MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46. 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: 17

Intelligence 17 IOCs 1 YARA 10 File information Comments

SHA256 hash:	e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46
SHA3-384 hash:	64d765b3a7afe2bd9659b302c70b90db8c3557524b4a2f33ec2af0bc763cc43e8f4f10d5ed4a5f41be11589c3f306c39
SHA1 hash:	6056feb12d39a63023d093896c924a92aa529345
MD5 hash:	30f251b896956517a99d9675e0153078
humanhash:	xray-table-table-iowa
File name:	HiddenLoaders.exe
Download:	download sample
Signature	ValleyRAT Create hunting rule
File size:	304'771 bytes
First seen:	2026-04-14 20:50:55 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	08e7a7a545245c46c9640166cab94d3e (1 x ValleyRAT)
ssdeep	6144:/Ve8RDKLJDx1Y9wpe8oFsQ59FoEQSczsSojTr:gWDKtDrYSYFJKEQyjX
TLSH	T1CE546B65E3E31CFFF8A3B1344859864199B6F40343B0C67EFF6043299E13659992AB63
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
Reporter	aachum
Tags:	137-220-140-38 CHN exe uulai789-com ValleyRAT winos

iamaachum

https://kuaiholian.com.cn/ => https://yangyangoss8.oss-cn-hongkong.aliyuncs.com/Letslat2.5.zip

ValleyRAT/Winos C2: 137.220.140.38:9000
Unknown malware C2: https://uulai789.com/sd

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
137.220.140.38:9000	https://threatfox.abuse.ch/ioc/1791140/

Intelligence

File Origin

# of uploads :

# of downloads :

144

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

HiddenLoaders.exe

Verdict:

Malicious activity

Analysis date:

2026-04-14 20:41:18 UTC

Tags:

auto-startup auto-reg valleyrat rat silverfox winos

Link:

https://app.any.run/tasks/779ededd-9d36-4900-a1e7-811f87a4a274

Note:

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

Detection:

WinosStager

Link:

https://www.capesandbox.com/analysis/61604/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69dea66df68adfe10039da88

Tags:

autorun emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Connection attempt

Sending a custom TCP request

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug anti-vm explorer lolbin microsoft_visual_cc overlay packed packed

Link:

https://www.filescan.io/uploads/69dea8d8d920e19044fbda50/reports/20c6130b-21af-4878-88ae-5a77ec279a9b/overview

Verdict:

Malicious

Labled as:

Cerbu.Generic

Link:

https://www.hybrid-analysis.com/sample/e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-04-13T15:47:00Z UTC

Last seen:

2026-04-16T04:44:00Z UTC

Hits:

~100

Detections:

Backdoor.Agent.TCP.C&C Backdoor.Win32.Agentb.sb Trojan-PSW.Win32.Pycoon.sb Trojan.Win32.Inject.sb Trojan.Win32.Agent.sb Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Injector.sb Backdoor.Win32.Xkcp.clv Backdoor.Win32.Xkcp.a Backdoor.Win32.Androm.sb VHO:Backdoor.Win32.Convagent.gen PDM:Trojan.Win32.Generic

Link:

https://opentip.kaspersky.com/e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46/results?tab=lookup

Malware family:

ValleyRAT

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/696dee66-16c9-43fa-aae4-f26e43881ea1

Result

Threat name:

ValleyRAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1898343

Signature

Allocates memory in foreign processes

C2 URLs / IPs found in malware configuration

Contains functionality to capture and log keystrokes

Contains functionality to check for running processes (XOR)

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Contains functionality to determine the online IP of the system

Contains functionality to inject code into remote processes

Contains functionality to inject threads in other processes

Creates a thread in another existing process (thread injection)

Found malware configuration

Injects a PE file into a foreign processes

Injects code into the Windows Explorer (explorer.exe)

Joe Sandbox ML detected suspicious sample

Multi AV Scanner detection for submitted file

PE file has a writeable .text section

Query firmware table information (likely to detect VMs)

Suricata IDS alerts for network traffic

System process connects to network (likely due to code injection or exploit)

Unusual module load detection (module proxying)

Writes to foreign memory regions

Yara detected ValleyRAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46/

Verdict:

Malicious

Threat:

Family.VALLEYRAT

Link:

https://tip.neiki.dev/file/e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46

Threat name:

Win64.Trojan.Cerbu

Status:

Malicious

First seen:

2026-04-14 20:41:22 UTC

File Type:

PE+ (Exe)

AV detection:

23 of 38 (60.53%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=4qsbrklfsjdtuitutmkoarzmrikf4jhfhdyykh2q4htjpsgu7rda._file

Verdict:

malicious

Label(s):

valleyrat

Similar samples:

error

ValleyRAT

Result

Malware family:

valleyrat_s2

Score:

10/10

Tags:

family:valleyrat_s2 backdoor persistence ransomware

Link:

https://tria.ge/reports/260414-znf3esbv5j/

Behaviour

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Uses Volume Shadow Copy WMI provider

Uses Volume Shadow Copy service COM API

Checks SCSI registry key(s)

Enumerates system info in registry

Modifies data under HKEY_USERS

Enumerates physical storage devices

Adds Run key to start application

Enumerates connected drives

Drops startup file

Boot or Logon Autostart Execution: Active Setup

Detects ValleyRAT payload

Family: ValleyRat

Malware Config

C2 Extraction:

137.220.140.38:9000

Unpacked files

SH256 hash:

e42418a96592473a22749b14e0472c8a145e24e538f1851f50e1e697c8d4fc46

MD5 hash:

30f251b896956517a99d9675e0153078

SHA1 hash:

6056feb12d39a63023d093896c924a92aa529345

Link:

https://www.unpac.me/results/ba76395f-b532-48ac-9835-303a90fe90b1/

SH256 hash:

48a04171705e044194cb1947ee123af014d812b985d429c8a37e0749eadf67ff

MD5 hash:

ef26b3f509eec744459f9c36f5540a57

SHA1 hash:

0f210586c833d8e2ae733951be0a28649b4e30df

Link:

https://www.unpac.me/results/ba76395f-b532-48ac-9835-303a90fe90b1/

Malware family:

ValleyRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/e42418a96592/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:	Check_Debugger Create hunting rule

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

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

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

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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.