MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 69db3f623fe1895461959fa4396e096c0892ff0fada1783a96274dc9bd0a8305. 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: 11


Intelligence 11 IOCs YARA 20 File information Comments

SHA256 hash: 69db3f623fe1895461959fa4396e096c0892ff0fada1783a96274dc9bd0a8305
SHA3-384 hash: edc5a4770001cb4f124f47a19d9ff4add221d1767993841816e256f77bc0a0dba15c09c484c35e5ce1f081f71e9fb57d
SHA1 hash: 4f4a0c3560418b9a8c06462b0024c293f6d0f500
MD5 hash: a6ba515de2541be9cb77f4e61916ec3e
humanhash: vermont-yellow-ceiling-alpha
File name:donotopen.JS_orig
Download: download sample
Signature RemcosRAT
File size:5'622'250 bytes
First seen:2025-12-10 06:45:09 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:iqu7NpE5J/anYReYTALEoD55hLUeUa8EfCaNT790:jYMJ/9sEoD5fAeUa8EfFH90
Threatray 2'879 similar samples on MalwareBazaar
TLSH T1954680502AA8016AD5F5EDAEFD2C5A509E4D3F7712864D2F303E649F3B6F148B131E28
Magika javascript
Reporter darkyyyyyy
Tags:js obfuscated RemcosRAT


Avatar
darkyyyyyy
looks like remcosrat

Intelligence


File Origin
# of uploads :
1
# of downloads :
110
Origin country :
NL NL
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Tags:
autoit emotet
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug autoit dropper evasive expired-cert fingerprint keylogger obfuscated repaired
Verdict:
Malicious
File Type:
js
First seen:
2025-12-10T03:58:00Z UTC
Last seen:
2025-12-10T04:36:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Script.Generic
Gathering data
Threat name:
Script-JS.Trojan.Heuristic
Status:
Malicious
First seen:
2025-12-10 06:53:19 UTC
File Type:
Text (JavaScript)
AV detection:
4 of 24 (16.67%)
Threat level:
  2/5
Result
Malware family:
donutloader
Score:
  10/10
Tags:
family:donutloader collection discovery execution loader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
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
Detects DonutLoader
DonutLoader
Donutloader family
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Malspam

RemcosRAT

Java Script (JS) js 69db3f623fe1895461959fa4396e096c0892ff0fada1783a96274dc9bd0a8305

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments