MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4. 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 1 YARA 32 File information Comments

SHA256 hash:	c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4
SHA3-384 hash:	336d6ed951054632d084a558192bc63561eeac813e893d16060356cd174c4726f286c96a69738028f6ca575fd66dc35e
SHA1 hash:	6119677834263628a51ceb33cb6dec2a7070ea6f
MD5 hash:	646edbee917ea0e382cdf2334607d450
humanhash:	romeo-jig-bravo-orange
File name:	securedstub.ps1
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	2'354'554 bytes
First seen:	2026-10-26 13:45:13 UTC
Last seen:	Never
File type:	ps1
MIME type:	text/plain
ssdeep	49152:bJE21GITqYvZZv11y2e5RsvOI5ki7Fot2ArSxTY1ya:8
TLSH	T156B523199B5E22EF0D24E0F7F92678507A8962938C41461A43BD82F434F5CF99B3BC67
Magika	powershell
Reporter	abuse_ch
Tags:	ps1 RAT RemcosRAT

abuse_ch

RemcosRAT C2:
155.103.69.239:4551

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOC	ThreatFox Reference
155.103.69.239:4551	https://threatfox.abuse.ch/ioc/1929821/

Intelligence

File Origin

# of uploads :

# of downloads :

125

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Other.Malware-gen.24982812.UNOFFICIAL

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6adf59795a22ac805bda59cb

Tags:

vmdetect crypted keylog remo

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

aes aspnet_compiler base64 crypto encrypted evasive lolbin obfuscated obfuscated reconnaissance

Link:

https://www.filescan.io/uploads/6adf59740357eedc2f393819/reports/49881813-3ddd-48a6-8d63-f5f9ffff01dc/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4

Verdict:

Malicious

File Type:

unix shell

First seen:

2026-10-26T07:15:00Z UTC

Last seen:

2026-10-28T01:19:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4/results?tab=lookup

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1991986

Signature

C2 URLs / IPs found in malware configuration

Contains functionality to bypass UAC (CMSTPLUA)

Contains functionality to register a low level keyboard hook

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Contains functionalty to change the wallpaper

Delayed program exit found

Detected Remcos RAT

Found malware configuration

Injects a PE file into a foreign processes

Installs a global keyboard hook

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Sigma detected: Remcos

Suricata IDS alerts for network traffic

Unusual module load detection (module proxying)

Writes to foreign memory regions

Yara detected Powershell decode and execute

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Score:

47%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4

Verdict:

inconclusive

YARA:

1 match(es)

Tags:

PowerShell T1059.001

Link:

https://app.malva.re/file/646edbee917ea0e382cdf2334607d450

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4/

Threat name:

Script-PowerShell.Trojan.Malgent

Status:

Malicious

First seen:

2026-10-26 10:41:05 UTC

File Type:

Text (PowerShell)

AV detection:

9 of 24 (37.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ywteftzeo7u6q7vzypmabc3nkc7pw2sughmdho2adc7xg4cp3lka._file

Verdict:

malicious

Label(s):

Remcos

Link:

https://reports.threatray.com/eb2767b2-c65e-4513-9661-2b23daaf9da6

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:jardon discovery execution rat suricata

Link:

https://tria.ge/reports/261026-q2k4vsxsav/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: PowerShell

System Location Discovery: System Language Discovery

ConfuserEx .NET packer

Suspicious use of SetThreadContext

Family: Remcos

Suricata alert: REMCOS RAT Malware Inbound C2 Communication

Suricata alert: REMCOS RAT Malware Outbound C2 Communication

Malware Config

C2 Extraction:

155.103.69.239:4551
155.103.69.239:4553
155.103.69.239:4550

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:	AgentTesla_PowerShell_AESManaged_InMemory_Loader Create hunting rule
Author:	Aldair Maihuiri
Description:	Detects a PowerShell AES-CBC in-memory loader through its managed cryptography and execution chain

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:	detect_powershell Create hunting rule
Author:	daniyyell
Description:	Detects suspicious PowerShell activity related to malware execution

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:	iexplorer_remcos Create hunting rule
Author:	iam-py-test
Description:	Detect iexplorer being taken over by Remcos

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:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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:	telebot_framework Create hunting rule
Author:	vietdx.mb

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

Rule name:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

Rule name:	Windows_Trojan_Remcos_921ef449 Create hunting rule
Author:	Elastic Security

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_Clipboard_Clipper_Thengavar Create hunting rule
Author:	Thengavar
Description:	Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_74566f98 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_79234c04 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

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.

Web download

RemcosRAT

ps1 c5a642cf2477e9e87eb9c3d8008b6d50befb6a5431d833bb4018bf73704fdad4

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/4030005/

Delivery method

Distributed via web download

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