authenticator[.]exe

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General

Target

authenticator.exe
Size

1.4MB
MD5

9e87a5c663190b0781bc9f280c7b71ee
SHA1

77a5bb64063dbdd49392c4480ffe871894bf9ee3
SHA256

6d2d138455910096ff425249de0df85789410aa4652b7424173e3ad6efc079cd
SHA512

083e2b57fa4f0fb925584697486941a8749883239ddf73d78656845392ebe418e7dfcc02cda183647b943646723c59a8c587d08b5e10b470b6fa0068cab8437f
SSDEEP

24576:KHyTsemvvrmTMvJxF/anGNG/RoQynCP2Z:myTsVmQv7G64oQoC

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
authenticator.exe

Files

authenticator.exe
.exe windows:6 windows x64 arch:x64

e89d202bd86c628240f796536eeaa4d3

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

ntdll

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
VerSetConditionMask

kernel32

VerifyVersionInfoA
QueryPerformanceCounter
GetTickCount
MoveFileExA
WaitForSingleObjectEx
MultiByteToWideChar
GetEnvironmentVariableA
GetStdHandle
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
SetLastError
FormatMessageA
CreateFileA
GetFileSizeEx
WideCharToMultiByte
AcquireSRWLockExclusive
GetSystemDirectoryA
QueryPerformanceFrequency
SleepEx
LeaveCriticalSection
EnterCriticalSection
LocalFree
GetModuleFileNameA
Sleep
DeleteCriticalSection
InitializeCriticalSectionEx
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
HeapAlloc
HeapDestroy
IsDebuggerPresent
GetConsoleWindow
GetCurrentProcessId
ReadProcessMemory
GetProcAddress
AddVectoredExceptionHandler
CloseHandle
Process32First
VirtualProtect
GetCurrentProcess
CreateMutexA
GetModuleHandleA
OpenProcess
CreateToolhelp32Snapshot
K32GetModuleFileNameExA
ReleaseSRWLockExclusive
GetLastError
Process32NextW
GetCurrentThread
LoadLibraryA
Process32Next
Process32FirstW
FreeLibrary
OutputDebugStringW
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetModuleHandleW
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
SleepConditionVariableSRW
WakeAllConditionVariable

user32

ShowWindow
MessageBoxA

advapi32

ConvertSidToStringSidA
AddAccessAllowedAce
GetLengthSid
SetSecurityInfo
InitializeAcl
OpenProcessToken
RegSetValueExA
IsValidSid
RegCreateKeyExA
RegOpenKeyA
RegCloseKey
CopySid
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptEncrypt
CryptImportKey
CryptDestroyKey
CryptDestroyHash
CryptHashData
GetTokenInformation

msvcp140

?_Xbad_function_call@std@@YAXXZ
_Query_perf_frequency
?good@ios_base@std@@QEBA_NXZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
_Thrd_detach
_Query_perf_counter
_Cnd_do_broadcast_at_thread_exit
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Xout_of_range@std@@YAXPEBD@Z
?_Xinvalid_argument@std@@YAXPEBD@Z
?uncaught_exception@std@@YA_NXZ
?_Throw_Cpp_error@std@@YAXH@Z
?_Xlength_error@std@@YAXPEBD@Z

normaliz

IdnToAscii

wldap32

ord301
ord200
ord30
ord79
ord35
ord33
ord143
ord27
ord217
ord46
ord211
ord60
ord45
ord50
ord41
ord22
ord26
ord32

crypt32

CertGetCertificateChain
CertFreeCertificateChainEngine
CertCreateCertificateChainEngine
CertAddCertificateContextToStore
CryptQueryObject
CertGetNameStringA
CertFindExtension
CertFreeCertificateChain
CertCloseStore
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateContext
CryptStringToBinaryA
PFXImportCertStore
CryptDecodeObjectEx
CertOpenStore

