MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d. 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: 12

Intelligence 12 IOCs YARA 26 File information Comments

SHA256 hash:	c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d
SHA3-384 hash:	276b05171db726b451f1739fc4916eef8b39f01be3d8da5164baccafd92a0f5ce948f849e5a8abc01de9f6e07b70eb04
SHA1 hash:	1f61163784b16b391bff874349cf5fe115b2b01d
MD5 hash:	6382ad4c07f225406139f7ab90f2ccaf
humanhash:	cola-delta-violet-princess
File name:	aloudnst65831013.exe
Download:	download sample
Signature	ValleyRAT Create hunting rule
File size:	72'061'952 bytes
First seen:	2026-06-14 20:38:12 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	a5396d0e3a0b90f35cda230c0314ce27 (8 x ValleyRAT)
ssdeep	196608:RJ4lg1EY/XauYlbwU1cqqu2iAKIxEAOp4fUHlggHpRvxXvpCaZf/IxfMr75:b4Qpa1cNCpRpXhJa0
TLSH	T141F7E85FBB02CDC2F546D234985687E42377EDB58AA18343329C7B157FBE1888EE2194
TrID	68.6% (.EXE) InstallShield setup (43053/19/16) 10.4% (.EXE) Win64 Executable (generic) (6522/11/2) 8.0% (.EXE) Win16 NE executable (generic) (5038/12/1) 3.2% (.ICL) Windows Icons Library (generic) (2059/9) 3.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
dhash icon	818da080a0a0a0a2 (137 x Heodo, 46 x Urelas, 30 x ValleyRAT)
Reporter	Ling
Tags:	exe SilverFox Trojan/SilverFox.bm[lddel] ValleyRAT

CNGaoLing

Trojan/SilverFox.bm[lddel]
IOC (Domain wtkblq.com) (Domain 26nn.oss-cn-hangzhou.aliyuncs.com) (Domain c61for.oss-cn-beijing.aliyuncs.com)

Intelligence

File Origin

# of uploads :

# of downloads :

192

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

gh0st

ID:

File name:

aloudnst65831013.exe

Verdict:

Malicious activity

Analysis date:

2026-06-14 20:35:45 UTC

Tags:

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

Link:

https://app.any.run/tasks/b4a335be-84c7-432f-bb0e-c973566ef62c

Note:

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

Verdict:

Malicious

Score:

93.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a2f107734eaf30d8ce62360

Tags:

shellcode cobalt small blic

Result

Verdict:

Clean

Maliciousness:

Behaviour

Connection attempt

Сreating synchronization primitives

DNS request

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug anti-vm fingerprint installer-heuristic keylogger microsoft_visual_cc

Link:

https://www.filescan.io/uploads/6a2f114f1f652d68657f3e42/reports/3e3e73b6-d83c-4927-b253-e5512ea5e441/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-06-14T17:27:00Z UTC

Last seen:

2026-06-15T22:50:00Z UTC

Hits:

~1000

Detections:

Trojan.Win32.EtwTamper.brt Trojan.Win32.Agent.sba Trojan.Agent.HTTP.C&C HackTool.Multi.AmsiETWPatch.sb

Link:

https://opentip.kaspersky.com/c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d/results?tab=lookup

Score:

86%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d

Gathering data

Verdict:

Malicious

Threat:

HackTool.Win32.AmsiETWPatch

Link:

https://tip.neiki.dev/file/c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d

Threat name:

Win64.Trojan.Malgent

Status:

Malicious

First seen:

2026-06-14 20:35:42 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=yhlxwa5c2v7u56lhbj2wtj33myqznsyqy5hdaoqemjvpysp47mgq._file

Result

Malware family:

n/a

Score:

10/10

Tags:

defense_evasion execution persistence trojan

Link:

https://tria.ge/reports/260614-ze29ashv4m/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: LoadsDriver

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Enumerates physical storage devices

Drops file in Program Files directory

Drops file in System32 directory

Adds Run key to start application

Indicator Removal: Clear Persistence

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Windows security bypass

Malware family:

CobaltStrike

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c1d77b03a2d5/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:	Detect_PowerShell_Obfuscation Create hunting rule
Author:	daniyyell
Description:	Detects obfuscated PowerShell commands commonly used in malicious scripts.

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

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_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:	NET Create hunting rule
Author:	malware-lu

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:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	Rooter Create hunting rule
Author:	Seth Hardy
Description:	Rooter

Rule name:	RooterStrings Create hunting rule
Author:	Seth Hardy
Description:	Rooter Identifying Strings

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:	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 c1d77b03a2d57f4ef9670a7569a77b662196cb10c74e303a04626afc49fcfb0d

(this sample)

Delivery method

Distributed via web download

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