vbsim[.]zip | Triage

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General

Target

vbsim.zip
Size

171KB
MD5

6e5c2c4bdcf4240560ec539da1c0cb2c
SHA1

117657748098eb69f20a0cecac88057d3689913f
SHA256

fe5ceec2d8ed38b14d72853efe4ea96ee679d36a078e6282386916bd4e2fd937
SHA512

e6eee47e0cba466c5bb0aca8a59a93c1d10fbd2ac5ba570c10d616d6e5a4ca24419c7f0ddbe89ec897645d8cc46e0445dd77b8a95d9a222a1015630dc04f641b
SSDEEP

3072:FTJfSu6+zAd2pdZKyzrLok6VQVZTLcylylj0MovNLh7Z5SoBIzAZjEWMPE4:nW4/ZKIrLolm8syd8Lh7Z5Bbye4

Score

5^/10

pdf

Malware Config

Signatures

Malformed data in PDF
A PDF can contain malformed data to evade detection
pdf

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Vbsim.exe

Files

vbsim.zip
.zip
Readme.txt
Vbsim.exe
.exe windows:4 windows x86 arch:x86

ba231248d1fe852f767c0117fa48293f

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

kernel32

HeapAlloc
HeapFree
RaiseException
TerminateProcess
HeapSize
HeapReAlloc
GetACP
GetCommandLineA
ExitProcess
GetLocalTime
GetStartupInfoA
GetEnvironmentStringsW
SetHandleCount
GetStdHandle
GetFileType
GetEnvironmentVariableA
FreeEnvironmentStringsA
GetTimeZoneInformation
GetSystemTime
UnhandledExceptionFilter
GetEnvironmentStrings
SetUnhandledExceptionFilter
VirtualAlloc
IsBadWritePtr
LCMapStringA
FreeEnvironmentStringsW
GetVersionExA
GetCurrentProcess
IsBadReadPtr
IsBadCodePtr
SetStdHandle
CompareStringA
RtlUnwind
SetEnvironmentVariableA
FormatMessageA
GetFileTime
GetFileSize
GetFileAttributesA
GetTickCount
FileTimeToLocalFileTime
FileTimeToSystemTime
GetFullPathNameA
GetVolumeInformationA
FindFirstFileA
FindClose
SetEndOfFile
UnlockFile
LockFile
FlushFileBuffers
SetFilePointer
HeapCreate
HeapDestroy
CreateFileA
GlobalGetAtomNameA
lstrcmpiA
GlobalAddAtomA
GlobalFindAtomA
GlobalDeleteAtom
lstrcpyA
GlobalFree
LockResource
FindResourceA
LoadResource
GlobalLock
GlobalUnlock
MulDiv
GetModuleHandleA
GetProcAddress
WriteFile
ReadFile
LCMapStringW
DuplicateHandle
SetErrorMode
GetProfileStringA
GetThreadLocale
WritePrivateProfileStringA
GetOEMCP
GetCPInfo
GetProcessVersion
TlsGetValue
LocalReAlloc
TlsSetValue
GlobalReAlloc
TlsFree
GlobalHandle
TlsAlloc
LocalFree
LocalAlloc
SizeofResource
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSection
GlobalFlags
GetLastError
MultiByteToWideChar
WideCharToMultiByte
lstrlenA
InterlockedIncrement
InterlockedDecrement
CloseHandle
GetModuleFileNameA
GlobalAlloc
lstrcmpA
GetCurrentThread
lstrcpynA
LoadLibraryA
FreeLibrary
GetVersion
lstrcatA
GetCurrentThreadId
GetStringTypeA
GetStringTypeW
VirtualFree
CompareStringW
SetLastError

