Static task
static1
Behavioral task
behavioral1
Sample
cleanmgr.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
cleanmgr.exe
Resource
win10v2004-20230220-en
General
-
Target
cleanmgr.exe
-
Size
266KB
-
MD5
295fa2d188277a4617da676aa909cf26
-
SHA1
2ca363e7971ccfef9f33a8e40f0ebca12b938f2d
-
SHA256
ac623bdb49fe3dadeb176e691800c45e7e2487b7364d673043b0b280bb8fecef
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SHA512
a209e02ddeba2a80f4ee40cf2f9c8731df5f30e2fa494650d62c29e73ff64a1bab15f0659cf2d982125c89725b5c98d419510a4d86027dbc156582040c640cdb
-
SSDEEP
6144:jahziokDyQjdUhYlE+ohSKq99UF5hvv/G:jSzs2QOqly4QnG
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource cleanmgr.exe
Files
-
cleanmgr.exe.exe windows x86
bd282255159f5b63e89eefaaeb687b68
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
GetLayout
ExtTextOutW
GetTextExtentPoint32W
SetBkMode
SetTextColor
SetBkColor
user32
DestroyWindow
CreateDialogParamW
IsDialogMessageW
GetMessageW
DestroyIcon
LoadIconW
GetWindowLongW
GetSystemMetrics
GetClientRect
SetDlgItemTextW
GetParent
SendDlgItemMessageW
SetWindowLongW
GetDlgItem
SendMessageW
ShowWindow
MessageBoxW
LoadStringW
SetForegroundWindow
GetWindowTextW
PostMessageW
DrawFocusRect
DrawIconEx
GetSysColor
SetFocus
EndDialog
EnableWindow
TranslateMessage
EnumWindows
DialogBoxParamW
DispatchMessageW
msvcrt
_vsnwprintf
_CIsqrt
_ftol2
memcpy_s
memset
_except_handler4_common
_controlfp
?terminate@@YAXXZ
_onexit
__dllonexit
_i64toa_s
_lock
_initterm
__setusermatherr
__p__fmode
_cexit
_exit
exit
__set_app_type
__getmainargs
_amsg_exit
__p__commode
_XcptFilter
_wcsicmp
_unlock
toupper
comctl32
ImageList_ReplaceIcon
ord345
CreatePropertySheetPageW
PropertySheetW
ImageList_Create
ord17
shell32
ExtractIconExW
SHGetFileInfoW
ord680
ShellExecuteExW
shlwapi
StrFormatByteSizeW
ord487
StrToIntW
StrStrIW
StrCmpNW
ord271
SHDeleteKeyW
PathStripToRootW
StrCmpW
api-ms-win-core-localization-l1-2-0
FormatMessageW
api-ms-win-core-processthreads-l1-1-0
TerminateProcess
GetCurrentProcess
CreateThread
GetCurrentProcessId
GetCurrentThreadId
api-ms-win-core-heap-l1-1-0
HeapSetInformation
HeapFree
HeapAlloc
GetProcessHeap
api-ms-win-core-libraryloader-l1-2-0
LoadLibraryExW
GetModuleHandleExW
GetModuleFileNameA
GetProcAddress
GetModuleHandleW
FreeLibrary
GetModuleFileNameW
api-ms-win-core-debug-l1-1-0
DebugBreak
IsDebuggerPresent
OutputDebugStringW
api-ms-win-core-errorhandling-l1-1-0
SetLastError
UnhandledExceptionFilter
GetLastError
SetUnhandledExceptionFilter
SetErrorMode
api-ms-win-core-handle-l1-1-0
CloseHandle
api-ms-win-core-synch-l1-1-0
OpenSemaphoreW
AcquireSRWLockExclusive
CreateMutexExW
CreateSemaphoreExW
ReleaseSemaphore
ReleaseMutex
ReleaseSRWLockExclusive
SetEvent
CreateEventW
WaitForSingleObject
WaitForSingleObjectEx
api-ms-win-eventing-provider-l1-1-0
EventSetInformation
EventWriteTransfer
EventUnregister
EventRegister
EventActivityIdControl
api-ms-win-core-com-l1-1-0
CoInitializeEx
CoTaskMemAlloc
CoUninitialize
CoCreateInstance
CoTaskMemFree
CLSIDFromString
api-ms-win-core-sysinfo-l1-1-0
GetSystemTime
GetSystemTimeAsFileTime
GetTickCount64
GetWindowsDirectoryW
GetTickCount
api-ms-win-core-heap-l2-1-0
LocalFree
LocalAlloc
api-ms-win-core-file-l1-1-0
GetDiskFreeSpaceW
GetDiskFreeSpaceExW
GetVolumeInformationW
GetDriveTypeW
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
InitOnceBeginInitialize
InitOnceComplete
Sleep
api-ms-win-core-registry-l1-1-0
RegSetValueExW
RegOpenKeyExW
RegQueryValueExW
RegCloseKey
RegGetValueW
RegEnumKeyExW
oleaut32
SysStringLen
VariantInit
VariantClear
api-ms-win-core-timezone-l1-1-0
SystemTimeToFileTime
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
kernel32
MulDiv
GetStartupInfoA
CheckElevationEnabled
lstrlenW
ntdll
RtlNtStatusToDosError
NtOpenProcessToken
NtOpenThreadToken
NtClose
NtQueryInformationToken
ole32
CoInitialize
vssapi
CreateVssBackupComponentsInternal
VssFreeSnapshotPropertiesInternal
api-ms-win-core-delayload-l1-1-1
ResolveDelayLoadedAPI
api-ms-win-core-delayload-l1-1-0
DelayLoadFailureHook
Sections
.text Size: 79KB - Virtual size: 78KB
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: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 512B - Virtual size: 16B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 175KB - Virtual size: 175KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