wer[.]dll | Triage

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General

Target

wer.dll
Size

21.2MB
MD5

b28ff9adfe793b313aaff8e659b5f60c
SHA1

5e8d97db9d2756dd2d6d75751b50c1b3639cdd75
SHA256

2d0028bfe00a2ae27ec678126f19081c13238b09fa208509aac5a09420c9f0e9
SHA512

194ffcf492e20cc1c82f91e9114b4be4d58befb80fbf680da835be5c0e116939ef43132cad0d5fa4ee5bacaadaf25aa83f4661568c61f66211754b7d41763f5e
SSDEEP

393216:Slu7Txs0NDmNh9D4HaSYz2Kj0Cz1gEVmWdQOjM/y3tFfs5IRRViGmMQZ+Bw5k:57Th9mT97S7CzNwWCJK05IRTX+F

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

66f165513bf4c762ca78ccbfc28d421c

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
DeleteCriticalSection
EnterCriticalSection
FindResourceA
FreeResource
GetCommandLineA
GetLastError
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetSystemTimeAsFileTime
GetThreadId
HeapAlloc
HeapFree
InitializeConditionVariable
InitializeCriticalSection
IsDBCSLeadByteEx
K32EnumProcessModules
K32GetModuleFileNameExA
LeaveCriticalSection
LoadLibraryW
LoadResource
LockResource
MultiByteToWideChar
RaiseException
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetLastError
SizeofResource
Sleep
SleepConditionVariableCS
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryEnterCriticalSection
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteFile

msvcrt

___lc_codepage_func
___mb_cur_max_func
__iob_func
_amsg_exit
_errno
_initterm
_lock
_read
_strnicmp
_unlock
_wcsicmp
abort
calloc
fputc
fputs
fputwc
free
fwprintf
fwrite
getenv
iswctype
localeconv
malloc
mbstowcs
memchr
memcmp
memcpy
memmove
memset
rand
realloc
setlocale
strchr
strcmp
strcoll
strcpy
strerror
strftime
strlen
strncat
strncmp
strncpy
strtoul
strxfrm
towlower
towupper
vfprintf
wcscat
wcscoll
wcsftime
wcslen
wcsxfrm

ntdll

RtlAllocateHeap
RtlCreateProcessParametersEx
RtlDestroyProcessParameters
RtlFreeHeap
RtlInitUnicodeString

shell32

CommandLineToArgvW

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: 701KB - Virtual size: 700KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 51KB - Virtual size: 51KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 34KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

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: 4KB - 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: 20.4MB - Virtual size: 20.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

66f165513bf4c762ca78ccbfc28d421c

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

ntdll

shell32

Exports

Exports

Sections

.text Size: 701KB - Virtual size: 700KB

.data Size: 8KB - Virtual size: 7KB

.rdata Size: 51KB - Virtual size: 51KB

.pdata Size: 34KB - Virtual size: 34KB

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

.bss Size: - Virtual size: 12KB

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

.idata Size: 4KB - Virtual size: 3KB

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

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

.rsrc Size: 20.4MB - Virtual size: 20.4MB

.reloc Size: 5KB - Virtual size: 4KB

.text
Size: 701KB - Virtual size: 700KB

.data
Size: 8KB - Virtual size: 7KB

.rdata
Size: 51KB - Virtual size: 51KB

.pdata
Size: 34KB - Virtual size: 34KB

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

.bss
Size: - Virtual size: 12KB

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

.idata
Size: 4KB - Virtual size: 3KB

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

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

.rsrc
Size: 20.4MB - Virtual size: 20.4MB

.reloc
Size: 5KB - Virtual size: 4KB