dmutil[.]dll | Triage

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General

Target

dmutil.dll
Size

20KB
MD5

bb5328e5d2a4cbeb30fe128bb91dcc20
SHA1

10ce41346441f070903c46690f12625f21a14f3f
SHA256

86a46ffcc8ecac171baf4bb1c0a7fd3d2c2a9255bfa506bec7f57981d2db3367
SHA512

a2cbe2a9712bbc8a9782600e46804823cb8f50bd24f12298f3945c98724666b7d8a11f32689bde21cfdb7753ba02daa2ed9e046fb0e9a52fde9598d7f8dc2a50
SSDEEP

384:ftT5NEnbU+NkpkFm/3pvC+Arx+ZosqfJMQTJnCOWH8W2T:55NEnbU+NfKV2BIXE

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
dmutil.dll

Files

dmutil.dll
.dll windows:10 windows x86 arch:x86

7c26b6484661a8467b100b91dd9b6eb3

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_DLL

PDB Paths

dmutil.pdb

Imports

msvcrt

memcpy
_except_handler4_common
_vsnwprintf
_amsg_exit
_XcptFilter
_callnewh
mbstowcs
free
malloc
_wgetenv
wcstok
_vsnprintf
_initterm
memset

ntdll

NtClose
NtDeviceIoControlFile
NtReadFile
NtWriteFile
RtlAdjustPrivilege
NtSetInformationFile
VerSetConditionMask
NtSetBootEntryOrder
NtQueryBootEntryOrder
NtAddBootEntry
RtlFreeUnicodeString
NtOpenFile
RtlCreateUnicodeString
NtQueryInformationFile

api-ms-win-core-registry-l1-1-0

RegCloseKey
RegQueryValueExW
RegOpenKeyExW

kernel32

GetCurrentProcess
VerifyVersionInfoW
lstrcmpW
lstrlenA
lstrlenW
GetCurrentDirectoryW
Sleep
HeapFree
HeapAlloc
GetProcessHeap
CreateThread
LocalFree
FormatMessageW
LeaveCriticalSection
EnterCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
DelayLoadFailureHook
ResolveDelayLoadedAPI
DisableThreadLibraryCalls
GetTickCount
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
LoadLibraryW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
FreeLibrary
GetProcAddress

Exports

Exports

AddEntryBootFileGpt
AddEntryBootFileMbr
CoDisableDynamicVolumes
DisplayError
DisplayErrorRgszw
DllMain
DmCommonNtOpenFile
DynamicSupport
FTrace
FTraceValist
FreeRgszw
GetErrorData
GetInstallDirectoryPath
GetSystemVolume
IsPersonalSKU
LowAcquirePrivilege
LowGetPartitionInfo
LowNtAddBootEntry
LowNtReadFile
LowNtReadOnlyAttributeOff
LowNtWriteFile
RgszwDupRgszw
RgszwFromArgs
RgszwFromValist
SafeLoadVdsService
ShowMessage
ShowMessageValist
SzwDupSzw
SzwFromSza
TranslateError

Sections

.text
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 940B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 36B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 900B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7c26b6484661a8467b100b91dd9b6eb3

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

ntdll

api-ms-win-core-registry-l1-1-0

kernel32

Exports

Exports

Sections

.text Size: 14KB - Virtual size: 13KB

.data Size: 512B - Virtual size: 940B

.idata Size: 2KB - Virtual size: 1KB

.didat Size: 512B - Virtual size: 36B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 1024B - Virtual size: 900B

.text
Size: 14KB - Virtual size: 13KB

.data
Size: 512B - Virtual size: 940B

.idata
Size: 2KB - Virtual size: 1KB

.didat
Size: 512B - Virtual size: 36B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 1024B - Virtual size: 900B