MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449. 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: 18

Intelligence 18 IOCs YARA 23 File information Comments

SHA256 hash:	f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449
SHA3-384 hash:	4075b01ee62173a385d3f2ed74eee8bfacf27953fea662530d559251bae7ee94084890b42aa066139b893fb4aadc9a9c
SHA1 hash:	9b14932b92f429b0160fb24125f8fa5809226a76
MD5 hash:	a24a0edf10825128746824bd2356dbab
humanhash:	quiet-comet-wyoming-xray
File name:	PI-23AB0209.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	968'704 bytes
First seen:	2025-08-06 20:12:43 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	24576:VlN/m2PhGkoIt3GLOVczKPwsBGTFTGjDFvvm7fY+YnvI2j:PFm2PhXJGGhBVjJ20+Ynv
Threatray	1'259 similar samples on MalwareBazaar
TLSH	T17F25226E35B9CA31D2B997F15EF2E27913B12C18E431E3034DC5ADDB3A14B10DA18B26
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika	pebin
Reporter	AntiSkidding
Tags:	exe remcos RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

483

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

PI-23AB0209.exe

Verdict:

Malicious activity

Analysis date:

2025-08-06 11:46:33 UTC

Tags:

rat remcos auto-sch-xml

Link:

https://app.any.run/tasks/30344866-36a4-4bfb-8f8e-ff8ca3811345

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/19344/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689340981e8a59ee04e665ec

Tags:

remcos virus krypt msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a process with a hidden window

Creating a file in the %temp% directory

Launching a process

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Сreating synchronization primitives

Setting a keyboard event handler

Connection attempt

Sending a custom TCP request

DNS request

Sending an HTTP GET request

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

packed remcos

Link:

https://www.filescan.io/uploads/6893b77133ecf0a15b758900/reports/9450d28c-e500-4b80-9a39-1d51b184ed25/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449

Malware family:

REMCOS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/32f88d3b-f406-41a9-8d85-080d12766a0b

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable PDB Path PE (Portable Executable) SOS: 0.35 Win 32 Exe x86

Link:

https://app.malva.re/file/a24a0edf10825128746824bd2356dbab

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449/

Verdict:

Malicious

Threat:

Family.REMCOS

Link:

https://tip.neiki.dev/file/f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449

Threat name:

ByteCode-MSIL.Backdoor.Remcos

Status:

Malicious

First seen:

2025-08-06 06:15:22 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

17 of 24 (70.83%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6h4ec4rn7p224a6qy24cmnlf6civodwjuhu5y34t6v2z65doereq._file

Verdict:

malicious

Label(s):

unc_loader_037

remcos

RemcosRAT

c7e099c60f551279ad41d2f35a001e14082346f15e312560771dac7302964da9

RemcosRAT

e646f69ab13559c8f45cf9ec17c23b359bfd93a61d4932da2d81aab6f25c9d79

RemcosRAT

error

RemcosRAT

f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449

RemcosRAT

+ 1'249 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos discovery execution persistence rat

Link:

https://tria.ge/reports/250806-yzpy2asxg1/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

SmartAssembly .NET packer

Suspicious use of SetThreadContext

Checks computer location settings

Command and Scripting Interpreter: PowerShell

Remcos

Remcos family

Malware Config

C2 Extraction:

147.124.219.132:2828

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/dcfc5633-81fe-4151-a804-0b29918ace8c

Unpacked files

SH256 hash:

f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449

MD5 hash:

a24a0edf10825128746824bd2356dbab

SHA1 hash:

9b14932b92f429b0160fb24125f8fa5809226a76

Link:

https://www.unpac.me/results/e7b10a4f-17b1-4fd7-a028-eaab78b475b8/

SH256 hash:

00049daf2e95649a724141fb24f6ac431a1a451f4b686dbbb97443379c821088

MD5 hash:

aa8038c1eb2e84e43b46114d91f8b00b

SHA1 hash:

4f7d03e7cd44ca646a2dcc8f53534f3aee9718ef

Detections:

INDICATOR_EXE_Packed_SmartAssembly

Link:

https://www.unpac.me/results/e7b10a4f-17b1-4fd7-a028-eaab78b475b8/

Parent samples :

9cc3509d0971ef4d17669266b88c3e7c47e47581b277c5c8e4a59b93ef761c9b
1bfc67fda739fb4b9d8ec51ab705c1348396d37eb76be0035183e12b26c7f6ea
00d6bcb13a0e5ee0a759c663a63d75866a7ceacbc91e3b63d96580926c5053af
f1f841722dfbf5ae03d0c6b8263565f091570ec9a1e9dc6f93f5759f746e2449
1583f581b4aed3b58c6dfaa9e8934acb0afbfe12ebc7a5c99ee8757242b4f7fa
5d112bae8efc523f75ae6067c634101605b6d4c5ee4bf67a264ad15daa419b71
c5746aba0a4755f24a90f73d4a3220c63cbcd475f9b24b5600778e5e6a49ce8b
ec21d54163c145fd0a8d5f5569913cf9a27bc54bd756028124e01e52e707b69d

SH256 hash:

80cb914f373eb8de09fcbb6ad2790d476c0317c5bde8cf918a439b440c2bcf2b

MD5 hash:

594cdf05d5890a274787b4b8f2e5e3e5

SHA1 hash:

6e7b4ee6ed36a9704a97306d5abb95561f02bea1

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/e7b10a4f-17b1-4fd7-a028-eaab78b475b8/

SH256 hash:

0699a1d2eb483673f6c95d834604129b40761ef3b36a1c57057027d92476ad6f

MD5 hash:

0a7ffb2c7f91e1d98f24678610accf24

SHA1 hash:

ef91516cbc977ceba172f6b4b2e2adf9f136b9d1

Detections:

win_remcos_w0

win_remcos_auto

Remcos

malware_windows_remcos_rat

win_remcos_rat_unpacked

INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Link:

https://www.unpac.me/results/e7b10a4f-17b1-4fd7-a028-eaab78b475b8/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f1f841722dfb/report/overview.html

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 Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

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:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	pe_imphash Create hunting rule

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:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(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.

Cape

https://www.capesandbox.com/analysis/19344/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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