DismApi[.]dll | Triage

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General

Target

DismApi.dll
Size

752KB
MD5

d08002f0cf025d93e10087136b133032
SHA1

b95ba80e4bfbde1f096edd4274b9834a92565d06
SHA256

7b2ea110e74800ebf0ff33d9cc6d7a40f0097b4ce4a0667ede5c5c84d7b44db9
SHA512

f8bc38d9e43137be8793a519c68374e9a3cc8774beaceb830e270c8e9d80ba0ed41a2a41f6f022f207b6cbdd7f521069eff407ba39b7e0776aaf856f3e6d5c61
SSDEEP

12288:7l2acS1ngfkpkEPTaIJMP0KOvE/E8CnFOc:7lLcS1ngfCdPTaIA06E8mFOc

Score

1^/10

Malware Config

Signatures

Files

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

7a62ff5acce288c9226e5ffe98214db5

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

7b:be:b4:e0:10:10:c6:60:ed:4b:ea:22:4f:64:3b:ea:54:6e:21:7a:56:79:fb:25:a0:dd:b9:02:59:c7:53:e8
Signer

Actual PE Digest

7b:be:b4:e0:10:10:c6:60:ed:4b:ea:22:4f:64:3b:ea:54:6e:21:7a:56:79:fb:25:a0:dd:b9:02:59:c7:53:e8

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

wcsrchr
wcsstr
towlower
_wcsnicmp
_vsnwprintf
_wcslwr_s
strrchr
iswctype
fclose
wcstok_s
realloc
_errno
_onexit
_wfopen
_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
wcschr
_wcstoui64
wcstoul
fgetws
feof
_purecall
_wcsicmp
iswalpha
malloc
memcpy
memcmp
_ftol2
__dllonexit
free
vswprintf_s
_vscwprintf
memmove_s
memcpy_s
__CxxFrameHandler3
memset

advapi32

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

kernel32

MoveFileExW
ReadFile
SetFilePointer
TlsSetValue
UnmapViewOfFile
TlsAlloc
GetLocalTime
GetFileSize
ExitProcess
TlsGetValue
TlsFree
FormatMessageA
GetSystemWindowsDirectoryW
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
CreateFileMappingW
FileTimeToSystemTime
CompareStringW
HeapFree
GetProcessHeap
GetModuleFileNameW
GetThreadUILanguage
OutputDebugStringA
GetModuleHandleExW
WideCharToMultiByte
HeapSize
HeapReAlloc
HeapAlloc
HeapDestroy
MultiByteToWideChar
Sleep
QueryPerformanceCounter
GetSystemTimeAsFileTime
GetTickCount
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
DeviceIoControl
FindNextFileW
GetFullPathNameW
FindFirstFileW
SetLastError
MapViewOfFile
GetLocaleInfoEx
GetSystemTime
GetTimeFormatW
VirtualQuery
GetModuleFileNameA
WriteFile
CreateMutexW
CreateMutexA
ReleaseMutex
GetVersion
CreateFileA
DeleteFileA
CreateFileMappingA
DebugBreak
GetFileSizeEx
GetWindowsDirectoryW
IsDebuggerPresent
FindClose
CreateFileW
CreateEventW
ResumeThread
DuplicateHandle
GetTempFileNameW
ResetEvent
CreateThread
SetEvent
SetErrorMode
ExpandEnvironmentStringsW
DeleteFileW
GetFinalPathNameByHandleW
CreateDirectoryW
GetCurrentThread
FlushFileBuffers
CopyFileExW
SetFileAttributesW
GetFileInformationByHandle
SearchPathW
FileTimeToLocalFileTime
CloseHandle

ole32

CoCreateInstance
CoSetProxyBlanket
StringFromGUID2
CoUninitialize
CoInitializeEx

user32

CharLowerBuffW

oleaut32

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

ntdll

RtlRaiseStatus
NtYieldExecution
RtlInitializeCriticalSection
RtlReAllocateHeap
RtlDeleteCriticalSection
RtlFreeHeap
RtlAllocateHeap
NtSetInformationFile
RtlNtStatusToDosError
RtlGetVersion

version

VerQueryValueW
GetFileVersionInfoSizeExW
GetFileVersionInfoExW

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
DismInitialize
DismMountImage
DismOpenSession
DismRemountImage
DismRemoveCapability
DismRemoveDriver
DismRemovePackage
DismRestoreImageHealth
DismShutdown
DismUnmountImage
_DismAddCapabilityEx
_DismAddDriverEx
_DismAddPackage2
_DismAddPackageFamilyToUninstallBlocklist
_DismAddProvisionedAppxPackage
_DismApplyCustomDataImage
_DismApplyFfuImage
_DismApplyProvisioningPackage
_DismCleanupSession
_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: 673KB - Virtual size: 673KB

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: 5KB

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: 43KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7a62ff5acce288c9226e5ffe98214db5

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

7b:be:b4:e0:10:10:c6:60:ed:4b:ea:22:4f:64:3b:ea:54:6e:21:7a:56:79:fb:25:a0:dd:b9:02:59:c7:53:e8Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

advapi32

kernel32

ole32

user32

oleaut32

ntdll

version

Exports

Exports

Sections

.text Size: 673KB - Virtual size: 673KB

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

.idata Size: 6KB - Virtual size: 5KB

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

.reloc Size: 43KB - Virtual size: 42KB

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

7b:be:b4:e0:10:10:c6:60:ed:4b:ea:22:4f:64:3b:ea:54:6e:21:7a:56:79:fb:25:a0:dd:b9:02:59:c7:53:e8
Signer

.text
Size: 673KB - Virtual size: 673KB

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

.idata
Size: 6KB - Virtual size: 5KB

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

.reloc
Size: 43KB - Virtual size: 42KB