blankgrabber | Rat[.]exe

Sharing

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General

Target

Rat.exe
Size

6.0MB
MD5

440cde62af2b22177721e10b87aeeb79
SHA1

6e0b47d588f6450493ef12a0091d4d67618d1964
SHA256

0ddcb2147a0dcdc66733aef27174a1b136170ac8f95ab4b18c2836e47b3be609
SHA512

66b2b4074a6b732b7ff58b6e20458bf0cf004b3f8edfbb930980ef19f8f34b14cb44b6e501380f1eafbe8ef8b5e3fb727515ac9746e8baa6e6957366c6da7efd
SSDEEP

98304:UIEtdFBGQamaHl3Ne4i3gmtfXJOLhx9fZAzDJ4wzQgsRuGK4R+OuAKMBuo8z+:UvFExeN/FJMIDJf0gsAGK4R9uAKMITz+

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/��~mq.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

Rat.exe
.exe windows:5 windows x64 arch:x64

Password: 123

2ac23c52e7647c5bbea38e98bb68c652

Code Sign

33:00:00:01:17:f8:6f:28:fa:06:6d:8d:05:00:00:00:00:01:17
Certificate

Issuer

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

24/10/2018, 21:07

Not After

10/01/2020, 21:07

Subject

CN=Microsoft Time-Stamp Service,OU=Microsoft America Operations+OU=Thales TSS ESN:3BBD-E338-E9A1,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

33:00:00:01:b1:dd:ed:ba:54:e9:65:b8:5f:00:01:00:00:01:b1
Certificate

Issuer

CN=Microsoft Code Signing PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12/07/2018, 20:11

Not After

26/07/2019, 20:11

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:33:26:1a:00:00:00:00:00:31
Certificate

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Not Before

31/08/2010, 22:19

Not After

31/08/2020, 22:29

Subject

CN=Microsoft Code Signing PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

61:16:68:34:00:00:00:00:00:1c
Certificate

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Not Before

03/04/2007, 12:53

Not After

03/04/2021, 13:03

Subject

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:00:00:02:3b:10:df:65:17:47:51:70:ff:00:00:00:00:02:3b
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12/07/2018, 20:07

Not After

08/08/2019, 20:07

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

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

Not Before

06/07/2010, 20:40

Not After

06/07/2025, 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

e1:7d:e4:0b:b8:7f:0b:93:93:0f:e9:78:41:85:75:89:3f:68:22:37:0d:58:6c:3c:82:43:74:73:de:7f:b6:53
Signer

Actual PE Digest

e1:7d:e4:0b:b8:7f:0b:93:93:0f:e9:78:41:85:75:89:3f:68:22:37:0d:58:6c:3c:82:43:74:73:de:7f:b6:53

Digest Algorithm

sha256

PE Digest Matches

false

17:41:b4:06:44:89:b8:0f:82:14:82:a1:df:aa:bf:f2:51:64:8c:28
Signer

Actual PE Digest

17:41:b4:06:44:89:b8:0f:82:14:82:a1:df:aa:bf:f2:51:64:8c:28

Digest Algorithm

sha1

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

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

Sections

.text
Size: 164KB - Virtual size: 163KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

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: 8KB - 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
��~mq.pyc

Sharing

General

Malware Config

Signatures

Files

Password: 123

2ac23c52e7647c5bbea38e98bb68c652

Code Sign

33:00:00:01:17:f8:6f:28:fa:06:6d:8d:05:00:00:00:00:01:17Certificate

Extended Key Usages

33:00:00:01:b1:dd:ed:ba:54:e9:65:b8:5f:00:01:00:00:01:b1Certificate

Extended Key Usages

61:33:26:1a:00:00:00:00:00:31Certificate

Key Usages

61:16:68:34:00:00:00:00:00:1cCertificate

Extended Key Usages

Key Usages

33:00:00:02:3b:10:df:65:17:47:51:70:ff:00:00:00:00:02:3bCertificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

e1:7d:e4:0b:b8:7f:0b:93:93:0f:e9:78:41:85:75:89:3f:68:22:37:0d:58:6c:3c:82:43:74:73:de:7f:b6:53Signer

17:41:b4:06:44:89:b8:0f:82:14:82:a1:df:aa:bf:f2:51:64:8c:28Signer

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 164KB - Virtual size: 163KB

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

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

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

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

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

33:00:00:01:17:f8:6f:28:fa:06:6d:8d:05:00:00:00:00:01:17
Certificate

33:00:00:01:b1:dd:ed:ba:54:e9:65:b8:5f:00:01:00:00:01:b1
Certificate

61:33:26:1a:00:00:00:00:00:31
Certificate

61:16:68:34:00:00:00:00:00:1c
Certificate

33:00:00:02:3b:10:df:65:17:47:51:70:ff:00:00:00:00:02:3b
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

e1:7d:e4:0b:b8:7f:0b:93:93:0f:e9:78:41:85:75:89:3f:68:22:37:0d:58:6c:3c:82:43:74:73:de:7f:b6:53
Signer

17:41:b4:06:44:89:b8:0f:82:14:82:a1:df:aa:bf:f2:51:64:8c:28
Signer

.text
Size: 164KB - Virtual size: 163KB

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

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

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

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

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