SERVER-SMTP[.]exe

Sharing

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General

Target

SERVER-SMTP.exe
Size

151KB
MD5

f120d35bb8d2e15fb6d4f1c1297a95cc
SHA1

50d336fffcc86452257ddc81973a1564d08e7bdf
SHA256

5381a71d0e0447c192527f8e536e03a0fb860757d53de9f42dd600604c3ffbf5
SHA512

a03833edfee2f67a9cbe1956f4706daa445dd39af948dff530bd313cee0db0eefc43c99255de1d03a54051a6edf25ac5e7d0ae7fd7b61837dfaed6af4cedce14
SSDEEP

1536:h7f9h0UPJP/CpICdikMLMLv5PFNg1qrX+VIOlnToIfugIxthKOR:VliUPXC8k1nJrX+fNTBf+jhT

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SERVER-SMTP.exe

Files

SERVER-SMTP.exe
.exe windows:4 windows x86 arch:x86

5877688b4859ffd051f6be3b8e0cd533

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

msvcrt

memset
wcsncmp
memmove
wcsncpy
wcsstr
_wcsnicmp
_wcsdup
free
_wcsicmp
wcslen
wcscpy
wcscmp
memcpy
tolower
wcscat
malloc

kernel32

GetModuleHandleW
HeapCreate
GetStdHandle
HeapDestroy
ExitProcess
WriteFile
GetTempFileNameW
LoadLibraryExW
EnumResourceTypesW
FreeLibrary
RemoveDirectoryW
GetExitCodeProcess
EnumResourceNamesW
GetCommandLineW
LoadResource
SizeofResource
FreeResource
FindResourceW
GetNativeSystemInfo
GetShortPathNameW
GetWindowsDirectoryW
GetSystemDirectoryW
EnterCriticalSection
CloseHandle
LeaveCriticalSection
InitializeCriticalSection
WaitForSingleObject
TerminateThread
CreateThread
Sleep
GetProcAddress
GetVersionExW
WideCharToMultiByte
HeapAlloc
HeapFree
LoadLibraryW
GetCurrentProcessId
GetCurrentThreadId
GetModuleFileNameW
GetEnvironmentVariableW
SetEnvironmentVariableW
GetCurrentProcess
TerminateProcess
SetUnhandledExceptionFilter
HeapSize
MultiByteToWideChar
CreateDirectoryW
SetFileAttributesW
GetTempPathW
DeleteFileW
GetCurrentDirectoryW
SetCurrentDirectoryW
CreateFileW
SetFilePointer
TlsFree
TlsGetValue
TlsSetValue
TlsAlloc
HeapReAlloc
DeleteCriticalSection
InterlockedCompareExchange
InterlockedExchange
GetLastError
SetLastError
UnregisterWait
GetCurrentThread
DuplicateHandle
RegisterWaitForSingleObject

user32

CharUpperW
CharLowerW
MessageBoxW
DefWindowProcW
DestroyWindow
GetWindowLongW
GetWindowTextLengthW
GetWindowTextW
UnregisterClassW
LoadIconW
LoadCursorW
RegisterClassExW
IsWindowEnabled
EnableWindow
GetSystemMetrics
CreateWindowExW
SetWindowLongW
SendMessageW
SetFocus
CreateAcceleratorTableW
SetForegroundWindow
BringWindowToTop
GetMessageW
TranslateAcceleratorW
TranslateMessage
DispatchMessageW
DestroyAcceleratorTable
PostMessageW
GetForegroundWindow
GetWindowThreadProcessId
IsWindowVisible
EnumWindows
SetWindowPos

gdi32

GetStockObject

comctl32

InitCommonControlsEx

shell32

ShellExecuteExW
SHGetFolderLocation
SHGetPathFromIDListW

winmm

timeBeginPeriod

ole32

CoInitialize
CoTaskMemFree

shlwapi

PathAddBackslashW
PathRenameExtensionW
PathQuoteSpacesW
PathRemoveArgsW
PathRemoveBackslashW

Sections

.code
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 52KB - Virtual size: 51KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 13KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 66KB - Virtual size: 66KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5877688b4859ffd051f6be3b8e0cd533

Headers

File Characteristics

Imports

msvcrt

kernel32

user32

gdi32

comctl32

shell32

winmm

ole32

shlwapi

Sections

.code Size: 14KB - Virtual size: 13KB

.text Size: 52KB - Virtual size: 51KB

.rdata Size: 13KB - Virtual size: 12KB

.data Size: 4KB - Virtual size: 5KB

.rsrc Size: 66KB - Virtual size: 66KB

.code
Size: 14KB - Virtual size: 13KB

.text
Size: 52KB - Virtual size: 51KB

.rdata
Size: 13KB - Virtual size: 12KB

.data
Size: 4KB - Virtual size: 5KB

.rsrc
Size: 66KB - Virtual size: 66KB