blankgrabber | TZ[.]exe

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General

Target

TZ.exe
Size

7.4MB
MD5

0942cffb3efa3b68394e7c1d626ed63f
SHA1

6bf1bd02cdbf6bdb6ed6a8021d6b19541171eedd
SHA256

6444e46a6ddec80d96604c170a0eaa9ae30605432c10895101a8fd6fdf7de373
SHA512

6cac769bf2c1e2798f7fdecc740237ec219d5af4ab51921b6a3c7ed5993cb3398dceceddbf8947a975762381d29e6ab38ec49ddc179fe037e500812cd81e8c96
SSDEEP

98304:JpaMc+nEurErvz81LpWjjUlLkvzgXO9hAlaYrzzuJZYJ1JIuI/KU73bcgVowjMq:nvnEurErvI9pWjgyvoaYrE41JIuICoxp

Score

10^/10

blankgrabber

Malware Config

Signatures

A stealer written in Python and packaged with Pyinstaller 1 IoCs

resource	yara_rule
static1/unpack001/&>�XE#W.pyc	blankgrabber

Blankgrabber family
blankgrabber

Files

TZ.exe
.exe windows:6 windows x64 arch:x64

a06f302f71edd380da3d5bf4a6d94ebd

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

9c:6d:01:9c:ab:74:1c:ab:d8:5c:3a:45:14:0c:50:ff:ad:57:7d:bf:db:fc:0c:db:b1:31:3b:bc:c3:6a:3a:5c
Signer

Actual PE Digest

9c:6d:01:9c:ab:74:1c:ab:d8:5c:3a:45:14:0c:50:ff:ad:57:7d:bf:db:fc:0c:db:b1:31:3b:bc:c3:6a:3a:5c

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: 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
&>�XE#W.pyc

Sharing

General

Malware Config

Signatures

Files

a06f302f71edd380da3d5bf4a6d94ebd

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

9c:6d:01:9c:ab:74:1c:ab:d8:5c:3a:45:14:0c:50:ff:ad:57:7d:bf:db:fc:0c:db:b1:31:3b:bc:c3:6a:3a:5cSigner

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: 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

9c:6d:01:9c:ab:74:1c:ab:d8:5c:3a:45:14:0c:50:ff:ad:57:7d:bf:db:fc:0c:db:b1:31:3b:bc:c3:6a:3a:5c
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: 2KB - Virtual size: 2KB

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