MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5. 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

RemcosRAT

Vendor detections: 13

Intelligence 13 IOCs YARA 30 File information Comments

SHA256 hash:	04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5
SHA3-384 hash:	6c800a2c98eb0e91ff4a37267c227469750c92767415ec79a776fb2d90c1e23628a22df4af77483de368272106710c48
SHA1 hash:	6a9a2d682329a89de0b7034fa6772a086fc1bf1c
MD5 hash:	faf093ebbcef7f49c8838536f6ebd226
humanhash:	solar-echo-floor-sad
File name:	HSBC.BANK.Payment.Copy.pdf.bat
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	1'600'370 bytes
First seen:	2025-07-31 07:21:55 UTC
Last seen:	Never
File type:	bat
MIME type:	text/plain
ssdeep	24576:qllIqc8E1wbE3QE4MbRqmcjPANcTrXmjb6+MkyLpPKPT+Zxr8kdVI2rNZ9EJW+5E:5qWIEM9AK0b6+YLpC2HSN5F2
Threatray	4'120 similar samples on MalwareBazaar
TLSH	T1E97533251E3A6D9D0BB8807C213F9A6BDBD58FD29DA5E5DB5270388E050FF50C82788D
Magika	batch
Reporter	abuse_ch
Tags:	124-198-131-57 bat HSBC RAT RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

HSBC.BANK.Payment.Copy.pdf.bat

Verdict:

Malicious activity

Analysis date:

2025-07-31 07:22:51 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/2619b20d-1e9d-4232-a7c4-5d7e78d16569

Note:

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

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/17929/

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=688b19abaf3050dc8d32a124

Tags:

shell spawn sage

Verdict:

Malicious

Labled as:

TrojanDropper/BAT.Agent

Link:

https://www.hybrid-analysis.com/sample/04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5

Result

Threat name:

Remcos, PureLog Stealer, ResolverRAT

Detection:

malicious

Classification:

rans.phis.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1747620

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

C2 URLs / IPs found in malware configuration

Contains functionality to inject code into remote processes

Contains functionality to register a low level keyboard hook

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Contains functionalty to change the wallpaper

Delayed program exit found

Detected Remcos RAT

Found large BAT file

Found malware configuration

Injects a PE file into a foreign processes

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for submitted file

Powershell is started from unusual location (likely to bypass HIPS)

Reads the Security eventlog

Reads the System eventlog

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: Remcos

Sigma detected: Script Interpreter Execution From Suspicious Folder

Sigma detected: Suspicious Script Execution From Temp Folder

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Instant Messenger accounts or passwords

Tries to steal Mail credentials (via file / registry access)

Tries to steal Mail credentials (via file registry)

Uses attrib.exe to hide files

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected Costura Assembly Loader

Yara detected PureLog Stealer

Yara detected Remcos RAT

Yara detected ResolverRAT

Yara detected WebBrowserPassView password recovery tool

Behaviour

Behavior Graph:

Download SVG

Score:

94%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5/

Verdict:

Malicious

Threat:

Backdoor.Win32.Remcos

Link:

https://tip.neiki.dev/file/04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5

Threat name:

Script-BAT.Backdoor.Remcos

Status:

Malicious

First seen:

2025-07-31 05:35:43 UTC

File Type:

Text (PowerShell)

AV detection:

9 of 24 (37.50%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=atz7tdocfyh25nhp43lqpawac2ch46ngfwyhbak65jbxl72yp3sq._file

Verdict:

malicious

Label(s):

purecrypter

remcos

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:remotehost collection defense_evasion discovery rat

Link:

https://tria.ge/reports/250731-h7dmzadl9s/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Views/modifies file attributes

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Executes dropped EXE

Sets file to hidden

Detected Nirsoft tools

NirSoft WebBrowserPassView

Remcos

Remcos family

Malware Config

C2 Extraction:

124.198.131.57:9792

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/04f3f98dc22e0faeb4efe6d70782c016847e79a62db070815eea4375ff587ee5

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:	BlackGuard_Rule Create hunting rule
Author:	Jiho Kim
Description:	Yara rule for BlackGuarad Stealer v1.0 - v3.0
Reference:	https://www.virustotal.com/gui/file/67843d45ba538eca29c63c3259d697f7e2ba84a3da941295b9207cdb01c85b71/detection

Rule name:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

Rule name:	botnet_plaintext_c2 Create hunting rule
Author:	cip
Description:	Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.

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

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

Rule name:	iexplorer_remcos Create hunting rule
Author:	iam-py-test
Description:	Detect iexplorer being taken over by Remcos

Rule name:	INDICATOR_EXE_Packed_MPress Create hunting rule
Author:	ditekSHen
Description:	Detects executables built or packed with MPress PE compressor

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer Create hunting rule
Author:	ditekSHen
Description:	detects Windows exceutables potentially bypassing UAC using eventvwr.exe

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

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	nirsoft_v1 Create hunting rule
Author:	RandomMalware

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	Remcos Create hunting rule
Author:	kevoreilly
Description:	Remcos Payload

Rule name:	remcos_ Create hunting rule
Author:	Michelle Khalil
Description:	This rule detects unpacked remcos malware samples.

Rule name:	REMCOS_RAT_variants Create hunting rule

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:	TeslaCryptPackedMalware Create hunting rule

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

Rule name:	Windows_Trojan_Remcos_b296e965 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set

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

Rule name:	win_remcos_rat_unpacked Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	win_remcos_w0 Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	yarahub_win_remcos_rat_unpacked_aug_2023 Create hunting rule
Author:	Matthew @ Embee_Research

File information

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

Cape

https://www.capesandbox.com/analysis/17929/

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