DismApi[.]dll | Triage

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General

Target

DismApi.dll
Size

743KB
MD5

64c037a1eb5c9ff844c7bee634b37090
SHA1

243cdc563e574acde9e255559797ac5f196d0927
SHA256

b88cb967854bd1cb34a7add3274125c29714e2a64bce568c99c4c0abd9757803
SHA512

e467e2b51025b15abcedf9f89e298866a0f9d425222151accca1e80483a41407741cf1b72f5b21b2603f36520460da3d725f68f4024b5b428db89edad6631872
SSDEEP

12288:V8rvm+YyKRs39ZG2P7LdtAgia/SfFX/68uNgKw2OnhO7tPrQ:urvm+Yygs39ZG2PXDSCxOhO7tPrQ

Score

1^/10

Malware Config

Signatures

Files

DismApi.dll
.dll windows:10 windows x86 arch:x86

a5f854b960dab097d24329879dd2812b

Code Sign

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

04/03/2020, 18:30

Not After

03/03/2021, 18:30

Subject

CN=Microsoft Windows,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

f1:ea:0f:46:9b:10:c9:3d:65:21:cd:31:0a:f8:92:f6:1d:92:b2:76:ca:0c:bf:6e:19:c6:38:b7:d8:9e:81:ce
Signer

Actual PE Digest

f1:ea:0f:46:9b:10:c9:3d:65:21:cd:31:0a:f8:92:f6:1d:92:b2:76:ca:0c:bf:6e:19:c6:38:b7:d8:9e:81:ce

Digest Algorithm

sha256

PE Digest Matches

true

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_REMOVABLE_RUN_FROM_SWAP
IMAGE_FILE_NET_RUN_FROM_SWAP
IMAGE_FILE_DLL

PDB Paths

DismApi.pdb

Imports

msvcrt

feof
fgetws
_wfopen
wcstok_s
fclose
iswctype
toupper
strrchr
_wcslwr_s
towlower
wcsstr
wcsrchr
_vsnwprintf
_wcsnicmp
memmove
realloc
_errno
_onexit
__dllonexit
_unlock
_lock
??1type_info@@UAE@XZ
_except_handler4_common
?terminate@@YAXXZ
_initterm
_amsg_exit
_XcptFilter
_CxxThrowException
_callnewh
??0exception@@QAE@XZ
wcscpy_s
_vscprintf
vsprintf_s
calloc
_vsnprintf
?what@exception@@UBEPBDXZ
??0exception@@QAE@ABV0@@Z
??1exception@@UAE@XZ
??0exception@@QAE@ABQBD@Z
iswspace
swscanf_s
_wtoi
memcpy
memcmp
_ftol2
wcschr
_wcstoui64
wcstoul
_purecall
_wcsicmp
iswalpha
malloc
free
vswprintf_s
_vscwprintf
memmove_s
memcpy_s
__CxxFrameHandler3
memset

advapi32

EqualSid
FreeSid
CheckTokenMembership
RegCreateKeyExW
RegSetValueExW
AddAccessAllowedAce
EventUnregister
EventProviderEnabled
EventRegister
EventWriteTransfer
AllocateAndInitializeSid
OpenThreadToken
GetTokenInformation
OpenProcessToken
InitializeAcl
SetSecurityDescriptorDacl
RegisterTraceGuidsW
GetTraceEnableLevel
GetTraceEnableFlags
GetTraceLoggerHandle
TraceEvent
UnregisterTraceGuids
RegCloseKey
RegOpenKeyExW
RegQueryValueExW
GetLengthSid
InitializeSecurityDescriptor

kernel32

TlsFree
FormatMessageA
CreateFileMappingW
MapViewOfFile
VirtualQuery
GetModuleFileNameA
WriteFile
TlsGetValue
GetVersionExW
GetProcAddress
GetModuleHandleW
InitializeCriticalSection
DeleteCriticalSection
RaiseException
EnterCriticalSection
LeaveCriticalSection
GetCurrentThreadId
GetCurrentProcessId
SizeofResource
LockResource
LoadResource
FindResourceExW
GetSystemInfo
GetLastError
GetCommandLineW
GetFileAttributesW
IsWow64Process
GetCurrentProcess
LoadLibraryExW
FreeLibrary
OutputDebugStringW
WaitForMultipleObjectsEx
WaitForSingleObject
FormatMessageW
LocalFree
FileTimeToLocalFileTime
FileTimeToSystemTime
CompareStringW
HeapFree
GetProcessHeap
GetModuleFileNameW
CreateMutexW
GetThreadUILanguage
OutputDebugStringA
GetModuleHandleExW
WideCharToMultiByte
HeapSize
HeapReAlloc
HeapAlloc
HeapDestroy
GetEnvironmentVariableW
MultiByteToWideChar
Sleep
QueryPerformanceCounter
GetSystemTimeAsFileTime
GetTickCount
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
CreateMutexA
ReleaseMutex
GetVersion
CreateFileA
DeleteFileA
CreateFileMappingA
CreateDirectoryW
GetCurrentThread
FlushFileBuffers
CopyFileExW
DeleteFileW
SetFileInformationByHandle
GetFileInformationByHandle
SetFileAttributesW
FindClose
DeviceIoControl
FindNextFileW
FindFirstFileW
GetFileInformationByHandleEx
SetLastError
CloseHandle
CreateFileW
SetFilePointer
GetFullPathNameW
ReadFile
GetSystemWindowsDirectoryW
DebugBreak
LocalAlloc
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
GetWindowsDirectoryW
IsDebuggerPresent
ExitProcess
GetFileSize
GetLocalTime
TlsAlloc
UnmapViewOfFile
TlsSetValue
MoveFileExW
GetLocaleInfoEx
GetSystemTime
GetTimeFormatEx
SetErrorMode
CreateEventW
ResumeThread
DuplicateHandle
GetTempFileNameW
ResetEvent
CreateThread
GetFinalPathNameByHandleW
GetFileSizeEx
ExpandEnvironmentStringsW
SearchPathW
SetEvent

