MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f4541e8a44142832d5ad0897a22d88d0caab4ffc0179026906e9f19c3dbcffcb. 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: 15
| SHA256 hash: | f4541e8a44142832d5ad0897a22d88d0caab4ffc0179026906e9f19c3dbcffcb |
|---|---|
| SHA3-384 hash: | 64dc3371e126a04131a9d5a99f14ab4308bbcde92fbe3e5e5b4ce0994bbd3f22c4176959355538274e4f5d2dbd5968a1 |
| SHA1 hash: | e41c42a0adf9576c87b572bdb22800d3c5799d6b |
| MD5 hash: | 950ff528de61de0c950606d52d8b6c73 |
| humanhash: | low-december-september-earth |
| File name: | explorer.exe |
| Download: | download sample |
| Signature | ValleyRAT |
| File size: | 171'640 bytes |
| First seen: | 2026-02-06 14:06:56 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | fb51ede541a9ad63bf23d302e319d2a0 (73 x ValleyRAT, 1 x Gh0stRAT) |
| ssdeep | 3072:JO55k/y5dAj+BMTYlgEQnB+Y+pek7+3OrFZeUqe6oQEVwNTm92Z2Stc:JO5n5d56TYZQnB+DpekyyqmCTSZ |
| Threatray | 446 similar samples on MalwareBazaar |
| TLSH | T1C8F38E4737A450F9D4A78235C9A29B46E773B466073197CF17A086AA2F237D0BE39331 |
| TrID | 44.4% (.EXE) Win64 Executable (generic) (10522/11/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3) |
| Magika | pebin |
| Reporter |  Ling |
| Tags: | exe GhostRat Trojan:Win64/GhostRat.CKD!MTB ValleyRAT |
CNGaoLing
This sample has been reviewed by Microsoft researchers and determined to be malware. (Trojan:Win64/GhostRat.CKD!MTB)Intelligence
File Origin
# of uploads :
1
# of downloads :
164
Origin country :
USVendor Threat Intelligence
Malware configuration found for:
ValleyFall
Details
Malware family:
n/a
ID:
1
File name:
f4541e8a44142832d5ad0897a22d88d0caab4ffc0179026906e9f19c3dbcffcb.exe
Verdict:
Malicious activity
Analysis date:
2026-02-06 10:46:41 UTC
Tags:
valleyrat rat silverfox winos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
WinosStager
Detection(s):
Verdict:
Malicious
Score:
70%
Tags:
injection emotet obfusc crypt
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm invalid-signature manuscrypt microsoft_visual_cc signed
Verdict:
Malicious
Labled as:
Trojan.Generic
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-02-06T07:10:00Z UTC
Last seen:
2026-02-06T08:07:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Win32.Farfli.gen
Malware family:
ValleyRAT
Verdict:
Malicious
Score:
96%
Verdict:
Malware
File Type:
PE
Gathering data
Verdict:
Malicious
Threat:
Family.VALLEYRAT
Threat name:
Win64.Backdoor.Valleyrat
Status:
Malicious
First seen:
2026-02-06 10:46:42 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
valleyrat
Similar samples:
+ 436 additional samples on MalwareBazaar
Result
Malware family:
valleyrat_s2
Score:
10/10
Tags:
family:valleyrat_s2
Malware Config
C2 Extraction:
127.0.0.1:6666
Unpacked files
SH256 hash:
f4541e8a44142832d5ad0897a22d88d0caab4ffc0179026906e9f19c3dbcffcb
MD5 hash:
950ff528de61de0c950606d52d8b6c73
SHA1 hash:
e41c42a0adf9576c87b572bdb22800d3c5799d6b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | 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: | 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: | Indicator_MiniDumpWriteDump |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | ValleyRAT |
|---|---|
| Author: | NDA0E |
| Description: | Detects ValleyRAT |
| 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.
Web download
Delivery method
Distributed via web download
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