blankgrabber | LOADER[.]exe

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General

Target

LOADER.exe
Size

5.8MB
MD5

1f2e445540db3ca020afa5a46a0d0f2c
SHA1

ba950e9a9f0862a0ad63e8c63d25cfcfefab7231
SHA256

ef78d9661627a415232a88d549d64a060380d7a68837590b67ed609ba0df95b5
SHA512

287c4dd04e84aa9f9a328bfcf54eb19677ee187f731ff80485988d275bc6495ca4db6fce380614639c299a00aa0b68c0fa4382534bc22c378b69e25661d821af
SSDEEP

98304:RUEtdFBClamaHl3Ne4i3gmtfXJOLhx9fZAzDJ4wzQgsRuGK4RhOuAK4do7n:lFIgeN/FJMIDJf0gsAGK4RkuAK4y7n

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/e��s.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

LOADER.exe
.exe windows:4 windows x64 arch:x64

262993ff7a3da5d184ec36c9cb7d76c3

Code Sign

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15
Certificate

Issuer

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

Not Before

03-02-2023 00:05

Not After

01-02-2024 00:05

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

1b:fe:cd:1a:32:e7:1c:e2:f4:2c:f4:b8:cb:49:04:a1:90:f2:07:25:a4:fc:da:53:a0:61:b0:55:a9:43:73:e5
Signer

Actual PE Digest

1b:fe:cd:1a:32:e7:1c:e2:f4:2c:f4:b8:cb:49:04:a1:90:f2:07:25:a4:fc:da:53:a0:61:b0:55:a9:43:73:e5

Digest Algorithm

sha256

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Imports

advapi32

ConvertSidToStringSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
GetTokenInformation
OpenProcessToken

comctl32

LoadIconMetric

gdi32

CreateFontIndirectW
DeleteObject
SelectObject

kernel32

CloseHandle
CreateDirectoryW
CreateProcessW
CreateSymbolicLinkW
DeleteCriticalSection
EnterCriticalSection
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FormatMessageW
FreeLibrary
GetCommandLineW
GetCurrentProcess
GetEnvironmentVariableW
GetExitCodeProcess
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetStartupInfoW
GetTempPathW
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LocalFree
MulDiv
MultiByteToWideChar
SetConsoleCtrlHandler
SetDllDirectoryW
SetEnvironmentVariableW
SetUnhandledExceptionFilter
Sleep
TlsGetValue
VirtualProtect
VirtualQuery
WaitForSingleObject
WideCharToMultiByte
__C_specific_handler

ucrtbase

__acrt_iob_func
__daylight
__p___argc
__p___argv
__p___wargv
__p__commode
__p__environ
__p__fmode
__p__wcmdln
__p__wenviron
__setusermatherr
__stdio_common_vfprintf
__stdio_common_vfwprintf
__stdio_common_vsprintf
__stdio_common_vswprintf
__timezone
__tzname
_cexit
_configure_narrow_argv
_configure_wide_argv
_crt_at_quick_exit
_crt_atexit
_errno
_exit
_fileno
_findclose
_get_osfhandle
_getpid
_initialize_narrow_environment
_initialize_wide_environment
_initterm
_set_app_type
_set_invalid_parameter_handler
_set_new_mode
_stat64
_strdup
_stricmp
_tzset
_wcsdup
_wcsdup
_wfindfirst64
_wfindnext64
_wfopen
_wfullpath
_wputenv_s
_wremove
_wrmdir
_wstat64
_wtempnam
abort
calloc
clearerr
exit
fclose
feof
ferror
fflush
fputs
fread
free
fseek
ftell
fwrite
iswctype
malloc
mbstowcs
memcmp
memcpy
memset
perror
realloc
setlocale
signal
strcat
strchr
strcmp
strcpy
strerror
strlen
strncat
strncmp
strncpy
strtok
strtoul
wcscat
wcschr
wcscmp
wcscpy
wcslen
wcsncpy
wcstombs

user32

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

Sections

.text
Size: 61KB - Virtual size: 61KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 336B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 30KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

/4
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 5KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 96B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 320B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
e��s.pyc

Sharing

General

Malware Config

Signatures

Files

262993ff7a3da5d184ec36c9cb7d76c3

Code Sign

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15Certificate

Extended Key Usages

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

Key Usages

1b:fe:cd:1a:32:e7:1c:e2:f4:2c:f4:b8:cb:49:04:a1:90:f2:07:25:a4:fc:da:53:a0:61:b0:55:a9:43:73:e5Signer

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

comctl32

gdi32

kernel32

ucrtbase

user32

Sections

.text Size: 61KB - Virtual size: 61KB

.data Size: 512B - Virtual size: 336B

.rdata Size: 30KB - Virtual size: 29KB

/4 Size: 512B - Virtual size: 4B

.pdata Size: 3KB - Virtual size: 2KB

.xdata Size: 3KB - Virtual size: 2KB

.bss Size: - Virtual size: 5KB

.idata Size: 6KB - Virtual size: 5KB

.CRT Size: 512B - Virtual size: 96B

.tls Size: 512B - Virtual size: 16B

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

.reloc Size: 512B - Virtual size: 320B

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15
Certificate

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

1b:fe:cd:1a:32:e7:1c:e2:f4:2c:f4:b8:cb:49:04:a1:90:f2:07:25:a4:fc:da:53:a0:61:b0:55:a9:43:73:e5
Signer

.text
Size: 61KB - Virtual size: 61KB

.data
Size: 512B - Virtual size: 336B

.rdata
Size: 30KB - Virtual size: 29KB

/4
Size: 512B - Virtual size: 4B

.pdata
Size: 3KB - Virtual size: 2KB

.xdata
Size: 3KB - Virtual size: 2KB

.bss
Size: - Virtual size: 5KB

.idata
Size: 6KB - Virtual size: 5KB

.CRT
Size: 512B - Virtual size: 96B

.tls
Size: 512B - Virtual size: 16B

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

.reloc
Size: 512B - Virtual size: 320B