MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37. 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: 18

Intelligence 18 IOCs 1 YARA 13 File information Comments

SHA256 hash:	21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37
SHA3-384 hash:	8549915c00881041e261de0c716cc9a4f40e621568646133b8fa31a67b48ffaf7c1fb0d919df01f07cf0f91f99a22bf5
SHA1 hash:	15cea6ac7ea9ce5b9e7a3cf2ad4f7720ac8aab08
MD5 hash:	7bb08cc2412f96c870bc4621eb21aaf7
humanhash:	earth-lake-crazy-zebra
File name:	7BB08CC2412F96C870BC4621EB21AAF7.exe
Download:	download sample
Signature	ValleyRAT Create hunting rule
File size:	111'104 bytes
First seen:	2025-05-23 02:05:14 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	b8bf08fa843a9ec1ce10d80fbf550c26 (87 x ValleyRAT, 1 x Gh0stRAT)
ssdeep	3072:ybWjdIPbcia0NFtwwnILn3py6D268XEPKD2:ybWjMbcCtwwnchx1y
TLSH	T139B37B2172A0C072D093253199F9EBB24E7EF93117B845CBB7E406BA5F603C16A7539B
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	abuse_ch
Tags:	exe RAT ValleyRAT

abuse_ch

ValleyRAT C2:
23.249.28.223:8223

Indicators Of Compromise (IOCs)

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

IOC	ThreatFox Reference
23.249.28.223:8223	https://threatfox.abuse.ch/ioc/1532366/

Intelligence

File Origin

# of uploads :

# of downloads :

676

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

7BB08CC2412F96C870BC4621EB21AAF7.exe

Verdict:

Malicious activity

Analysis date:

2025-05-23 02:08:50 UTC

Tags:

valleyrat winos rat silverfox

Link:

https://app.any.run/tasks/2ddc5338-ef1e-4532-8c39-15ce5decbbf5

Note:

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

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=682fd89ac28c67d666449cc2

Tags:

emotet farfli

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Connection attempt

Sending a custom TCP request

Сreating synchronization primitives

Creating a window

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm crypt farfli microsoft_visual_cc xpack

Link:

https://www.filescan.io/uploads/682fd7fbfd02ed5e0583a5f5/reports/469d9378-304a-4648-a2cd-25fad4fd6c13/overview

Verdict:

Malicious

Labled as:

Midie.Generic

Link:

https://www.hybrid-analysis.com/sample/21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37

Malware family:

Winos

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/afda571e-861e-4d1f-b1a6-611ee017020b

Result

Threat name:

GhostRat, ValleyRAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1697401

Signature

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Contains functionality to capture and log keystrokes

Contains functionality to inject code into remote processes

Contains functionality to inject threads in other processes

Detected unpacking (creates a PE file in dynamic memory)

Found malware configuration

Multi AV Scanner detection for submitted file

Suricata IDS alerts for network traffic

Yara detected GhostRat

Yara detected ValleyRAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37/

Verdict:

Malicious

Link:

https://tip.neiki.dev/file/21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37

Threat name:

Win32.Trojan.FatalRAT

Status:

Malicious

First seen:

2025-05-20 13:22:00 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

28 of 35 (80.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=egbrzq7nthbpzx3da4rsgvytrkgw5nby2qt22hcl2nmoa5sb3y3q._file

Verdict:

malicious

Label(s):

winos

Similar samples:

error

ValleyRAT

Result

Malware family:

valleyrat_s2

Score:

10/10

Tags:

family:valleyrat_s2 discovery

Link:

https://tria.ge/reports/250523-ch3ynsgk8y/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

System Location Discovery: System Language Discovery

Enumerates connected drives

Malware Config

C2 Extraction:

23.249.28.223:8223
23.249.28.223:8224
23.249.28.223:8225

Verdict:

Malicious

Tags:

Win.Malware.Fragtor-10028386-0

YARA:

n/a

Link:

https://app.threat.zone/submission/2381a80d-e7e3-4f82-a436-f4a931f30e1b

Unpacked files

SH256 hash:

21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37

MD5 hash:

7bb08cc2412f96c870bc4621eb21aaf7

SHA1 hash:

15cea6ac7ea9ce5b9e7a3cf2ad4f7720ac8aab08

Detections:

win_valley_rat_auto

Link:

https://www.unpac.me/results/a34e3747-fd43-4563-9c76-d9fc0e3fe845/

Malware family:

ValleyRAT

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/21831cc3ed99/report/overview.html

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/21831cc3ed99c2fcdf6307232357138a8d6eb438d427ad1c4bd358e07641de37

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:	CAS_Malware_Hunting Create hunting rule
Author:	Michael Reinprecht
Description:	DEMO CAS YARA Rules for sample2.exe

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

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

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

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

Rule name:	meth_peb_parsing Create hunting rule
Author:	Willi Ballenthin

Rule name:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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

Rule name:	ValleyRAT Create hunting rule
Author:	NDA0E
Description:	Detects ValleyRAT

Rule name:	Windows_Generic_Threat_4b0b73ce Create hunting rule
Author:	Elastic Security

Rule name:	win_valley_rat_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.valley_rat.

File information

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

No further information available

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Reviews

ID	Capabilities	Evidence
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::timeGetTime
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess KERNEL32.dll::VirtualAllocEx KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleWindow KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileW KERNEL32.dll::GetSystemDirectoryA KERNEL32.dll::GetFileAttributesA
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_SOCK_API	Uses Network to send and receive data	WS2_32.dll::WSACloseEvent WS2_32.dll::WSACreateEvent WS2_32.dll::WSAEnumNetworkEvents WS2_32.dll::WSAEventSelect WS2_32.dll::WSAIoctl WS2_32.dll::WSAResetEvent
WIN_USER_API	Performs GUI Actions	USER32.dll::PeekMessageW

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