wer[.]dll | Triage

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General

Target

wer.dll
Size

15.5MB
MD5

5b251b739e31a36ad03da36159396791
SHA1

3398d6268a054c502ed484ffce5552bb7f25cd1e
SHA256

e9f89ba14f07822d159898e6cb0d82c6e5d2a6caf9a757bee55b4cbbfc8bb8cc
SHA512

b87c6041196ef2f60f028db3e72e907a7047d29705cc549fed1a7cebd5b0ab7f28aef4f9d7df07020027f20993106c018c22dfd7e713315270bf4e3f36ae96c9
SSDEEP

393216:1WOfFKXmEI45ITmLKoln2X8G+E97WaP9jaJe91RPwDIo9y:1WsFwy47LKoM5jBP9+J41SD8

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
wer.dll

Files

wer.dll
.dll windows:4 windows x64 arch:x64

9ce93d0f879ea948dd651fc92b6cf3b7

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
IMAGE_FILE_DLL

Imports

kernel32

CloseHandle
CreateFileA
CreateFileMappingA
DeleteCriticalSection
EnterCriticalSection
FindResourceA
FreeResource
GetCurrentProcess
GetCurrentThread
GetLastError
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetThreadId
HeapAlloc
HeapFree
InitializeCriticalSection
IsDBCSLeadByteEx
K32EnumProcessModules
K32GetModuleFileNameExA
LeaveCriticalSection
LoadLibraryW
LoadResource
LockResource
MapViewOfFile
MultiByteToWideChar
OpenProcess
RaiseException
ReadProcessMemory
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetLastError
SizeofResource
Sleep
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnmapViewOfFile
VirtualProtect
VirtualQuery
WideCharToMultiByte
WriteFile

msvcrt

___lc_codepage_func
___mb_cur_max_func
__iob_func
_amsg_exit
_errno
_initterm
_lock
_read
_stricmp
_strnicmp
_unlock
_wcsicmp
abort
calloc
fputc
fputs
fputwc
free
fwprintf
fwrite
getenv
localeconv
malloc
mbstowcs
memchr
memcmp
memcpy
memmove
memset
rand
realloc
strchr
strcmp
strcpy
strerror
strlen
strncat
strncmp
strncpy
strtoul
vfprintf
wcscat
wcslen

ntdll

RtlAllocateHeap
RtlCreateProcessParametersEx
RtlDestroyProcessParameters
RtlFreeHeap
RtlInitUnicodeString

