MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441. 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 21 File information Comments

SHA256 hash:	8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441
SHA3-384 hash:	424f006c92531d8adb764ec87d8c3700de27239737e1bdcaf0c4e9ad15c4f969768f7a6decee9954bf7fc4001bb13cf7
SHA1 hash:	9897615dbed3332a5be2f7e14b201d0484ea0eda
MD5 hash:	9ee69af702ed326bf48d274138c430b1
humanhash:	mirror-texas-eleven-four
File name:	2025-07-25_9ee69af702ed326bf48d274138c430b1_black-basta_elex_luca-stealer_mespinoza_remcos
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	480'768 bytes
First seen:	2025-07-26 01:04:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	5d354883fe6f15fcf48045037a99fb7a (118 x RemcosRAT)
ssdeep	12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSEn9:uiLJbpI7I2WhQqZ7E9
Threatray	4'110 similar samples on MalwareBazaar
TLSH	T1A1A4AE02BAD2C072D57161344D2AE735DABDBD202835997BB3E61D5BFD30180A73A7B2
TrID	32.2% (.EXE) Win64 Executable (generic) (10522/11/4) 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)
Magika	pebin
dhash icon	c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter	nickkuechel
Tags:	exe R3zN0v remcos RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

528

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

2025-07-25_9ee69af702ed326bf48d274138c430b1_black-basta_elex_luca-stealer_mespinoza_remcos.exe

Verdict:

Malicious activity

Analysis date:

2025-07-26 01:09:29 UTC

Tags:

remcos rat

Link:

https://app.any.run/tasks/3bfbe679-a8be-4927-a9e5-85e164f454a5

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/16909/

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68842993af3050dc8d30fb67

Tags:

downloader dropper remcos virus

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file in the %AppData% subdirectories

Enabling the 'hidden' option for recently created files

Creating a file in the %temp% directory

Creating a process from a recently created file

Creating a process with a hidden window

Creating a window

Running batch commands

Setting a keyboard event handler

Launching a process

Connection attempt to an infection source

Creating a file

Sending a custom TCP request

Query of malicious DNS domain

Enabling autorun

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug cmd config-extracted crypto evasive eventvwr fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos windows

Link:

https://www.filescan.io/uploads/6884298b13488cfd44d90a2c/reports/2a34aa8c-361b-48e2-b63f-5cadae75b1aa/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441

Malware family:

REMCOS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/a8836262-b976-47a7-a055-9113590300ba

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

Executable PDB Path PE (Portable Executable) Win 32 Exe x86

Link:

https://app.malva.re/file/9ee69af702ed326bf48d274138c430b1

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441/

Verdict:

Malicious

Threat:

Backdoor.Win32.Remcos

Link:

https://tip.neiki.dev/file/8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2025-07-22 19:26:00 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 23 (95.65%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=rly3lwplbrmskae7a6bedbgv27q7j4bpeuytlvr6kfmq5bzgsraq._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

754da186c4e37abfd6f3a1c6108f567f4c05dd1082a8b139ec7745b108c377b8

RemcosRAT

ac4e313d582ab153491aa677a62883b70a2e8a907a009ace26e906712dda5e97

RemcosRAT

b254541038b979c1c21f489e21bc15f594492aff656bc908aa54033bafb05775

RemcosRAT

c5669d80feebd4e30450274673c686811134d9d6893166b05524a9d7aa9e315e

RemcosRAT

c7e7f3d4a0178d523a0e91e081878146f35eb074bb15239bf3e1cdc9f4f6de38

RemcosRAT

d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff

RemcosRAT

error

RemcosRAT

+ 4'100 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:r3zn0v att&ck discovery persistence rat

Link:

https://tria.ge/reports/250726-be2qrsbr4z/

Behaviour

Modifies registry class

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Checks computer location settings

Deletes itself

Executes dropped EXE

Adds policy Run key to start application

Remcos

Remcos family

Malware Config

C2 Extraction:

log-bi.gl.at.ply.gg:45053

Verdict:

Malicious

Tags:

rat remcos Win.Trojan.Remcos-9841897-0

YARA:

malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos

Link:

https://app.threat.zone/submission/475b6d7e-93de-4030-a394-02ab633a1474

Unpacked files

SH256 hash:

8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441

MD5 hash:

9ee69af702ed326bf48d274138c430b1

SHA1 hash:

9897615dbed3332a5be2f7e14b201d0484ea0eda

Detections:

win_remcos_w0

win_remcos_auto

Remcos

Link:

https://www.unpac.me/results/6e766879-1372-4205-a347-31c647a8bb5d/

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/8af1b5d9eb0c5925009f07824184d5d7e1f4f02f253135d63e51590e87269441

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:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

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

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer Create hunting rule
Author:	ditekSHen
Description:	detects Windows exceutables potentially bypassing UAC using eventvwr.exe

Rule name:	pe_detect_tls_callbacks 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:	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/16909/

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::mciSendStringA WINMM.dll::mciSendStringW WINMM.dll::PlaySoundW WINMM.dll::waveInAddBuffer WINMM.dll::waveInClose WINMM.dll::waveInOpen
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::CreateProcessW KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle WININET.dll::InternetCloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetDriveTypeA KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AllocConsole KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW 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
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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