MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 37f29dc9c4be3882314edf6c663e77ef711a719ed7b5d4256ed2423cfbc0ca61. 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: 15
| SHA256 hash: | 37f29dc9c4be3882314edf6c663e77ef711a719ed7b5d4256ed2423cfbc0ca61 |
|---|---|
| SHA3-384 hash: | 8fd112264cf9087426f05a0ff372b3e6d68546cba10660f64cc4a8a1702f02b0fab68d0b62639094cc871d9163e24730 |
| SHA1 hash: | d095bde0fac14249ac0786abb3291eaa3ae588ef |
| MD5 hash: | b5d11e05afd3622b8409a8719ce6a120 |
| humanhash: | fruit-aspen-blossom-gee |
| File name: | Purchase Order.js |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'074'133 bytes |
| First seen: | 2025-11-08 08:01:27 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 24576:NWlhPgLBotN8KvlN7fcsIjCmy5T9sZCXyItQ29JcEEeIU2kv:EsLB6NlNgxCJ5u0tQUEeINkv |
| Threatray | 182 similar samples on MalwareBazaar |
| TLSH | T1BE35062E4119BD8F827B184C2087556638362AE4E0EF5BF4E3C39856BE1F87D356C8B5 |
| Magika | javascript |
| Reporter |  abuse_ch |
| Tags: | js RAT RemcosRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
122
Origin country :
SEVendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Tags:
n/a
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint masquerade obfuscated powershell powershell repaired
Verdict:
Malicious
Labled as:
Trojan.Agent
Verdict:
Malicious
File Type:
js
First seen:
2025-11-06T21:00:00Z UTC
Last seen:
2025-11-10T06:15:00Z UTC
Hits:
~1000
Detections:
HEUR:Trojan.BAT.Tesre.gen Trojan-Downloader.JS.Cryptoload.sb Trojan.Win32.Shellcode.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic Trojan.PowerShell.AmsiBypass.sb PDM:Trojan.Win32.Generic Trojan.VBS.SAgent.sb HEUR:Trojan.PowerShell.Tesre.sb Trojan.BAT.Agent.sb
Result
Threat name:
DonutLoader, Remcos
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains a sample name check
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
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: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Suspicious PowerShell Parameter Substring
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 DonutLoader
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Gathering data
Detection:
remcos
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-11-07 01:32:05 UTC
File Type:
Text
AV detection:
8 of 24 (33.33%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
donutloader
Similar samples:
+ 172 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Score:
10/10
Tags:
family:donutloader discovery execution loader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
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
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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 |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | CP_Script_Inject_Detector |
|---|---|
| Author: | DiegoAnalytics |
| Description: | Detects attempts to inject code into another process across PE, ELF, Mach-O binaries |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | DetectEncryptedVariants |
|---|---|
| Author: | Zinyth |
| Description: | Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded |
| Rule name: | Disable_Defender |
|---|---|
| Author: | iam-py-test |
| Description: | Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen |
| Rule name: | FreddyBearDropper |
|---|---|
| Author: | Dwarozh Hoshiar |
| Description: | Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip. |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | pe_no_import_table |
|---|---|
| Description: | Detect pe file that no import table |
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | Remcos_unpacked_PulseIntel |
|---|---|
| Author: | PulseIntel |
| Description: | Remcos Payload |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| 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 |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | Windows_Trojan_Remcos_b296e965 |
|---|---|
| Author: | Elastic Security |
| Reference: | https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.remcos. |
| Rule name: | win_remcos_rat_unpacked |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Detects strings present in remcos rat Samples. |
| Rule name: | win_remcos_w0 |
|---|---|
| Author: | Matthew @ Embee_Research |
| Description: | Detects strings present in remcos rat Samples. |
| Rule name: | yarahub_win_remcos_rat_unpacked_aug_2023 |
|---|---|
| Author: | Matthew @ Embee_Research |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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