certoc[.]exe | Triage

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General

Target

certoc.exe
Size

117KB
MD5

d54a1c65181a216b41a93ce607b6ee17
SHA1

c3c6b6480b0a489bcccc7d945d95cd8b2194d542
SHA256

b87c21e938ab6f31f5d828c56319be534dcc648c330bc747597ef7cc5b6633bc
SHA512

9078e4a8cb95400e730264ce4b072667ed280f5fc4594a5e675890f48c2a6b6b8af9ae26eb5d852e08cc33e4683e48d7b42636ec96555dbc28fa5dfea925bf1c
SSDEEP

1536:gicU1pteiOsnoGqfEOF11f1mPgKCftrUtWD0i4c1B2T6TvnF9cWT8YlrDbM+LR3D:q30otsOFJmuftYWD0ix8r+LFifaYt0

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
certoc.exe

Files

certoc.exe
.exe windows x64

964f0f5f0131dac0dad3e441f0cc521b

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE

Imports

msvcrt

wcschr
iswspace
iswxdigit
iswdigit
wcscspn
_vsnwprintf
__iob_func
strcspn
fwrite
ftell
fseek
getenv
_errno
fopen
fclose
fflush
fprintf
?_set_se_translator@@YAP6AXIPEAU_EXCEPTION_POINTERS@@@ZP6AXI0@Z@Z
__CxxFrameHandler3
_vsnprintf
_wtoi
wprintf
isdigit
atoi
_wgetenv
iswupper
towlower
iswlower
towupper
malloc
free
_swab
??0exception@@QEAA@AEBQEBDH@Z
strncmp
??0exception@@QEAA@AEBV0@@Z
??1exception@@UEAA@XZ
?what@exception@@UEBAPEBDXZ
_callnewh
strchr
_CxxThrowException
_XcptFilter
_amsg_exit
__wgetmainargs
__set_app_type
exit
_exit
_cexit
__setusermatherr
_initterm
memcmp
memcpy
memset
?terminate@@YAXXZ
??1type_info@@UEAA@XZ
_commode
_fmode
_wcmdln
iswalpha
__C_specific_handler
strcmp

ntdll

RtlCaptureContext
RtlVirtualUnwind
RtlLookupFunctionEntry

api-ms-win-security-cryptoapi-l1-1-0

CryptGetProvParam
CryptReleaseContext

crypt32

CryptAcquireCertificatePrivateKey
CryptBinaryToStringA
CryptBinaryToStringW
PFXExportCertStoreEx
PFXImportCertStore
CertAddCertificateContextToStore
CertAddSerializedElementToStore
CertAddEncodedCTLToStore
CertAddEncodedCRLToStore
CertAddEncodedCertificateToStore
CryptQueryObject
CertDeleteCertificateFromStore
CertSaveStore
CertOpenStore
CertCloseStore
CertFindCertificateInStore
CertNameToStrW
CryptDecodeObjectEx
CryptEncodeObjectEx
CryptFormatObject
CertGetNameStringW
CryptEnumOIDInfo
CryptStringToBinaryA
CertDuplicateCertificateContext
CertAddCertificateLinkToStore
CertEnumCertificatesInStore
CertCreateCertificateContext
CertGetIntendedKeyUsage
CertGetEnhancedKeyUsage
CryptHashPublicKeyInfo
CryptHashCertificate
CertFindExtension
CertGetCertificateContextProperty
CryptFindOIDInfo
CertFreeCertificateContext

api-ms-win-core-heap-l2-1-0

LocalAlloc
LocalFree

api-ms-win-core-localization-l1-2-0

GetACP
IdnToUnicode

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

GetSystemDirectoryW
GetSystemTimeAsFileTime
GetSystemTime
GetTickCount
GetLocalTime

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

GetFileType
CreateFileW
GetTempFileNameW
DeleteFileW
ReadFile
GetFileSize
LocalFileTimeToFileTime
GetFullPathNameW
FileTimeToLocalFileTime
WriteFile
CompareFileTime

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

CloseHandle

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

GetProcessHeap
HeapAlloc
HeapFree

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

MultiByteToWideChar
FoldStringW
WideCharToMultiByte
CompareStringW

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetLastError
SetLastError

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

FileTimeToSystemTime
SystemTimeToFileTime

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

EnterCriticalSection
InitializeCriticalSection
LeaveCriticalSection

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

RegGetValueW

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

GetStdHandle

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

OutputDebugStringW
IsDebuggerPresent
OutputDebugStringA

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

WriteConsoleW

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

DecodePointer

api-ms-win-core-libraryloader-l1-2-0

LoadLibraryExW
GetModuleHandleW
FreeLibrary
GetProcAddress

ncrypt

NCryptFreeObject
NCryptOpenStorageProvider
NCryptIsKeyHandle
NCryptGetProperty

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

CoUninitialize
CoInitializeEx
StringFromCLSID
CoTaskMemAlloc
CoCreateInstance
CoTaskMemFree

oleaut32

SysFreeString
VariantClear
VariantInit
SysAllocString
SysStringByteLen
SystemTimeToVariantTime
SysAllocStringByteLen

api-ms-win-core-string-l2-1-0

CharLowerW

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

GetDateFormatW
GetTimeFormatW

api-ms-win-core-console-l3-2-0

GetConsoleWindow

api-ms-win-core-synch-l1-2-0

Sleep

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

GetStartupInfoW
GetCurrentThreadId
TerminateProcess
GetCurrentProcessId
GetCurrentProcess

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

QueryPerformanceCounter

api-ms-win-core-string-obsolete-l1-1-0

lstrcmpiW

api-ms-win-shcore-obsolete-l1-1-0

CommandLineToArgvW

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

ApiSetQueryApiSetPresence

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

Sections

.text
Size: 62KB - Virtual size: 62KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 41KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 2KB - Virtual size: 2KB

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: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 1012B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

964f0f5f0131dac0dad3e441f0cc521b

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

ntdll

api-ms-win-security-cryptoapi-l1-1-0

crypt32

api-ms-win-core-heap-l2-1-0

api-ms-win-core-localization-l1-2-0

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

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

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

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

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

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

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

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

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

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

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

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

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

api-ms-win-core-libraryloader-l1-2-0

ncrypt

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

oleaut32

api-ms-win-core-string-l2-1-0

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

api-ms-win-core-console-l3-2-0

api-ms-win-core-synch-l1-2-0

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

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

api-ms-win-core-string-obsolete-l1-1-0

api-ms-win-shcore-obsolete-l1-1-0

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

api-ms-win-core-delayload-l1-1-1

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

Sections

.text Size: 62KB - Virtual size: 62KB

.rdata Size: 42KB - Virtual size: 41KB

.data Size: 5KB - Virtual size: 6KB

.pdata Size: 2KB - Virtual size: 2KB

.didat Size: 512B - Virtual size: 16B

.rsrc Size: 3KB - Virtual size: 2KB

.reloc Size: 1024B - Virtual size: 1012B

.text
Size: 62KB - Virtual size: 62KB

.rdata
Size: 42KB - Virtual size: 41KB

.data
Size: 5KB - Virtual size: 6KB

.pdata
Size: 2KB - Virtual size: 2KB

.didat
Size: 512B - Virtual size: 16B

.rsrc
Size: 3KB - Virtual size: 2KB

.reloc
Size: 1024B - Virtual size: 1012B