ws2_32

ntohs
htons
getsockopt
getsockname
setsockopt
connect
bind
WSAGetLastError
send
recv
closesocket
socket
WSASetLastError
WSAIoctl
WSAStartup
WSACleanup
accept
htonl
listen
ioctlsocket
__WSAFDIsSet
select
getaddrinfo
freeaddrinfo
recvfrom
sendto
gethostname
ntohl
getpeername

rpcrt4

UuidToStringA
UuidCreate
RpcStringFreeA

winhttp

WinHttpSendRequest
WinHttpCloseHandle
WinHttpOpen
WinHttpReadData
WinHttpQueryDataAvailable
WinHttpOpenRequest
WinHttpConnect
WinHttpReceiveResponse
WinHttpCrackUrl

userenv

UnloadUserProfile

vcruntime140_1

__CxxFrameHandler4

vcruntime140

strstr
strrchr
strchr
__current_exception_context
memmove
memcpy
memcmp
memchr
_CxxThrowException
__std_terminate
_purecall
__std_type_info_compare
__std_exception_copy
__std_exception_destroy
__C_specific_handler
__current_exception
memset
_local_unwind

api-ms-win-crt-runtime-l1-1-0

terminate
system
_errno
strerror
_invalid_parameter_noinfo
_beginthreadex
_resetstkoflw
exit
_getpid
_register_thread_local_exe_atexit_callback
_c_exit
__sys_nerr
__p___argv
__p___argc
_configure_narrow_argv
_initialize_narrow_environment
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_cexit
_seh_filter_exe
_set_app_type
_exit
_get_initial_narrow_environment
_initterm
_initterm_e
_invalid_parameter_noinfo_noreturn

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

free
calloc
realloc
_callnewh
malloc
_set_new_mode

api-ms-win-crt-utility-l1-1-0

qsort
srand
rand

api-ms-win-crt-convert-l1-1-0

atoi
strtoull
strtoul
strtol
strtoll
strtod

api-ms-win-crt-time-l1-1-0

_time64
_gmtime64

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func
fgets
_pclose
_popen
fread
feof
_set_fmode
__stdio_common_vsprintf
_read
_write
ftell
__stdio_common_vsscanf
_close
_open
__p__commode
fputs
_lseeki64
fopen
fwrite
fputc
fclose
fflush
fseek

api-ms-win-crt-locale-l1-1-0

localeconv
_configthreadlocale

api-ms-win-crt-math-l1-1-0

_dclass
__setusermatherr

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

tolower
strcmp
strncmp
_strdup
strcspn
strspn
isupper
strncpy
strpbrk

api-ms-win-crt-filesystem-l1-1-0

_access
_fstat64
_stat64
_unlink

Sections

.text
Size: 897KB - Virtual size: 897KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.auth
Size: 512B - Virtual size: 388B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 124KB - Virtual size: 124KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 320KB - Virtual size: 322KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.auth
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

e89d202bd86c628240f796536eeaa4d3

Headers

DLL Characteristics

File Characteristics

Imports

ntdll

kernel32

user32

advapi32

msvcp140

normaliz

wldap32

crypt32

ws2_32

rpcrt4

winhttp

userenv

vcruntime140_1

vcruntime140

api-ms-win-crt-runtime-l1-1-0

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

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

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

api-ms-win-crt-filesystem-l1-1-0

Sections

.text Size: 897KB - Virtual size: 897KB

.auth Size: 512B - Virtual size: 388B

.rdata Size: 124KB - Virtual size: 124KB

.data Size: 320KB - Virtual size: 322KB

.pdata Size: 35KB - Virtual size: 35KB

.auth Size: 4KB - Virtual size: 3KB

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

.reloc Size: 8KB - Virtual size: 7KB

.text
Size: 897KB - Virtual size: 897KB

.auth
Size: 512B - Virtual size: 388B

.rdata
Size: 124KB - Virtual size: 124KB

.data
Size: 320KB - Virtual size: 322KB

.pdata
Size: 35KB - Virtual size: 35KB

.auth
Size: 4KB - Virtual size: 3KB

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

.reloc
Size: 8KB - Virtual size: 7KB