MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276. 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 23 File information Comments

SHA256 hash:	4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276
SHA3-384 hash:	b524ff22ee0c6768b83167a73f3adc0f645c8eff6227b202cf290051e40cf9f58be02e713ac5ccac6cbd83c735830885
SHA1 hash:	723071172527495df31c56f04b45dbd51ae7dcce
MD5 hash:	43880aea9ab3861c796d6016bcc6f7d5
humanhash:	lamp-nitrogen-alaska-victor
File name:	zinst86635862001.exe
Download:	download sample
Signature	ValleyRAT Create hunting rule
File size:	75'137'968 bytes
First seen:	2026-06-04 17:38:41 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e611cb40dae30a74fa3f15a0e816a66a (9 x ValleyRAT, 1 x Nitol)
ssdeep	196608:Pd/Rsi4kq2QB9+L2Dhb6Z/LzEnSQ5Ps6EgcA6Z6OTXR6Rn82C1gYHJgIt:lRpQBhDO4y8RAvjt
TLSH	T1CDF7954ABB11CD93E4159239D89B8BE03372ECB48BA6930333587B3D7EBB2944DD1594
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 (9 x ValleyRAT, 1 x Nitol)
Reporter	Ling
Tags:	exe SilverFox Trojan/SilverFox.bm[lddel] ValleyRAT

CNGaoLing

Trojan/SilverFox.bm[lddel]
IOC (jnkous.net) (26nn.oss-cn-hangzhou.aliyuncs.com) (z6ywy4.oss-cn-beijing.aliyuncs.com)

Intelligence

File Origin

# of uploads :

# of downloads :

138

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

gh0st

ID:

File name:

zinst86635862001.exe

Verdict:

Malicious activity

Analysis date:

2026-06-04 17:35:56 UTC

Tags:

payload remote rat gh0st stego auto-reg auto-sch uac

Link:

https://app.any.run/tasks/614dad98-6ed7-41f1-abf7-1bfb68c4cc83

Note:

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

Verdict:

Malicious

Score:

98.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a21b754f8676ad4d3611593

Tags:

shellcode cobalt virus blic

Result

Verdict:

Clean

Maliciousness:

Behaviour

Launching a service

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

adaptive-context anti-debug anti-vm fingerprint installer-heuristic invalid-signature keylogger microsoft_visual_cc overlay packed packed signed

Link:

https://www.filescan.io/uploads/6a21b84812da0d249c6522ef/reports/38dfe055-33e6-4ce5-92bf-4fe145021252/overview

Verdict:

Malicious

Labled as:

Capa_reference_analysis_tools_strings

Link:

https://www.hybrid-analysis.com/sample/4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276

Verdict:

Clean

File Type:

exe x64

Link:

https://opentip.kaspersky.com/4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276/results?tab=lookup

Score:

86%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276

Gathering data

Verdict:

Clean

Link:

https://tip.neiki.dev/file/4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276

Threat name:

Win64.Trojan.Generic

Status:

Suspicious

First seen:

2026-06-04 17:35:09 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

7 of 36 (19.44%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=iftoejw7gxmkohrluwaebdbfmtwmmxpiqe3zholcybc3xabvoj3a._file

Result

Malware family:

plusdrop

Score:

10/10

Tags:

family:plusdrop actor:apt41 apt backdoor defense_evasion discovery execution exploit persistence privilege_escalation trojan upx

Link:

https://tria.ge/reports/260604-v8fvyab13n/

Behaviour

Checks processor information in registry

Modifies Control Panel

Modifies registry class

Runs net.exe

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

System policy modification

Uses Task Scheduler COM API

Enumerates physical storage devices

Event Triggered Execution: Screensaver

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Launches sc.exe

Drops file in System32 directory

UPX packed file

Adds Run key to start application

Indicator Removal: Clear Persistence

Checks computer location settings

Disables service(s)

Executes dropped EXE

Loads dropped DLL

Modifies file permissions

Command and Scripting Interpreter: PowerShell

Drops file in Drivers directory

Modifies RDP port number used by Windows

Possible privilege escalation attempt

Detects Plusdrop Payload

Family: Plusdrop, toughprogress

UAC bypass

Windows security bypass

Malware family:

CobaltStrike

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4166e226df35/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

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

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:	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:	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:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

Rule name:	WHIRLPOOL_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for WhirlPool constants

File information

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

Web download

ValleyRAT

exe 4166e226df35d8a71e2ba580408c2564ecc65de8813793b962c045bb80357276

(this sample)

Delivery method

Distributed via web download

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