ole32

CoSetProxyBlanket
CoCreateInstance
StringFromGUID2
CoUninitialize
CoInitializeEx

user32

CharLowerBuffW

oleaut32

VariantTimeToSystemTime
SystemTimeToVariantTime
SysAllocStringLen
VarBstrCat
SysStringByteLen
SysAllocStringByteLen
SysAllocString
LoadTypeLi
LoadRegTypeLi
VariantClear
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayGetElemsize
SafeArrayGetDim
SafeArrayDestroy
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayCreate
GetErrorInfo
VarBstrCmp
SysStringLen
SysFreeString

ntdll

RtlRaiseStatus
NtOpenFile
NtYieldExecution
NtQueryInformationFile
RtlExpandEnvironmentStrings
NtClose
RtlReAllocateHeap
NtReadFile
RtlInitUnicodeString
NtWriteFile
RtlFreeHeap
RtlAllocateHeap
RtlDosPathNameToNtPathName_U_WithStatus
NtSetInformationFile
RtlNtStatusToDosError
RtlGetVersion
NtWaitForSingleObject

version

GetFileVersionInfoSizeExW
GetFileVersionInfoExW
VerQueryValueW

Exports

Exports

DismAddCapability
DismAddDriver
DismAddPackage
DismApplyUnattend
DismCheckImageHealth
DismCleanupMountpoints
DismCloseSession
DismCommitImage
DismDelete
DismDisableFeature
DismEnableFeature
DismGetCapabilities
DismGetCapabilityInfo
DismGetDriverInfo
DismGetDrivers
DismGetFeatureInfo
DismGetFeatureParent
DismGetFeatures
DismGetImageInfo
DismGetLastErrorMessage
DismGetMountedImageInfo
DismGetPackageInfo
DismGetPackageInfoEx
DismGetPackages
DismGetReservedStorageState
DismInitialize
DismMountImage
DismOpenSession
DismRemountImage
DismRemoveCapability
DismRemoveDriver
DismRemovePackage
DismRestoreImageHealth
DismSetReservedStorageState
DismShutdown
DismUnmountImage
_DismAddCapabilityEx
_DismAddDriverEx
_DismAddPackage2
_DismAddPackageFamilyToUninstallBlocklist
_DismAddProvisionedAppxPackage
_DismApplyCustomDataImage
_DismApplyFfuImage
_DismApplyProvisioningPackage
_DismCleanImage
_DismEnableDisableFeature
_DismExportDriver
_DismExportSource
_DismExportSourceEx
_DismGetCapabilitiesEx
_DismGetCapabilityInfoEx
_DismGetCurrentEdition
_DismGetDriversEx
_DismGetEffectiveSystemUILanguage
_DismGetFeaturesEx
_DismGetInstallLanguage
_DismGetKCacheBinaryValue
_DismGetKCacheDwordValue
_DismGetKCacheStringValue
_DismGetLastCBSSessionID
_DismGetNonRemovableAppsPolicy
_DismGetOSUninstallWindow
_DismGetOsInfo
_DismGetProductKeyInfo
_DismGetProvisionedAppxPackages
_DismGetProvisioningPackageInfo
_DismGetRegistryMountPoint
_DismGetStateFromCBSSessionID
_DismGetTargetCompositionEditions
_DismGetTargetEditions
_DismGetTargetVirtualEditions
_DismGetUsedSpace
_DismInitiateOSUninstall
_DismOptimizeImage
_DismOptimizeProvisionedAppxPackages
_DismRemoveOSUninstall
_DismRemovePackageFamilyFromUninstallBlocklist
_DismRemoveProvisionedAppxPackage
_DismRemoveProvisionedAppxPackageAllUsers
_DismRevertPendingActions
_DismSetAllIntlSettings
_DismSetAppXProvisionedDataFile
_DismSetEdition
_DismSetEdition2
_DismSetFirstBootCommandLine
_DismSetMachineName
_DismSetOSUninstallWindow
_DismSetProductKey
_DismSetSkuIntlDefaults
_DismSplitFfuImage
_DismStage
_DismSysprepCleanup
_DismSysprepGeneralize
_DismSysprepSpecialize
_DismValidateProductKey

Sections

.text
Size: 665KB - Virtual size: 665KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

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: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 41KB - Virtual size: 41KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a5f854b960dab097d24329879dd2812b

Code Sign

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

f1:ea:0f:46:9b:10:c9:3d:65:21:cd:31:0a:f8:92:f6:1d:92:b2:76:ca:0c:bf:6e:19:c6:38:b7:d8:9e:81:ceSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

advapi32

kernel32

ole32

user32

oleaut32

ntdll

version

Exports

Exports

Sections

.text Size: 665KB - Virtual size: 665KB

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

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

.rsrc Size: 12KB - Virtual size: 12KB

.reloc Size: 41KB - Virtual size: 41KB

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

f1:ea:0f:46:9b:10:c9:3d:65:21:cd:31:0a:f8:92:f6:1d:92:b2:76:ca:0c:bf:6e:19:c6:38:b7:d8:9e:81:ce
Signer

.text
Size: 665KB - Virtual size: 665KB

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

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

.rsrc
Size: 12KB - Virtual size: 12KB

.reloc
Size: 41KB - Virtual size: 41KB