shlwapi

PathRemoveFileSpecA
StrStrIA

Exports

Exports

CloseThreadWaitChainSession
GetThreadWaitChain
OpenThreadWaitChainSession
RegisterWaitChainCOMCallback
WerAddExcludedApplication
WerFreeString
WerRemoveExcludedApplication
WerReportAddDump
WerReportAddFile
WerReportCloseHandle
WerReportCreate
WerReportSetParameter
WerReportSetUIOption
WerReportSubmit
WerStoreClose
WerStoreGetFirstReportKey
WerStoreGetNextReportKey
WerStoreGetReportCount
WerStoreGetSizeOnDisk
WerStoreOpen
WerStorePurge
WerStoreQueryReportMetadataV1
WerStoreQueryReportMetadataV2
WerStoreQueryReportMetadataV3
WerStoreUploadReport
WerSysprepCleanup
WerSysprepGeneralize
WerUnattendedSetup
WerpAddAppCompatData
WerpAddFile
WerpAddFileBuffer
WerpAddFileCallback
WerpAddIfRegisteredForAppLocalDump
WerpAddMemoryBlock
WerpAddRegisteredDataToReport
WerpAddRegisteredDumpsToReport
WerpAddRegisteredMetadataToReport
WerpAddTerminationReason
WerpArchiveReport
WerpAuxmdDumpProcessImages
WerpAuxmdDumpRegisteredBlocks
WerpAuxmdFree
WerpAuxmdFreeCopyBuffer
WerpAuxmdHashVaRanges
WerpAuxmdInitialize
WerpAuxmdMapFile
WerpCancelUpload
WerpCleanWer
WerpCloseStore
WerpCreateIntegratorReportId
WerpCreateMachineStore
WerpDeleteReport
WerpDestroyWerString
WerpEnumerateStoreNext
WerpEnumerateStoreStart
WerpExtractReportFiles
WerpFlushImageCache
WerpForceDeferredCollection
WerpFreeString
WerpFreeUnmappedVaRanges
WerpGetBucketId
WerpGetDynamicParameter
WerpGetEventType
WerpGetExtendedDiagData
WerpGetFileByIndex
WerpGetFilePathByIndex
WerpGetIntegratorReportId
WerpGetLegacyBucketId
WerpGetLoadedModuleByIndex
WerpGetNumFiles
WerpGetNumLoadedModules
WerpGetNumSigParams
WerpGetPathOfWERTempDirectory
WerpGetReportConsent
WerpGetReportCount
WerpGetReportFinalConsent
WerpGetReportFlags
WerpGetReportId
WerpGetReportInformation
WerpGetReportSettings
WerpGetReportTime
WerpGetReportType
WerpGetResponseId
WerpGetSigParamByIndex
WerpGetStoreLocation
WerpGetStorePath
WerpGetStoreType
WerpGetTextFromReport
WerpGetUIParamByIndex
WerpGetUploadTime
WerpGetWerStringData
WerpGetWow64Process
WerpHashApplicationParameters
WerpInitializeImageCache
WerpIsDisabled
WerpIsOnBattery
WerpIsTransportAvailable
WerpLoadReport
WerpLoadReportFromBuffer
WerpOpenMachineArchive
WerpOpenMachineQueue
WerpPromptUser
WerpPruneStore
WerpReportCancel
WerpReportSetMaxProcessHoldMilliseconds
WerpReportSprintfParameter
WerpReserveMachineQueueReportDir
WerpResetTransientImageCacheStatistics
WerpRestartApplication
WerpSetAuxiliaryArchivePath
WerpSetCallBack
WerpSetDefaultUserConsent
WerpSetDynamicParameter
WerpSetEventName
WerpSetExitListeners
WerpSetIntegratorReportId
WerpSetIptEnabled
WerpSetProcessTimelines
WerpSetQuickDumpType
WerpSetReportApplicationIdentity
WerpSetReportFlags
WerpSetReportInformation
WerpSetReportIsFatal
WerpSetReportNamespaceParameter
WerpSetReportOption
WerpSetReportTime
WerpSetReportUploadContextToken
WerpSetTelemetryAppParams
WerpSetTelemetryKernelParams
WerpSetTelemetryServiceParams
WerpSetTtdStatus
WerpShowUpsellUI
WerpStitchedMinidumpVmPostReadCallback
WerpStitchedMinidumpVmPreReadCallback
WerpStitchedMinidumpVmQueryCallback
WerpSubmitReportFromStore
WerpTraceAuxMemDumpStatistics
WerpTraceDuration
WerpTraceImageCacheStatistics
WerpTraceSnapshotStatistics
WerpTraceStitchedDumpWriterStatistics
WerpTraceUnmappedVaRangesStatistics
WerpUnmapProcessViews
WerpValidateReportKey
WerpWalkGatherBlocks

Sections

.text
Size: 364KB - Virtual size: 364KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 512B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 16KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 12KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 15.1MB - Virtual size: 15.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 1024B - Virtual size: 1004B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9ce93d0f879ea948dd651fc92b6cf3b7

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

ntdll

shlwapi

Exports

Exports

Sections

.text Size: 364KB - Virtual size: 364KB

.data Size: 512B - Virtual size: 512B

.rdata Size: 16KB - Virtual size: 15KB

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

.xdata Size: 11KB - Virtual size: 11KB

.bss Size: - Virtual size: 12KB

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

.idata Size: 3KB - Virtual size: 3KB

.CRT Size: 512B - Virtual size: 88B

.tls Size: 512B - Virtual size: 16B

.rsrc Size: 15.1MB - Virtual size: 15.1MB

.reloc Size: 1024B - Virtual size: 1004B

.text
Size: 364KB - Virtual size: 364KB

.data
Size: 512B - Virtual size: 512B

.rdata
Size: 16KB - Virtual size: 15KB

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

.xdata
Size: 11KB - Virtual size: 11KB

.bss
Size: - Virtual size: 12KB

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

.idata
Size: 3KB - Virtual size: 3KB

.CRT
Size: 512B - Virtual size: 88B

.tls
Size: 512B - Virtual size: 16B

.rsrc
Size: 15.1MB - Virtual size: 15.1MB

.reloc
Size: 1024B - Virtual size: 1004B