difxapi[.]dll | Triage

Sharing

Copy URL Twitter E-mail

General

Target

difxapi.dll
Size

340KB
MD5

1d9b1223916f2cd015c5f2dd65063b09
SHA1

bde52f16d5ab6906f5af6f0fca22980217776e86
SHA256

86cc76257652321ec8039fd96b167d9c32e3ef28e5fc9c91ac54bb0a44ccf65c
SHA512

9837546a697cc15fec9ed5928b2861ca8800ae2558a9b10f1c1a2d7a407467a4a260811f19ea53db49fb599ceaca6e505601662b4f66731727de379789129ffc
SSDEEP

6144:tKTsr5nzmLNaZZ4MISeUlajT1/thBBG3EwmjzEGu9:tKorJzmpAiSe+ajVthBKPmjzEGu9

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
difxapi.dll

Files

difxapi.dll
.dll windows:10 windows x86 arch:x86

29b1f48f3377d0e578258ea2479bad0e

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

difxapi.pdb

Imports

ntdll

RtlFormatCurrentUserKeyPath
RtlFreeUnicodeString
NtClose
RtlInitUnicodeString
NtQueryValueKey
RtlUnwind
RtlNtStatusToDosError
NtOpenKey
VerSetConditionMask

kernel32

LoadLibraryW
FreeLibrary
GetVersionExW
VerifyVersionInfoW
SetFileAttributesW
DeleteFileW
GetFullPathNameW
GetFileAttributesW
CreateDirectoryW
GetTempFileNameW
MoveFileExW
CreateFileW
CloseHandle
FindFirstFileW
lstrcmpW
FindNextFileW
FindClose
RemoveDirectoryW
GetCurrentProcess
GetFileSize
CreateFileMappingW
MapViewOfFile
MultiByteToWideChar
UnmapViewOfFile
CopyFileW
GetSystemWindowsDirectoryW
GetEnvironmentVariableW
WideCharToMultiByte
CompareStringW
LocalFree
GetSystemDirectoryW
LocalAlloc
LocalReAlloc
IsDebuggerPresent
CreateMutexW
WaitForSingleObject
ReleaseMutex
DeviceIoControl
GetSystemTimeAsFileTime
Sleep
HeapSize
RaiseException
GetCommandLineA
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
GetSystemInfo
VirtualAlloc
VirtualProtect
FindResourceExW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
ExitProcess
LoadLibraryExW
VirtualFree
GetStdHandle
GetFileType
InitializeCriticalSectionAndSpinCount
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
GetTickCount
GetEnvironmentStringsW
FreeEnvironmentStringsW
EncodePointer
OutputDebugStringA
WriteFile
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
LCMapStringW
GetConsoleCP
GetConsoleMode
SetFilePointer
GetStringTypeW
SetStdHandle
WriteConsoleW
FlushFileBuffers
LoadResource
GetThreadLocale
CompareStringOrdinal
ExpandEnvironmentStringsW
WaitForSingleObjectEx
LockResource
SizeofResource
SetLastError
CreateEventW
SetEvent
WaitForMultipleObjectsEx
SetEndOfFile
lstrcmpiW
GetLastError
DeleteCriticalSection
HeapDestroy
HeapReAlloc
OutputDebugStringW
InitializeCriticalSection
LeaveCriticalSection
EnterCriticalSection
HeapCreate
DebugBreak
GetModuleHandleW
GetProcessHeap
GetProcAddress
HeapAlloc
FormatMessageW
GetCurrentThreadId
GetModuleHandleExW
HeapFree
GetModuleFileNameA
VirtualQuery

user32

UnregisterClassA
CharLowerW

setupapi

SetupDiOpenDevRegKey
SetupDiGetDeviceInstanceIdW
SetupDiCreateDeviceInfoList
SetupDiGetDeviceInstallParamsW
SetupDiSetDeviceInstallParamsW
SetupDiBuildDriverInfoList
SetupDiCallClassInstaller
SetupDiGetSelectedDriverW
SetupDiGetDriverInfoDetailW
SetupDiOpenDeviceInfoW
SetupDiSetSelectedDevice
SetupDiClassNameFromGuidW
CM_Get_DevNode_Status
CM_Locate_DevNodeW
CM_Get_Device_ID_List_SizeW
CM_Get_Device_ID_ListW
SetupDiGetDeviceRegistryPropertyW
SetupDiEnumDeviceInfo
CM_Enumerate_Classes
SetupDiOpenClassRegKey
CM_Get_Device_IDW
SetupDiGetClassDevsW
CM_Setup_DevNode
SetupDefaultQueueCallbackW
SetupCommitFileQueueW
SetupQueueCopyW
SetupTermDefaultQueueCallback
SetupInitDefaultQueueCallbackEx
SetupCloseFileQueue
SetupOpenFileQueue
SetupGetFieldCount
SetupGetIntField
SetupGetStringFieldW
SetupFindNextMatchLineW
SetupFindNextLine
SetupInstallServicesFromInfSectionW
SetupInstallFromInfSectionW
SetupPromptReboot
SetupInstallFilesFromInfSectionW
SetupFindFirstLineW
SetupOpenAppendInfFileW
SetupGetLineCountW
SetupGetTargetPathW
SetupDiSetDeviceRegistryPropertyW
SetupDiGetActualSectionToInstallW
SetupCloseInfFile
pSetupGetGlobalFlags
pSetupSetGlobalFlags
SetupOpenInfFileW
SetupCopyOEMInfW
SetupDiDestroyDeviceInfoList
CM_Query_And_Remove_SubTreeW

advapi32

RegCloseKey
AllocateAndInitializeSid
CheckTokenMembership
FreeSid
RegOpenKeyExW
RegCreateKeyExW
RegSetValueExW
RegDeleteKeyW
RegQueryValueExW
RegDeleteValueW
GetLengthSid
InitializeAcl
AddAccessAllowedAce
InitializeSecurityDescriptor
SetSecurityDescriptorDacl
SetEntriesInAclW
QueryServiceStatus
OpenSCManagerW
OpenServiceW
ControlService
CloseServiceHandle
DeleteService
StartServiceW

ole32

StringFromCLSID
CoTaskMemFree
CoCreateInstance
CoUninitialize
CoInitialize

wintrust

WinVerifyTrust
CryptCATAdminCalcHashFromFileHandle

crypt32

CertFreeCertificateContext
CertFreeCTLContext
CertGetCTLContextProperty
CryptQueryObject

Exports

Exports

DIFXAPISetLogCallbackA
DIFXAPISetLogCallbackW
DriverPackageGetPathA
DriverPackageGetPathW
DriverPackageInstallA
DriverPackageInstallW
DriverPackagePreinstallA
DriverPackagePreinstallW
DriverPackageUninstallA
DriverPackageUninstallW
SetDifxLogCallbackA
SetDifxLogCallbackW

Sections

.text
Size: 311KB - Virtual size: 311KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

29b1f48f3377d0e578258ea2479bad0e

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

ntdll

kernel32

user32

setupapi

advapi32

ole32

wintrust

crypt32

Exports

Exports

Sections

.text Size: 311KB - Virtual size: 311KB

.data Size: 4KB - Virtual size: 11KB

.idata Size: 6KB - Virtual size: 6KB

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

.reloc Size: 15KB - Virtual size: 14KB

.text
Size: 311KB - Virtual size: 311KB

.data
Size: 4KB - Virtual size: 11KB

.idata
Size: 6KB - Virtual size: 6KB

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

.reloc
Size: 15KB - Virtual size: 14KB