MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958
SHA3-384 hash: 75eee15463f16808808242b85b2ed428734de61e3092f02e126fb1a9f18a68db82ea6f22c65bbe70e6c9bb377e976d86
SHA1 hash: 2b15ae38f818746e19a0ae7b3072d1d231389375
MD5 hash: 04f3215a4414b4405921c9b836f94c5e
humanhash: lake-west-four-july
File name:Banco.Santander.Cópia.de.Pagamento.pdf.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'285'338 bytes
First seen:2025-10-23 13:10:44 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 24576:MdGbRwuqo8uAnvJEEavhTCw+GNGP5/pJWJ2z3jNGKrTPezgwel8+P4rLBoDDAUoa:MSw3OphNQbNGFgwadP4r+RTUAQhtba
Threatray 1'658 similar samples on MalwareBazaar
TLSH T1E9B501631E14DD88338965293FAC3460D3E0EE7B6D7BD55052A3EBEE273AA450720B71
Magika txt
Reporter abuse_ch
Tags:RAT RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
SE SE
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33883/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68fa29613bdc93eb05637a3f
Tags:
shell virus sage
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade obfuscated
Link:
https://www.filescan.io/uploads/68fa296a11ff3db29f6711a5/reports/057efdc3-c4dc-4297-bb2f-1e9b63a2f1ce/overview
Verdict:
Malicious
Labled as:
VBS/Kryptik.LP trojan
Link:
https://www.hybrid-analysis.com/sample/3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958
Verdict:
Malicious
File Type:
vbs
First seen:
2025-10-23T06:10:00Z UTC
Last seen:
2025-10-24T16:57:00Z UTC
Hits:
~1000
Detections:
Trojan.JS.SAgent.sb BSS:Trojan.Win32.Generic HEUR:Trojan.Script.Generic
Link:
https://opentip.kaspersky.com/3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958/results?tab=lookup
Result
Threat name:
Remcos, PureLog Stealer, ResolverRAT
Create hunting rule
Detection:
malicious
Classification:
rans.phis.bank.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1800590
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Creates processes via WMI
Detected Remcos RAT
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Malicious encrypted Powershell command line found
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
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: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Double Extension Files
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
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)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected Remcos RAT
Yara detected ResolverRAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1800590 Sample: Banco.Santander.C#U00f3pia.... Startdate: 23/10/2025 Architecture: WINDOWS Score: 100 45 Suricata IDS alerts for network traffic 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 18 other signatures 2->51 8 wscript.exe 1 2->8         started        process3 signatures4 61 Malicious encrypted Powershell command line found 8->61 63 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->63 65 Creates processes via WMI 8->65 11 Banco.Santander.C#U00f3pia.de.Pagamento.pdf.vbs.exe 16 8->11         started        14 cmd.exe 2 8->14         started        process5 file6 73 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->73 75 Powershell is started from unusual location (likely to bypass HIPS) 11->75 77 Reads the Security eventlog 11->77 79 Reads the System eventlog 11->79 17 InstallUtil.exe 4 3 11->17         started        22 conhost.exe 11->22         started        41 Banco.Santander.C#...gamento.pdf.vbs.exe, PE32 14->41 dropped 24 conhost.exe 14->24         started        signatures7 process8 dnsIp9 43 91.92.241.175, 49692, 49693, 9385 THEZONEBG Bulgaria 17->43 35 C:\Users\user\AppData\Local\Temp\TH4BE2.tmp, MS-DOS 17->35 dropped 37 C:\Users\user\AppData\Local\Temp\TH4BC2.tmp, MS-DOS 17->37 dropped 39 C:\Users\user\AppData\Local\Temp\TH4B82.tmp, PE32 17->39 dropped 53 Contains functionality to bypass UAC (CMSTPLUA) 17->53 55 Detected Remcos RAT 17->55 57 Contains functionalty to change the wallpaper 17->57 59 6 other signatures 17->59 26 RmClient.exe 1 17->26         started        29 RmClient.exe 1 17->29         started        31 RmClient.exe 2 17->31         started        33 RmClient.exe 17->33         started        file10 signatures11 process12 signatures13 67 Tries to steal Instant Messenger accounts or passwords 26->67 69 Tries to steal Mail credentials (via file / registry access) 26->69 71 Tries to harvest and steal browser information (history, passwords, etc) 29->71
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958
Verdict:
Malware
YARA:
1 match(es)
Tags:
Batch Command DeObfuscated Obfuscated PowerShell PowerShell Call Scripting.FileSystemObject T1059.005 VBS Execute Sub-Script VBScript WScript.Shell
Link:
https://app.malva.re/file/04f3215a4414b4405921c9b836f94c5e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958/
Verdict:
Malicious
Threat:
Trojan.Win32.SAgent
Link:
https://tip.neiki.dev/file/3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958
Threat name:
Script-WScript.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2025-10-23 13:11:39 UTC
File Type:
Text (VBS)
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hp5owxg2vlgl7nxlyxckcwwfsa3wvbz7oz566s3p6fd2fmig7fma._file
Verdict:
malicious
Label(s):
purecrypter
Create hunting rule
remcos
Create hunting rule
Similar samples:
010a44b6660fcd4d8c0998014751db3570c10720696b9599bdfada471ce9e7b7
RemcosRAT
28aab36bc389948b4a145e2087ab28fe8deda466ac7f7a2d9217b42bd0774caf
RemcosRAT
4e3c3570d344cbd5cbe17694c8fcb740935539e2c8376ebb60f9fea6c6b30003
RemcosRAT
8090d733578327c6b42ba49b4dba0ac43fb8cbeffb0d565cbd6609b93e13dd5b
RemcosRAT
8ca7124e0d0abbebeb7089771abe45deb02ce6c49ad9ab3f6d6dc3b9cac09013
RemcosRAT
ab3b3296f0c1362788a03e256a24c7e6a38661c484cca9d281bf929521dd7c68
RemcosRAT
b54ff52b3729fd79f32b7ea4644a8d85380658ce987ac1eea45ca6f76cc6f8ab
RemcosRAT
error
RemcosRAT
+ 1'648 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
collection discovery
Link:
https://tria.ge/reports/251023-qes6ysdv7f/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
Process spawned unexpected child process
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/3bfaeb5cdaaaccbfb6ebc5c4a15ac590376a873f767bef4b6ff147a2b106f958

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: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:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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: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
Cape
https://www.capesandbox.com/analysis/33883/

Comments