Lark-win32_ia32-6[.]11[.]12-signed[.]exe

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General

Target

Lark-win32_ia32-6.11.12-signed.exe
Size

215.2MB
MD5

99c20603659f442c0d1f8f0c57ad327f
SHA1

d7cbeddfedb55daf98f9356cf4c24cc717e6815d
SHA256

2071deeeb5fa3d6538b8c41a173faf8b7cfba31043597a05b4b3314fea2558d8
SHA512

88c704e98356f89f0868aabb887da39f0dceba15a3ec192794fc873f6853d9e777eeb39859aeb97d4f00bd74db4de9c6624317ed8f52782b094f5c592340ce4e
SSDEEP

6291456:nLmKUE+cJ8IGlZ1OFVZ5PrTDRVriGHosVD9X2KxGt6mq1uN:6Kv+cKtAV3BHLl9fxGbq1uN

Score

1^/10

Malware Config

Signatures

Files

Lark-win32_ia32-6.11.12-signed.exe
.exe windows x86

f8b78b07fc510668725c93e1423f1105

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

Issuer

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

Not Before

01/08/2013, 12:00

Not After

15/01/2038, 12:00

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

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

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0b:4f:98:41:a0:53:6b:48:2f:ea:eb:16:ae:95:94:7c
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

31/01/2023, 00:00

Not After

31/01/2026, 23:59

Subject

SERIALNUMBER=201839742H,CN=Lark Technologies Pte. Ltd.,O=Lark Technologies Pte. Ltd.,L=Singapore,C=SG,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025347

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

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

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

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

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

34:c1:7b:75:30:46:74:05:c3:92:b3:a4:61:0d:d2:45:f0:a1:47:19:60:3c:45:3e:dc:2a:76:3f:45:22:b2:60
Signer

Actual PE Digest

34:c1:7b:75:30:46:74:05:c3:92:b3:a4:61:0d:d2:45:f0:a1:47:19:60:3c:45:3e:dc:2a:76:3f:45:22:b2:60

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

CreateMutexW
CreateDirectoryW
MoveFileExW
MoveFileW
TerminateThread
GetCurrentProcessId
Sleep
TerminateProcess
DeleteCriticalSection
InitializeCriticalSectionEx
RaiseException
CloseHandle
DecodePointer
SetFilePointer
RemoveDirectoryW
ReadFile
LoadLibraryExA
VirtualQuery
GetSystemInfo
WaitForSingleObject
GetFileSize
DeleteFileW
CreateFileW
CopyFileW
GetModuleHandleW
WriteConsoleW
HeapSize
GetProcessHeap
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetOEMCP
IsValidCodePage
FindFirstFileExW
SetConsoleCtrlHandler
FlushFileBuffers
HeapReAlloc
SetFilePointerEx
GetFileSizeEx
GetConsoleCP
ReadConsoleW
GetConsoleMode
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetTimeFormatW
GetCurrentProcess
GetLastError
GetVersionExW
GetProcAddress
MultiByteToWideChar
WideCharToMultiByte
FreeLibrary
GetModuleFileNameW
LoadLibraryExW
LoadLibraryW
CompareFileTime
SetEndOfFile
SetFileTime
WriteFile
SetLastError
SetCurrentDirectoryW
GetCurrentDirectoryW
SetFileAttributesW
GetTempPathW
GetCurrentThreadId
GetTickCount
GetSystemDirectoryW
GetWindowsDirectoryW
FindClose
FindCloseChangeNotification
FindFirstChangeNotificationW
FindFirstFileW
FindNextFileW
GetFileAttributesW
GetFileInformationByHandle
GetLogicalDriveStringsW
GetModuleHandleA
GetStdHandle
GetACP
OpenProcess
MulDiv
GlobalUnlock
GlobalLock
lstrlenW
ExitProcess
LocalFileTimeToFileTime
SystemTimeToFileTime
LocalFree
FormatMessageW
InitializeCriticalSectionAndSpinCount
FreeResource
LoadResource
LockResource
SizeofResource
FindResourceW
CreateFileA
GlobalAlloc
GlobalFree
GetLocalTime
lstrcpynW
lstrcmpiW
lstrcpyW
VerSetConditionMask
GetEnvironmentVariableW
GetDiskFreeSpaceExW
GetFinalPathNameByHandleW
QueryDosDeviceW
VerifyVersionInfoW
AllocConsole
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
K32EnumProcessModules
K32GetModuleFileNameExW
K32GetProcessImageFileNameW
CreateEventW
WaitForMultipleObjects
GetExitCodeProcess
SetDllDirectoryW
GetUserDefaultUILanguage
DuplicateHandle
WaitForSingleObjectEx
SwitchToThread
GetCurrentThread
GetExitCodeThread
GetNativeSystemInfo
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
QueryPerformanceCounter
QueryPerformanceFrequency
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
EncodePointer
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
SetEvent
ResetEvent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
OutputDebugStringW
CreateTimerQueue
SignalObjectAndWait
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
GetThreadTimes
FreeLibraryAndExitThread
VirtualAlloc
VirtualProtect
VirtualFree
SetProcessAffinityMask
ReleaseSemaphore
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
WaitForMultipleObjectsEx
RtlUnwind
ExitThread
ResumeThread
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
SetStdHandle
GetFileType
GetTimeZoneInformation
HeapFree
HeapAlloc
GetDateFormatW
RtlCaptureStackBackTrace

