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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2. 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: 11


Intelligence 11 IOCs YARA 31 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2
SHA3-384 hash: a06affe83ea3e994d2fb386b3fbd9988e0a4182b6f67745f1e5ee92ae8aa8caaaa13a5ce040a8fbc0789de9d854ea301
SHA1 hash: 1269b80d40ed1f02e26d3160fc79a7ec95a79c28
MD5 hash: c66612eb70cfcca434d65004f1a4638b
humanhash: five-lion-oxygen-virginia
File name:install.3.1.03.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:33'925'792 bytes
First seen:2026-10-27 12:01:04 UTC
Last seen:2026-10-27 12:53:30 UTC
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash 20abbe0f6ab059ea4a375bcb6b8a717b (6 x ValleyRAT)
ssdeep 196608:6qEfM3r4vGOgAVAiZfFK0SBqtiEPFNPTp:S6qpN
TLSH T183770646FA414DD2F85846F588ABB7A023FEBD7582D1C30721D87325AFAF29C0E93195
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 (7 x ValleyRAT, 2 x CobaltStrike)
Reporter Ling
Tags:exe PatchedHostLoader SilverFox ValleyRAT


Avatar
CNGaoLing
The sample is retrieved from "https://doubao-h.com.cn" / "https://doubao-cu.com.cn" / "https://doubao-cib.com.cn" -> "https://www.gun731.com/lod27"

SilverFox / PatchedHostLoader.airep
IOC (zauxss.net) (bzb102.oss-cn-beijing.aliyuncs.com) (mm2027.oss-cn-hangzhou.aliyuncs.com) (20260914back.oss-cn-beijing.aliyuncs.com) (new2027.oss-cn-hongkong.aliyuncs.com)

