Static task
static1
Behavioral task
behavioral1
Sample
loader.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
loader.exe
Resource
win10v2004-20230915-en
General
-
Target
loader.exe
-
Size
520KB
-
MD5
7d82c29c73fb4cead041899fb2605148
-
SHA1
e45a56bc0595227e9f6eb1fdfb49ebee9254bde4
-
SHA256
261a93bc9696a441ff80ae715e2bd7202135a4ebf2ae35a38033131ead386df4
-
SHA512
3f7ad136961a3e8409bdc16c21d567548a880ee49fa172bcc697442a1c13f5eb2cef6e3377a256eb5908eebdfdad7f2584b1949c025462f1294de07995902309
-
SSDEEP
12288:s+sSDaPhAKpx50MSrJ52Eu/CLIUfMKz3:sFSDQhAWxSrJM1/CXkK
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource loader.exe
Files
-
loader.exe.exe windows:6 windows x64
b1a73e0a59f568ed89fbeb4279c2b606
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
kernel32
CloseHandle
WideCharToMultiByte
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetModuleHandleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
OutputDebugStringW
EnterCriticalSection
LeaveCriticalSection
GetModuleHandleA
SetLastError
FormatMessageA
SleepEx
VerSetConditionMask
QueryPerformanceFrequency
GetSystemDirectoryA
FreeLibrary
GetProcAddress
LoadLibraryA
VerifyVersionInfoA
GetTickCount
MoveFileExA
WaitForSingleObjectEx
MultiByteToWideChar
GetEnvironmentVariableA
GetStdHandle
GetFileType
ReadFile
PeekNamedPipe
WaitForMultipleObjects
CreateFileA
GetFileSizeEx
GetCurrentProcess
DeleteCriticalSection
GetLastError
Sleep
InitializeCriticalSectionEx
user32
GetAsyncKeyState
MessageBoxA
advapi32
CryptEncrypt
CryptImportKey
CryptDestroyKey
CryptDestroyHash
CryptHashData
CryptCreateHash
CryptGenRandom
CryptGetHashParam
CryptReleaseContext
CryptAcquireContextA
msvcp140
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?_Xout_of_range@std@@YAXPEBD@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Xbad_function_call@std@@YAXXZ
?setw@std@@YA?AU?$_Smanip@_J@1@_J@Z
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?_Xlength_error@std@@YAXPEBD@Z
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?uncaught_exception@std@@YA_NXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?good@ios_base@std@@QEBA_NXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
ntdll
RtlVirtualUnwind
RtlCaptureContext
RtlLookupFunctionEntry
vcruntime140_1
__CxxFrameHandler4
vcruntime140
strrchr
memcpy
memcmp
strchr
strstr
__std_exception_destroy
__std_exception_copy
__std_terminate
__C_specific_handler
memchr
memmove
memset
__current_exception_context
__current_exception
_CxxThrowException
api-ms-win-crt-runtime-l1-1-0
_beginthreadex
_register_onexit_function
_crt_atexit
exit
_cexit
_set_app_type
_initialize_onexit_table
_get_initial_narrow_environment
_initterm
_initterm_e
_configure_narrow_argv
_exit
__p___argc
_getpid
__sys_nerr
_errno
strerror
system
_invalid_parameter_noinfo_noreturn
__p___argv
_c_exit
_initialize_narrow_environment
_seh_filter_exe
abort
terminate
_register_thread_local_exe_atexit_callback
api-ms-win-crt-heap-l1-1-0
malloc
realloc
_callnewh
_set_new_mode
free
calloc
api-ms-win-crt-utility-l1-1-0
qsort
rand
api-ms-win-crt-stdio-l1-1-0
_open
__stdio_common_vsprintf
fread
_set_fmode
fwrite
fputc
fclose
fgets
fputs
__stdio_common_vsscanf
feof
fseek
ftell
fflush
__acrt_iob_func
_lseeki64
fopen
_read
_write
_close
__p__commode
api-ms-win-crt-time-l1-1-0
_time64
_gmtime64
api-ms-win-crt-filesystem-l1-1-0
_stat64
_unlink
_access
_fstat64
api-ms-win-crt-math-l1-1-0
_dclass
__setusermatherr
api-ms-win-crt-locale-l1-1-0
localeconv
_configthreadlocale
api-ms-win-crt-convert-l1-1-0
strtoull
strtoul
strtod
strtoll
atoi
strtol
api-ms-win-crt-string-l1-1-0
strncpy
strncmp
_strdup
isupper
strspn
strcspn
tolower
strpbrk
strcmp
normaliz
IdnToAscii
wldap32
ord33
ord35
ord79
ord30
ord200
ord301
ord26
ord32
ord45
ord60
ord211
ord46
ord217
ord143
ord22
ord50
ord27
ord41
crypt32
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateContext
CertOpenStore
CryptStringToBinaryA
PFXImportCertStore
CryptDecodeObjectEx
CertAddCertificateContextToStore
CertFindExtension
CertFreeCertificateChainEngine
CertFreeCertificateChain
CertGetCertificateChain
CertCloseStore
CertCreateCertificateChainEngine
CryptQueryObject
CertGetNameStringA
ws2_32
gethostname
ntohl
sendto
recvfrom
freeaddrinfo
closesocket
recv
send
WSAGetLastError
bind
connect
getpeername
getsockname
getsockopt
htons
ntohs
setsockopt
socket
WSASetLastError
WSAIoctl
WSAStartup
WSACleanup
accept
htonl
listen
ioctlsocket
__WSAFDIsSet
select
getaddrinfo
Sections
.text Size: 404KB - Virtual size: 404KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 94KB - Virtual size: 94KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 17KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 488B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