MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4b8014a57142265ac47b3e29f68de51eb145b62ae613f7efb8ff1fe4fb22c8c. 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: 17

Intelligence 17 IOCs YARA 14 File information Comments

SHA256 hash:	d4b8014a57142265ac47b3e29f68de51eb145b62ae613f7efb8ff1fe4fb22c8c
SHA3-384 hash:	67f1b796a3378b9b790475f88deba4ff481ecff5a6460efe09bb89bb96001cc6d1eb9f6724bdf31f7f64fd8952b1ddc2
SHA1 hash:	b57b4c8bd303d0779c88c7449ca296efd2ca82db
MD5 hash:	298a7a066f6684d6d0166cbbbfd664a4
humanhash:	cat-seven-fix-chicken
File name:	NL Hybrid.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	440'320 bytes
First seen:	2024-08-04 17:50:08 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f635308d4c84ff7b67cc226030cba013 (1 x RemcosRAT)
ssdeep	6144:lvRscHtVzjwIRFzJZ2p26+jFWXYnj9iT2ebvXmUcCqkmAO2djXH7icD53:lvRs4OIm2hWX4U2ebvRUAd77n3
TLSH	T169949E12B492C032D17212740E29FB7599BCBC212936497B73EA5E5BBE741C1BB36363
TrID	32.2% (.EXE) Win64 Executable (generic) (10523/12/4) 20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 15.4% (.EXE) Win16 NE executable (generic) (5038/12/1) 13.7% (.EXE) Win32 Executable (generic) (4504/4/1) 6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):
dhash icon	c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter	nickkuechel
Tags:	exe RAT remcos RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

385

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

NL Hybrid.exe

Verdict:

Malicious activity

Analysis date:

2024-08-04 17:53:36 UTC

Tags:

rat remcos

Link:

https://app.any.run/tasks/98c096d1-e91c-41a1-93a8-85bf0c0533b6

Note:

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

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66afbf8ab7a04efc7439dec1

Tags:

n/a

Result

Verdict:

Clean

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Creating a file

Creating a window

Connection attempt

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

crypto epmicrosoft_visual_cc fingerprint fingerprint keylogger lolbin microsoft_visual_cc remcos shell32

Link:

https://www.filescan.io/uploads/66afbf875743b16748e7de11/reports/709240c0-2905-442d-9d8c-d9223fc2d42d/overview

Verdict:

Malicious

Labled as:

Dump:Generic.Dacic.A9349469.A

Link:

https://www.hybrid-analysis.com/sample/d4b8014a57142265ac47b3e29f68de51eb145b62ae613f7efb8ff1fe4fb22c8c

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/726e9b3f-597b-43d1-b03f-c3d4aff4c9b1

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1487606

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

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

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Remcos RAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d4b8014a57142265ac47b3e29f68de51eb145b62ae613f7efb8ff1fe4fb22c8c

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/d4b8014a57142265ac47b3e29f68de51eb145b62ae613f7efb8ff1fe4fb22c8c/

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2024-08-04 14:08:42 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

32 of 37 (86.49%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=2s4acssxcqrgllchwprj62g6khvriw3cvzqt67x3r7y74t5sfsga._file

Verdict:

malicious

Label(s):

remcos

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:remotehost discovery

Link:

https://tria.ge/reports/240804-we5smsvhqc/

Behaviour

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

System Location Discovery: System Language Discovery

Malware Config

C2 Extraction:

192.168.1.6:8888

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/ff4cfd0b-af12-45c6-8abd-44960d10c70c

Unpacked files

SH256 hash:

d4b8014a57142265ac47b3e29f68de51eb145b62ae613f7efb8ff1fe4fb22c8c

MD5 hash:

298a7a066f6684d6d0166cbbbfd664a4

SHA1 hash:

b57b4c8bd303d0779c88c7449ca296efd2ca82db

Detections:

win_remcos_auto

win_remcos_w0

malware_windows_remcos_rat

Link:

https://www.unpac.me/results/8cfa5efe-c9f2-491a-bdce-3c1b1451edf5/

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

Rule name:	pe_detect_tls_callbacks Create hunting rule

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

Rule name:	REMCOS_RAT_variants Create hunting rule

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 (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
GDI_PLUS_API	Interfaces with Graphics	gdiplus.dll::GdiplusStartup gdiplus.dll::GdipGetImageEncoders gdiplus.dll::GdipGetImageEncodersSize gdiplus.dll::GdipAlloc
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringW WINMM.dll::mciSendStringA WINMM.dll::PlaySoundW
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AdjustTokenPrivileges
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExA SHELL32.dll::ShellExecuteW
URL_MONIKERS_API	Can Download & Execute components	urlmon.dll::URLDownloadToFileW urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken KERNEL32.dll::CloseHandle WININET.dll::InternetCloseHandle KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::FindFirstVolumeW KERNEL32.dll::FindNextVolumeW KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetDriveTypeA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AllocConsole KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetConsoleOutputCP KERNEL32.dll::SetConsoleTextAttribute KERNEL32.dll::SetStdHandle
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::DeleteFileA KERNEL32.dll::MoveFileExW KERNEL32.dll::MoveFileW
WIN_BASE_USER_API	Retrieves Account Information	ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LookupPrivilegeValueA KERNEL32.dll::QueryDosDeviceW
WIN_CRYPT_API	Uses Windows Crypt API	ADVAPI32.dll::CryptAcquireContextA ADVAPI32.dll::CryptGenRandom
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyA ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegCreateKeyW ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_API	Can Manipulate Windows Services	ADVAPI32.dll::ChangeServiceConfigW ADVAPI32.dll::ControlService ADVAPI32.dll::OpenSCManagerW ADVAPI32.dll::OpenSCManagerA ADVAPI32.dll::OpenServiceW ADVAPI32.dll::QueryServiceConfigW
WIN_USER_API	Performs GUI Actions	USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::OpenClipboard USER32.dll::CreateWindowExA

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