Intelligence

File Origin
# of uploads :
2
# of downloads :
177
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:
2026-10-27 13:23:59 UTC
Tags:
rat gh0st stego payload auto-sch auto-reg
Link:
https://app.any.run/tasks/99713109-7ee6-4cdc-aadd-14b99cffaa5a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ae0929e3a56bbccb37beb38
Tags:
injection cobalt virus blic
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-10-27T08:13:00Z UTC
Last seen:
2026-10-27T09:10:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan-Dropper.Win32.Generic
Link:
https://opentip.kaspersky.com/a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2/results?tab=lookup
Result
Threat name:
GhostRat
Create hunting rule
Detection:
malicious
Classification:
rans.troj.adwa.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1992730
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 dropped 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 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
Yara detected GhostRat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1992730 Sample: install.3.1.03.exe Startdate: 27/10/2026 Architecture: WINDOWS Score: 100 90 sc-2c0z.cn-hangzhou.oss-adns.aliyuncs.com.gds.alibabadns.com 2->90 92 zauxss.net 2->92 94 11 other IPs or domains 2->94 110 Suricata IDS alerts for network traffic 2->110 112 Malicious sample detected (through community Yara rule) 2->112 114 Antivirus detection for dropped file 2->114 116 14 other signatures 2->116 9 UxV4UN.exe 8 21 2->9         started        14 install.3.1.03.exe 1 12 2->14         started        16 UxV4UN.exe 2->16         started        18 15 other processes 2->18 signatures3 process4 dnsIp5 102 sc-2c0z.cn-hangzhou.oss-adns.aliyuncs.com.gds.alibabadns.com 118.178.60.2, 443, 49712, 49714 ALIBABA-CN-NETHangzhouAlibabaAdvertisingCoLtdCN China 9->102 104 sc-2k5x.cn-beijing.oss-adns.aliyuncs.com.gds.alibabadns.com 39.103.20.84, 443, 49719, 49720 ALIBABA-CN-NETHangzhouAlibabaAdvertisingCoLtdCN China 9->104 80 C:\Program Files (x86)\8Bln63\XPSPLOG.dll, PE32 9->80 dropped 82 C:\Program Files (x86)\8Bln63\8Bln63.exe, PE32 9->82 dropped 138 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 9->138 140 Creates multiple autostart registry keys 9->140 142 Tries to detect virtualization through RDTSC time measurements 9->142 20 8Bln63.exe 9->20         started        25 cmd.exe 1 9->25         started        37 4 other processes 9->37 106 sc-22s9.cn-beijing.oss-adns.aliyuncs.com.gds.alibabadns.com 39.103.20.139, 443, 49705 ALIBABA-CN-NETHangzhouAlibabaAdvertisingCoLtdCN China 14->106 84 C:\Windows\Temp\ranchserv.jpg, PE32+ 14->84 dropped 86 C:\Users\Public\h7c41m\UxV4UN.exe, PE32+ 14->86 dropped 88 C:\Users\Public\h7c41m\UxEnhance64.dll, PE32+ 14->88 dropped 144 Unusual module load detection (module proxying) 14->144 146 Found direct / indirect Syscall (likely to bypass EDR) 14->146 148 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 16->148 27 ComputerDefaults.exe 16->27         started        29 winver.exe 16->29         started        108 127.0.0.1 unknown unknown 18->108 150 Uses cmd line tools excessively to alter registry or file data 18->150 31 reg.exe 18->31         started        33 reg.exe 1 1 18->33         started        35 reg.exe 1 1 18->35         started        39 8 other processes 18->39 file6 signatures7 process8 dnsIp9 96 47.238.85.63, 49717, 7300 ALIBABA-CN-NETAlibabaUSTechnologyCoLtdCN Hong Kong SAR China 20->96 98 twc.trafficmanager.net 168.61.215.74, 123, 51755 MICROSOFT-CORP-MSN-AS-BLOCK-MicrosoftCorporationUS United States 20->98 100 new2027.oss-cn-hongkong.aliyuncs.com 47.79.64.181, 443, 49718, 49722 ALIBABA-CN-NETAlibabaUSTechnologyCoLtdCN Hong Kong SAR China 20->100 72 C:\ProgramData\19d1adef.exe, PE32 20->72 dropped 74 C:\Program Files (x86)\7jZq2j19\XPSPLOG.dll, PE32 20->74 dropped 76 C:\Program Files (x86)\7jZq2j19\FisH3eH.exe, PE32 20->76 dropped 78 C:\Windows\System32\drivers\etc\hosts, ASCII 20->78 dropped 118 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 20->118 120 Creates an undocumented autostart registry key 20->120 122 Creates multiple autostart registry keys 20->122 130 4 other signatures 20->130 41 cmd.exe 20->41         started        44 cmd.exe 20->44         started        54 4 other processes 20->54 124 Uses schtasks.exe or at.exe to add and modify task schedules 25->124 126 Potential Privilege Escalation using Task Scheduler highest RunLevel 25->126 56 4 other processes 25->56 46 UxV4UN.exe 27->46         started        128 Adds extensions / path to Windows Defender exclusion list (Registry) 31->128 48 Conhost.exe 31->48         started        50 conhost.exe 37->50         started        58 16 other processes 37->58 52 conhost.exe 39->52         started        file10 signatures11 process12 signatures13 132 Deletes shadow drive data (may be related to ransomware) 41->132 60 conhost.exe 41->60         started        62 conhost.exe 44->62         started        134 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 46->134 136 Found direct / indirect Syscall (likely to bypass EDR) 46->136 64 Conhost.exe 50->64         started        66 conhost.exe 54->66         started        68 conhost.exe 54->68         started        70 conhost.exe 54->70         started        process14
Score:
54%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2
Gathering data
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-10-27 12:01:37 UTC
File Type:
PE+ (Exe)
Extracted files:
23
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vhrmdnpje6btlvajt3ba5eonvhg4dndlih3mqbr7ouejm2wrfwza._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution exploit persistence privilege_escalation trojan
Link:
https://tria.ge/reports/261027-n642esdx5k/
Behaviour
Uses Task Scheduler COM API
System policy modification
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: LoadsDriver
Suspicious behavior: EnumeratesProcesses
Scheduled Task/Job: Scheduled Task
Runs net.exe
Modifies Control Panel
Checks processor information in registry
System Location Discovery: System Language Discovery
Reads the TCP/IP host and domain name from the registry
Executes a command shell one-liner
Event Triggered Execution: Screensaver
Enumerates physical storage devices
Enumerates video capture drivers
Launches sc.exe
Drops file in Program Files directory
Drops file in System32 directory
Indicator Removal: Clear Persistence
Adds Run key to start application
Modifies file permissions
Loads dropped DLL
Executes dropped EXE
Disables service(s)
Checks computer location settings
Possible privilege escalation attempt
Modifies RDP port number used by Windows
Drops file in Drivers directory
Command and Scripting Interpreter: PowerShell
Windows security bypass
UAC bypass
Malware family:
CobaltStrike
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a9e2c1b5e927/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/a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2

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: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 a9e2c1b5e9278335d4099ec20e91cda9cdc1b46b41f6c8063f7508966ad12db2

(this sample)

  
Delivery method
Distributed via web download

Comments