StExt32[.]dll | Triage

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General

Target

StExt32.dll
Size

279KB
MD5

258db9853707057bd566c57e4363fba6
SHA1

924dbd40ef6397ee92b797c912747e9ad299e27c
SHA256

85d2a6317b65ceb105c9e9b0db5fe9bbf689ef3f82b2f90adc5c4eb5326cf604
SHA512

8df77fad33dd22021e4d556ac26882f079124d8dc868c644a22b9322d6eeb83c84e91f89590e83811f55794881129614e922342f3387a0dd921af14c38687f7a
SSDEEP

6144:WRYS4Ucx9CY5OvqjBwnYkLNOcxz2/AXKI:WerN6i6Ykp6+

Score

1^/10

Malware Config

Signatures

Files

StExt32.dll
.dll windows:4 windows x86 arch:x86

7a636934fa93a0806b54dcd4c6edabe5

Code Sign

6e:a1:d4:94:5f:0e:69:e9:d6:f1:48:2c:58:6a:71:af
Certificate

Issuer

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

17/04/2018, 08:20

Not After

18/05/2027, 08:20

Subject

CN=WoTrus Code Signing CA,O=WoTrus CA Limited,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

74:c9:0c:43:bb:5a:ba:7a:d3:64:6a:e3:a6:9e:c4:52
Certificate

Issuer

CN=WoTrus Code Signing CA,O=WoTrus CA Limited,C=CN

Not Before

17/05/2019, 08:43

Not After

16/06/2020, 08:43

Subject

CN=易联众智能（厦门）科技有限公司,O=易联众智能（厦门）科技有限公司,L=厦门市,ST=福建省,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

3d:1a:35:72:30:15:82:63:30:d0:13:71:7e:82:41:08
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

02/05/2019, 00:00

Not After

01/08/2030, 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #1,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02/05/2019, 00:00

Not After

18/01/2038, 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

9d:09:cd:d1:73:17:01:b9:2f:71:6d:77:73:21:89:8d:cd:a7:96:38:d0:63:49:06:fc:c8:e2:09:b4:3e:fc:09
Signer

Actual PE Digest

9d:09:cd:d1:73:17:01:b9:2f:71:6d:77:73:21:89:8d:cd:a7:96:38:d0:63:49:06:fc:c8:e2:09:b4:3e:fc:09

Digest Algorithm

sha256

PE Digest Matches

true

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

GetCommandLineA
ExitProcess
HeapReAlloc
TerminateProcess
ExitThread
CreateThread
HeapSize
SetUnhandledExceptionFilter
HeapDestroy
HeapCreate
VirtualFree
IsBadWritePtr
SetHandleCount
GetStdHandle
GetFileType
GetStartupInfoA
FreeEnvironmentStringsA
GetEnvironmentStrings
FreeEnvironmentStringsW
GetEnvironmentStringsW
UnhandledExceptionFilter
QueryPerformanceCounter
VirtualQuery
GetCurrentProcessId
GetSystemTimeAsFileTime
GetTimeZoneInformation
LCMapStringA
LCMapStringW
GetStringTypeA
GetStringTypeW
IsBadReadPtr
IsBadCodePtr
SetStdHandle
SetEnvironmentVariableA
GetSystemInfo
VirtualAlloc
VirtualProtect
HeapFree
HeapAlloc
RtlUnwind
WritePrivateProfileStringA
GetOEMCP
GetCPInfo
GetFileTime
GetFileAttributesA
SetFileAttributesA
SetFileTime
LocalFileTimeToFileTime
FileTimeToLocalFileTime
SystemTimeToFileTime
FileTimeToSystemTime
GlobalFlags
InterlockedIncrement
RaiseException
SetErrorMode
TlsFree
DeleteCriticalSection
LocalReAlloc
TlsSetValue
TlsAlloc
InitializeCriticalSection
TlsGetValue
EnterCriticalSection
GlobalHandle
GlobalReAlloc
CreateDirectoryA
RemoveDirectoryA
FindNextFileA
LeaveCriticalSection
LocalAlloc
CreateEventA
SuspendThread
SetEvent
WaitForSingleObject
ResumeThread
SetThreadPriority
GetCurrentThread
lstrcmpA
ConvertDefaultLocale
EnumResourceLanguagesA
GetCurrentThreadId
GlobalGetAtomNameA
GlobalAddAtomA
GlobalFindAtomA
GlobalDeleteAtom
FreeLibrary
lstrcmpW
LoadLibraryA
CreateFileA
GetFullPathNameA
GetVolumeInformationA
FindFirstFileA
FindClose
GetCurrentProcess
DuplicateHandle
CloseHandle
GetFileSize
SetEndOfFile
UnlockFile
LockFile
FlushFileBuffers
SetFilePointer
WriteFile
ReadFile
DeleteFileA
FreeResource
GetModuleHandleA
GetProcAddress
InterlockedDecrement
SetLastError
MulDiv
FormatMessageA
lstrcpynA
LocalFree
SearchPathA
CompareStringW
CompareStringA
lstrlenA
lstrlenW
lstrcmpiA
GetVersion
MultiByteToWideChar
GetLastError
GlobalAlloc
GetModuleFileNameA
lstrcatA
GetPrivateProfileStringA
lstrcpyA
GlobalLock
GlobalUnlock
WideCharToMultiByte
FindResourceA
LoadResource
LockResource
SizeofResource
GetVersionExA
GetThreadLocale
GetLocaleInfoA
GetACP
InterlockedExchange
GetTickCount
GlobalFree

