MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928. 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: 12


Intelligence 12 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928
SHA3-384 hash: f900fdf0739f901aeb65f766e2abcf4ca58c3b551ac93d378b87785395979a8c2af156ed9c9ca9c80e1988380e7a002a
SHA1 hash: 09b3f9829eb39891c793a0d07a9fbc20ae5d8226
MD5 hash: e89cc3a8763e0f3465184acb4fadc41e
humanhash: mockingbird-spaghetti-football-skylark
File name:Confirmation copy for EFT#_20251028_HSBC_NY_E-SWFT050AX52951MX-KR.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'152'103 bytes
First seen:2025-10-16 06:08:49 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 12288:ixFX8HoXE81AES2dswUcB784kZO2hipjonk9iDr79vQfOCP2riFL14oco1YVXgtG:Qs4rpglZZslqr7OGCQtouxW1JLA9bXV
Threatray 1'691 similar samples on MalwareBazaar
TLSH T129359026450EB9EC27A46CCCB0F62F9A33F885310135B54C9A6DA7DB0E1775E3C9B618
Magika javascript
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f08c1d04e22ce9acdaae74
Tags:
obfuscate autorun xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint obfuscated powershell
Link:
https://www.filescan.io/uploads/68f08c1fdf5cb32bf1ef63c2/reports/8d7fbe76-cdd8-493d-bc6b-774ebd59d226/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928
Verdict:
Malicious
File Type:
js
First seen:
2025-10-15T21:39:00Z UTC
Last seen:
2025-10-18T04:05:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1796268
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
Drops script or batch files to the startup folder
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
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 Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1796268 Sample: Confirmation copy for EFT#_... Startdate: 16/10/2025 Architecture: WINDOWS Score: 100 105 rewasay.buynewarexch.com 2->105 107 bg.microsoft.map.fastly.net 2->107 119 Suricata IDS alerts for network traffic 2->119 121 Found malware configuration 2->121 123 Malicious sample detected (through community Yara rule) 2->123 125 12 other signatures 2->125 10 wscript.exe 1 1 2->10         started        13 cmd.exe 1 2->13         started        15 cmd.exe 1 2->15         started        17 8 other processes 2->17 signatures3 process4 dnsIp5 131 Wscript starts Powershell (via cmd or directly) 10->131 133 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->133 135 Suspicious execution chain found 10->135 137 Creates processes via WMI 10->137 20 cmd.exe 1 10->20         started        23 cmd.exe 1 13->23         started        25 conhost.exe 13->25         started        27 cmd.exe 1 15->27         started        29 conhost.exe 15->29         started        103 127.0.0.1 unknown unknown 17->103 31 cmd.exe 1 17->31         started        33 cmd.exe 17->33         started        35 cmd.exe 17->35         started        37 11 other processes 17->37 signatures6 process7 signatures8 127 Suspicious powershell command line found 20->127 129 Wscript starts Powershell (via cmd or directly) 20->129 39 cmd.exe 1 20->39         started        41 conhost.exe 20->41         started        43 cmd.exe 1 23->43         started        46 cmd.exe 1 27->46         started        48 cmd.exe 1 31->48         started        50 cmd.exe 33->50         started        52 cmd.exe 35->52         started        54 cmd.exe 37->54         started        56 3 other processes 37->56 process9 signatures10 58 cmd.exe 2 39->58         started        66 2 other processes 43->66 143 Suspicious powershell command line found 46->143 145 Wscript starts Powershell (via cmd or directly) 46->145 61 powershell.exe 46->61         started        64 conhost.exe 46->64         started        68 2 other processes 48->68 70 2 other processes 50->70 72 2 other processes 52->72 74 2 other processes 54->74 76 6 other processes 56->76 process11 file12 139 Suspicious powershell command line found 58->139 141 Wscript starts Powershell (via cmd or directly) 58->141 78 powershell.exe 5 30 58->78         started        83 conhost.exe 58->83         started        85 C:\Users\user\AppData\Roaming\...\7166.bat, ASCII 61->85 dropped 87 C:\Users\user\AppData\Roaming\...\104e.bat, ASCII 66->87 dropped 89 C:\Users\user\AppData\Roaming\...\c35c.bat, ASCII 68->89 dropped 91 C:\Users\user\AppData\Roaming\...\16fc.bat, ASCII 70->91 dropped 93 C:\Users\user\AppData\Roaming\...\e746.bat, ASCII 72->93 dropped 95 C:\Users\user\AppData\Roaming\...\86dd.bat, ASCII 74->95 dropped 97 C:\Users\user\AppData\Roaming\...\bc1f.bat, ASCII 76->97 dropped 99 C:\Users\user\AppData\Roaming\...\839f.bat, ASCII 76->99 dropped signatures13 process14 dnsIp15 109 rewasay.buynewarexch.com 143.244.46.151, 2919, 49681 COGENT-174US United States 78->109 101 C:\Users\user\AppData\Roaming\...\f67e.bat, ASCII 78->101 dropped 111 Drops script or batch files to the startup folder 78->111 113 Found suspicious powershell code related to unpacking or dynamic code loading 78->113 115 Installs a global keyboard hook 78->115 117 Loading BitLocker PowerShell Module 78->117 file16 signatures17
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2025-10-16 05:45:03 UTC
File Type:
Text
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yafmpw4rcvrkas2vyo5c7ewx3wft543jshdaknvoat6innz4xeua._file
Verdict:
malicious
Label(s):
donut_injector
Create hunting rule
remcos
Create hunting rule
Similar samples:
1eeefad3b4af3c0592006bbf93b5ef9c958d72470aa26bb2c042f5e3966eb059
RemcosRAT
4245e415209b1f13c215b623c3ccf1020d1e01e7ac9084a2f20d7a1abf79834a
RemcosRAT
a3ee2f845200a4782510c67342e6f440ce804b9d724b33e0ddf9d3956d22f851
RemcosRAT
ae75a51180428fe5cd35ac7b0771c6f8e9052aa76a5846e355d87ccd60fea6e2
RemcosRAT
b5c978f16a11c1bc6589e5b4b78d08fec1cea4cf2df5df9c67b1eda26e485f6d
RemcosRAT
c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7
RemcosRAT
cfcb073e8c7fc121007839f899c43970023bdfe656924af62268f345e3aeafa5
RemcosRAT
error
RemcosRAT
+ 1'681 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader discovery execution loader
Link:
https://tria.ge/reports/251016-gwqmqaht9f/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Command and Scripting Interpreter: PowerShell
Drops startup file
Badlisted process makes network request
Detects DonutLoader
DonutLoader
Donutloader family
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/c00ac7db911562a04b55c3ba2f92d7dd8b3ef36991c60536ae04fc86b73cb928

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.

Comments