blankgrabber | WaveInstaller[.]exe

Resubmissions

04-07-2024 03:29

240704-d1zjmstgqh 10

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General

Target

WaveInstaller.exe
Size

9.5MB
MD5

19f643c5ea4560046bafd390fa49f66b
SHA1

a9fabd9177238c649d8f65a1b9bc7b5141d68da3
SHA256

ea17b2d1cd10a3bcf8e70196795ee90b3802f4b348b340a085d85452527fc602
SHA512

0f0703655b70535c6ecf85a113720540fa06fd9616b9d6bad4698f141518ce14bd3ffb88bb5f719eb77381c7109ffa7af017ad7022d1b7c6fddaab12fd87be2b
SSDEEP

196608:55HQXwuLWYlHksurErvI9pWjgN3ZdahF0pbH1AYSEp1CtQsNI/SBmUi:BtQurEUWjqeWxQX6nWvi

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

Processes:

resource yara_rule

static1/unpack001/�&G� υ.pyc blankgrabber
Blankgrabber family
blankgrabber

resource	yara_rule
static1/unpack001/�&G� υ.pyc	blankgrabber

Files

WaveInstaller.exe
.exe windows:5 windows x64 arch:x64

2ac23c52e7647c5bbea38e98bb68c652

Code Sign

33:00:00:04:5f:f3:c9:6c:1a:7f:f7:da:1d:00:00:00:00:04:5f
Certificate

Issuer

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

Not Before

16-11-2023 19:20

Not After

14-11-2024 19:20

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

ba:72:26:72:ff:b2:46:50:3f:85:a4:08:f9:ca:15:74:8e:71:78:c9:06:29:65:b9:d0:eb:5a:ce:f8:5a:51:9f
Signer

Actual PE Digest

ba:72:26:72:ff:b2:46:50:3f:85:a4:08:f9:ca:15:74:8e:71:78:c9:06:29:65:b9:d0:eb:5a:ce:f8:5a:51:9f

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

comctl32

ord380

kernel32

GetACP
IsValidCodePage
GetStringTypeW
GetFileAttributesExW
SetEnvironmentVariableW
FlushFileBuffers
GetCurrentDirectoryW
GetOEMCP
GetCPInfo
GetModuleHandleW
MulDiv
GetLastError
FormatMessageW
GetModuleFileNameW
SetDllDirectoryW
CreateSymbolicLinkW
GetProcAddress
CreateDirectoryW
GetCommandLineW
GetEnvironmentVariableW
GetEnvironmentStringsW
DeleteFileW
FindClose
FindFirstFileW
FindNextFileW
GetDriveTypeW
RemoveDirectoryW
GetTempPathW
CloseHandle
WaitForSingleObject
Sleep
GetCurrentProcess
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LoadLibraryExW
LocalFree
SetConsoleCtrlHandler
CreateFileW
FindFirstFileExW
GetFinalPathNameByHandleW
MultiByteToWideChar
WideCharToMultiByte
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize
HeapReAlloc
WriteConsoleW
SetEndOfFile
ExpandEnvironmentStringsW
QueryPerformanceCounter
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
RaiseException
RtlPcToFileHeader
GetCommandLineA
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ReadFile
GetFullPathNameW
SetStdHandle
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: 164KB - Virtual size: 163KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 73KB - Virtual size: 73KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

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
�&G� υ.pyc

Resubmissions

Sharing

General

Malware Config

Signatures

Files

2ac23c52e7647c5bbea38e98bb68c652

Code Sign

33:00:00:04:5f:f3:c9:6c:1a:7f:f7:da:1d:00:00:00:00:04:5fCertificate

Extended Key Usages

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

Key Usages

ba:72:26:72:ff:b2:46:50:3f:85:a4:08:f9:ca:15:74:8e:71:78:c9:06:29:65:b9:d0:eb:5a:ce:f8:5a:51:9fSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 164KB - Virtual size: 163KB

.rdata Size: 73KB - Virtual size: 73KB

.data Size: 3KB - Virtual size: 28KB

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

.rsrc Size: 2KB - Virtual size: 2KB

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

33:00:00:04:5f:f3:c9:6c:1a:7f:f7:da:1d:00:00:00:00:04:5f
Certificate

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

ba:72:26:72:ff:b2:46:50:3f:85:a4:08:f9:ca:15:74:8e:71:78:c9:06:29:65:b9:d0:eb:5a:ce:f8:5a:51:9f
Signer

.text
Size: 164KB - Virtual size: 163KB

.rdata
Size: 73KB - Virtual size: 73KB

.data
Size: 3KB - Virtual size: 28KB

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

.rsrc
Size: 2KB - Virtual size: 2KB

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