MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227. 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: 14

Intelligence 14 IOCs YARA 25 File information Comments

SHA256 hash:	3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227
SHA3-384 hash:	e3077aca6a279091ad12588e3a2054dc0a2a759d40f76825ce46bec2960382618b9f1ab285cbac988e9d0baa7f243d4a
SHA1 hash:	412feef3d7050492f0f5661858f62ad679c0ba89
MD5 hash:	912ad352f568226da6d196c98e502ba9
humanhash:	yankee-pizza-vegan-east
File name:	SOA 26536-20250807-4756786752-pdf.vbs
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	839'183 bytes
First seen:	2025-08-08 06:01:11 UTC
Last seen:	Never
File type:	vbs
MIME type:	text/plain
ssdeep	24576:FcT/U94YXIpEqNz3C/PU+NeUuTcC3rdFtQBfxw:vq+TK/3CW
Threatray	4'109 similar samples on MalwareBazaar
TLSH	T19F05D03CCAB4ECC8A32E70D7265D3B11246D57ABB6735BACF5C448B55DA814F8B7A008
Magika	vba
Reporter	lowmal3
Tags:	RemcosRAT vbs

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/19576/

Detection(s):

SecuriteInfo.com.BAT.Obfus-5.UNOFFICIAL

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689592b91e8a59ee04e73967

Tags:

autorun lien

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

base64 evasive obfuscated powershell

Link:

https://www.filescan.io/uploads/689592ee397fd3ce6fa1cf0b/reports/969b8691-f5ff-4165-b667-90f28c2272ed/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227

Result

Threat name:

n/a

Detection:

malicious

Classification:

expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1752792

Signature

Creates processes via WMI

Found suspicious powershell code related to unpacking or dynamic code loading

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: PowerShell Base64 Encoded IEX Cmdlet

Sigma detected: WScript or CScript Dropper

Suspicious execution chain found

Suspicious powershell command line found

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Wscript starts Powershell (via cmd or directly)

Yara detected Powershell decode and execute

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227

Verdict:

Malware

YARA:

1 match(es)

Tags:

Scripting.FileSystemObject VBScript

Link:

https://app.malva.re/file/912ad352f568226da6d196c98e502ba9

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227/

Verdict:

Malicious

Threat:

Trojan-Downloader.JS.Cryptoload

Link:

https://tip.neiki.dev/file/3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2025-08-08 06:02:22 UTC

File Type:

Text

AV detection:

5 of 36 (13.89%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gwl22h3anmeo7f3q4owzm3sww5dh42its46m3ts62424nmowaitq._file

Verdict:

malicious

Label(s):

remcos

donut_injector

Result

Malware family:

donutloader

Score:

10/10

Tags:

family:donutloader collection discovery execution loader

Link:

https://tria.ge/reports/250808-gq4bmatr17/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Command and Scripting Interpreter: PowerShell

Drops startup file

Blocklisted process makes network request

Detected Nirsoft tools

NirSoft MailPassView

NirSoft WebBrowserPassView

Detects DonutLoader

DonutLoader

Donutloader family

Process spawned unexpected child process

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3597ad1f606b/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/3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227

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:	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:	ClamAV_Emotet_String_Aggregate Create hunting rule

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

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

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:	SUSP_PS1_JAB_Pattern_Jun22_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects suspicious UTF16 and Base64 encoded PowerShell code that starts with a $ sign and a single char variable
Reference:	Internal Research

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:	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:	Warp Create hunting rule
Author:	Seth Hardy
Description:	Warp

Rule name:	WarpStrings Create hunting rule
Author:	Seth Hardy
Description:	Warp Identifying Strings

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.

Malspam

RemcosRAT

vbs 3597ad1f606b08ef9770e3ad966e56b7467e6913973ccdce5ed735c6b1d60227

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/19576/

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample