blankgrabber | SolaraBootstrapper[.]exe

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General

Target
SolaraBootstrapper.exe
Size 6.9MB
Sample240612-t3fgjsvhnr
SHA256 4c42bcfcf035ef0fc6f5ed25f799a2a021c5b0b56cc8c1beae63d6d88a82c629
MD5 17af37bd5486296d372277ee254e8521
SHA1 18f31ae3a04425b37691f9037f1d5cb2cd0a262f
SHA512 7d54daf095a59a4fe6ffeddbbebb463caac4d9a8bd707b18d665e7346bbca46061d0dbb61ddba896a3861af591827b246816ca9266f656398f9badb59e8bc808
SSDEEP 98304:VsDjWM8JEE1rVXamaHl3Ne4i3Tf2PkOpfW9hZMMoVmkzhxIdfXeRGYKJJcGhEIFh:Vs0laeNTfm/pf+xk4dWRGtrbWOjgWyU
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/;o�xZ�.pyc	blankgrabber

Blankgrabber family
blankgrabber

File Explorer

SolaraBootstrapper.exe

.exe 6.9MB
;o�xZ�.pyc

1KB

SolaraBootstrapper.exe

IMPHASH 2ac23c52e7647c5bbea38e98bb68c652
SHA256 4c42bcfcf035ef0fc6f5ed25f799a2a021c5b0b56cc8c1beae63d6d88a82c629
MD5 17af37bd5486296d372277ee254e8521
SHA1 18f31ae3a04425b37691f9037f1d5cb2cd0a262f
SHA512 7d54daf095a59a4fe6ffeddbbebb463caac4d9a8bd707b18d665e7346bbca46061d0dbb61ddba896a3861af591827b246816ca9266f656398f9badb59e8bc808
SSDEEP 98304:VsDjWM8JEE1rVXamaHl3Ne4i3Tf2PkOpfW9hZMMoVmkzhxIdfXeRGYKJJcGhEIFh:Vs0laeNTfm/pf+xk4dWRGtrbWOjgWyU
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

PE Signature issue

Digest

af:ed:9d:92:a8:e2:bc:11:25:f3:12:61:58:9b:c6:80:ff:76:a6:af:e1:ba:fa:f3:3d:f9:2e:04:48:32:c9:91

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Signing Certificate

SERIALNUMBER=407950,CN=Akeo Consulting,O=Akeo Consulting,ST=Donegal,C=IE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024945

Chains

Apr 25, 2023

SERIALNUMBER=407950,CN=Akeo Consulting,O=Akeo Consulting,ST=Donegal,C=IE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024945

CN=Sectigo Public Code Signing CA EV R36,O=Sectigo Limited,C=GB

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Subject

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Serial Number

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16

Issuer

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

May 25, 2021 - Dec 31, 2028

Subject

CN=Sectigo Public Code Signing CA EV R36,O=Sectigo Limited,C=GB

Serial Number

33:d7:08:a8:91:40:53:19:e2:a5:bb:d3:39:b9:ad:6e

Issuer

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Mar 22, 2021 - Mar 21, 2036

Subject

SERIALNUMBER=407950,CN=Akeo Consulting,O=Akeo Consulting,ST=Donegal,C=IE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13024945

Serial Number

bf:b1:50:01:bb:f5:92:d4:96:2a:77:97:ea:73:6f:a3

Issuer

CN=Sectigo Public Code Signing CA EV R36,O=Sectigo Limited,C=GB

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Sep 29, 2021 - Sep 28, 2024

Subject

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Serial Number

7b:05:b1:d4:49:68:51:44:f7:c9:89:d2:9c:19:9d:12

Issuer

Key Usages

KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Jan 12, 2016 - Jan 11, 2031

Subject

CN=Symantec SHA256 TimeStamping Signer - G3,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Serial Number

7b:d4:e5:af:ba:cc:07:3f:a1:01:23:04:22:41:4d:12

Issuer

CN=Symantec SHA256 TimeStamping CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Dec 23, 2017 - Mar 22, 2029

Minor OS version

Major OS version

Entry point

48672

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 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

Sharing

General

Malware Config

Signatures

File Explorer

SolaraBootstrapper.exe

PE Signature issue

user32

comctl32

kernel32

advapi32

gdi32

generic

;o�xZ�.pyc

;o�xZ�.pyc