MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3. 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 24 File information Comments

SHA256 hash:	db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3
SHA3-384 hash:	ab8fdf40894126f4a820bcc731674d8e19cb04d3dd322bf7a9daeeb0b760d662e1e07d2474ac6a2901d9872eb5ef799f
SHA1 hash:	9db67a7829be4a802e1343c8864ba79718335075
MD5 hash:	7a796f285af3626fcb465e41e083989a
humanhash:	item-undress-maine-west
File name:	CCS-202503123.scr
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	186'880 bytes
First seen:	2025-03-05 17:05:06 UTC
Last seen:	2025-03-05 17:16:49 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	3072:pdXWtE7JepUP6k21XY+hroFmSHAl9z1muxARkhacdxr3x:pEvhonHAlZ1pARkEcz3
Threatray	5'912 similar samples on MalwareBazaar
TLSH	T1CA048417B6CA85B1C2706B76C4AB053047B4F982EF63D73E3D8A235A0D437AA9855337
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
dhash icon	74f4f0f0f0f0f0f0 (2 x RemcosRAT, 1 x PureLogsStealer)
Reporter	smica83
Tags:	exe HUN RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

571

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

CCS-202503123.scr

Verdict:

Malicious activity

Analysis date:

2025-03-05 17:07:02 UTC

Tags:

opendir rat remcos remote purecrypter netreactor

Link:

https://app.any.run/tasks/5014d087-6d44-4403-977c-420b8c90bd6c

Note:

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

Detection(s):

SecuriteInfo.com.Win32.CrypterX-gen.28187.18282.UNOFFICIAL

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67c88535c8d04e92a4bf26ec

Tags:

n/a

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Sending an HTTP GET request to an infection source

Launching a process

Connection attempt

Sending a custom TCP request

DNS request

Sending an HTTP GET request

Reading critical registry keys

Creating a file in the %temp% directory

Connection attempt to an infection source

Stealing user critical data

Forced shutdown of a system process

Unauthorized injection to a system process

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3

Result

Verdict:

UNKNOWN

Details

Windows PE Executable

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/e3835c37-c1a9-4ecf-8b9f-6affa8d1f379

Result

Threat name:

Remcos

Detection:

malicious

Classification:

phis.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1630286

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Contains functionality to bypass UAC (CMSTPLUA)

Contains functionality to inject code into remote processes

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Delayed program exit found

Detected Remcos RAT

Downloads files with wrong headers with respect to MIME Content-Type

Found malware configuration

Injects a PE file into a foreign processes

Joe Sandbox ML detected suspicious 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

Suricata IDS alerts for network traffic

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

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)

Tries to steal Mail credentials (via file registry)

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected Costura Assembly Loader

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Yara detected WebBrowserPassView password recovery tool

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3/

Threat name:

Win32.Trojan.CrypterX

Status:

Malicious

First seen:

2025-03-05 15:12:57 UTC

AV detection:

14 of 38 (36.84%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=3mevp6oyvfkdcqb5mozt67ccjjkzgqsm5l3k56zfnfcvpixflczq._file

Verdict:

malicious

Label(s):

remcos

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:ogsucrefile collection discovery rat

Link:

https://tria.ge/reports/250305-vlxj6stmv6/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Detected Nirsoft tools

NirSoft MailPassView

NirSoft WebBrowserPassView

Remcos

Remcos family

Suspicious use of NtCreateUserProcessOtherParentProcess

Malware Config

C2 Extraction:

15.204.0.108:4607

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/3bc62daf-14f3-4faa-aa3f-f569d230b198

Unpacked files

SH256 hash:

db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3

MD5 hash:

7a796f285af3626fcb465e41e083989a

SHA1 hash:

9db67a7829be4a802e1343c8864ba79718335075

Detections:

PureCrypter_Stage1

Link:

https://www.unpac.me/results/f5791e1c-ad65-4f5c-b70c-3fe852752efd/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/db0957f9d8a9/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/db0957f9d8a95431403d63b33f7c424a5593424ceaf6aefb25694557a2e558b3

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:	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:	Lumma_Stealer_Detection Create hunting rule
Author:	ashizZz
Description:	Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:	https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/

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_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:	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.

No further information available

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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