blankgrabber | Bootstrapper[.]exe

Resubmissions

02/08/2024, 22:34

240802-2g5hjsxhkb 10

02/08/2024, 21:29

240802-1cdzcswbpa 10

Sharing

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General

Target

Bootstrapper.exe
Size

7.4MB
MD5

4658412457c067b72a27e058d0411ff6
SHA1

cdf11d0cf2e899e9e2b2b94839e25fc997a5d781
SHA256

46015750ef0252ccc9127e7f9a1bbfa83da24d95cf8a2f1e4a605cb5e8003290
SHA512

b7305cb587ba314daab96e12068c80e12dcc0d63cead699fc4b68d79724188ee48305dc2d1f06fd84db9221307b9f6ba5535a94a6037b522dea845503d3dbcca
SSDEEP

98304:iCUSi8x9XQscnurErvz81LpWjjUa50ZtPvYRt2e4GFNGjfzfbIbApJo4EAKhOC14:DjP9VKurErvI9pWjgfPvzm6gsFE14A4

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/�$UlĐ.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

Bootstrapper.exe
.exe windows:6 windows x64 arch:x64

ba2fe82dbe3fc8bdddc26ef88c3ef15a

Code Sign

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

Issuer

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

Not Before

25/05/2021, 00:00

Not After

31/12/2028, 23:59

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

Issuer

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

Not Before

22/03/2021, 00:00

Not After

21/03/2036, 23:59

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

Issuer

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

Not Before

29/09/2021, 00:00

Not After

28/09/2024, 23:59

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

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

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

Issuer

CN=VeriSign Universal Root Certification Authority,OU=VeriSign Trust Network+OU=(c) 2008 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

12/01/2016, 00:00

Not After

11/01/2031, 23:59

Subject

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

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

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

Issuer

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

Not Before

23/12/2017, 00:00

Not After

22/03/2029, 23:59

Subject

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

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

9e:44:e5:d9:e8:c6:99:cf:ed:71:5e:a0:c2:20:3c:fd:6e:d8:fc:46:71:30:34:8b:a2:99:8c:ba:3d:db:23:de
Signer

Actual PE Digest

9e:44:e5:d9:e8:c6:99:cf:ed:71:5e:a0:c2:20:3c:fd:6e:d8:fc:46:71:30:34:8b:a2:99:8c:ba:3d:db:23:de

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

GetWindowThreadProcessId
ShowWindow

kernel32

GetModuleFileNameW
SetDllDirectoryW
CreateSymbolicLinkW
GetProcAddress
CreateDirectoryW
GetCommandLineW
GetEnvironmentVariableW
ExpandEnvironmentStringsW
DeleteFileW
FindClose
FindFirstFileW
FindNextFileW
GetDriveTypeW
RemoveDirectoryW
GetTempPathW
CloseHandle
WaitForSingleObject
FormatMessageW
GetCurrentProcess
GetCurrentProcessId
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LoadLibraryExW
LocalFree
SetConsoleCtrlHandler
GetConsoleWindow
K32EnumProcessModules
K32GetModuleFileNameExW
CreateFileW
FindFirstFileExW
GetFinalPathNameByHandleW
MultiByteToWideChar
WideCharToMultiByte
HeapReAlloc
GetLastError
WriteConsoleW
SetEndOfFile
Sleep
EnterCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwindEx
SetLastError
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
GetFileAttributesExW
GetStringTypeW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize

advapi32

ConvertSidToStringSidW
GetTokenInformation
OpenProcessToken
ConvertStringSecurityDescriptorToSecurityDescriptorW

Sections

.text
Size: 169KB - Virtual size: 168KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 73KB - Virtual size: 72KB

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: 9KB - 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
�$UlĐ.pyc

Resubmissions

Sharing

General

Malware Config

Signatures

Files

ba2fe82dbe3fc8bdddc26ef88c3ef15a

Code Sign

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

Extended Key Usages

Key Usages

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

Extended Key Usages

Key Usages

bf:b1:50:01:bb:f5:92:d4:96:2a:77:97:ea:73:6f:a3Certificate

Extended Key Usages

Key Usages

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

Extended Key Usages

Key Usages

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

Extended Key Usages

Key Usages

9e:44:e5:d9:e8:c6:99:cf:ed:71:5e:a0:c2:20:3c:fd:6e:d8:fc:46:71:30:34:8b:a2:99:8c:ba:3d:db:23:deSigner

Headers

DLL Characteristics

File Characteristics

Imports

user32

kernel32

advapi32

Sections

.text Size: 169KB - Virtual size: 168KB

.rdata Size: 73KB - Virtual size: 72KB

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

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

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

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

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

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

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

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

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

9e:44:e5:d9:e8:c6:99:cf:ed:71:5e:a0:c2:20:3c:fd:6e:d8:fc:46:71:30:34:8b:a2:99:8c:ba:3d:db:23:de
Signer

.text
Size: 169KB - Virtual size: 168KB

.rdata
Size: 73KB - Virtual size: 72KB

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

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

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

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