Static task
static1
Behavioral task
behavioral1
Sample
cleanmgr.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
cleanmgr.exe
Resource
win10v2004-20230915-en
General
-
Target
cleanmgr.exe
-
Size
284KB
-
MD5
94e2949f4f000e181cad4d5a9054c420
-
SHA1
42c31ece4b1562fb83a39c0fe0b3c56331e5dccd
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SHA256
3327a39c50990b213162c11b2fdbb845949da77798b211b8c1765d7bcf94ec49
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SHA512
2625f0630b5c8df2e8534536bddbfc755a7227520f4ae0e9c5d07df3dc0cb47ac4c31aeafe42a2d9e000b533de8dee63b7a6c6bb7e0d50135000cbc519ce8afd
-
SSDEEP
3072:0mDUuhW29s8VZinSWQDyg2j5pgkry4OAEPGRvQhRkKqUa9antF5hvvJkuXp6:0SWQDynj59u4JE+ohSKq99UF5hvv/
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource cleanmgr.exe
Files
-
cleanmgr.exe.exe windows:10 windows x86
6534d04e7bf93e169722de4caa8b6ef9
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
gdi32
ExtTextOutW
GetLayout
SetBkMode
SetTextColor
SetBkColor
GetTextExtentPoint32W
user32
DestroyWindow
DialogBoxParamW
EndDialog
SetFocus
GetSysColor
DrawIconEx
DrawFocusRect
LoadIconW
PostMessageW
CreateDialogParamW
GetWindowTextW
SetForegroundWindow
DestroyIcon
EnableWindow
GetWindowLongW
GetSystemMetrics
GetClientRect
SetDlgItemTextW
GetParent
SendDlgItemMessageW
GetMessageW
IsDialogMessageW
TranslateMessage
DispatchMessageW
EnumWindows
SetWindowLongW
GetDlgItem
SendMessageW
LoadStringW
ShowWindow
MessageBoxW
msvcrt
memcmp
_CIsqrt
memcpy_s
memmove_s
free
_vsnwprintf
_ftol2
realloc
_except_handler4_common
_controlfp
?terminate@@YAXXZ
_onexit
__dllonexit
_unlock
_lock
_initterm
__setusermatherr
__p__fmode
_cexit
_exit
exit
__set_app_type
__getmainargs
_amsg_exit
__p__commode
_XcptFilter
_i64toa_s
_wcsicmp
toupper
malloc
memset
comctl32
ImageList_Create
PropertySheetW
CreatePropertySheetPageW
ord345
ord17
ImageList_ReplaceIcon
shell32
SHGetFileInfoW
ord680
ExtractIconExW
ShellExecuteExW
shlwapi
StrCmpNW
StrCmpW
StrToIntW
StrStrIW
StrFormatByteSizeW
ord487
SHDeleteKeyW
PathStripToRootW
ord271
api-ms-win-core-localization-l1-2-0
FormatMessageW
api-ms-win-core-processthreads-l1-1-0
GetCurrentProcess
OpenProcessToken
TerminateProcess
CreateThread
GetCurrentProcessId
GetCurrentThreadId
api-ms-win-core-heap-l1-1-0
HeapAlloc
HeapFree
GetProcessHeap
HeapSetInformation
api-ms-win-core-libraryloader-l1-2-0
GetModuleFileNameA
LoadLibraryExW
GetModuleHandleExW
GetModuleFileNameW
FreeLibrary
GetModuleHandleW
GetProcAddress
api-ms-win-core-debug-l1-1-0
IsDebuggerPresent
OutputDebugStringW
DebugBreak
api-ms-win-core-errorhandling-l1-1-0
GetLastError
SetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetErrorMode
api-ms-win-core-handle-l1-1-0
CloseHandle
api-ms-win-core-synch-l1-1-0
WaitForSingleObject
ReleaseMutex
SetEvent
OpenSemaphoreW
ReleaseSRWLockExclusive
WaitForSingleObjectEx
AcquireSRWLockExclusive
ReleaseSemaphore
CreateEventW
CreateMutexExW
CreateSemaphoreExW
api-ms-win-eventing-provider-l1-1-0
EventRegister
EventActivityIdControl
EventWriteTransfer
EventSetInformation
EventUnregister
api-ms-win-core-com-l1-1-0
CLSIDFromString
CoTaskMemFree
CoCreateInstance
CoUninitialize
CoGetMalloc
CoInitializeEx
CoTaskMemAlloc
api-ms-win-core-sysinfo-l1-1-0
GetSystemTime
GetTickCount64
GetTickCount
GetWindowsDirectoryW
GetSystemTimeAsFileTime
api-ms-win-core-heap-l2-1-0
LocalAlloc
LocalFree
api-ms-win-core-file-l1-1-0
GetDiskFreeSpaceExW
GetVolumeInformationW
GetDriveTypeW
GetDiskFreeSpaceW
api-ms-win-core-processenvironment-l1-1-0
GetCommandLineW
api-ms-win-core-string-l1-1-0
WideCharToMultiByte
api-ms-win-core-file-l1-2-0
GetVolumeNameForVolumeMountPointW
api-ms-win-core-synch-l1-2-0
InitOnceComplete
Sleep
InitOnceBeginInitialize
api-ms-win-core-registry-l1-1-0
RegCloseKey
RegQueryValueExW
RegEnumKeyExW
RegSetValueExW
RegGetValueW
RegOpenKeyExW
oleaut32
VariantInit
SysStringLen
VariantClear
api-ms-win-core-timezone-l1-1-0
SystemTimeToFileTime
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
kernel32
CheckElevationEnabled
WaitForThreadpoolTimerCallbacks
CloseThreadpoolTimer
GetStartupInfoA
MulDiv
AcquireSRWLockShared
ReleaseSRWLockShared
SetThreadpoolTimer
CreateThreadpoolTimer
LeaveCriticalSection
EnterCriticalSection
DeleteCriticalSection
InitializeCriticalSectionEx
lstrlenW
ntdll
RtlNtStatusToDosError
NtOpenThreadToken
NtClose
NtQueryInformationToken
NtOpenProcessToken
NtFsControlFile
NtCreateFile
RtlDosPathNameToNtPathName_U
RtlFreeUnicodeString
ole32
CoInitialize
vssapi
CreateVssBackupComponentsInternal
VssFreeSnapshotPropertiesInternal
api-ms-win-security-base-l1-1-0
AdjustTokenPrivileges
api-ms-win-security-lsalookup-l2-1-0
LookupPrivilegeValueW
Sections
.text Size: 96KB - Virtual size: 95KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 1KB
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: 175KB - Virtual size: 175KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