Static task
static1
Behavioral task
behavioral1
Sample
chktrust.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
chktrust.exe
Resource
win10v2004-20230703-en
General
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Target
chktrust.exe
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Size
17KB
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MD5
42b8897dcc573bf8e08c2e3f3f172cee
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SHA1
1e81e6ab14bf180428c908c5136eb28f9f4959f2
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SHA256
11700500b6c83700fffb14bfb8b480665d6a1b297c773a5f3ae4a28b329b3af3
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SHA512
39a181c17491cc29932d6025f5666f0bf1106e108118e6f67ceb6915d996fc2faee211eaa22bda5901feb9bf3f0fa0a64c434296a6eb61e799100831d2e5604c
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SSDEEP
384:RFdp7DAoX7EbBoq4D6DDZnRzmohI7umw6QWPL5XWZXj5ZXCr:plDbQd+epRaoL6LGXLCr
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource chktrust.exe
Files
-
chktrust.exe.exe windows x86
16e83ea82cb2014691b009f0104e91ce
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED
Imports
msvcrt
__p__fmode
wcsrchr
??2@YAPAXI@Z
??3@YAXPAX@Z
towlower
wcslen
_exit
_XcptFilter
exit
__p___winitenv
__wgetmainargs
_initterm
__setusermatherr
_adjust_fdiv
__p__commode
wcscpy
__set_app_type
_except_handler3
_controlfp
wcscat
vwprintf
_memicmp
wcstoul
swprintf
wprintf
kernel32
SetLastError
GetModuleHandleA
CloseHandle
GetLastError
WideCharToMultiByte
FindFirstFileA
FindNextFileA
FindClose
MultiByteToWideChar
CopyFileA
CopyFileW
ReadFile
SetFilePointer
DeleteFileA
GetVersionExA
DeleteFileW
lstrlenW
CreateFileA
CreateFileW
LocalAlloc
LocalFree
mscat32
CryptCATAdminReleaseContext
CryptCATAdminAcquireContext
CryptCATAdminCalcHashFromFileHandle
IsCatalogFile
CryptCATOpen
CryptCATEnumerateMember
CryptCATClose
CryptCATAdminEnumCatalogFromHash
CryptCATAdminReleaseCatalogContext
CryptCATCatalogInfoFromContext
CryptCATAdminAddCatalog
wintrust
WinVerifyTrust
crypt32
CertFindAttribute
CryptMsgGetParam
CryptMsgUpdate
CryptMsgOpenToDecode
CryptSIPRetrieveSubjectGuid
CryptSIPLoad
CryptMsgClose
user32
LoadStringA
LoadStringW
Sections
.text Size: 11KB - Virtual size: 11KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 252B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