MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0. 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: 14


Intelligence 14 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0
SHA3-384 hash: aa8e9ec23c60756812e7659480ca63ec64d6de05a659935b582f96187d485a1897668c878875161167b8c980eea60fda
SHA1 hash: a5833eec48932d697f0cdc1780e4010667513f0d
MD5 hash: 4d56b55b133743418061a05b4c09cb74
humanhash: gee-eight-timing-foxtrot
File name:点击安装中文语言#.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:3'806'056 bytes
First seen:2026-08-07 15:56:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a56c705e46271b9765bce74b10804dac (1 x ValleyRAT)
ssdeep 12288:dhREHV6oG9qxwOmSt2VHfg5QPNzUzv3IgNaSWYdU4881GNT0Qkb3NnX+ScsTLTX9:dhCkat2VHaUewNLrvq1jDwbjfFN7Q66
TLSH T1A3069B24BDBA812DD027FFB83DECF99EE9DB66191506646B001703478626AC0CF4B5BD
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 6563bbd756505099 (13 x ValleyRAT, 1 x VenomRAT)
Reporter Ling
Tags:exe SilverFox Trojan/SilverFox.sj[pd] ValleyRAT


Avatar
CNGaoLing
Trojan/SilverFox.sj[pd]
IOC (IP 154.12.19.70:22011)

Intelligence

File Origin
# of uploads :
1
# of downloads :
159
Origin country :
US US
Vendor Threat Intelligence
Malware configuration found for:
ValleyFall
Details
Link:
https://research.acce.ciphertechsolutions.com/results/2c7a6b54-454a-433b-9e9d-ea4356a3d6f1/
Malware family:
n/a
ID:
1
File name:
点击安装中文语言#.exe
Verdict:
Malicious activity
Analysis date:
2026-08-07 15:43:28 UTC
Tags:
processkiller payload valleyrat silverfox rat winos auto generic bootrepair-sys vuln-driver
Link:
https://app.any.run/tasks/89794459-467e-45b0-8c04-2f925810b89a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
WinosStager
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79168/
Detection(s):
ditekSHen.MALWARE.Win.Ransomware.MedusaLocker.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Restart of the analyzed sample
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Creating a file in the %temp% directory
Creating a service
Launching a service
Loading a system driver
Setting a prohibition to launch some applications
Running batch commands
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Launching a process
Loading a suspicious library
Creating a file in the Windows subdirectories
Possible injection to a system process
Enabling autorun for a service
Forced shutdown of a system process
Blocking the Windows Defender launch
Blocking the Windows Security Center notifications
Blocking the User Account Control
Prohibiting to launch files
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug crypto evasive fingerprint microsoft_visual_cc reconnaissance signed
Link:
https://www.filescan.io/uploads/6a76002c62c244a9d6d75715/reports/a6d80656-a6c5-497b-beca-8c9077fd9ded/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-08-07T11:59:00Z UTC
Last seen:
2026-08-09T13:45:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0/results?tab=lookup
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e642d051-0abc-4a7d-a4c8-406943fc8630
Score:
69%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/4d56b55b133743418061a05b4c09cb74
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0/
Threat name:
Win64.Backdoor.Valleyrat
Create hunting rule
Status:
Malicious
First seen:
2026-08-07 15:57:36 UTC
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqw7qbj6ikr7tdhepkukbujqycvjhhj53gufquar3xlglkcgh7qa._file
Result
Malware family:
valleyrat_s2
Create hunting rule
Score:
  10/10
Tags:
family:valleyrat_s2 backdoor credential_access defense_evasion discovery evasion execution persistence ransomware trojan
Link:
https://tria.ge/reports/260807-tdkd7s1ygz/
Behaviour
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Executes a command shell one-liner
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
Boot or Logon Autostart Execution: LSASS Driver
Executes dropped EXE
Loads dropped DLL
Windows security modification
Server Software Component: Terminal Services DLL
Detects ValleyRAT payload
Family: ValleyRat
Modifies Windows Defender Real-time Protection settings
Modifies Windows Defender TamperProtection settings
Modifies Windows Defender notification settings
Modifies firewall policy service
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
154.12.19.70:22011
154.12.19.70:22012
Unpacked files
SH256 hash:
a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0
MD5 hash:
4d56b55b133743418061a05b4c09cb74
SHA1 hash:
a5833eec48932d697f0cdc1780e4010667513f0d
Link:
https://www.unpac.me/results/90ee30b0-66d4-419c-966a-c972a7e52e20/
SH256 hash:
a9e800cd3b7ec434b57a7a53ebf285e3b8fbf8949a1a951cd13cc2656632c561
MD5 hash:
0010b1e0e57a1d4638cbd7cea8e997bb
SHA1 hash:
ce07268b36dc9781dbad867189cf5f1444f11efb
Link:
https://www.unpac.me/results/90ee30b0-66d4-419c-966a-c972a7e52e20/
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/a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0

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_Debugger
Create hunting rule
Rule name:Check_FindWindowA_iat
Create hunting rule
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
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:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:ICMLuaUtil_UACMe_M41
Create hunting rule
Author:Marius 'f0wL' Genheimer <hello@dissectingmalwa.re>
Description:A Yara rule for UACMe Method 41 -> ICMLuaUtil Elevated COM interface
Reference:https://github.com/hfiref0x/UACME
Rule name:INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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_rule_vldslv
Create hunting rule
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.

Web download

ValleyRAT

Executable exe a42df8053e42a3f98ce47aa8a0d130c0aa939d3dd9a8585011ddd665a8463fe0

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/79168/

Comments