MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb. 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: 9

Intelligence 9 IOCs YARA 26 File information Comments

SHA256 hash:	c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb
SHA3-384 hash:	fa119c1b09bd21c142ab687e084ba24462d293dd84615927545d25cc499088e0f8744aeb41185a637a3949d1bda3fc30
SHA1 hash:	958a8b0d59e307ac4620fd643a51e0c0dcca4595
MD5 hash:	20931afbb469c9370b5b9740627b529c
humanhash:	green-johnny-august-friend
File name:	install_a.8.15.exe
Download:	download sample
Signature	ValleyRAT Create hunting rule
File size:	40'460'288 bytes
First seen:	2026-09-18 15:56:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e611cb40dae30a74fa3f15a0e816a66a (15 x ValleyRAT, 1 x Nitol)
ssdeep	98304:75KlECE+J6xkQmHTpksa7gFVfG6slKNc1Avu8ntZ6E6uzIneMm7iDkp6aEYejJ6K:75g/kkQmHBjHmKGA/ZJ82qYCcw
TLSH	T1E3973015B645CD8AF062957898978FE49322ECB0CB7193A732A57B0D2FFE2CC8DB1115
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	a2838983a27464b4 (15 x ValleyRAT, 1 x Nitol)
Reporter	Ling
Tags:	exe SilverFox Trojan/SilverFox.bm[lddel] ValleyRAT

CNGaoLing

install_a.8.15.exe

Trojan/SilverFox.bm[lddel]
IOC (nuppeg.net) (zz9jy8.oss-cn-beijing.aliyuncs.com) (mm2027.oss-cn-hangzhou.aliyuncs.com) (new2027.oss-cn-hongkong.aliyuncs.com)

Intelligence

File Origin

# of uploads :

# of downloads :

162

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

exe

Verdict:

No threats detected

Analysis date:

2026-09-18 17:11:08 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/430e7064-6a64-4d4d-a11c-cefdfd664c9b

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Creating a file

Enabling the 'hidden' option for recently created files

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context anti-debug fingerprint keylogger microsoft_visual_cc overlay packed packed

Link:

https://www.filescan.io/uploads/6aad5f25ffcd7d294a707303/reports/615bfe25-7d22-4617-8f1c-37ff588e0672/overview

Verdict:

Malicious

Labled as:

Tedy.Generic

Link:

https://www.hybrid-analysis.com/sample/c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-09-18T12:16:00Z UTC

Last seen:

2026-09-18T14:42:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan-Dropper.Win32.Generic

Link:

https://opentip.kaspersky.com/c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb/results?tab=lookup

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb

Gathering data

Threat name:

Win64.Trojan.AdvML

Status:

Malicious

First seen:

2026-09-18 15:57:24 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

19 of 38 (50.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zg44ed6x55nitdn47zznx7ym72wtmdhwrzq5kvuawul6mkmm5lnq._file

Result

Malware family:

n/a

Score:

10/10

Tags:

defense_evasion execution persistence trojan

Link:

https://tria.ge/reports/260918-tdhklsxgqc/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Executes a command shell one-liner

Drops file in System32 directory

Adds Run key to start application

Indicator Removal: Clear Persistence

Executes dropped EXE

Loads dropped DLL

Command and Scripting Interpreter: PowerShell

Windows security bypass

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/c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb

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:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	dependsonpythonailib Create hunting rule
Author:	Tim Brown
Description:	Hunts for dependencies on Python AI libraries

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

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:	Indicator_MiniDumpWriteDump Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references

Rule name:	INDICATOR_SUSPICIOUS_EXE_SandboxUserNames Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing possible sandbox analysis VM usernames

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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:	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:	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

File information

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

Web download

ValleyRAT

exe c9b9c20fd7ef5a898dbcfe72dbff0cfead360cf68e61d55680b517e6298ceadb

(this sample)

Delivery method

Distributed via web download

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