MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7. 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


Intelligence 15 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7
SHA3-384 hash: b814c2e3061efb6f212b5c1e0e275f812c8d34d5d3a7ba78baf1e1540d1a9ea91248ef4d64eb4df861003353159d7241
SHA1 hash: a6b0ea6054697aa09a1cec043776d49d3d1f7de4
MD5 hash: 6ae56d74ed7a5b0dd9f70a494c5f6e68
humanhash: snake-fanta-fifteen-fish
File name:Décovi_5S24KUtEC_q2Bb3llR.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:918'406 bytes
First seen:2025-09-26 11:18:44 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/plain
ssdeep 12288:s7rjABKccnOOTym2xcY5JH/p2PX+7a0EzF9AAvaODDuxZrc3cNGDrIsP5a6R:eKKccnvTy9Dooz4rMkD+BkDrhPv
Threatray 1'536 similar samples on MalwareBazaar
TLSH T126158BEA2DD20FA30A105FEB32F11DEF2E959291F648E1A8799178D1631213C5F7C69C
Magika batch
Reporter lowmal3
Tags:bat RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Décovi_5S24KUtEC_q2Bb3llR.bat
Verdict:
No threats detected
Analysis date:
2025-09-26 11:20:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3164c596-5a07-4bf5-bcd0-88c497265229

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29152/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68d676b5d42217a4290be363
Tags:
obfuscate autorun xtreme shell
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
base64 evasive obfuscated powershell
Link:
https://www.filescan.io/uploads/68d676c974e5a28989949daf/reports/90c03692-4f9e-4c0f-b054-aca13b61a829/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7
Verdict:
Malicious
File Type:
unix shell
First seen:
2025-09-26T05:46:00Z UTC
Last seen:
2025-09-26T05:46:00Z UTC
Hits:
~100
Detections:
Backdoor.Win32.Remcos.e Trojan.PowerShell.AmsiBypass.sb PDM:Trojan.Win32.Generic HEUR:Trojan.BAT.Tesre.gen Trojan.Win32.Shellcode.sb Trojan.BAT.Agent.sb HEUR:Trojan.PowerShell.Tesre.sb
Link:
https://opentip.kaspersky.com/c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7/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/1784700
Signature
.NET source code contains a sample name check
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Detected Remcos RAT
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: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1784700 Sample: D#U00e9covi_5S24KUtEC_q2Bb3... Startdate: 26/09/2025 Architecture: WINDOWS Score: 100 97 smashguy10.duckdns.org 2->97 99 api.ipify.org 2->99 101 api.findip.net 2->101 109 Suricata IDS alerts for network traffic 2->109 111 Found malware configuration 2->111 113 Malicious sample detected (through community Yara rule) 2->113 117 12 other signatures 2->117 9 cmd.exe 1 2->9         started        12 cmd.exe 1 2->12         started        14 cmd.exe 1 2->14         started        16 16 other processes 2->16 signatures3 115 Uses dynamic DNS services 97->115 process4 dnsIp5 121 Suspicious powershell command line found 9->121 19 cmd.exe 1 9->19         started        21 conhost.exe 9->21         started        23 cmd.exe 1 12->23         started        25 conhost.exe 12->25         started        27 cmd.exe 1 14->27         started        29 conhost.exe 14->29         started        95 127.0.0.1 unknown unknown 16->95 31 cmd.exe 1 16->31         started        33 cmd.exe 1 16->33         started        35 28 other processes 16->35 signatures6 process7 process8 37 cmd.exe 3 19->37         started        40 cmd.exe 2 23->40         started        42 cmd.exe 2 27->42         started        44 cmd.exe 2 31->44         started        46 cmd.exe 2 33->46         started        48 cmd.exe 35->48         started        50 cmd.exe 35->50         started        52 cmd.exe 35->52         started        54 10 other processes 35->54 signatures9 119 Suspicious powershell command line found 37->119 56 2 other processes 37->56 61 2 other processes 40->61 63 2 other processes 42->63 65 2 other processes 44->65 67 2 other processes 46->67 69 2 other processes 48->69 71 2 other processes 50->71 73 2 other processes 52->73 75 20 other processes 54->75 process10 dnsIp11 103 smashguy10.duckdns.org 192.145.124.6, 49692, 53924 M247GB Romania 56->103 105 api.ipify.org 104.26.12.205, 443, 49693 CLOUDFLARENETUS United States 56->105 107 api.findip.net 172.67.214.3, 443, 49696 CLOUDFLARENETUS United States 56->107 91 2 other malicious files 56->91 dropped 123 Drops script or batch files to the startup folder 56->123 125 Found suspicious powershell code related to unpacking or dynamic code loading 56->125 127 Installs a global keyboard hook 56->127 129 Loading BitLocker PowerShell Module 56->129 77 C:\Users\user\AppData\Roaming\...\6142.bat, ASCII 61->77 dropped 79 C:\Users\user\AppData\Roaming\...\678d.bat, ASCII 63->79 dropped 81 C:\Users\user\AppData\Roaming\...\e072.bat, ASCII 65->81 dropped 83 C:\Users\user\AppData\Roaming\...\d2ff.bat, ASCII 67->83 dropped 85 C:\Users\user\AppData\Roaming\...\2b86.bat, ASCII 69->85 dropped 87 C:\Users\user\AppData\Roaming\...\3c0c.bat, ASCII 71->87 dropped 89 C:\Users\user\AppData\Roaming\...\4ccc.bat, ASCII 73->89 dropped 93 9 other malicious files 75->93 dropped 131 Detected Remcos RAT 75->131 file12 signatures13
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7/
Verdict:
Malicious
Threat:
Family.DONUTLOADER
Link:
https://tip.neiki.dev/file/c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7
Threat name:
Text.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-09-26 11:23:42 UTC
File Type:
Text
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yiohzqklmhaee2tmn7tzxom4olhl73qwzh3p2cazllmiacrgy23q._file
Verdict:
malicious
Label(s):
donut_injector
Create hunting rule
remcos
Create hunting rule
Similar samples:
15ddcaed4f9a9e7ef07e4f64b3850a76b0d8ac74971d770b936c6bce3e415e6b
RemcosRAT
1eeefad3b4af3c0592006bbf93b5ef9c958d72470aa26bb2c042f5e3966eb059
RemcosRAT
8ed39975fb97ec9dc4e4e39d96e1af7d500f5a7923b6a4cdcd446aa731e9c834
RemcosRAT
b22d450f1a3799f1c1d1ab6a655a8f9987b32d7d15b254fd586fb4aab34a9d65
RemcosRAT
b9ddd7911daf8a8d71a31e87bdf7cc96ae29c53b28ba508f7a4b48e6fe081a96
RemcosRAT
ccf51177e35672532087c0035850fa3c3842a99d39f0d93275f9cf383534fe78
RemcosRAT
d50825f42162126cafad375cfe5995b2a0b632a5238ed9b66d929613e2ec7020
RemcosRAT
d96e82d980a8872cb39e5ab834e00ea41f4572321f2e5c5a5aab71d3d03f3458
RemcosRAT
error
RemcosRAT
+ 1'526 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/250926-nez86axsdz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Command and Scripting Interpreter: PowerShell
Looks up external IP address via web service
Drops startup file
Badlisted process makes network request
Detects DonutLoader
DonutLoader
Donutloader family
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c21c7cc14b61/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/c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
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.

Malspam

RemcosRAT

Batch (bat) bat c21c7cc14b61c0426a6c6fe79bb99c72cebfee16c9f6fd08195ad8800a26c6b7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29152/

Comments