DrvLdr[.]exe | Triage

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General

Target

DrvLdr.exe
Size

500KB
MD5

d3517af851d85103372f10a49747cf7e
SHA1

164e621be2c443609347fd39410f7b198ab3b698
SHA256

7c7d1c7c6bd33e3b71daedcdfb1229a1655d58f92c828c02bcc33cf3d4f2f9e1
SHA512

63a01d828ccee1d5b09a80a3ed86c8f251be0294f136ce0c69d0cd7215cbba2e4babca9f2d7c95840188f090e8f895b8aaec8462b100706427c92342c30e0c26
SSDEEP

6144:TeHy0LXWxxDmyxo0S+rXjnNvDlYBRnQFiwbtcNWVRCu5rpn/NxEb52b:TYLX0BmyxrS+7lmAVRCuRbo

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
DrvLdr.exe

Files

DrvLdr.exe
.exe windows:6 windows x64 arch:x64

Password: infected

d7343acd8a08117f394fbb4463115abc

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

GetProcAddress
FreeLibrary
LoadLibraryExW
HeapCreate
HeapAlloc
HeapDestroy
GetStartupInfoW
WriteProcessMemory
ResumeThread
UnmapViewOfFile
DeleteFileW
CreateProcessW
GetModuleHandleW
GetCurrentProcessId
ReadFile
WriteFile
SetFilePointer
TerminateProcess
Sleep
VirtualUnlock
VirtualLock
TerminateThread
CreateThread
HeapSetInformation
GetSystemDirectoryW
CreateFileW
VirtualFree
CreateEventW
GetProcessHeap
GetConsoleScreenBufferInfo
SetConsoleTextAttribute
GetCommandLineW
GetStdHandle
GetModuleFileNameW
FormatMessageW
GetSystemInfo
VirtualAllocEx
ReadProcessMemory
GetSystemTimeAsFileTime
VirtualFreeEx
CreateFileMappingW
MapViewOfFile
GetFirmwareEnvironmentVariableW
GetConsoleMode
ExpandEnvironmentStringsW
LoadLibraryW
GetCurrentDirectoryW
WriteConsoleW
RtlCompareMemory
CloseHandle
WaitForSingleObject
GetLastError
GetCurrentProcess
VirtualAlloc
SetDllDirectoryW
SetLastError
HeapReAlloc
HeapSize
GetFileSizeEx
SetFilePointerEx
GetStringTypeW
SetStdHandle
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
WideCharToMultiByte
MultiByteToWideChar
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
GetConsoleOutputCP
FlushFileBuffers
GetFileType
LCMapStringW
CompareStringW
FlsFree
FlsSetValue
FlsGetValue
FlsAlloc
HeapFree
GetCommandLineA
GetModuleHandleExW
ExitProcess
RtlPcToFileHeader
RaiseException
EncodePointer
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
RtlUnwindEx
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
InitializeSListHead
GetCurrentThreadId
QueryPerformanceCounter

advapi32

RegDeleteKeyW
RegCreateKeyExW
RegEnumKeyExW
RegSetValueExW
RegOpenKeyExW
RegQueryValueExW
RegCloseKey

ntdll

NtSetInformationProcess
LdrLockLoaderLock
RtlTimeToSecondsSince1970
NtLoadDriver
NtTerminateProcess
LdrUnlockLoaderLock
NtSetValueKey
NtOpenSection
NtQueryObject
LdrFindEntryForAddress
NtOpenFile
NtWaitForSingleObject
NtFsControlFile
RtlLengthRequiredSid
NtUnloadDriver
RtlEqualUnicodeString
LdrGetProcedureAddress
RtlNtdllName
NtDuplicateObject
NtSetSecurityObject
RtlDoesFileExists_U
NtCreateMutant
RtlGetVersion
LdrUnloadDll
NtAlpcDisconnectPort
RtlCreateSecurityDescriptor
NtAlpcCreatePort
RtlCreateAcl
NtAlpcAcceptConnectPort
RtlLengthSid
NtReplyWaitReceivePort
RtlSetDaclSecurityDescriptor
RtlSubAuthoritySid
RtlInitializeSid
NtDeviceIoControlFile
NtOpenKey
NtMapViewOfSection
NtUnmapViewOfSection
LdrLoadDll
NtCreateSection
LdrAccessResource
RtlSetLastWin32Error
NtCreateFile
RtlNtStatusToDosError
RtlEqualSid
RtlInitString
RtlFreeHeap
NtQueryDirectoryObject
RtlFreeSid
RtlExpandEnvironmentStrings
NtOpenDirectoryObject
NtFlushBuffersFile
RtlUnicodeStringToAnsiString
NtClose
NtQueryInformationToken
RtlAllocateAndInitializeSid
LdrFindResource_U
RtlDosPathNameToNtPathName_U
RtlInitUnicodeString
NtOpenProcess
RtlFreeUnicodeString
NtQueryInformationProcess
NtWriteFile
NtQuerySystemInformation
RtlAllocateHeap
NtOpenThread
NtFreeVirtualMemory
NtOpenProcessToken
RtlAnsiStringToUnicodeString
RtlFreeAnsiString
NtAdjustPrivilegesToken
RtlImageNtHeader
RtlAddAccessAllowedAce

rpcrt4

UuidCreate

setupapi

SetupDiDestroyDeviceInfoList
SetupDiCreateDeviceInfoW
SetupDiSetDeviceRegistryPropertyW
SetupDiCallClassInstaller
SetupDiGetINFClassW
SetupDiCreateDeviceInfoList
SetupDiRemoveDevice

newdev

UpdateDriverForPlugAndPlayDevicesW

bcrypt

BCryptEncrypt
BCryptDestroyKey
BCryptOpenAlgorithmProvider
BCryptGenerateSymmetricKey
BCryptCloseAlgorithmProvider

msdelta

DeltaFree
ApplyDeltaB

Sections

.text
Size: 178KB - Virtual size: 178KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 87KB - Virtual size: 87KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 11KB - Virtual size: 16KB

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

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 76KB - Virtual size: 75KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rbdata
Size: 112KB - Virtual size: 112KB

IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

Password: infected

d7343acd8a08117f394fbb4463115abc

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

ntdll

rpcrt4

setupapi

newdev

bcrypt

msdelta

Sections

.text Size: 178KB - Virtual size: 178KB

.rdata Size: 87KB - Virtual size: 87KB

.data Size: 11KB - Virtual size: 16KB

.pdata Size: 9KB - Virtual size: 8KB

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 76KB - Virtual size: 75KB

.reloc Size: 3KB - Virtual size: 2KB

.rbdata Size: 112KB - Virtual size: 112KB

.text
Size: 178KB - Virtual size: 178KB

.rdata
Size: 87KB - Virtual size: 87KB

.data
Size: 11KB - Virtual size: 16KB

.pdata
Size: 9KB - Virtual size: 8KB

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 76KB - Virtual size: 75KB

.reloc
Size: 3KB - Virtual size: 2KB

.rbdata
Size: 112KB - Virtual size: 112KB