Loader[.]exe | Triage

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General

Target

Loader.exe
Size

2.3MB
MD5

8840f0eaa86666bea58bcc2d562fdbce
SHA1

43c54a667146ccf98d66194c1257587d9352b207
SHA256

b779ed8178a873c13698526da60150f9af3f3b41c6a882f5254257e2d6f6d316
SHA512

ca4994718b5cecaa544ce8e4602b885c2b34888f43742f1080ad1f9bf6bcd92431fa8093fd9addf6952ae2ae051fc1892ab7369361aee52c81b730e9df1397ae
SSDEEP

49152:yQaKQSd3q4YYeXLjVMyw1GF3dLycaSPmWCMTV8s5j4KtfbxK:yQa4NAREGdM9VWC

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Loader.exe

Files

Loader.exe
.exe windows:6 windows x86 arch:x86

200590a5004f4b23246be1e37dc6878f

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

C:\Users\sixten.westh\Downloads\digiexam7digidoom\digiexam7digidoom\digiexam memject-keyauth-with second injection\digiexam memject-keyauth-with second injection\digiexam memject-keyauth\Release\Loader.pdb

Imports

ws2_32

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

crypt32

CertGetCertificateContextProperty
CertDuplicateCertificateContext
CertOpenStore
CertCloseStore
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateContext
CryptStringToBinaryA
CertAddCertificateContextToStore
CertGetNameStringA
CryptQueryObject
CertCreateCertificateChainEngine
CertFreeCertificateChainEngine
CertGetCertificateChain
CertFreeCertificateChain

advapi32

CryptDestroyHash
CryptEnumProvidersW
CryptSignHashW
CryptDecrypt
CryptExportKey
CryptGetUserKey
CryptGetProvParam
CryptSetHashParam
CryptDestroyKey
CryptAcquireContextW
ReportEventW
RegisterEventSourceW
DeregisterEventSource
GetTokenInformation
CryptHashData
CryptCreateHash
CryptGenRandom
CryptGetHashParam
CryptReleaseContext
CryptAcquireContextA
ConvertSidToStringSidA
CopySid
IsValidSid
OpenProcessToken
GetLengthSid

kernel32

WriteFile
GetModuleHandleW
GetCurrentProcessId
GetSystemTimeAsFileTime
SwitchToFiber
DeleteFiber
CreateFiber
LoadLibraryW
ConvertFiberToThread
ConvertThreadToFiber
FindClose
FindFirstFileW
FindNextFileW
GetSystemTime
SystemTimeToFileTime
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsProcessorFeaturePresent
InitializeSListHead
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
OutputDebugStringW
TlsFree
WriteProcessMemory
HeapFree
SetConsoleTitleA
GetCurrentProcess
InitializeCriticalSectionEx
WaitForSingleObject
GetModuleHandleA
OpenProcess
HeapSize
CreateToolhelp32Snapshot
Sleep
GetLastError
Process32NextW
LoadLibraryA
DeleteFileA
Process32FirstW
HeapReAlloc
CloseHandle
HeapAlloc
HeapDestroy
GetProcAddress
VirtualAllocEx
LocalFree
DeleteCriticalSection
GetProcessHeap
CreateRemoteThread
SetConsoleOutputCP
VirtualFreeEx
lstrcmpW
SetLastError
QueryPerformanceCounter
QueryPerformanceFrequency
FormatMessageA
EnterCriticalSection
LeaveCriticalSection
SleepEx
VerSetConditionMask
GetSystemDirectoryA
FreeLibrary
VerifyVersionInfoA
GetTickCount
WaitForSingleObjectEx
ExpandEnvironmentStringsA
CreateFileA
GetFileSizeEx
ReadFile
GetEnvironmentVariableW
WideCharToMultiByte
GetStdHandle
GetConsoleMode
SetConsoleMode
ReadConsoleA
ReadConsoleW
InitializeCriticalSectionAndSpinCount
GetCurrentThreadId
TlsAlloc
TlsGetValue
TlsSetValue
IsDebuggerPresent
GetModuleHandleExW
MultiByteToWideChar
FormatMessageW
GetFileType