user32

SetRect
GetNextDlgGroupItem
MessageBeep
CharUpperA
RegisterClipboardFormatA
PostThreadMessageA
GetSysColorBrush
LoadCursorA
GetDesktopWindow
PtInRect
GetClassNameA
DestroyMenu
LoadStringA
MapDialogRect
SetWindowContextHelpId
GetMessageA
TranslateMessage
ValidateRect
GetCursorPos
SetCursor
PostQuitMessage
InflateRect
wvsprintfA
GetMenuCheckMarkDimensions
LoadBitmapA
GetMenuState
ModifyMenuA
SetMenuItemBitmaps
CheckMenuItem
EnableMenuItem
ShowWindow
MoveWindow
IsDialogMessageA
PostMessageA
CharNextA
CopyAcceleratorTableA
MapWindowPoints
GetSysColor
PeekMessageA
DispatchMessageA
GetFocus
SetFocus
AdjustWindowRectEx
IsWindowVisible
GetTopWindow
MessageBoxA
IsChild
GetCapture
WinHelpA
wsprintfA
GetClassInfoA
RegisterClassA
GetMenu
GetMenuItemCount
GetSubMenu
GetMenuItemID
GetWindowTextLengthA
GetWindowTextA
GetDlgCtrlID
GetKeyState
DefWindowProcA
CreateWindowExA
SetWindowsHookExA
CallNextHookEx
GetClassLongA
SetPropA
UnhookWindowsHookEx
GetPropA
CallWindowProcA
RemovePropA
GetMessageTime
GetMessagePos
GetLastActivePopup
GetForegroundWindow
SetForegroundWindow
GetWindow
SetWindowLongA
SetWindowPos
RegisterWindowMessageA
OffsetRect
IntersectRect
SystemParametersInfoA
GetWindowPlacement
GetWindowRect
GetNextDlgTabItem
SendDlgItemMessageA
UpdateWindow
EndDialog
GetActiveWindow
SetActiveWindow
IsWindow
CreateDialogIndirectParamA
DestroyWindow
GetParent
GetWindowLongA
GetDlgItem
IsWindowEnabled
EndPaint
BeginPaint
GetWindowDC
ReleaseDC
GetDC
ClientToScreen
ScreenToClient
InvalidateRect
IsIconic
GetSystemMetrics
GetClientRect
DrawIcon
GetSystemMenu
AppendMenuA
SendMessageA
SetTimer
LoadIconA
CopyRect
EnableWindow
GrayStringA
DrawTextA
TabbedTextOutA
SetWindowTextA
UnregisterClassA
HideCaret
ShowCaret
ExcludeUpdateRgn
DrawFocusRect
DefDlgProcA
IsWindowUnicode

gdi32

DeleteObject
GetDeviceCaps
GetViewportExtEx
GetWindowExtEx
CreateSolidBrush
CreateBitmap
GetMapMode
PatBlt
CreateFontIndirectA
DPtoLP
GetTextColor
GetBkColor
LPtoDP
CreateDIBitmap
GetTextExtentPointA
IntersectClipRect
SetWindowExtEx
ScaleViewportExtEx
SetViewportExtEx
OffsetViewportOrgEx
SetViewportOrgEx
SetMapMode
SetTextColor
SetBkMode
SetBkColor
GetStockObject
SelectObject
RestoreDC
SaveDC
DeleteDC
GetObjectA
SetPixel
Escape
ExtTextOutA
TextOutA
RectVisible
PtVisible
BitBlt
CreateCompatibleBitmap
GetClipBox
ScaleWindowExtEx
CreateCompatibleDC

comdlg32

GetFileTitleA

winspool.drv

ClosePrinter
DocumentPropertiesA
OpenPrinterA

advapi32

RegCloseKey
RegCreateKeyExA
RegOpenKeyExA
RegSetValueExA

comctl32

ord17

oledlg

ord8

ole32

CoFreeUnusedLibraries
OleUninitialize
OleInitialize
CreateILockBytesOnHGlobal
StgCreateDocfileOnILockBytes
StgOpenStorageOnILockBytes
CoGetClassObject
CLSIDFromString
CLSIDFromProgID
CoRegisterMessageFilter
CoTaskMemFree
CoRevokeClassObject
OleFlushClipboard
OleIsCurrentClipboard
CoTaskMemAlloc

olepro32

ord253

oleaut32

SysStringLen
SysFreeString
SysAllocStringByteLen
VariantChangeType
SysAllocString
VariantCopy
VariantTimeToSystemTime
VariantClear
SysAllocStringLen

Sections

.text
Size: 144KB - Virtual size: 143KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 36KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 33KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 20KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Vbsim.pdf
.pdf

Sharing

General

Malware Config

Signatures

Files

ba231248d1fe852f767c0117fa48293f

Headers

File Characteristics

Imports

kernel32

user32

gdi32

comdlg32

winspool.drv

advapi32

comctl32

oledlg

ole32

olepro32

oleaut32

Sections

.text Size: 144KB - Virtual size: 143KB

.rdata Size: 36KB - Virtual size: 35KB

.data Size: 20KB - Virtual size: 33KB

.rsrc Size: 20KB - Virtual size: 19KB

.text
Size: 144KB - Virtual size: 143KB

.rdata
Size: 36KB - Virtual size: 35KB

.data
Size: 20KB - Virtual size: 33KB

.rsrc
Size: 20KB - Virtual size: 19KB