blankgrabber | Built[.]exe

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General

Target

Built.exe
Size

79.4MB
MD5

0dd89b59dc7c2014e5ba460c96fc9034
SHA1

0bedbcf2c73d8bb665f55fe0b9e8cdaf65fee2ad
SHA256

62ea2367770cfe7a87b09503858dfeb7db03fd9e0c4605b7b4d86a63ee066be8
SHA512

9a1568449b1f70c2a433eea6bb7c09605c51cfb09a0e09c7dac962388f8c251ef07cbe4b2289351a1bd7f91ad590ade46655785caba391e2569d9e54642c0a35
SSDEEP

1572864:WT01ghxDyeRk6yXE7FNATntks4xi3n9jSFCa1So9dKshD5Iqv1ynpKj:WTo0Rk6YYFa5k6X9QlRAsl5Irp

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/�I�F��.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

Built.exe
.exe windows:6 windows x64 arch:x64

a06f302f71edd380da3d5bf4a6d94ebd

Code Sign

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15
Certificate

Issuer

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

Not Before

03-02-2023 00:05

Not After

01-02-2024 00:05

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

27:c5:4f:f2:93:cc:93:26:f6:68:f6:94:f9:e6:83:68:04:2c:bb:ae:e2:94:7f:41:b9:01:3c:4c:42:ee:29:0a
Signer

Actual PE Digest

27:c5:4f:f2:93:cc:93:26:f6:68:f6:94:f9:e6:83:68:04:2c:bb:ae:e2:94:7f:41:b9:01:3c:4c:42:ee:29:0a

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

TranslateMessage
ShutdownBlockReasonCreate
GetWindowThreadProcessId
SetWindowLongPtrW
GetWindowLongPtrW
MsgWaitForMultipleObjects
ShowWindow
DestroyWindow
CreateWindowExW
RegisterClassW
DefWindowProcW
PeekMessageW
DispatchMessageW
GetMessageW

kernel32

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

advapi32

ConvertSidToStringSidW
GetTokenInformation
OpenProcessToken
ConvertStringSecurityDescriptorToSecurityDescriptorW

Sections

.text
Size: 172KB - Virtual size: 172KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 74KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 21KB

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

.rsrc
Size: 18KB - Virtual size: 18KB

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
�I�F��.pyc

Sharing

General

Malware Config

Signatures

Files

a06f302f71edd380da3d5bf4a6d94ebd

Code Sign

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15Certificate

Extended Key Usages

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

Key Usages

27:c5:4f:f2:93:cc:93:26:f6:68:f6:94:f9:e6:83:68:04:2c:bb:ae:e2:94:7f:41:b9:01:3c:4c:42:ee:29:0aSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

kernel32

advapi32

Sections

.text Size: 172KB - Virtual size: 172KB

.rdata Size: 74KB - Virtual size: 74KB

.data Size: 3KB - Virtual size: 21KB

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

.rsrc Size: 18KB - Virtual size: 18KB

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

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15
Certificate

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

27:c5:4f:f2:93:cc:93:26:f6:68:f6:94:f9:e6:83:68:04:2c:bb:ae:e2:94:7f:41:b9:01:3c:4c:42:ee:29:0a
Signer

.text
Size: 172KB - Virtual size: 172KB

.rdata
Size: 74KB - Virtual size: 74KB

.data
Size: 3KB - Virtual size: 21KB

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

.rsrc
Size: 18KB - Virtual size: 18KB

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