remcos | 215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd[.]exe

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General

Target
215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd.exe
Size 469KB
Sample240511-bhvrmace21
SHA256 215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd
MD5 27bb3968cc18fb0df5b14e6d1b805552
SHA1 8f44161a7c4e45422a5d179fbd1d1a81657d828c
SHA512 c470ab75ae46a7161886b8e334143d373385efeb63afcb6f80317bcc0ed989bd3fbc97e87287a0aed8a4661b72261e1ceb94a2be263f25f00c935bad56bafc5d
SSDEEP 12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSFn9:uiLJbpI7I2WhQqZ7F9
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nuevos remcos

Malware Config

Extracted

Family

remcos

Botnet

Nuevos

nuevosremcs.duckdns.org:9090

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
notepads.exe
copy_folder
data
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
notas
mouse_option
false
mutex
Rmc-WRNU47
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
system32
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos family
remcos

detects Windows exceutables potentially bypassing UAC using eventvwr.exe 1 IoCs

resource	yara_rule
sample	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd.exe

File Explorer

215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd.exe

.exe 469KB

215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd.exe

IMPHASH 5d354883fe6f15fcf48045037a99fb7a
SHA256 215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd
MD5 27bb3968cc18fb0df5b14e6d1b805552
SHA1 8f44161a7c4e45422a5d179fbd1d1a81657d828c
SHA512 c470ab75ae46a7161886b8e334143d373385efeb63afcb6f80317bcc0ed989bd3fbc97e87287a0aed8a4661b72261e1ceb94a2be263f25f00c935bad56bafc5d
SSDEEP 12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSFn9:uiLJbpI7I2WhQqZ7F9
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

206756

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

kernel32

CopyFileW CreateMutexA GetLocaleInfoA CreateToolhelp32Snapshot OpenMutexA Process32NextW Process32FirstW VirtualProtect SetLastError VirtualFree VirtualAlloc GetNativeSystemInfo HeapAlloc GetProcessHeap FreeLibrary IsBadReadPtr GetTempPathW OpenProcess lstrcatW GetCurrentProcessId GetTempFileNameW GetCurrentProcess GetSystemDirectoryA GlobalAlloc GlobalLock GetTickCount GlobalUnlock WriteProcessMemory ResumeThread GetThreadContext ReadProcessMemory CreateProcessW SetThreadContext LocalAlloc GlobalFree MulDiv SizeofResource SetFilePointer FindResourceA LockResource LoadResource LocalFree FormatMessageA AllocConsole GetModuleFileNameA lstrcpynA QueryPerformanceFrequency GetLongPathNameW EnterCriticalSection LeaveCriticalSection InitializeCriticalSection DeleteCriticalSection HeapSize WriteConsoleW SetStdHandle SetEnvironmentVariableW SetEnvironmentVariableA FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineW GetCommandLineA GetOEMCP IsValidCodePage FindFirstFileExA ReadConsoleW GetConsoleMode GetConsoleCP FlushFileBuffers GetFileType GetTimeZoneInformation EnumSystemLocalesW GetUserDefaultLCID IsValidLocale GetTimeFormatW GetDateFormatW HeapReAlloc GetACP GetStdHandle GetModuleHandleExW MoveFileExW RtlUnwind RaiseException LoadLibraryExW GetCPInfo GetStringTypeW GetLocaleInfoW LCMapStringW CompareStringW TlsFree TlsSetValue ExpandEnvironmentStringsA FindNextFileA FindFirstFileA GetFileSize TerminateThread GetLastError SetFileAttributesW GetModuleHandleA RemoveDirectoryW MoveFileW CreateDirectoryW SetFilePointerEx GetLogicalDriveStringsA DeleteFileW DeleteFileA GetFileAttributesW FindClose lstrlenA GetDriveTypeA FindNextFileW GetFileSizeEx FindFirstFileW ExitProcess GetProcAddress LoadLibraryA CreateProcessA PeekNamedPipe CreatePipe TerminateProcess ReadFile HeapFree HeapCreate CreateEventA GetLocalTime CreateThread SetEvent CreateEventW WaitForSingleObject Sleep GetModuleFileNameW CloseHandle ExitThread CreateFileW WriteFile QueryPerformanceCounter TlsGetValue TlsAlloc InitializeCriticalSectionAndSpinCount MultiByteToWideChar DecodePointer EncodePointer WideCharToMultiByte InitializeSListHead GetSystemTimeAsFileTime GetCurrentThreadId IsProcessorFeaturePresent GetStartupInfoW SetUnhandledExceptionFilter UnhandledExceptionFilter IsDebuggerPresent GetModuleHandleW WaitForSingleObjectEx ResetEvent SetEndOfFile

