blankgrabber | dotnet-sdk-8[.]0[.]403-win-x64[.]exe

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General

Target

dotnet-sdk-8.0.403-win-x64.exe
Size

219.5MB
MD5

9e625bd1dcdd6099ddbdfc59c19c5dc5
SHA1

43f2596ab5659c58c32441eb8fd7f02ab8aae865
SHA256

3af9fa47407984f82152fe37315797b90073021350ee6a06a3ca077bf5271aef
SHA512

b4166cedeac4aa66e5201093b59ece18d9c3f9f037a4a1b9e3f90e866a921dc17edbc301c59ad17b7936f83aaf327a423b771127540521ffb475a8dece955adb
SSDEEP

3145728:ZqOGp8nPQG1QTgMSs/mdcGVulvIBawW2Tv4Tge6m6P3faoOoB3YOj/+Z+01qCFCD:8inPZkmdcGVvRW2s6m6/nYOiZ+oqRh

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/V�:RL�b.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

dotnet-sdk-8.0.403-win-x64.exe
.exe windows:6 windows x64 arch:x64

a06f302f71edd380da3d5bf4a6d94ebd

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

Issuer

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

Not Before

01-08-2013 12:00

Not After

15-01-2038 12:00

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

Issuer

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

Not Before

29-04-2021 00:00

Not After

28-04-2036 23:59

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:1f:14:1b:8b:30:0d:25:f3:14:eb:23:0c:d0:d1:dd
Certificate

Issuer

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

Not Before

17-01-2022 00:00

Not After

15-01-2025 23:59

Subject

CN=Python Software Foundation,O=Python Software Foundation,L=Beaverton,ST=Oregon,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0b:ae:66:bc:5a:ba:7f:95:87:c6:f9:e9:04:e3:33:04
Certificate

Issuer

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

Not Before

26-09-2024 00:00

Not After

25-11-2035 23:59

Subject

CN=DigiCert Timestamp 2024,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

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

Issuer

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

Not Before

23-03-2022 00:00

Not After

22-03-2037 23:59

Subject

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

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

Issuer

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

Not Before

01-08-2022 00:00

Not After

09-11-2031 23:59

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

9c:d3:84:12:05:b9:d8:10:d5:29:a9:32:81:ea:0a:49:65:52:34:dd:e5:ae:be:8e:ae:3f:d6:98:6f:e3:28:1e
Signer

Actual PE Digest

9c:d3:84:12:05:b9:d8:10:d5:29:a9:32:81:ea:0a:49:65:52:34:dd:e5:ae:be:8e:ae:3f:d6:98:6f:e3:28:1e

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: 27KB - Virtual size: 27KB

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
V�:RL�b.pyc

Sharing

General

Malware Config

Signatures

Files

a06f302f71edd380da3d5bf4a6d94ebd

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5cCertificate

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

07:1f:14:1b:8b:30:0d:25:f3:14:eb:23:0c:d0:d1:ddCertificate

Extended Key Usages

Key Usages

0b:ae:66:bc:5a:ba:7f:95:87:c6:f9:e9:04:e3:33:04Certificate

Extended Key Usages

Key Usages

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

Extended Key Usages

Key Usages

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

Key Usages

9c:d3:84:12:05:b9:d8:10:d5:29:a9:32:81:ea:0a:49:65:52:34:dd:e5:ae:be:8e:ae:3f:d6:98:6f:e3:28:1eSigner

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: 27KB - Virtual size: 27KB

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

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

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

07:1f:14:1b:8b:30:0d:25:f3:14:eb:23:0c:d0:d1:dd
Certificate

0b:ae:66:bc:5a:ba:7f:95:87:c6:f9:e9:04:e3:33:04
Certificate

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

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

9c:d3:84:12:05:b9:d8:10:d5:29:a9:32:81:ea:0a:49:65:52:34:dd:e5:ae:be:8e:ae:3f:d6:98:6f:e3:28:1e
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: 27KB - Virtual size: 27KB

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