user32

CreateWindowExW
IsWindow
DestroyWindow
SetWindowPos
IsWindowVisible
IsIconic
IsZoomed
CharNextW
SetFocus
GetActiveWindow
GetFocus
GetKeyState
SetCapture
ReleaseCapture
SetTimer
KillTimer
BeginPaint
EndPaint
GetUpdateRect
InvalidateRect
GetClientRect
GetCursorPos
ScreenToClient
MapWindowPoints
GetSysColor
IntersectRect
IsRectEmpty
PtInRect
GetWindowLongW
SetWindowLongW
GetParent
GetWindow
LoadImageW
GetMonitorInfoW
wsprintfW
SetCursor
CallWindowProcW
RegisterClassW
RegisterClassExW
GetClassInfoExW
ShowWindow
EnableWindow
GetSystemMetrics
GetMenu
PostMessageW
GetPropW
AdjustWindowRectEx
MoveWindow
SetWindowRgn
MessageBoxW
UpdateLayeredWindow
GetWindowRgn
CharPrevW
DrawTextW
FillRect
SetRect
CreatePopupMenu
DestroyMenu
EnableMenuItem
AppendMenuW
TrackPopupMenu
CreateCaret
GetCaretBlinkTime
HideCaret
ShowCaret
SetCaretPos
GetCaretPos
ClientToScreen
IsWindowEnabled
UpdateWindow
EqualRect
GetWindowTextW
GetWindowTextLengthW
wsprintfA
DrawTextA
CreateAcceleratorTableW
InvalidateRgn
GetGUIThreadInfo
GetKeyboardLayout
GetKeyNameTextW
MapVirtualKeyExW
GetShellWindow
GetWindowThreadProcessId
PostQuitMessage
EnumChildWindows
EnumWindows
DispatchMessageW
TranslateMessage
GetMessageW
RegisterWindowMessageW
MonitorFromWindow
CharUpperW
MonitorFromPoint
ReleaseDC
GetDC
LoadCursorW
OffsetRect
UnionRect
SetForegroundWindow
SetWindowTextW
GetWindowRect
SetPropW
InflateRect
SendMessageW
UnregisterClassW
DefWindowProcW

advapi32

RegOpenKeyExW
RegSetValueExW
GetTokenInformation
FreeSid
OpenProcessToken
AllocateAndInitializeSid
CheckTokenMembership
DuplicateTokenEx
EqualSid
AdjustTokenPrivileges
RegQueryInfoKeyW
GetUserNameW
RegLoadKeyW
RegEnumKeyExW
RegCloseKey
LookupPrivilegeValueW

shell32

DragQueryFileW
SHGetSpecialFolderLocation
SHCreateDirectoryExW
SHChangeNotify
SHGetPathFromIDListW
SHBrowseForFolderW
SHGetSpecialFolderPathW
ShellExecuteW

