blankgrabber | FH4GDGD[.]exe

Resubmissions

04/04/2024, 16:00

240404-tfmmcabh7y10

04/04/2024, 15:52

240404-ta2t3scd8910

Sharing

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General

Target
FH4GDGD.exe
Size 7.4MB
Sample240404-ta2t3scd89
SHA256 17f6e0a0e7436b49256404998f53f75aeb633bc3e1189d1c3596d9c9ecea5254
MD5 1ec691396b40ec3ce65331a03a40275f
SHA1 1aa7a7d296d597eda4d67a19746f155eb7f6c7c6
SHA512 9820daa225cdb5513248f2cb08560f22718654d300d04f60cc5fa51371fde762e8fb09e11c6d0bf3630c8ffc3e27eb2bde100e66fa9d23b141384a585bf33fcd
SSDEEP 98304:Q9Mc5durErvz81LpWjjUlLkvzgXO9hAlaYrzzuJZYJ1JIuIHKU73bcgVowg/g:QLdurErvI9pWjgyvoaYrE41JIuIqoxkY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/[V�d��.pyc	blankgrabber

Blankgrabber family
blankgrabber

File Explorer

FH4GDGD.exe

.exe 7.4MB
[V�d��.pyc

1KB

FH4GDGD.exe

IMPHASH 1af6c885af093afc55142c2f1761dbe8
SHA256 17f6e0a0e7436b49256404998f53f75aeb633bc3e1189d1c3596d9c9ecea5254
MD5 1ec691396b40ec3ce65331a03a40275f
SHA1 1aa7a7d296d597eda4d67a19746f155eb7f6c7c6
SHA512 9820daa225cdb5513248f2cb08560f22718654d300d04f60cc5fa51371fde762e8fb09e11c6d0bf3630c8ffc3e27eb2bde100e66fa9d23b141384a585bf33fcd
SSDEEP 98304:Q9Mc5durErvz81LpWjjUlLkvzgXO9hAlaYrzzuJZYJ1JIuIHKU73bcgVowg/g:QLdurErvI9pWjgyvoaYrE41JIuIqoxkY
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

PE Signature issue

Digest

4a:1e:95:95:39:fc:94:4f:89:b8:25:69:c8:e4:76:30:87:07:e1:2a:b6:2d:92:dc:af:09:47:95:15:af:0f:8c

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Signing Certificate

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

Chains

Apr 4, 2024

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

CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

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

PE Signature issue

Digest

4a:1e:95:95:39:fc:94:4f:89:b8:25:69:c8:e4:76:30:87:07:e1:2a:b6:2d:92:dc:af:09:47:95:15:af:0f:8c

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Signing Certificate

CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US

Chains

Oct 26, 2023

CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Serial Number

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Apr 29, 2021 - Apr 28, 2036

Subject

CN=NVIDIA Corporation,OU=1-F,O=NVIDIA Corporation,L=Santa Clara,ST=California,C=US

Serial Number

0d:01:94:cd:1e:31:42:20:51:35:d1:c6:36:e4:e9:ba

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Oct 18, 2022 - Oct 15, 2025

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Serial Number

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Jul 14, 2023 - Oct 13, 2034

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Serial Number

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Mar 23, 2022 - Mar 22, 2037

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Serial Number

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Timespan

Aug 1, 2022 - Nov 9, 2031

Subject

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

Serial Number

33:00:00:01:08:e2:33:7a:56:70:40:c0:d5:00:00:00:00:01:08

Issuer

CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Sep 14, 2023 - Sep 4, 2024

Subject

CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:0b:aa:c1:00:00:00:00:00:09

Issuer

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

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Timespan

Apr 18, 2012 - Apr 18, 2027

Minor OS version

Major OS version

Entry point

49968

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

PDB paths

user32

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

comctl32

ord380

kernel32

IsValidCodePage GetStringTypeW GetFileAttributesExW HeapReAlloc FlushFileBuffers GetCurrentDirectoryW GetACP GetOEMCP GetModuleHandleW MulDiv GetLastError SetDllDirectoryW GetModuleFileNameW CreateSymbolicLinkW GetProcAddress GetCommandLineW GetEnvironmentVariableW GetCPInfo ExpandEnvironmentStringsW CreateDirectoryW GetTempPathW WaitForSingleObject Sleep GetExitCodeProcess CreateProcessW GetStartupInfoW FreeLibrary LoadLibraryExW SetConsoleCtrlHandler FindClose FindFirstFileExW CloseHandle GetCurrentProcess LocalFree FormatMessageW MultiByteToWideChar WideCharToMultiByte GetEnvironmentStringsW FreeEnvironmentStringsW GetProcessHeap GetTimeZoneInformation HeapSize WriteConsoleW SetEndOfFile SetEnvironmentVariableW RtlUnwindEx RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent 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

Name

.text

Size

171KB

Virtual Size

171KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

76KB

Virtual Size

75KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

9KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

File Explorer

FH4GDGD.exe

PE Signature issue

PE Signature issue

user32

comctl32

kernel32

advapi32

gdi32

generic

[V �d��.pyc

[V�d��.pyc