG.dll, PE32 10->91 dropped 145 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 10->145 147 Creates multiple autostart registry keys 10->147 149 Tries to detect virtualization through RDTSC time measurements 10->149 21 q2CSpW.exe 10->21         started        26 cmd.exe 1 10->26         started        38 4 other processes 10->38 115 39.103.20.97, 443, 49744 ALIBABA-CN-NETHangzhouAlibabaAdvertisingCoLtdCN China 15->115 93 C:\Windows\Temp\ranchserv.jpg, PE32+ 15->93 dropped 95 C:\Users\Public\Wb37Gt\UxEnhance64.dll, PE32+ 15->95 dropped 97 C:\Users\Public\Wb37Gt\4bqOaW.exe, PE32+ 15->97 dropped 151 Unusual module load detection (module proxying) 15->151 153 Found direct / indirect Syscall (likely to bypass EDR) 15->153 155 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 17->155 28 ComputerDefaults.exe 17->28         started        30 winver.exe 17->30         started        157 Uses cmd line tools excessively to alter registry or file data 19->157 32 reg.exe 1 1 19->32         started        34 reg.exe 1 1 19->34         started        36 reg.exe 1 1 19->36         started        40 7 other processes 19->40 file6 signatures7 process8 dnsIp9 105 47.238.85.63, 49752, 7300 ALIBABA-CN-NETAlibabaUSTechnologyCoLtdCN Hong Kong SAR China 21->105 107 twc.trafficmanager.net 168.61.215.74, 123, 53635 MICROSOFT-CORP-MSN-AS-BLOCK-MicrosoftCorporationUS United States 21->107 109 new2027.oss-cn-hongkong.aliyuncs.com 47.79.64.181, 443, 49753, 49754 ALIBABA-CN-NETAlibabaUSTechnologyCoLtdCN Hong Kong SAR China 21->109 81 C:\ProgramData\0c1ee20c.exe, PE32 21->81 dropped 83 C:\Program Files (x86)\U6crrq\XPSPLOG.dll, PE32 21->83 dropped 85 C:\Program Files (x86)\U6crrq\7p50n.exe, PE32 21->85 dropped 87 C:\Windows\System32\drivers\etc\hosts, ASCII 21->87 dropped 125 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 21->125 127 Creates an undocumented autostart registry key 21->127 129 Creates multiple autostart registry keys 21->129 137 3 other signatures 21->137 42 cmd.exe 21->42         started        45 cmd.exe 21->45         started        47 cmd.exe 21->47         started        55 4 other processes 21->55 131 Uses schtasks.exe or at.exe to add and modify task schedules 26->131 133 Potential Privilege Escalation using Task Scheduler highest RunLevel 26->133 49 conhost.exe 26->49         started        57 3 other processes 26->57 51 4bqOaW.exe 28->51         started        135 Adds extensions / path to Windows Defender exclusion list (Registry) 32->135 53 conhost.exe 38->53         started        59 15 other processes 38->59 file10 signatures11 process12 signatures13 139 Deletes shadow drive data (may be related to ransomware) 42->139 61 conhost.exe 42->61         started        63 conhost.exe 45->63         started        77 3 other processes 45->77 65 net.exe 47->65         started        67 conhost.exe 47->67         started        141 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 51->141 143 Found direct / indirect Syscall (likely to bypass EDR) 51->143 69 conhost.exe 55->69         started        71 conhost.exe 55->71         started        73 icacls.exe 55->73         started        75 conhost.exe 55->75         started        process14 process15 79 net1.exe 65->79         started       
Score:
54%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c
Gathering data
Threat name:
Win64.Trojan.Malgent
Create hunting rule
Status:
Malicious
First seen:
2026-11-01 03:50:36 UTC
File Type:
PE+ (Exe)
Extracted files:
23
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g33psmy3l37hcjhqio4khojcu3cn6xftz434wfecpovli6vhbr6a._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
discovery
Link:
https://tria.ge/reports/261101-edh4tatw3j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Reads the TCP/IP host and domain name from the registry
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/36f6f9331b5e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.27
Link:
https://yomi.yoroi.company/submissions/36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
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:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:grakate_stealer_nov_2021
Create hunting rule
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:MULTI_Malware_RemcosRAT_ForgeAuto_4785f0c3
Create hunting rule
Author:Marjoriefort
Description:Detects RemcosRAT (inconnu, etat binaire)
Rule name:MULTI_Malware_Unknown_ForgeAuto_4ca5a35d
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (inconnu, etat binaire)
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:ProgramLanguage_Golang
Create hunting rule
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:reverse_http
Create hunting rule
Author:CD_R0M_
Description:Identify strings with http reversed (ptth)
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SCRIPT_Dropper_Unknown_ForgeAuto_0507f067_Script
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (script_js, etat script)
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_HTML_XMLHTTP_Redirect_Kit
Create hunting rule
Author:Marjoriefort
Description:HTML avec exfiltration XMLHTTP + redirection window.location - kit phishing frais
Reference:Veille fraicheur 2026-09-14 / cluster HTML
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
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
Create hunting rule
Author:vietdx.mb
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:TigerRAT_pe_yaraify
Create hunting rule
Author:hunts-yara-code
Description:YARAify-tightened byte rule from 9 sample(s) -- VERIFY hits
Rule name:WIN_Malware_PsychedelicStealer_ForgeAuto_14838da1_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects PsychedelicStealer (pe, etat extrait)
Rule name:WIN_Malware_Unknown_ForgeAuto_2ffc3572
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_43faefd2
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_5001c94c
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_7e8e91c4
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_92a28498
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_f1079127
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_ValleyRAT_ForgeAuto_9ddd32f3
Create hunting rule
Author:Marjoriefort
Description:Detects ValleyRAT (pe, etat binaire)

File information

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

Web download

ValleyRAT

Executable exe 36f6f9331b5efe7124f043b8a3b922a6c4df5cb3cf37cb14827baab47aa70c7c

(this sample)

  
Delivery method
Distributed via web download

Comments