comctl32

_TrackMouseEvent
InitCommonControlsEx
ord17

gdiplus

GdipSetTextRenderingHint
GdipSetSmoothingMode
GdipDeleteGraphics
GdipCreateFromHDC
GdipDisposeImage
GdipCloneImage
GdipLoadImageFromStreamICM
GdipLoadImageFromStream
GdipSetPenMode
GdipDeletePen
GdipCreatePen1
GdipCreateSolidFill
GdipDeleteBrush
GdipCloneBrush
GdipAddPathArc
GdipAddPathLine
GdipDrawRectangleI
GdipCreatePath
GdipFree
GdipAlloc
GdiplusShutdown
GdiplusStartup
GdipSetStringFormatAlign
GdipSetStringFormatLineAlign
GdipSetStringFormatTrimming
GdipGetImageWidth
GdipGetImageHeight
GdipDrawPath
GdipImageGetFrameDimensionsCount
GdipImageGetFrameDimensionsList
GdipImageGetFrameCount
GdipImageSelectActiveFrame
GdipGetPropertyItemSize
GdipGetPropertyItem
GdipDrawImageRectI
GdipFillRectangleI
GdipFillPath
GdipCreateFontFromDC
GdipCreateFontFromLogfontA
GdipDeleteFont
GdipDrawString
GdipMeasureString
GdipStringFormatGetGenericTypographic
GdipSetInterpolationMode
GdipDeleteStringFormat
GdipCloneStringFormat
GdipDeletePath
GdipRotateWorldTransform
GdipTranslateWorldTransform
GdipSetStringFormatFlags

imm32

ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow

shlwapi

PathIsNetworkPathW
PathIsRelativeW
SHSetValueW
SHGetValueW
SHDeleteValueW
SHDeleteKeyW
PathFindFileNameW
PathFileExistsW
StrStrIW
PathIsDirectoryW
StrChrW
PathFindExtensionW

ws2_32

gethostname
WSAStartup
gethostbyname

wintrust

CryptCATCatalogInfoFromContext
CryptCATAdminCalcHashFromFileHandle
WinVerifyTrust
WTHelperProvDataFromStateData
CryptCATAdminAcquireContext
CryptCATAdminReleaseContext
CryptCATAdminReleaseCatalogContext
CryptCATAdminEnumCatalogFromHash

crypt32

CertGetNameStringW

gdi32

GetObjectW
GetTextMetricsW
CreateRoundRectRgn
CreateRectRgn
PlayEnhMetaFile
GetEnhMetaFileHeader
CreateEnhMetaFileW
CloseEnhMetaFile
SelectObject
SaveDC
RestoreDC
Rectangle
RemoveFontMemResourceEx
AddFontMemResourceEx
GetStockObject
DeleteObject
DeleteDC
CreatePen
CreateFontIndirectW
CreateDIBitmap
CreateCompatibleDC
PtInRegion
CreateCompatibleBitmap
BitBlt
GetDeviceCaps
SetWindowOrgEx
SetBitmapBits
GetBitmapBits
GetTextExtentPointA
CreatePatternBrush
EnumFontFamiliesExW
GdiFlush
TextOutW
MoveToEx
GetObjectA
SetTextColor
SetStretchBltMode
StretchBlt
SetBkMode
SetBkColor
SelectPalette
ExtSelectClipRgn
SelectClipRgn
RealizePalette
LineTo
GetTextExtentPoint32W
GetDIBits
GetCurrentObject
GetClipBox
GetCharABCWidthsW
CreateSolidBrush
CreateRectRgnIndirect
CreatePenIndirect
CreateDCA
CombineRgn
CreateDIBSection

ole32

CoInitialize
CoInitializeSecurity
CoTaskMemFree
CoTaskMemAlloc
CoUninitialize
OleLockRunning
CLSIDFromProgID
CLSIDFromString
CreateStreamOnHGlobal
ReleaseStgMedium
OleDuplicateData
DoDragDrop
RegisterDragDrop
CoCreateInstance

oleaut32

SysStringLen
SysAllocString
VariantClear
CreateErrorInfo
SetErrorInfo
VariantChangeType
GetErrorInfo
VariantInit
SysFreeString
VariantCopy
SysAllocStringLen