user32

CallNextHookEx GetKeyboardLayoutNameA GetKeyState GetWindowTextLengthW GetWindowThreadProcessId SetForegroundWindow SetClipboardData EnumWindows ExitWindowsEx TranslateMessage DispatchMessageA GetMessageA GetWindowTextW wsprintfW GetClipboardData UnhookWindowsHookEx GetForegroundWindow ToUnicodeEx GetKeyboardLayout SetWindowsHookExA CloseClipboard OpenClipboard GetKeyboardState DrawIcon GetSystemMetrics GetIconInfo SystemParametersInfoW GetCursorPos RegisterClassExA AppendMenuA mouse_event CreateWindowExA DefWindowProcA TrackPopupMenu CreatePopupMenu EnumDisplaySettingsW SendInput CloseWindow EmptyClipboard ShowWindow SetWindowTextW MessageBoxW IsWindowVisible

gdi32

CreateCompatibleBitmap SelectObject CreateCompatibleDC StretchBlt GetDIBits DeleteDC DeleteObject CreateDCA GetObjectA

advapi32

CryptAcquireContextA CryptGenRandom CryptReleaseContext GetUserNameW RegEnumKeyExA QueryServiceStatus CloseServiceHandle OpenSCManagerW OpenSCManagerA ControlService StartServiceW QueryServiceConfigW ChangeServiceConfigW OpenServiceW EnumServicesStatusW AdjustTokenPrivileges LookupPrivilegeValueA OpenProcessToken RegCreateKeyA RegCloseKey RegQueryInfoKeyW RegQueryValueExA RegCreateKeyExW RegEnumKeyExW RegSetValueExW RegSetValueExA RegOpenKeyExA RegOpenKeyExW RegCreateKeyW RegDeleteValueW RegEnumValueW RegQueryValueExW RegDeleteKeyA

shell32

ShellExecuteExA Shell_NotifyIconA ExtractIconA ShellExecuteW

shlwapi

StrToIntA PathFileExistsW PathFileExistsA

winmm

waveInPrepareHeader waveInStop waveInUnprepareHeader mciSendStringA PlaySoundW waveInOpen waveInStart waveInAddBuffer waveInClose mciSendStringW

ws2_32

WSAGetLastError recv connect socket send WSAStartup closesocket inet_ntoa gethostbyname WSASetLastError inet_addr gethostbyaddr getservbyport ntohs getservbyname htons htonl

urlmon

URLDownloadToFileW URLOpenBlockingStreamW

gdiplus

GdiplusStartup GdipGetImageEncoders GdipCloneImage GdipAlloc GdipDisposeImage GdipFree GdipGetImageEncodersSize GdipSaveImageToStream GdipLoadImageFromStream

wininet

InternetOpenUrlW InternetCloseHandle InternetReadFile InternetOpenW

Name

.text

Size

337KB

Virtual Size

336KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

93KB

Virtual Size

92KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

23KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.tls

Size

512B

Virtual Size

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.gfids

Size

1024B

Virtual Size

560B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

19KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

14KB

Virtual Size

14KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

File Explorer

215292f9d78604f7d15cae869415f0a0269b7dd43b4986cad6a7d1b0c6cdb7dd.exe

kernel32

user32

gdi32

advapi32

shell32

shlwapi

winmm

ws2_32

urlmon

gdiplus

wininet

generic