MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c. 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 24 File information Comments

SHA256 hash:	4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c
SHA3-384 hash:	ff3f9467a91055cd2962e89fd413d6001cc8c371169e0527149483b9cfba339baa7acc9551ebb09c89e7188a2762c48b
SHA1 hash:	bb730b06d61f204b2c9207375497eb3371ec10d5
MD5 hash:	0efd26319507e9f1d1817a3abf9b5a5a
humanhash:	eleven-london-bakerloo-six
File name:	Vorrangige_Angebotsanfrage_-_Laufendes_Projekt_HFS_Vertriebs_und_Produktionsgesellschaft_mbH_25_08_2026.bat
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	1'060'788 bytes
First seen:	2026-10-14 15:08:08 UTC
Last seen:	Never
File type:	bat
MIME type:	text/x-msdos-batch
ssdeep	24576:fwKzuTde7etysthfx+yaOgMRjFpJv/vEN7bYN22b:ge6tJvjJvkOII
TLSH	T13A35234235386F5D0DB0232E554744983BC9ADD197A2FCDDBCABB1E3118AF63C86A187
Magika	batch
Reporter	TomU
Tags:	bat RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

bat

Verdict:

Malicious activity

Analysis date:

2026-10-14 15:10:38 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/6f7cd0ce-e82b-4a1c-bce0-3036790a1d38

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/91815/

Detection(s):

SecuriteInfo.com.Other.Malware-gen.82269647.UNOFFICIAL

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad1439b6f551121ba16560d

Tags:

crypted emotet remo sage

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a process

Creating synchronization primitives

Sending a custom TCP request

Creating a file in the %temp% subdirectories

Creating a process with a hidden window

Creating a file

Deleting a recently created file

Creating a window

Searching for the window

Connection attempt to an infection source

Launching a service

Forced shutdown of a system process

Query of malicious DNS domain

Sending a TCP request to an infection source

Unauthorized injection to a system process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

obfuscated powershell

Link:

https://www.filescan.io/uploads/6acf9ae93467caad9948ad37/reports/92639443-28b7-4b42-8671-8cbdfe7e59e3/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-08-25T10:12:00Z UTC

Last seen:

2026-10-16T09:58:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c/results?tab=lookup

Score:

97%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c/

Threat name:

Script-BAT.Packed.Generic

Status:

Suspicious

First seen:

2026-08-25 14:31:39 UTC

File Type:

Text (Batch)

AV detection:

13 of 36 (36.11%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jtvi7isyda64xct5ij3csg4abxt42ubapqttyldykunp5wy73eoa._file

Verdict:

malicious

Label(s):

Remcos

Link:

https://reports.threatray.com/a800761c-8fcf-4e88-a282-5a54e0dec137

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:buffalo defense_evasion execution privilege_escalation rat suricata

Link:

https://tria.ge/reports/261014-sh1rbatw7k/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: PowerShell

Executes a command shell one-liner

Suspicious use of SetThreadContext

Family: Remcos

Suricata alert: REMCOS RAT Malware Outbound C2 Communication

Malware Config

C2 Extraction:

buffalobr.duckdns.org:51842
buffalobrbk.duckdns.org:50810

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/4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c

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

Rule name:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

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

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM Create hunting rule
Author:	ditekSHen
Description:	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	Remcos_unpacked_PulseIntel Create hunting rule
Author:	PulseIntel
Description:	Remcos Payload

Rule name:	SUSP_Script_PowerShell_Hidden_Launcher Create hunting rule
Author:	Marjoriefort
Description:	Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:	Veille fraicheur 2026-09-14 / cluster misses web

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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

Rule name:	TigerRAT_pe_yaraify Create hunting rule
Author:	hunts-yara-code
Description:	YARAify-tightened byte rule from 9 sample(s) -- VERIFY hits

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.

Rule name:	Windows_Trojan_Remcos_921ef449 Create hunting rule
Author:	Elastic Security

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_Clipboard_Clipper_Thengavar Create hunting rule
Author:	Thengavar
Description:	Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_74566f98 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_79234c04 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

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.

Malspam

RemcosRAT

bat 4cea8fa258183dcb8a7d4276291b800de7cd50207c273c2c78551afedb1fd91c

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/91815/

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