4[.]exe | Triage

Sharing

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General

Target

4.exe
Size

429KB
MD5

bdd1ef602f41ff2513bd2ffb948a6cc0
SHA1

aa2c782ad8b71cd4fdf8474d43ef4724ea96cc3c
SHA256

36b97c1bf2b8369f8f47b717eb7797a4b6c1ae94abb0e3768be6be1f8928041f
SHA512

0a4ceaffb64bd745c662a9248f7ee8088375e7f6740d12664349fe625d7ed3fd2d7140128f89fbab2cdaca64652567aaf3fdec28ff2d901c7778274278be7b95
SSDEEP

6144:wBlL/HEAmg+3OesbTsQop6QeX9mrKDD2QPiHMAcCmA/q6IGuvIsRo0xPEjaV1Zn:ClEAmD3O0QXrDP2iwyTwsW0F5V1Zn

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
4.exe
unpack001/oftyet.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

4.exe
.exe windows:4 windows x86 arch:x86

b76363e9cb88bf9390860da8e50999d2

Headers

DLL Characteristics

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

GetTickCount
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
SetFileAttributesA
CompareFileTime
SearchPathA
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
GetWindowsDirectoryA
GetTempPathA
Sleep
lstrcmpiA
GetVersion
SetErrorMode
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
GetLastError
CreateDirectoryA
CreateProcessA
RemoveDirectoryA
CreateFileA
GetTempFileNameA
lstrcatA
GetSystemDirectoryA
WaitForSingleObject
SetFileTime
CloseHandle
GlobalFree
lstrcmpA
ExpandEnvironmentStringsA
GetExitCodeProcess
GlobalAlloc
lstrlenA
GetCommandLineA
GetProcAddress
FindFirstFileA
FindNextFileA
DeleteFileA
SetFilePointer
ReadFile
FindClose
GetPrivateProfileStringA
WritePrivateProfileStringA
WriteFile
MulDiv
MultiByteToWideChar
LoadLibraryExA
GetModuleHandleA
FreeLibrary

user32

SetCursor
GetWindowRect
EnableMenuItem
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
EndDialog
ScreenToClient
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetForegroundWindow
GetWindowLongA
RegisterClassA
TrackPopupMenu
AppendMenuA
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
GetDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
ExitWindowsEx
SetTimer
PostQuitMessage
SetWindowLongA
SendMessageTimeoutA
LoadImageA
wsprintfA
GetDlgItem
FindWindowExA
IsWindow
SetClipboardData
EmptyClipboard
OpenClipboard
EndPaint
CreateDialogParamA
DestroyWindow
ShowWindow
SetWindowTextA

gdi32

SelectObject
SetBkMode
CreateFontIndirectA
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor

shell32

SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
SHFileOperationA
ShellExecuteA

advapi32

RegDeleteValueA
SetFileSecurityA
RegOpenKeyExA
RegDeleteKeyA
RegEnumValueA
RegCloseKey
RegCreateKeyExA
RegSetValueExA
RegQueryValueExA
RegEnumKeyA

comctl32

ImageList_AddMasked
ImageList_Destroy
ImageList_Create
ord17

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

Sections

.text
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 108KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 32KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 68KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
kmyrmhqkm.z
oftyet.exe
.exe windows:6 windows x86 arch:x86

9c1d8f119e0f17a3012d347bc7e0a743

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

imm32

ImmCreateIMCC
ImmDestroyIMCC
ImmGetCompositionFontW
ImmGetCompositionStringW
ImmGetGuideLineW
ImmGetIMCCSize
ImmInstallIMEA
ImmShowSoftKeyboard

shlwapi

PathCreateFromUrlA
PathFindOnPathA
PathRelativePathToW
PathRemoveFileSpecW
SHDeleteEmptyKeyA
SHQueryValueExW
SHRegSetUSValueA

urlmon

CoInternetQueryInfo
CopyBindInfo
CreateAsyncBindCtx
HlinkSimpleNavigateToString
IsLoggingEnabledA
URLDownloadW

msacm32

acmDriverClose
acmFormatDetailsW
acmFormatTagDetailsW
acmFormatTagEnumA

rtutils

LogErrorA
MprSetupProtocolEnum
RouterLogDeregisterA
TraceDumpExW
TracePrintfExA
TraceVprintfExA

avifil32

AVIStreamBeginStreaming
EditStreamSetInfoW

msvfw32

DrawDibDraw
ICImageCompress

winmm

midiInGetErrorTextW
midiOutMessage
mmioAdvance
waveInGetNumDevs

oleaut32

VarBstrFromI1
VarCyFix
VarCyFromI1
VarCyFromStr
VarI2FromI4
VarUI4FromR8

wsnmp32

ord401
ord602
ord106

ole32

CoInstall

kernel32

CloseHandle
CompareStringW
CreateFileW
DecodePointer
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetConsoleWindow
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetShortPathNameW
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RaiseException
RtlUnwind
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualProtect
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW
lstrcpyW
lstrlenW

user32

ShowWindow

Sections

.text
Size: 78KB - Virtual size: 77KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 28KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.00cfg
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b76363e9cb88bf9390860da8e50999d2

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

.text Size: 23KB - Virtual size: 22KB

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

.data Size: 1KB - Virtual size: 108KB

.ndata Size: - Virtual size: 32KB

.rsrc Size: 68KB - Virtual size: 68KB

9c1d8f119e0f17a3012d347bc7e0a743

Headers

DLL Characteristics

File Characteristics

Imports

imm32

shlwapi

urlmon

msacm32

rtutils

avifil32

msvfw32

winmm

oleaut32

wsnmp32

ole32

kernel32

user32

Sections

.text Size: 78KB - Virtual size: 77KB

.rdata Size: 28KB - Virtual size: 28KB

.data Size: 8KB - Virtual size: 10KB

.00cfg Size: 512B - Virtual size: 8B

.rsrc Size: 512B - Virtual size: 16B

.text
Size: 23KB - Virtual size: 22KB

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

.data
Size: 1KB - Virtual size: 108KB

.ndata
Size: - Virtual size: 32KB

.rsrc
Size: 68KB - Virtual size: 68KB

.text
Size: 78KB - Virtual size: 77KB

.rdata
Size: 28KB - Virtual size: 28KB

.data
Size: 8KB - Virtual size: 10KB

.00cfg
Size: 512B - Virtual size: 8B

.rsrc
Size: 512B - Virtual size: 16B