MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0. 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: 16

Intelligence 16 IOCs YARA 35 File information Comments 1

SHA256 hash:	456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0
SHA3-384 hash:	fdae2f809f99c8491f21ba054ee6b4ded6c1e401cf66ea0e6c6a9837d0fa252a5407ec0edbe32d2a88c80f614cbd533a
SHA1 hash:	67e021ec502f8a532c3216bb84c15386a54d942c
MD5 hash:	64c793026974573d251564a1dcf7364b
humanhash:	lion-robin-wyoming-cardinal
File name:	64c793026974573d251564a1dcf7364b
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	502'784 bytes
First seen:	2023-09-07 07:23:33 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	d5b70e22276decc41f732fe8162e7fe0 (2 x RemcosRAT, 1 x MarsStealer, 1 x Smoke Loader)
ssdeep	12288:w6jdZqR+3Xs9CBvOjCsCvIHH5jJ3CBw0r:w6jnqRYiCBvORHH5RC
Threatray	372 similar samples on MalwareBazaar
TLSH	T1BAB4F022B691C072E45365341970C7A24A3BFCF28B65A5CF6BA43A3E5E70BD19B30747
TrID	39.5% (.EXE) InstallShield setup (43053/19/16) 28.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 9.6% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	112161099d632610 (1 x RemcosRAT)
Reporter	zbetcheckin
Tags:	32 exe RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

286

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

64c793026974573d251564a1dcf7364b

Verdict:

Malicious activity

Analysis date:

2023-09-07 07:25:00 UTC

Tags:

installer stealer remcos

Link:

https://app.any.run/tasks/1d138968-d8c2-40fe-855a-f6bebc3922b6

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/446903/

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.7326.17319.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Sending a custom TCP request

Gathering data

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Malware family:

REMCOS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/141408ca-dd70-4160-b4f2-5060b768495c

Result

Threat name:

Remcos

Detection:

malicious

Classification:

phis.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1305029

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to bypass UAC (CMSTPLUA)

Contains functionality to inject code into remote processes

Contains functionality to modify clipboard data

Delayed program exit found

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found malware configuration

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for submitted file

Sigma detected: Remcos

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Instant Messenger accounts or passwords

Tries to steal Mail credentials (via file / registry access)

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Yara detected WebBrowserPassView password recovery tool

Behaviour

Behavior Graph:

Download SVG

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0/

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2023-09-07 06:43:33 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=ivxqtny62colywipni5y2wvmy7ypxfcsdwfrtoanfiqb4x3twwqa._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

50360abbc508d169cda7d1a79ad2032827b553f0b9ed82c7b1609d074c20a112

RemcosRAT

61a3e788d1ae18d12df0bf7198a922c14e998c195b520a5543b43814b8bcbfa0

RemcosRAT

67334009d5d6fb492333a8d6a850b2c464654aaaf96ddeef125129af29ea3d66

RemcosRAT

846ae70abd97cfc15d14a0261e9c6c38643e071dddf73fafe3bc3e5d3769511b

RemcosRAT

8bf8b980381fd607ec9065bfbcd572973770ee77c815354a35455c10651516d5

RemcosRAT

b2823172397c389e1ff948bd03473193ed8527eb19edff06cbb16e2b43ebc19f

RemcosRAT

b2d5e15268cb130c995118e17afa1198ca19604a20b91f1907a7ef18210db30f

RemcosRAT

d4da52e07bcf01df28c9106df95b75385eef2c06e3c4754efa6d1b772e940ea7

RemcosRAT

+ 362 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:remotehost collection rat spyware stealer

Link:

https://tria.ge/reports/230907-h8c3tsfd62/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Program crash

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Reads user/profile data of web browsers

NirSoft MailPassView

NirSoft WebBrowserPassView

Nirsoft

Remcos

Malware Config

C2 Extraction:

192.210.255.48:1070

Unpacked files

SH256 hash:

d8f7e714feb79955ad4b57eed383958a26acfcb4796728f5a9941c3a0c8ab4ab

MD5 hash:

076fb65f58641e5ea6aa1171a54cf155

SHA1 hash:

59c655aa8a4edf8bafc24fd52519aeecee97effb

Detections:

Remcos

win_remcos_auto

Link:

https://www.unpac.me/results/84bda0c6-88c5-4256-84c7-95ceb486e5d3/

SH256 hash:

456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0

MD5 hash:

64c793026974573d251564a1dcf7364b

SHA1 hash:

67e021ec502f8a532c3216bb84c15386a54d942c

Link:

https://www.unpac.me/results/84bda0c6-88c5-4256-84c7-95ceb486e5d3/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/456f09b71ed0/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/456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0

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:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

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

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

Rule name:	INDICATOR_EXE_Packed_MPress Create hunting rule
Author:	ditekSHen
Description:	Detects executables built or packed with MPress PE compressor

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Rule name:	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many email and collaboration clients. Observed in information stealers

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:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	QbotStuff Create hunting rule
Author:	anonymous

Rule name:	Remcos Create hunting rule
Author:	kevoreilly
Description:	Remcos Payload

Rule name:	REMCOS_RAT_variants Create hunting rule

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

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

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	TeslaCryptPackedMalware Create hunting rule

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

Rule name:	Windows_Trojan_Smokeloader_3687686f Create hunting rule
Author:	Elastic Security

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:	yara_template Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

exe 456f09b71ed09cbc590f6a3b8d5aacc7f0fb94521d8b19b80d2a201e5f73b5a0

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2710193/

Cape

https://www.capesandbox.com/analysis/446903/

Comments

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zbet commented on 2023-09-07 07:23:34 UTC

url : hxxp://192.3.108.47/Msoffice/SecurityHealthSystray.exe