Postsigner[.]exe

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General

Target

Postsigner.exe
Size

817KB
MD5

12e23edf40fff249fcf008756d5fa5cc
SHA1

3ad253454c8ec120078fb276b34de58c47f15107
SHA256

168ee98b47d7033e8429fb86c5e22fd9adcd4e77eb56b086f4863ce376ca5103
SHA512

63cce6effa42395995daffff3995e8a79dd57523786ac04c33c32d2580031c200d72e92b3ea01c8b12755ddad8b24f2bd62b9b248342c0252eb18057829a4596
SSDEEP

24576:Lg/YpbdyVouaS+OQpPDVDzqjIYOk+Lt02:uG5MR+HpPDaIYO9Lt5

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Postsigner.exe

Files

Postsigner.exe
.exe windows:4 windows x86

b34f154ec913d2d2c435cbd644e91687

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

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

kernel32

SetEnvironmentVariableW
SetFileAttributesW
Sleep
GetTickCount
GetFileSize
GetModuleFileNameW
GetCurrentProcess
CopyFileW
SetCurrentDirectoryW
GetFileAttributesW
GetWindowsDirectoryW
GetTempPathW
GetCommandLineW
GetVersion
SetErrorMode
lstrlenW
lstrcpynW
GetDiskFreeSpaceW
ExitProcess
GetShortPathNameW
CreateThread
GetLastError
CreateDirectoryW
CreateProcessW
RemoveDirectoryW
lstrcmpiA
CreateFileW
GetTempFileNameW
WriteFile
lstrcpyA
MoveFileExW
lstrcatW
GetSystemDirectoryW
GetProcAddress
GetModuleHandleA
GetExitCodeProcess
WaitForSingleObject
lstrcmpiW
MoveFileW
GetFullPathNameW
SetFileTime
SearchPathW
CompareFileTime
lstrcmpW
CloseHandle
ExpandEnvironmentStringsW
GlobalFree
GlobalLock
GlobalUnlock
GlobalAlloc
FindFirstFileW
FindNextFileW
DeleteFileW
SetFilePointer
ReadFile
FindClose
lstrlenA
MulDiv
MultiByteToWideChar
WideCharToMultiByte
GetPrivateProfileStringW
WritePrivateProfileStringW
FreeLibrary
LoadLibraryExW
GetModuleHandleW

user32

GetSystemMenu
SetClassLongW
EnableMenuItem
IsWindowEnabled
SetWindowPos
GetSysColor
GetWindowLongW
SetCursor
LoadCursorW
CheckDlgButton
GetMessagePos
LoadBitmapW
CallWindowProcW
IsWindowVisible
CloseClipboard
SetClipboardData
EmptyClipboard
OpenClipboard
ScreenToClient
GetWindowRect
GetDlgItem
GetSystemMetrics
SetDlgItemTextW
GetDlgItemTextW
MessageBoxIndirectW
CharPrevW
CharNextA
wsprintfA
DispatchMessageW
PeekMessageW
ReleaseDC
EnableWindow
InvalidateRect
SendMessageW
DefWindowProcW
BeginPaint
GetClientRect
FillRect
DrawTextW
EndDialog
RegisterClassW
SystemParametersInfoW
CreateWindowExW
GetClassInfoW
DialogBoxParamW
CharNextW
ExitWindowsEx
DestroyWindow
GetDC
SetTimer
SetWindowTextW
LoadImageW
SetForegroundWindow
ShowWindow
IsWindow
SetWindowLongW
FindWindowExW
TrackPopupMenu
AppendMenuW
CreatePopupMenu
EndPaint
CreateDialogParamW
SendMessageTimeoutW
wsprintfW
PostQuitMessage

gdi32

SelectObject
SetBkMode
CreateFontIndirectW
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor

shell32

SHGetSpecialFolderLocation
ShellExecuteExW
SHGetPathFromIDListW
SHBrowseForFolderW
SHGetFileInfoW
SHFileOperationW

advapi32

AdjustTokenPrivileges
RegCreateKeyExW
RegOpenKeyExW
SetFileSecurityW
OpenProcessToken
LookupPrivilegeValueW
RegEnumValueW
RegDeleteKeyW
RegDeleteValueW
RegCloseKey
RegSetValueExW
RegQueryValueExW
RegEnumKeyW

comctl32

ImageList_Create
ImageList_AddMasked
ImageList_Destroy
ord17

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

Sections

.text
Size: 25KB - Virtual size: 25KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 3.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 128KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 150KB - Virtual size: 150KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b34f154ec913d2d2c435cbd644e91687

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

.text Size: 25KB - Virtual size: 25KB

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

.data Size: 1KB - Virtual size: 3.6MB

.ndata Size: - Virtual size: 128KB

.rsrc Size: 150KB - Virtual size: 150KB

.text
Size: 25KB - Virtual size: 25KB

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

.data
Size: 1KB - Virtual size: 3.6MB

.ndata
Size: - Virtual size: 128KB

.rsrc
Size: 150KB - Virtual size: 150KB