blankgrabber | lGxCmyo[.]exe

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General

Target

lGxCmyo.exe
Size

6.3MB
MD5

8b566fdf77f5acf29c6c5bd2d52eacab
SHA1

19842502be7711f7e4d303c71184dc0b2ac05798
SHA256

4dcab4dff066a113b9f2cea94b1b21837cf92f0874eb3c4fc166824546ff5271
SHA512

d3e12e3a8f5593a8e7eb7c78c0b27e1a2b9ba229a2ab4ff14675589617a43185a9bea8ffa4b26586e9744b39b657d143645f76bcac21f20fbab45509998c1ff6
SSDEEP

98304:ijcIruEVC6IEq9Vyn//5gcllxt3bzBoUv6aQ/BDyZeut1BDjRhh:WDCjTA//5gcllfrNJ6jBGwutlhh

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/��5�.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

lGxCmyo.exe
.exe windows:6 windows x86 arch:x86

366fdad9fcfadbb8d97a02e946650cdf

Code Sign

33:00:00:04:a7:04:3e:e4:22:c8:34:fa:fc:00:00:00:00:04:a7
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12/09/2024, 20:04

Not After

11/09/2025, 20:04

Subject

CN=Microsoft Windows,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

dd:47:db:a7:98:0f:c0:2b:84:f6:0b:91:7d:42:57:9f:3d:dd:1c:06:d5:08:89:03:68:8c:95:e1:96:84:c1:fb
Signer

Actual PE Digest

dd:47:db:a7:98:0f:c0:2b:84:f6:0b:91:7d:42:57:9f:3d:dd:1c:06:d5:08:89:03:68:8c:95:e1:96:84:c1:fb

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

user32

CreateWindowExW
ShutdownBlockReasonCreate
MsgWaitForMultipleObjects
ShowWindow
DestroyWindow
RegisterClassW
DefWindowProcW
PeekMessageW
DispatchMessageW
TranslateMessage
PostMessageW
GetMessageW
MessageBoxW
MessageBoxA
SystemParametersInfoW
DestroyIcon
SetWindowLongW
GetWindowLongW
GetClientRect
InvalidateRect
ReleaseDC
GetDC
DrawTextW
GetDialogBaseUnits
EndDialog
DialogBoxIndirectParamW
MoveWindow
SendMessageW

comctl32

ord380

kernel32

GetACP
IsValidCodePage
GetStringTypeW
GetFileAttributesExW
SetEnvironmentVariableW
FlushFileBuffers
GetCurrentDirectoryW
LCMapStringW
CompareStringW
HeapAlloc
GetOEMCP
GetCPInfo
GetModuleHandleW
MulDiv
FormatMessageW
GetLastError
GetModuleFileNameW
LoadLibraryExW
SetDllDirectoryW
CreateSymbolicLinkW
GetProcAddress
GetEnvironmentStringsW
GetCommandLineW
GetEnvironmentVariableW
ExpandEnvironmentStringsW
DeleteFileW
FindClose
FindFirstFileW
FindNextFileW
GetDriveTypeW
RemoveDirectoryW
GetTempPathW
CloseHandle
QueryPerformanceCounter
QueryPerformanceFrequency
WaitForSingleObject
Sleep
GetCurrentProcess
TerminateProcess
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LocalFree
SetConsoleCtrlHandler
K32EnumProcessModules
K32GetModuleFileNameExW
CreateFileW
FindFirstFileExW
GetFinalPathNameByHandleW
MultiByteToWideChar
WideCharToMultiByte
GetFileSizeEx
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize
DecodePointer
HeapReAlloc
WriteConsoleW
SetEndOfFile
CreateDirectoryW
IsProcessorFeaturePresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
RtlUnwind
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
RaiseException
GetCommandLineA
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ReadFile
GetFullPathNameW
SetStdHandle
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
HeapFree
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleOutputCP

advapi32

OpenProcessToken
GetTokenInformation
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertSidToStringSidW

gdi32

SelectObject
DeleteObject
CreateFontIndirectW

Sections

.text
Size: 153KB - Virtual size: 152KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 54KB - Virtual size: 54KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
��5�.pyc

Sharing

General

Malware Config

Signatures

Files

366fdad9fcfadbb8d97a02e946650cdf

Code Sign

33:00:00:04:a7:04:3e:e4:22:c8:34:fa:fc:00:00:00:00:04:a7Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

dd:47:db:a7:98:0f:c0:2b:84:f6:0b:91:7d:42:57:9f:3d:dd:1c:06:d5:08:89:03:68:8c:95:e1:96:84:c1:fbSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 153KB - Virtual size: 152KB

.rdata Size: 54KB - Virtual size: 54KB

.data Size: 3KB - Virtual size: 18KB

.rsrc Size: 6KB - Virtual size: 6KB

.reloc Size: 8KB - Virtual size: 7KB

33:00:00:04:a7:04:3e:e4:22:c8:34:fa:fc:00:00:00:00:04:a7
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

dd:47:db:a7:98:0f:c0:2b:84:f6:0b:91:7d:42:57:9f:3d:dd:1c:06:d5:08:89:03:68:8c:95:e1:96:84:c1:fb
Signer

.text
Size: 153KB - Virtual size: 152KB

.rdata
Size: 54KB - Virtual size: 54KB

.data
Size: 3KB - Virtual size: 18KB

.rsrc
Size: 6KB - Virtual size: 6KB

.reloc
Size: 8KB - Virtual size: 7KB