AltGen[.]exe | Triage

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General

Target

AltGen.exe
Size

6.9MB
MD5

9540bc472ee042d56e08e1d5352863d1
SHA1

267a9c2d8a3381e1b9956a90157f238274fe70df
SHA256

19cef469ebdd4e0f2f432dcafdd1e7ad20942c782d2d843f31b603063a7197cf
SHA512

d43fe572314d4a8406eb9700879cb27f5afe5be7b413505eb9249a34e75625f6fd9efe222abd0dc1fd77cf40598f5cf82bedd855a1b3e878143ab270df13826c
SSDEEP

98304:Vde7hVC2ZskkTRUbdP3phWKh4iW5GHizasY/:DZisHmF3vOG

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AltGen.exe

Files

AltGen.exe
.exe windows:6 windows x64 arch:x64

613b29ae85d74d18e7e14c9d159e5aae

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

PDB Paths

C:\Users\Denis\Desktop\AltGen\bin\Release\net8.0\win-x64\native\AltGen.pdb

Imports

advapi32

RegCreateKeyExW
RegOpenKeyExW
RegQueryValueExW
RegSetValueExW
RegCloseKey
OpenProcessToken
LookupPrivilegeValueW
AdjustTokenPrivileges
RegEnumKeyExW
RegEnumValueW
GetTokenInformation
DuplicateTokenEx
OpenThreadToken
RevertToSelf
ImpersonateLoggedOnUser
CheckTokenMembership

bcrypt

BCryptImportKey
BCryptImportKeyPair
BCryptOpenAlgorithmProvider
BCryptGetProperty
BCryptCloseAlgorithmProvider
BCryptDestroyKey
BCryptDestroyHash
BCryptGenRandom
BCryptCreateHash
BCryptEncrypt
BCryptHashData
BCryptDecrypt
BCryptFinishHash
BCryptExportKey
BCryptSetProperty

crypt32

CertFreeCertificateChainEngine
CertCloseStore
PFXImportCertStore
PFXExportCertStore
CryptFindOIDInfo
CryptQueryObject
CryptMsgGetParam
CryptMsgClose
CryptImportPublicKeyInfoEx2
CryptFormatObject
CryptDecodeObject
CertVerifyTimeValidity
CertSetCertificateContextProperty
CertSerializeCertificateStoreElement
CertSaveStore
CertOpenStore
CertVerifyCertificateChainPolicy
CertFreeCertificateContext
CertEnumCertificatesInStore
CertDuplicateCertificateContext
CertGetCertificateContextProperty
CertAddCertificateContextToStore
CertAddCertificateLinkToStore
CertControlStore
CertCreateCertificateChainEngine
CertFindCertificateInStore
CertFindExtension
CertFreeCertificateChain
CertGetCertificateChain
CertGetIntendedKeyUsage
CertGetNameStringW
CertGetValidUsages
CertNameToStrW

iphlpapi

GetAdaptersAddresses
GetPerAdapterInfo
GetNetworkParams
if_nametoindex

kernel32

RtlUnwindEx
RtlPcToFileHeader
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
IsDebuggerPresent
InitializeSListHead
GetCurrentProcessId
IsProcessorFeaturePresent
RaiseException
SetUnhandledExceptionFilter
ExitProcess
SetLastError
FormatMessageW
GetLastError
GetCPInfoExW
GetConsoleMode
GetFileType
ReadFile
ReadConsoleW
SetConsoleTitleW
WriteFile
WriteConsoleW
GetConsoleCP
GetConsoleOutputCP
GetStdHandle
MultiByteToWideChar
WideCharToMultiByte
CloseHandle
GetExitCodeProcess
CreateProcessW
OpenProcess
K32EnumProcesses
GetProcessId
DuplicateHandle
CreatePipe
GetCurrentProcess
QueryPerformanceCounter
GetTickCount64
LoadLibraryExW
CancelIoEx
CloseThreadpoolIo
GetCommandLineW
RaiseFailFastException
TzSpecificLocalTimeToSystemTime
SystemTimeToFileTime
FileTimeToSystemTime
GetSystemTime
GetCalendarInfoEx
CompareStringOrdinal
CompareStringEx
FindNLSStringEx
GetLocaleInfoEx
ResolveLocaleName
GetUserPreferredUILanguages
FindStringOrdinal
GetCurrentThread
WaitForSingleObject
Sleep
DeleteCriticalSection
LocalFree
EnterCriticalSection
SleepConditionVariableCS
LeaveCriticalSection
WakeConditionVariable
InitializeCriticalSection
InitializeConditionVariable
CreateThreadpoolTimer
SetThreadpoolTimer
WaitForMultipleObjectsEx
GetCurrentThreadId
CreateThreadpoolWait
SetThreadpoolWait
WaitForThreadpoolWaitCallbacks
CloseThreadpoolWait
CreateThreadpoolWork
CloseThreadpoolWork
SubmitThreadpoolWork
QueryPerformanceFrequency
GetFullPathNameW
GetLongPathNameW
GetCPInfo
LocalAlloc
GetProcAddress
LocaleNameToLCID
LCMapStringEx
EnumTimeFormatsEx
EnumCalendarInfoExEx
CancelSynchronousIo
CreateIoCompletionPort
CreateFileW
CreateThreadpoolIo
StartThreadpoolIo
CancelThreadpoolIo
DeleteFileW
DeviceIoControl
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FlushFileBuffers
FreeLibrary
GetCurrentDirectoryW
GetFileAttributesExW
GetFileInformationByHandleEx
GetModuleFileNameW
GetOverlappedResult
GetSystemDirectoryW
MoveFileExW
OpenThread
QueryUnbiasedInterruptTime
SetFileInformationByHandle
SetFilePointerEx
SetThreadErrorMode
CreateThread
ResumeThread
GetThreadPriority
SetThreadPriority
GetDynamicTimeZoneInformation
GetTimeZoneInformation
GetCurrentProcessorNumberEx
SetEvent
ResetEvent
CreateEventExW
GetEnvironmentVariableW
FlushProcessWriteBuffers
WaitForSingleObjectEx
RtlVirtualUnwind
RtlCaptureContext
RtlRestoreContext
AddVectoredExceptionHandler
FlsAlloc
FlsGetValue
FlsSetValue
CreateEventW
TerminateProcess
SwitchToThread
SuspendThread
GetThreadContext
SetThreadContext
FlushInstructionCache
VirtualAlloc
VirtualProtect
VirtualFree
QueryInformationJobObject
GetModuleHandleW
GetModuleHandleExW
GetProcessAffinityMask
InitializeContext
GetEnabledXStateFeatures
SetXStateFeaturesMask
VirtualQuery
InitializeCriticalSectionEx
GetSystemTimeAsFileTime
DebugBreak
SleepEx
GlobalMemoryStatusEx
GetSystemInfo
GetLogicalProcessorInformation
GetLogicalProcessorInformationEx
GetLargePageMinimum
VirtualUnlock
VirtualAllocExNuma
IsProcessInJob
GetNumaHighestNodeNumber
GetProcessGroupAffinity
K32GetProcessMemoryInfo
EncodePointer
DecodePointer
HeapCreate
HeapDestroy
HeapAlloc
HeapFree
GetProcessHeap
UnhandledExceptionFilter
RtlLookupFunctionEntry

