Static task
static1
Behavioral task
behavioral1
Sample
ThumbnailExtractionHost.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
ThumbnailExtractionHost.exe
Resource
win10v2004-20230221-en
General
-
Target
ThumbnailExtractionHost.exe
-
Size
29KB
-
MD5
3f9a02488056e04c065062f35474ec22
-
SHA1
b03b43139893c5fe29d3ce479025675df7f6ec4d
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SHA256
0fdde9c435a27912ea8144dbde97f62eebfb3943efbc3f430d89a26fd3ca7ca4
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SHA512
30f2e046dddd82c3281d1e2a74a90c4687c04ff5eb3d9829ad7d5fa8a357b6baa04426aa79e0d2b9de9970d8cfffa28d65d08cf33e92d6f017d67a18c3d462d8
-
SSDEEP
768:YPKcesZmx2xQL84db4q2dSzLM11TLaOHWKo:YPasZmk+84t4q2MzLMnBHWKo
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource ThumbnailExtractionHost.exe
Files
-
ThumbnailExtractionHost.exe.exe windows x86
145260dbb8b817b2fc16c800b7273131
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
advapi32
RegOpenKeyExW
RegQueryInfoKeyW
RegCloseKey
EventWrite
RegGetValueW
kernel32
InitializeCriticalSection
WaitForSingleObject
GetCurrentThreadId
CreateEventW
Sleep
GetLastError
SetEvent
CloseHandle
GetModuleFileNameW
CreateThread
GetProcAddress
DeleteCriticalSection
GetModuleHandleW
LoadLibraryExW
FreeLibrary
LoadLibraryExA
WaitForThreadpoolTimerCallbacks
DuplicateHandle
CloseThreadpoolTimer
GetCommandLineW
RaiseException
CreateThreadpoolTimer
SetThreadpoolTimer
GetCurrentThread
DelayLoadFailureHook
user32
GetMessageW
CharUpperW
DispatchMessageW
TranslateMessage
PostThreadMessageW
CharNextW
UnregisterClassA
msvcrt
_lock
_unlock
_wcmdln
_initterm
__setusermatherr
__dllonexit
_onexit
__p__fmode
_cexit
_exit
?terminate@@YAXXZ
exit
__set_app_type
__wgetmainargs
_amsg_exit
__p__commode
_XcptFilter
__CxxFrameHandler3
memset
_callnewh
malloc
wcsncpy_s
free
_purecall
wcscat_s
wcscpy_s
_controlfp
_except_handler4_common
oleaut32
UnRegisterTypeLi
LoadTypeLi
SysAllocString
SysStringLen
RegisterTypeLi
SysFreeString
api-ms-win-core-shlwapi-obsolete-l1-2-0
QISearch
api-ms-win-core-sysinfo-l1-2-1
GetTickCount
GetSystemTimeAsFileTime
api-ms-win-core-processthreads-l1-1-2
GetStartupInfoW
GetCurrentProcess
GetCurrentProcessId
TerminateProcess
api-ms-win-core-errorhandling-l1-1-1
SetUnhandledExceptionFilter
UnhandledExceptionFilter
api-ms-win-core-libraryloader-l1-2-0
GetModuleHandleA
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
api-ms-win-core-shlwapi-legacy-l1-1-0
PathFindFileNameW
api-ms-win-shcore-thread-l1-1-0
SHCreateThread
Sections
.text Size: 19KB - Virtual size: 19KB
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: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 512B - Virtual size: 56B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