agenttesla | StubBuilder[.]rar

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General

Target

StubBuilder.rar
Size

9.8MB
MD5

ecaf886156ca26b4c09503d65b3adb08
SHA1

8fcdaba4c79e3d74ea9774062fd2f3815bc827bd
SHA256

caba108ecd1e8601819b9863c8f790b8f93f00d607e0d5a2089bb8148905128f
SHA512

22929d4f0ddf992cf2c7471f80e0c4dc71f6175898318d494538c27713a8a11fec680186574f6c1cffba01042a096aac659f140375565825fdcf15b23f49a962
SSDEEP

196608:Ta/QbujucsqRVaPGo9onqOM5dJ7giry3Z6KbDzGrdIMZILmhN0U58:N8ucsqRe2qOG7Zrba6zZUSny

Score

10^/10

pyinstaller agenttesla

Malware Config

Signatures

AgentTesla payload 1 IoCs

resource	yara_rule
static1/unpack001/StubBuilder/Guna.UI2.dll	family_agenttesla

Agenttesla family
agenttesla

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
static1/unpack001/StubBuilder/StubBuilderHelper.exe	pyinstaller

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/StubBuilder/StubBuilder.exe
unpack001/StubBuilder/StubBuilderHelper.exe

Files

StubBuilder.rar
.rar
StubBuilder/Guna.UI2.dll
.dll windows x86

dae02f32a21e03ce65412f6e56942daa

Code Sign

7a:98:1b:7d:3e:b4:86:bb:45:84:c4:3c:c9:a8:3f:db
Certificate

Issuer

CN=Sobatdata Root CA

Not Before

23-10-2019 05:22

Not After

22-10-2025 17:00

Subject

CN=Sobatdata Software

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01-08-2022 00:00

Not After

09-11-2031 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23-03-2022 00:00

Not After

22-03-2037 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21-09-2022 00:00

Not After

21-11-2033 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

9b:64:0c:d5:9a:75:d9:20:a5:ce:a2:d2:75:54:11:57:9b:a8:7d:af
Signer

Actual PE Digest

9b:64:0c:d5:9a:75:d9:20:a5:ce:a2:d2:75:54:11:57:9b:a8:7d:af

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

mscoree

_CorDllMain

Sections

.text
Size: 2.1MB - Virtual size: 2.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
StubBuilder/StubBuilder.exe
.exe windows x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

mscoree

_CorExeMain

Sections

.text
Size: 37KB - Virtual size: 37KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
StubBuilder/StubBuilderHelper.exe
.exe windows x64

0b5552dccd9d0a834cea55c0c8fc05be

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

comctl32

ord380

kernel32

GetStringTypeW
GetFileAttributesExW
HeapReAlloc
FlushFileBuffers
GetCurrentDirectoryW
IsValidCodePage
GetACP
GetModuleHandleW
MulDiv
GetLastError
SetDllDirectoryW
GetModuleFileNameW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
GetOEMCP
ExpandEnvironmentStringsW
CreateDirectoryW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
FreeLibrary
LoadLibraryExW
SetConsoleCtrlHandler
FindClose
FindFirstFileExW
CloseHandle
GetCurrentProcess
LocalFree
FormatMessageW
MultiByteToWideChar
WideCharToMultiByte
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
GetTimeZoneInformation
HeapSize
WriteConsoleW
SetEnvironmentVariableW
RtlUnwindEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
SetEndOfFile
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
EncodePointer
RaiseException
RtlPcToFileHeader
GetCommandLineA
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
RemoveDirectoryW
FindNextFileW
SetStdHandle
DeleteFileW
ReadFile
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: 162KB - Virtual size: 162KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 75KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 64KB

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

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

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

Sharing

General

Malware Config

Signatures

Files

dae02f32a21e03ce65412f6e56942daa

Code Sign

7a:98:1b:7d:3e:b4:86:bb:45:84:c4:3c:c9:a8:3f:dbCertificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

9b:64:0c:d5:9a:75:d9:20:a5:ce:a2:d2:75:54:11:57:9b:a8:7d:afSigner

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 2.1MB - Virtual size: 2.1MB

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 512B - Virtual size: 12B

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 37KB - Virtual size: 37KB

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

.reloc Size: 512B - Virtual size: 12B

0b5552dccd9d0a834cea55c0c8fc05be

Headers

DLL Characteristics

File Characteristics

Imports

user32

comctl32

kernel32

advapi32

gdi32

Sections

.text Size: 162KB - Virtual size: 162KB

.rdata Size: 75KB - Virtual size: 74KB

.data Size: 3KB - Virtual size: 64KB

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

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 1KB - Virtual size: 1KB

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

7a:98:1b:7d:3e:b4:86:bb:45:84:c4:3c:c9:a8:3f:db
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

9b:64:0c:d5:9a:75:d9:20:a5:ce:a2:d2:75:54:11:57:9b:a8:7d:af
Signer

.text
Size: 2.1MB - Virtual size: 2.1MB

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 37KB - Virtual size: 37KB

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

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 162KB - Virtual size: 162KB

.rdata
Size: 75KB - Virtual size: 74KB

.data
Size: 3KB - Virtual size: 64KB

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

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 1KB - Virtual size: 1KB

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