MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc. 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: 7


Intelligence 7 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc
SHA3-384 hash: 77666cc4cc7aff430ee4d01a950ca09c9a30fb19fb9ac60fdfbffc41ba51fa0afa8fb494273568b11d42be2f5dc4213a
SHA1 hash: 758c487eb54b5cd0d7cda833504ed0fbbe070a73
MD5 hash: 0079ab541b10ef2ce429c08c0c7585da
humanhash: salami-uncle-twenty-mike
File name:2026.08.11裁员名单及补偿方案WPS.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:3'634'560 bytes
First seen:2026-08-14 05:08:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b7b229d0423fd7bce3f8465f9024138a (2 x ValleyRAT)
ssdeep 49152:5mVd2RbhCuzVcJez7ZIkJh53J8PF1K/oJsv6tWKFdu9CgPTvG7FqOqRsjfJXcRWh:rb1QNJsv6tWKFdu9Cgiiix
TLSH T12CF58D87B2F61364D9B7C134C6E7A16ADA317C428F60A9CF125CB7195A736F01E3B218
TrID 50.0% (.EXE) Generic Win/DOS Executable (2002/3)
49.9% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon 72b2b3b2ece6e6b2 (1 x ValleyRAT)
Reporter Ling
Tags:exe SilverFox Trojan/SilverFox.bg[qtsc] ValleyRAT


Avatar
CNGaoLing
Trojan/SilverFox.bg[qtsc]
IOC (Domain etgul.cn) (IP 18.167.107.230:8080)

Intelligence

File Origin
# of uploads :
1
# of downloads :
140
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
2026.08.11裁员名单及补偿方案WPS.exe
Verdict:
Malicious activity
Analysis date:
2026-08-14 05:01:04 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/17bd1d0a-cfb7-4831-844a-9f7971c88c61

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/80997/
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Moving of the original file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug base64 crypto expired-cert fingerprint invalid-signature microsoft_visual_cc packed reconnaissance signed
Link:
https://www.filescan.io/uploads/6a7ea30a23d37e4240d28cbc/reports/be8149d4-d52f-4e94-9a1c-b1fcea2721f3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc
Verdict:
Clean
File Type:
exe x64
Link:
https://opentip.kaspersky.com/660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/625f7757-e63b-4d9b-9511-cd8db08a8f1e
Score:
10%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/0079ab541b10ef2ce429c08c0c7585da
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=myhwj4r6mj3wxtkgea45gtfzkeptmnbxrrhhw4fahlwcukwhq66a._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/260814-ftdppsvgmc/
Behaviour
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Enumerates physical storage devices
Checks installed software on the system
Checks computer location settings
Unpacked files
SH256 hash:
660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc
MD5 hash:
0079ab541b10ef2ce429c08c0c7585da
SHA1 hash:
758c487eb54b5cd0d7cda833504ed0fbbe070a73
Link:
https://www.unpac.me/results/02d29584-9c9a-40a5-8a03-89ad7aa2a365/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc

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
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__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SUSP_Websites
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference of suspicious sites that might be used to download further malware
Rule name:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
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
Create hunting rule
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.

File information

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

Web download

ValleyRAT

Executable exe 660f64f23e62776bcd462039d34cb9511f3634378c4e7b70a03aec2a2ac787bc

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/80997/

Comments