user32

WinHelpA
GetCapture
CreateWindowExA
SetWindowsHookExA
CallNextHookEx
GetClassLongA
GetClassInfoExA
GetClassNameA
SetPropA
GetPropA
RemovePropA
SendDlgItemMessageA
SetFocus
GetWindowTextLengthA
GetWindowTextA
GetForegroundWindow
DispatchMessageA
GetTopWindow
GetMessageTime
GetMessagePos
PeekMessageA
MapWindowPoints
GetKeyState
SetForegroundWindow
IsWindowVisible
UpdateWindow
GetClientRect
GetMenu
AdjustWindowRectEx
GetClassInfoA
RegisterClassA
UnregisterClassA
GetDlgCtrlID
RegisterWindowMessageA
SetRect
SystemParametersInfoA
PostMessageA
GetWindowRect
EnableWindow
SendMessageA
MessageBoxA
CharUpperA
LoadIconA
GetSubMenu
GetMenuItemCount
CallWindowProcA
SetWindowLongA
SetWindowPos
IsIconic
GetWindowPlacement
PtInRect
GetWindow
CopyRect
GetLastActivePopup
wsprintfA
GetDesktopWindow
GetActiveWindow
IsDialogMessageA
SetWindowTextA
ShowWindow
SetActiveWindow
GetSystemMetrics
CreateDialogIndirectParamA
DestroyWindow
IsWindow
GetWindowLongA
GetDlgItem
IsWindowEnabled
GetNextDlgTabItem
EndDialog
SetMenuItemBitmaps
GetFocus
DefWindowProcA
GetMenuItemID
GetMenuState
UnhookWindowsHookEx
FillRect
TabbedTextOutA
DrawTextA
DrawTextExA
GrayStringA
ScreenToClient
ClientToScreen
GetDC
ReleaseDC
BeginPaint
EndPaint
PostQuitMessage
SetCursor
ValidateRect
GetCursorPos
TranslateMessage
GetMessageA
GetSysColorBrush
LoadCursorA
DestroyMenu
InvalidateRect
GetSysColor
LoadBitmapA
GetMenuCheckMarkDimensions
CheckMenuItem
GetParent
ModifyMenuA
EnableMenuItem

gdi32

CreateBitmap
CreateCompatibleDC
GetStockObject
CreateSolidBrush
DeleteDC
CreateCompatibleBitmap
ScaleWindowExtEx
SetWindowExtEx
ScaleViewportExtEx
SetViewportExtEx
OffsetViewportOrgEx
SetViewportOrgEx
SelectObject
Escape
ExtTextOutA
TextOutA
RectVisible
PtVisible
BitBlt
GetObjectA
CreateFontIndirectA
GetDeviceCaps
DeleteObject
GetClipBox
SetMapMode
SetTextColor
SetBkMode
SetBkColor
RestoreDC
SaveDC
SelectPalette
SetStretchBltMode
SetDIBitsToDevice
StretchDIBits
CreatePalette
EndDoc
AbortDoc
EndPage
StartPage
StartDocA
DPtoLP

comdlg32

PrintDlgA
GetFileTitleA

winspool.drv

OpenPrinterA
GetPrinterA
ClosePrinter
DocumentPropertiesA

advapi32

RegOpenKeyA
RegQueryValueExA
RegOpenKeyExA
RegDeleteKeyA
RegEnumKeyA
RegQueryValueA
RegCreateKeyExA
RegSetValueExA
RegCloseKey

