DismApi[.]dll | Triage

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General

Target

DismApi.dll
Size

771KB
MD5

730948b0cbb925097dd840987d2a9e93
SHA1

f76e6be9b0e989bb7410e04aa22285e1ae475247
SHA256

92bcdebae7c9e0a1bdc66b5cba95f9a3dd5504d16e92005ca6019564d4b6b7de
SHA512

680b0ae20921b2cc677cdfcf588b0f55fa43b0db886c4f53c7162285f72707b853176a6840f3c110d1bc81675d79a67a3633a5ebef02024af8e8b05de7f40472
SSDEEP

12288:HeAIIPZdSvWKUnf+clG4km+XjFgErcpHaWoabqHJDKRl9kF+Zr9kYV7a:9IUZdSvWKef+clG4B+XRgH1i6n9kYV7a

Score

1^/10

Malware Config

Signatures

Files

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

b439884adb27c96a282e58ec36d0810b

Code Sign

33:00:00:04:60:cf:42:a9:12:31:5f:6f:b3:00:00:00:00:04:60
Certificate

Issuer

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

Not Before

16-11-2023 19:20

Not After

14-11-2024 19:20

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

28:de:bd:d9:85:ef:cd:bb:0d:17:48:d4:ec:50:3d:4e:3e:1a:80:2d:09:d5:82:ce:ed:40:ba:15:e8:3f:0b:dc
Signer

Actual PE Digest

28:de:bd:d9:85:ef:cd:bb:0d:17:48:d4:ec:50:3d:4e:3e:1a:80:2d:09:d5:82:ce:ed:40:ba:15:e8:3f:0b:dc

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

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

advapi32

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

kernel32

GetTimeFormatEx
GetSystemTime
GetLocaleInfoEx
MoveFileExW
TlsSetValue
UnmapViewOfFile
SetErrorMode
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
HeapAlloc
GetProcessHeap
HeapFree
GetModuleHandleExW
GetModuleFileNameA
DebugBreak
IsDebuggerPresent
AcquireSRWLockExclusive
TlsAlloc
AcquireSRWLockShared
ReleaseSRWLockShared
SetLastError
CloseHandle
ReleaseSemaphore
ReleaseMutex
SetThreadpoolTimer
WaitForThreadpoolTimerCallbacks
CloseThreadpoolTimer
WaitForSingleObjectEx
InitializeCriticalSectionEx
OpenSemaphoreW
CreateThreadpoolTimer
CompareStringW
CreateMutexExW
CreateSemaphoreExW
GetThreadUILanguage
OutputDebugStringA
WideCharToMultiByte
HeapSize
HeapReAlloc
HeapDestroy
GetEnvironmentVariableW
MultiByteToWideChar
Sleep
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
QueryPerformanceCounter
GetSystemTimeAsFileTime
GetTickCount
SetFilePointer
GetFullPathNameW
ReadFile
GetSystemWindowsDirectoryW
GetLocalTime
GetFileSize
CreateEventW
ResumeThread
DuplicateHandle
GetTempFileNameW
ResetEvent
ExitProcess
TlsGetValue
TlsFree
FormatMessageA
CreateFileMappingW
MapViewOfFile
VirtualQuery
WriteFile
CreateMutexW
CreateMutexA
GetVersion
CreateFileA
DeleteFileA
CreateFileMappingA
LocalAlloc
GetWindowsDirectoryW
CreateFileW
GetFileInformationByHandleEx
CreateThread
SetEvent
ExpandEnvironmentStringsW
GetFileSizeEx
GetFinalPathNameByHandleW
CreateDirectoryW
GetCurrentThread
FlushFileBuffers
CopyFileExW
DeleteFileW
SetFileInformationByHandle
GetFileInformationByHandle
SetFileAttributesW
FindClose
FindFirstFileW
FindNextFileW
SearchPathW
DeviceIoControl
ReleaseSRWLockExclusive
GetModuleFileNameW

ole32

CoCreateInstance
CoSetProxyBlanket
StringFromGUID2
CoUninitialize
CoInitializeEx

user32

CharLowerBuffW

oleaut32

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

ntdll

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

version

VerQueryValueW
GetFileVersionInfoExW
GetFileVersionInfoSizeExW

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: 690KB - Virtual size: 690KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 7KB - 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: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b439884adb27c96a282e58ec36d0810b

Code Sign

33:00:00:04:60:cf:42:a9:12:31:5f:6f:b3:00:00:00:00:04:60Certificate

Extended Key Usages

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

Key Usages

28:de:bd:d9:85:ef:cd:bb:0d:17:48:d4:ec:50:3d:4e:3e:1a:80:2d:09:d5:82:ce:ed:40:ba:15:e8:3f:0b:dcSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

advapi32

kernel32

ole32

user32

oleaut32

ntdll

version

Exports

Exports

Sections

.text Size: 690KB - Virtual size: 690KB

.data Size: 8KB - Virtual size: 10KB

.idata Size: 7KB - Virtual size: 6KB

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

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

33:00:00:04:60:cf:42:a9:12:31:5f:6f:b3:00:00:00:00:04:60
Certificate

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

28:de:bd:d9:85:ef:cd:bb:0d:17:48:d4:ec:50:3d:4e:3e:1a:80:2d:09:d5:82:ce:ed:40:ba:15:e8:3f:0b:dc
Signer

.text
Size: 690KB - Virtual size: 690KB

.data
Size: 8KB - Virtual size: 10KB

.idata
Size: 7KB - Virtual size: 6KB

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

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