MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147. 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 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147
SHA3-384 hash: 0dea46bd74287fe10a34c213e6238e3bd6cdd50710359494c0645224a0cbd10fa5fdac87a6a1aab4a075eff4eac4b91a
SHA1 hash: 8472cfd70946968575dcbc9c42c6b6e2fa4e25e7
MD5 hash: 744939195531cadb69e84fe94aae9eec
humanhash: lactose-summer-grey-seven
File name:Purchase Order.vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:802'853 bytes
First seen:2025-10-22 12:08:39 UTC
Last seen:Never
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12288:kEY2r0HjkeyPmiapXhMetxii+ZB/dihXNZKBb1enzccaAQs1JrUJJ8S3EyxdwSg1:kdfMAxDO5shXNkXeiG+Nt1XMh
TLSH T1B305F13E9AA8DDC7CFEE7DFE50A61A400254867389F03A688C4C57DB1A1B24FD716364
Magika vba
Reporter abuse_ch
Tags:RAT RemcosRAT vbs

Intelligence

File Origin
# of uploads :
1
# of downloads :
61
Origin country :
SE SE
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33730/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f8c9843edd081eba40b2a9
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Labled as:
VBS/TrojanDropper.Agent
Link:
https://www.hybrid-analysis.com/sample/3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147
Verdict:
Malicious
File Type:
vbs
First seen:
2025-10-21T20:03:00Z UTC
Last seen:
2025-10-24T10:09:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1799760
Signature
.NET source code contains a sample name check
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
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
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1799760 Sample: Purchase Order.vbs Startdate: 22/10/2025 Architecture: WINDOWS Score: 100 32 oobinnnasdfgghjkll.ydns.eu 2->32 36 Suricata IDS alerts for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 14 other signatures 2->42 10 wscript.exe 1 2->10         started        signatures3 process4 file5 30 C:\Users\Public\ShedDistrict.bat, ASCII 10->30 dropped 52 Wscript starts Powershell (via cmd or directly) 10->52 54 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->54 56 Suspicious execution chain found 10->56 58 Creates processes via WMI 10->58 14 cmd.exe 1 10->14         started        signatures6 process7 signatures8 60 Suspicious powershell command line found 14->60 62 Wscript starts Powershell (via cmd or directly) 14->62 17 cmd.exe 1 14->17         started        19 conhost.exe 14->19         started        process9 process10 21 cmd.exe 2 17->21         started        signatures11 44 Suspicious powershell command line found 21->44 46 Wscript starts Powershell (via cmd or directly) 21->46 24 powershell.exe 5 28 21->24         started        28 conhost.exe 21->28         started        process12 dnsIp13 34 oobinnnasdfgghjkll.ydns.eu 103.125.189.101, 2558, 49689 VNPT-AS-VNVIETNAMPOSTSANDTELECOMMUNICATIONSGROUPVN Viet Nam 24->34 48 Found suspicious powershell code related to unpacking or dynamic code loading 24->48 50 Loading BitLocker PowerShell Module 24->50 signatures14
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147
Verdict:
Malware
YARA:
2 match(es)
Tags:
Base64 Block Contains Base64 Block DeObfuscated PowerShell Scripting.FileSystemObject VBScript
Link:
https://app.malva.re/file/744939195531cadb69e84fe94aae9eec
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147/
Threat name:
Script-WScript.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-10-22 02:53:26 UTC
File Type:
Text
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hrefbowz4scfhgliox3wojnljsxrrbqt5rdcd7xx7pfc7um4efdq._file
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader discovery execution loader
Link:
https://tria.ge/reports/251022-pbry2sem6s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Command and Scripting Interpreter: PowerShell
Badlisted process makes network request
Detects DonutLoader
DonutLoader
Donutloader family
Process spawned unexpected child process
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3c4850bad9e4/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/3c4850bad9e48453996875f76725ab4caf188613ec4621fef7fbca2fd19c2147

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_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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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: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/33730/

Comments