shell32

SHBrowseForFolderA
Shell_NotifyIconA
ShellExecuteA
SHGetPathFromIDListA

comctl32

ord17

shlwapi

PathFindExtensionA
PathIsUNCA
PathStripToRootA
PathFindFileNameA

oleaut32

VariantInit
VariantChangeType
VariantClear

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

oci

OCIHandleAlloc
OCIEnvInit
OCIInitialize
oclose
oerhms
olog
ologof
OCISvcCtxToLda
ocom
orol
OCIServerDetach
OCISessionEnd
oopen
oparse
odefin
odescr
obndra
oexec
oflng
ofetch
OCIErrorGet
OCISessionBegin
OCIServerAttach
OCIAttrSet
OCITransCommit
OCITransRollback
OCIAttrGet
OCIStmtExecute
OCIStmtPrepare
OCIDefineByPos
OCIParamGet
OCIBindByPos
OCIStmtSetPieceInfo
OCIStmtGetPieceInfo
OCIStmtFetch
OCILdaToSvcCtx
OCIHandleFree

Exports

Exports

St_BitProcess
St_BrowerFolder
St_C2U
St_ChangePassword
St_ChangePwd
St_ClearProtectFileFlag
St_CreateDirectory
St_DelTree
St_DownLoadPatchFile
St_ExistDirectory
St_ExistFile
St_FileRead
St_FileWrite
St_GetCurrentLda
St_GetFileVersion
St_GetFileVersion32
St_InitConnect
St_InitConnect32
St_Make256GrayDibHead
St_MemCopyFromHandle
St_MemCopyFromMem
St_MemInit
St_NotifyIcon
St_ParseExpression
St_PrintICCard
St_PrintPageSize
St_ProcBindVar
St_ProcErrMsg
St_ProcExecute
St_ProcInitVar
St_ProcInitVar32
St_ProcIsExit
St_ProcRelease
St_ProcStringValue
St_SetConnParam
St_SetLdaDef
St_SplitPath
St_UTF8ToAscii
St_WndGetMinMaxInfo

Sections

.text
Size: 144KB - Virtual size: 141KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 40KB - Virtual size: 38KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 12KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 40KB - Virtual size: 39KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 32KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7a636934fa93a0806b54dcd4c6edabe5

Code Sign

6e:a1:d4:94:5f:0e:69:e9:d6:f1:48:2c:58:6a:71:afCertificate

Extended Key Usages

Key Usages

74:c9:0c:43:bb:5a:ba:7a:d3:64:6a:e3:a6:9e:c4:52Certificate

Extended Key Usages

Key Usages

3d:1a:35:72:30:15:82:63:30:d0:13:71:7e:82:41:08Certificate

Extended Key Usages

Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

9d:09:cd:d1:73:17:01:b9:2f:71:6d:77:73:21:89:8d:cd:a7:96:38:d0:63:49:06:fc:c8:e2:09:b4:3e:fc:09Signer

Headers

File Characteristics

Imports

kernel32

user32

gdi32

comdlg32

winspool.drv

advapi32

shell32

comctl32

shlwapi

oleaut32

version

oci

Exports

Exports

Sections

.text Size: 144KB - Virtual size: 141KB

.rdata Size: 40KB - Virtual size: 38KB

.data Size: 12KB - Virtual size: 24KB

.rsrc Size: 40KB - Virtual size: 39KB

.reloc Size: 32KB - Virtual size: 28KB

6e:a1:d4:94:5f:0e:69:e9:d6:f1:48:2c:58:6a:71:af
Certificate

74:c9:0c:43:bb:5a:ba:7a:d3:64:6a:e3:a6:9e:c4:52
Certificate

3d:1a:35:72:30:15:82:63:30:d0:13:71:7e:82:41:08
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

9d:09:cd:d1:73:17:01:b9:2f:71:6d:77:73:21:89:8d:cd:a7:96:38:d0:63:49:06:fc:c8:e2:09:b4:3e:fc:09
Signer

.text
Size: 144KB - Virtual size: 141KB

.rdata
Size: 40KB - Virtual size: 38KB

.data
Size: 12KB - Virtual size: 24KB

.rsrc
Size: 40KB - Virtual size: 39KB

.reloc
Size: 32KB - Virtual size: 28KB