blankgrabber | Malware Removal Tool[.]exe

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General

Target

Malware Removal Tool.exe
Size

7.4MB
MD5

c85a91460bfb3693eaaaafadd61d99a8
SHA1

cd32c51013814aafc3daaf2d6b8bf0cae24fbc29
SHA256

47d6daa770df061dc5ba62ee71f1bc716e12adb7529465d75166ce5b7f1ad704
SHA512

608bfa17fc141d479a698eb82c9e440498618b2abd45c17500503fb51ac43811719a9a46d72a820f7ff84ae8234563c6fddfbde81de13ba39c4235085649b3e0
SSDEEP

196608:c8YYS69OshoKMuIkhVastRL5Di3uz1D7c09:YYSkOshouIkPftRL54aRZ9

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/��.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

Malware Removal Tool.exe
.exe windows:5 windows x64

20d446c1cb128febd23deb17efb67cf6

Code Sign

33:00:00:03:3b:65:5f:ae:fa:db:75:e9:d6:00:00:00:00:03:3b
Certificate

Issuer

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

Not Before

02-09-2021 18:23

Not After

01-09-2022 18:23

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

91:64:92:4d:f7:59:ec:1b:ac:0b:a0:64:e3:6a:08:9c:f6:4b:ba:1d:56:18:ae:59:04:a2:2e:9c:0d:26:6c:d3
Signer

Actual PE Digest

91:64:92:4d:f7:59:ec:1b:ac:0b:a0:64:e3:6a:08:9c:f6:4b:ba:1d:56:18:ae:59:04:a2:2e:9c:0d:26:6c:d3

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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

Imports

user32

CreateWindowExW
MessageBoxW
MessageBoxA
SystemParametersInfoW
DestroyIcon
SetWindowLongPtrW
GetWindowLongPtrW
GetClientRect
InvalidateRect
ReleaseDC
GetDC
DrawTextW
GetDialogBaseUnits
EndDialog
DialogBoxIndirectParamW
MoveWindow
SendMessageW

comctl32

ord380

kernel32

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

advapi32

OpenProcessToken
GetTokenInformation
ConvertStringSecurityDescriptorToSecurityDescriptorW
ConvertSidToStringSidW

gdi32

SelectObject
DeleteObject
CreateFontIndirectW

Sections

.text
Size: 167KB - Virtual size: 166KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 75KB - Virtual size: 75KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 71KB - Virtual size: 70KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
��.pyc

Sharing

General

Malware Config

Signatures

Files

20d446c1cb128febd23deb17efb67cf6

Code Sign

33:00:00:03:3b:65:5f:ae:fa:db:75:e9:d6:00:00:00:00:03:3bCertificate

Extended Key Usages

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

Key Usages

91:64:92:4d:f7:59:ec:1b:ac:0b:a0:64:e3:6a:08:9c:f6:4b:ba:1d:56:18:ae:59:04:a2:2e:9c:0d:26:6c:d3Signer

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 167KB - Virtual size: 166KB

.rdata Size: 75KB - Virtual size: 75KB

.data Size: 3KB - Virtual size: 12KB

.pdata Size: 9KB - Virtual size: 8KB

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 71KB - Virtual size: 70KB

.reloc Size: 2KB - Virtual size: 1KB

33:00:00:03:3b:65:5f:ae:fa:db:75:e9:d6:00:00:00:00:03:3b
Certificate

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

91:64:92:4d:f7:59:ec:1b:ac:0b:a0:64:e3:6a:08:9c:f6:4b:ba:1d:56:18:ae:59:04:a2:2e:9c:0d:26:6c:d3
Signer

.text
Size: 167KB - Virtual size: 166KB

.rdata
Size: 75KB - Virtual size: 75KB

.data
Size: 3KB - Virtual size: 12KB

.pdata
Size: 9KB - Virtual size: 8KB

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 71KB - Virtual size: 70KB

.reloc
Size: 2KB - Virtual size: 1KB