ncrypt

NCryptFreeObject
NCryptOpenKey
NCryptDeleteKey
NCryptOpenStorageProvider
NCryptGetProperty
NCryptSetProperty
NCryptImportKey

ole32

CoInitializeEx
CoUninitialize
CoCreateGuid
CoTaskMemFree
CoTaskMemAlloc
CoGetApartmentType
CoWaitForMultipleHandles

user32

LoadStringW

ws2_32

select
send
recv
ioctlsocket
getsockopt
setsockopt
bind
WSASend
WSARecv
WSAGetOverlappedResult
WSAConnect
WSAIoctl
getpeername
GetAddrInfoExW
closesocket
GetNameInfoW
GetAddrInfoW
FreeAddrInfoW
WSASocketW
WSAEventSelect
WSAStartup
WSACleanup
FreeAddrInfoExW
shutdown

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

_callnewh
calloc
malloc
_set_new_mode
free

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

log2
__setusermatherr
ceil
cos
floor
pow
sin
tan
modf

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

strncpy_s
strcmp
_stricmp
wcsncmp
strcpy_s

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

strtoull

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

_initialize_onexit_table
_register_thread_local_exe_atexit_callback
_register_onexit_function
abort
_set_app_type
_configure_wide_argv
_initialize_wide_environment
_get_initial_wide_environment
_c_exit
exit
_crt_atexit
_seh_filter_exe
_cexit
_initterm
__p___wargv
__p___argc
terminate
_initterm_e
_exit

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

__stdio_common_vsscanf
__stdio_common_vsprintf_s
__stdio_common_vfprintf
__acrt_iob_func
__p__commode
_set_fmode

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

_configthreadlocale

Exports

Exports

DotNetRuntimeDebugHeader

Sections

.text
Size: 773KB - Virtual size: 773KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.managed
Size: 3.2MB - Virtual size: 3.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

hydrated
Size: - Virtual size: 1.3MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 2.7MB - Virtual size: 2.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 24KB - Virtual size: 126KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 262KB - Virtual size: 261KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

613b29ae85d74d18e7e14c9d159e5aae

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

bcrypt

crypt32

iphlpapi

kernel32

ncrypt

ole32

user32

ws2_32

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

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

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

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

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

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

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

Exports

Exports

Sections

.text Size: 773KB - Virtual size: 773KB

.managed Size: 3.2MB - Virtual size: 3.2MB

hydrated Size: - Virtual size: 1.3MB

.rdata Size: 2.7MB - Virtual size: 2.7MB

.data Size: 24KB - Virtual size: 126KB

.pdata Size: 262KB - Virtual size: 261KB

.rsrc Size: 2KB - Virtual size: 1KB

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

.text
Size: 773KB - Virtual size: 773KB

.managed
Size: 3.2MB - Virtual size: 3.2MB

hydrated
Size: - Virtual size: 1.3MB

.rdata
Size: 2.7MB - Virtual size: 2.7MB

.data
Size: 24KB - Virtual size: 126KB

.pdata
Size: 262KB - Virtual size: 261KB

.rsrc
Size: 2KB - Virtual size: 1KB

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