user32

MessageBoxA
FindWindowA
GetAsyncKeyState
GetProcessWindowStation
GetUserObjectInformationW
MessageBoxW

shell32

ShellExecuteA

msvcp140

?set_new_handler@std@@YAP6AXXZP6AXXZ@Z
??Bid@locale@std@@QAEIXZ
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QAEAAV01@AAH@Z
?_Getcat@?$ctype@D@std@@SAIPAPBVfacet@locale@2@PBV42@@Z
??Bios_base@std@@QBE_NXZ
?good@ios_base@std@@QBE_NXZ
?getloc@ios_base@std@@QBE?AVlocale@2@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@P6AAAV01@AAV01@@Z@Z
_Query_perf_frequency
??1_Lockit@std@@QAE@XZ
??0_Lockit@std@@QAE@H@Z
?_Throw_Cpp_error@std@@YAXH@Z
?uncaught_exceptions@std@@YAHXZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Getgloballocale@locale@std@@CAPAV_Locimp@12@XZ
?uncaught_exception@std@@YA_NXZ
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Xout_of_range@std@@YAXPBD@Z
?_Xbad_function_call@std@@YAXXZ
?id@?$ctype@D@std@@2V0locale@2@A
?_Xlength_error@std@@YAXPBD@Z
_Cnd_do_broadcast_at_thread_exit
_Thrd_sleep
_Thrd_id
_Query_perf_counter
_Xtime_get_ticks
_Thrd_join
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QAE_N_N@Z
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHXZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAE_JPBD_J@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEDD@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@D@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHD@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@XZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QAEXH_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@H@Z

userenv

UnloadUserProfile

rpcrt4

RpcStringFreeA
UuidCreate
UuidToStringA

bcrypt

BCryptGenRandom

vcruntime140

strstr
__current_exception
strchr
memset
memmove
memcpy
_CxxThrowException
wcsstr
__RTDynamicCast
_except_handler4_common
__current_exception_context
__std_exception_destroy
strrchr
memchr
__std_terminate
__std_type_info_name
_purecall
__std_type_info_compare
__CxxFrameHandler3
__std_exception_copy

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

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

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

_aligned_free
malloc
calloc
_aligned_malloc
_set_new_mode
realloc
free
_callnewh

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

srand
qsort
rand

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

_gmtime64
_localtime64_s
_gmtime64_s
_time64

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

strtoll
strtoul
atoi
strtod
strtol
strtoull

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

localeconv
_configthreadlocale

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

__acrt_iob_func
__stdio_common_vswprintf
fread
_wfopen
__stdio_common_vfprintf
fwrite
fclose
fopen
setbuf
clearerr
_setmode
fseek
_fileno
ferror
feof
fputs
setvbuf
_set_fmode
fgets
fflush
fputc
__stdio_common_vsscanf
ftell
__p__commode
__stdio_common_vsprintf

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

tolower
strspn
strncpy
_stricmp
strpbrk
isupper
strcmp
strncmp
isspace
_strdup
_strnicmp
strcspn

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

__setusermatherr
_dclass

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

_stat64
_stat64i32
_access
_fstat64i32

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

getenv

Sections

.text
Size: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 493KB - Virtual size: 492KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 45KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 488B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 75KB - Virtual size: 75KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

200590a5004f4b23246be1e37dc6878f

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

ws2_32

crypt32

advapi32

kernel32

user32

shell32

msvcp140

userenv

rpcrt4

bcrypt

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-time-l1-1-0

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

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

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

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

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

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

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

Sections

.text Size: 1.7MB - Virtual size: 1.7MB

.rdata Size: 493KB - Virtual size: 492KB

.data Size: 45KB - Virtual size: 64KB

.rsrc Size: 512B - Virtual size: 488B

.reloc Size: 75KB - Virtual size: 75KB

.text
Size: 1.7MB - Virtual size: 1.7MB

.rdata
Size: 493KB - Virtual size: 492KB

.data
Size: 45KB - Virtual size: 64KB

.rsrc
Size: 512B - Virtual size: 488B

.reloc
Size: 75KB - Virtual size: 75KB