Exports

Exports

_cJSON_AddArrayToObject@8
_cJSON_AddBoolToObject@12
_cJSON_AddFalseToObject@8
_cJSON_AddItemReferenceToArray@8
_cJSON_AddItemReferenceToObject@12
_cJSON_AddItemToArray@8
_cJSON_AddItemToObject@12
_cJSON_AddItemToObjectCS@12
_cJSON_AddNullToObject@8
_cJSON_AddNumberToObject@16
_cJSON_AddObjectToObject@8
_cJSON_AddRawToObject@12
_cJSON_AddStringToObject@12
_cJSON_AddTrueToObject@8
_cJSON_Compare@12
_cJSON_CreateArray@0
_cJSON_CreateArrayReference@4
_cJSON_CreateBool@4
_cJSON_CreateDoubleArray@8
_cJSON_CreateFalse@0
_cJSON_CreateFloatArray@8
_cJSON_CreateIntArray@8
_cJSON_CreateNull@0
_cJSON_CreateNumber@8
_cJSON_CreateObject@0
_cJSON_CreateObjectReference@4
_cJSON_CreateRaw@4
_cJSON_CreateString@4
_cJSON_CreateStringArray@8
_cJSON_CreateStringReference@4
_cJSON_CreateTrue@0
_cJSON_Delete@4
_cJSON_DeleteItemFromArray@8
_cJSON_DeleteItemFromObject@8
_cJSON_DeleteItemFromObjectCaseSensitive@8
_cJSON_DetachItemFromArray@8
_cJSON_DetachItemFromObject@8
_cJSON_DetachItemFromObjectCaseSensitive@8
_cJSON_DetachItemViaPointer@8
_cJSON_Duplicate@8
_cJSON_GetArrayItem@8
_cJSON_GetArraySize@4
_cJSON_GetErrorPtr@0
_cJSON_GetObjectItem@8
_cJSON_GetObjectItemCaseSensitive@8
_cJSON_GetStringValue@4
_cJSON_HasObjectItem@8
_cJSON_InitHooks@4
_cJSON_InsertItemInArray@12
_cJSON_IsArray@4
_cJSON_IsBool@4
_cJSON_IsFalse@4
_cJSON_IsInvalid@4
_cJSON_IsNull@4
_cJSON_IsNumber@4
_cJSON_IsObject@4
_cJSON_IsRaw@4
_cJSON_IsString@4
_cJSON_IsTrue@4
_cJSON_Minify@4
_cJSON_Parse@4
_cJSON_ParseWithOpts@12
_cJSON_Print@4
_cJSON_PrintBuffered@12
_cJSON_PrintPreallocated@16
_cJSON_PrintUnformatted@4
_cJSON_ReplaceItemInArray@12
_cJSON_ReplaceItemInObject@12
_cJSON_ReplaceItemInObjectCaseSensitive@12
_cJSON_ReplaceItemViaPointer@12
_cJSON_SetNumberHelper@12
_cJSON_Version@0
_cJSON_free@4
_cJSON_malloc@4

Sections

.text
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 336KB - Virtual size: 336KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 21KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 213.6MB - Virtual size: 213.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 68KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f8b78b07fc510668725c93e1423f1105

Code Sign

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5cCertificate

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

0b:4f:98:41:a0:53:6b:48:2f:ea:eb:16:ae:95:94:7cCertificate

Extended Key Usages

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

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

Extended Key Usages

Key Usages

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

Key Usages

34:c1:7b:75:30:46:74:05:c3:92:b3:a4:61:0d:d2:45:f0:a1:47:19:60:3c:45:3e:dc:2a:76:3f:45:22:b2:60Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

comctl32

gdiplus

imm32

shlwapi

ws2_32

wintrust

crypt32

gdi32

ole32

oleaut32

Exports

Exports

Sections

.text Size: 1.2MB - Virtual size: 1.2MB

.rdata Size: 336KB - Virtual size: 336KB

.data Size: 21KB - Virtual size: 30KB

.rsrc Size: 213.6MB - Virtual size: 213.6MB

.reloc Size: 68KB - Virtual size: 68KB

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

0b:4f:98:41:a0:53:6b:48:2f:ea:eb:16:ae:95:94:7c
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

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

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

34:c1:7b:75:30:46:74:05:c3:92:b3:a4:61:0d:d2:45:f0:a1:47:19:60:3c:45:3e:dc:2a:76:3f:45:22:b2:60
Signer

.text
Size: 1.2MB - Virtual size: 1.2MB

.rdata
Size: 336KB - Virtual size: 336KB

.data
Size: 21KB - Virtual size: 30KB

.rsrc
Size: 213.6MB - Virtual size: 213.6MB

.reloc
Size: 68KB - Virtual size: 68KB