remcos | remcos_a[.]exe

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General

Target

remcos_a.exe
Size

469KB
MD5

7243d1b8ee84e48311f0c4d49a8dbc60
SHA1

9cdd860511b83aeea9dacbbcc8caa5d30d1cdf20
SHA256

104e5d4e6d7f404214b3062b42035b5eb64743cd6e6fbc944e4b34fea5dddfc9
SHA512

a787e399e32fd8f2274bd8c8ea4897ee720e45a4413241afe9dbfc524d19d972d6130e890140842a147e90c40708ad1485081a59048f127bcfd813c811fc173c
SSDEEP

12288:wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSnn9:wiLJbpI7I2WhQqZ7n9

Score

10^/10

remcos

Malware Config

Signatures

Remcos family
remcos

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
remcos_a.exe

Files

remcos_a.exe
.exe windows:5 windows x86

5d354883fe6f15fcf48045037a99fb7a

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

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

Sections

.text
Size: 337KB - Virtual size: 336KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 93KB - Virtual size: 92KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 1024B - Virtual size: 560B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 18KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 14KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5d354883fe6f15fcf48045037a99fb7a

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

shell32

shlwapi

winmm

ws2_32

urlmon

gdiplus

wininet

Sections

.text Size: 337KB - Virtual size: 336KB

.rdata Size: 93KB - Virtual size: 92KB

.data Size: 3KB - Virtual size: 23KB

.tls Size: 512B - Virtual size: 9B

.gfids Size: 1024B - Virtual size: 560B

.rsrc Size: 18KB - Virtual size: 18KB

.reloc Size: 14KB - Virtual size: 14KB

.text
Size: 337KB - Virtual size: 336KB

.rdata
Size: 93KB - Virtual size: 92KB

.data
Size: 3KB - Virtual size: 23KB

.tls
Size: 512B - Virtual size: 9B

.gfids
Size: 1024B - Virtual size: 560B

.rsrc
Size: 18KB - Virtual size: 18KB

.reloc
Size: 14KB - Virtual size: 14KB