MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fea7c0766ca58958e866f5a93a15da318cbe3bea7759a542c0e24949ab13945c. 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: 20


Intelligence 20 IOCs YARA 17 File information Comments

SHA256 hash: fea7c0766ca58958e866f5a93a15da318cbe3bea7759a542c0e24949ab13945c
SHA3-384 hash: cca3eafb3ce8fc42d73527c42a223c724fdaf48ade875ec1d0110c2c3556ea7aea765b233ee19efbbad3a965947bd81c
SHA1 hash: c7ff2489c8a1d30501569c87303431b49d239d30
MD5 hash: 7bcf761c67490815792215ad841806db
humanhash: winter-black-colorado-gee
File name:GTBB.exe
Download: download sample
Signature RemcosRAT
File size:94'208 bytes
First seen:2025-08-08 11:15:00 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d3a62971944197f0701c7049a9c739d1 (60 x RemcosRAT)
ssdeep 1536:YhhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP6hrQ:+hzYTGWVvJ8f2v1TbPzuMsIFSHNThy+p
Threatray 400 similar samples on MalwareBazaar
TLSH T19E93D813FA4AD0B2E46591F145426F32CEBCBC3636492173D38FCA41AD79892D416EAE
TrID 38.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
20.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
13.0% (.EXE) Win64 Executable (generic) (10522/11/4)
8.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
dhash icon 989894b49c9494f0 (43 x RemcosRAT)
Reporter Joker
Tags:exe remcos RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
507
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
_fea7c0766ca58958e866f5a93a15da318cbe3bea7759a542c0e24949ab13945c.exe
Verdict:
Malicious activity
Analysis date:
2025-08-08 11:16:23 UTC
Tags:
remcos rat susp-powershell

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
remcos emotet
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
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Setting a keyboard event handler
Connection attempt
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm cmd config-extracted evasive evasive eventvwr explorer fingerprint keylogger lolbin microsoft_visual_cc rat rat remcos remcos windows
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) Win 32 Exe x86
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-08-08 11:15:35 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
37 of 38 (97.37%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:host discovery persistence rat
Behaviour
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Adds Run key to start application
Modifies WinLogon
Checks computer location settings
Executes dropped EXE
Adds policy Run key to start application
Remcos
Remcos family
Modifies WinLogon for persistence
Malware Config
C2 Extraction:
198.37.105.154:9036
Verdict:
Malicious
Tags:
rat remcos trojan Win.Malware.Azden-7587127-0
YARA:
malware_windows_remcos_rat malware_Remcos_strings REMCOS_RAT_variants remcos_rat Remcos_Payload Remcos JPCERTCC_Remcos_1 RAT_remcos_strings Windows_Generic_Threat_994f2330
Unpacked files
SH256 hash:
fea7c0766ca58958e866f5a93a15da318cbe3bea7759a542c0e24949ab13945c
MD5 hash:
7bcf761c67490815792215ad841806db
SHA1 hash:
c7ff2489c8a1d30501569c87303431b49d239d30
Detections:
win_remcos_g0 win_remcos_auto Remcos
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:CMD_Ping_Localhost
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Remcos_strings
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:RAT_remcos_strings
Author:0x0d4y
Description:This rule detects the remcos through your specific strings.
Reference:Internal Research
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Generic_Threat_994f2330
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::waveInAddBuffer
WINMM.dll::waveInClose
WINMM.dll::waveInOpen
WINMM.dll::waveInPrepareHeader
WINMM.dll::waveInStart
WINMM.dll::waveInStop
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::ShellExecuteExA
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeA
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WinExec
KERNEL32.dll::AllocConsole
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileMappingA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryInfoKeyA
ADVAPI32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowA
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExA

Comments