MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5. 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: 19

Intelligence 19 IOCs YARA 28 File information Comments

SHA256 hash:	06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5
SHA3-384 hash:	5d779e70b03bdf5e481f3c995df27768eea7357afdc17846f4031ab6ff75b9694e2bfa7e43ac9331fbe23a37d934aa25
SHA1 hash:	017be244e138f85842d1af4efcae7cde5aed0d03
MD5 hash:	6d47f927efa2be69085f8899bd5734bc
humanhash:	friend-grey-violet-vermont
File name:	06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	914'944 bytes
First seen:	2025-08-11 20:14:59 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep	24576:UKEcZN7pVWDQThYtPbfGphaGlCP1xqeDslUjX:B3hkPCU1pQlUj
Threatray	139 similar samples on MalwareBazaar
TLSH	T1BD1523845345E822CC6A0F755C92C5362BFABEAE6212D717AFE97DEB3533311A164303
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	Neiki
Tags:	exe remcos RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

462

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5.exe

Verdict:

Malicious activity

Analysis date:

2025-08-11 20:09:57 UTC

Tags:

rat remcos netreactor auto-sch-xml

Link:

https://app.any.run/tasks/b7229405-eed6-4044-8638-a1d26788a6dd

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/20213/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689a4e14c633abe3908dfe15

Tags:

virus krypt lien 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

DNS request

Connection attempt

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

obfuscated packed packed packer_detected

Link:

https://www.filescan.io/uploads/689a4f9e9ef4d2ff7cf6f783/reports/90abe559-abb2-462d-bc62-fd2a49adff7a/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5

Malware family:

REMCOS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/9cb01c56-3a40-43f5-a287-fd9aa96026e4

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

.Net Executable PDB Path PE (Portable Executable) SOS: 0.23 Win 32 Exe x86

Link:

https://app.malva.re/file/6d47f927efa2be69085f8899bd5734bc

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5/

Verdict:

Malicious

Threat:

Family.REMCOS

Link:

https://tip.neiki.dev/file/06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5

Threat name:

ByteCode-MSIL.Trojan.SnakeKeylogger

Status:

Malicious

First seen:

2025-08-11 20:12:50 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

26 of 38 (68.42%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=a2splbzbivqiijodwqoad3qa62zatbrdnvtt5rjrsgcmy2fafhsq._file

Verdict:

malicious

Label(s):

unc_loader_037

nirsoft

remcos

admintool_mailpassview

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos collection credential_access discovery execution persistence rat spyware stealer

Link:

https://tria.ge/reports/250811-y2a8na1qv8/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies registry class

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in Windows directory

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Checks computer location settings

Executes dropped EXE

Reads user/profile data of web browsers

Command and Scripting Interpreter: PowerShell

Uses browser remote debugging

Detected Nirsoft tools

NirSoft MailPassView

NirSoft WebBrowserPassView

Remcos

Remcos family

Malware Config

C2 Extraction:

chmsts.duckdns.org:2070

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/9715937e-c8f6-4078-bb5c-5780bfd0fdb0

Unpacked files

SH256 hash:

06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5

MD5 hash:

6d47f927efa2be69085f8899bd5734bc

SHA1 hash:

017be244e138f85842d1af4efcae7cde5aed0d03

Link:

https://www.unpac.me/results/61bac9e4-1f5c-4c2a-9122-bcb62bada701/

SH256 hash:

5cba52c29f26b5bcfeefe2a930a01a1fa7483c8cd85c7346c9da3f635726a54b

MD5 hash:

70311f8452fef00364091094ea3ca9cf

SHA1 hash:

7b8e94004fcdce7b90085ea9b28b4b51ef9b2102

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/61bac9e4-1f5c-4c2a-9122-bcb62bada701/

SH256 hash:

136a60c9c8c39591bd8dc97f1fb75cead5c9f8ed578ea0fee8a6732254dbd6d5

MD5 hash:

ff838709ab4f29234fdbe779e474fa2a

SHA1 hash:

80f5ae51201c00596589e050cdc445da93403991

Detections:

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/61bac9e4-1f5c-4c2a-9122-bcb62bada701/

Parent samples :
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SH256 hash:

4d5c7432d423d7e7e53f8b634c2fec00a171d70dc9aee9d29d0ec61eeb02ebc8

MD5 hash:

2664087d80bab19da2f87321b298ef9b

SHA1 hash:

850ed8a7b8cadcdc5e236f213c754ac0f196dff6

Detections:

malware_windows_remcos_rat

win_remcos_rat_unpacked

INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Link:

https://www.unpac.me/results/61bac9e4-1f5c-4c2a-9122-bcb62bada701/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/06a4f5872145/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/06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5

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:	Check_OutputDebugStringA_iat Create hunting rule

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:	DebuggerCheck__QueryInfo 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_SQLQuery_ConfidentialDataStore Create hunting rule
Author:	ditekSHen
Description:	Detects executables containing SQL queries to confidential data stores. Observed in infostealers

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:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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:	WIN_WebSocket_Base64_C2_20250726 Create hunting rule
Author:	dogsafetyforeverone
Description:	Detects configuration strings used by malware to specify WebSocket command-and-control endpoints inside Base64-encoded data. It looks for prefixes such as '#ws://' or '#wss://' that were found in QuasarRAT configuration data.

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.

Link

https://tip.neiki.dev/file/06a4f5872145608425c3b41c01ee00f6b20986236d673ec5319184cc68a029e5

Cape

https://www.capesandbox.com/analysis/20213/

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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