Behavioral task
behavioral1
Sample
Batch CIA 3DS Decryptor.zip
Resource
win10v2004-20240426-en
Behavioral task
behavioral2
Sample
Batch CIA 3DS Decryptor.bat
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
ctrtool.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral4
Sample
decrypt.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral5
Sample
decrypt.pyc
Resource
win10v2004-20240508-en
Behavioral task
behavioral6
Sample
makerom.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
readme.txt
Resource
win10v2004-20240426-en
General
-
Target
Batch CIA 3DS Decryptor.zip
-
Size
5.0MB
-
MD5
61f5ea0a2e7553a9fa43c4dc208ea17f
-
SHA1
4b2fb1c00d55be894184f098a334daa5b08e555f
-
SHA256
e6c7b104a0a3f8f2f639b767e4be9ab483a1bc57465de106653f211f3b4205eb
-
SHA512
0935d4f5c70d26d74e865b1bace7521f28921aba5745e4621cb8d783f101966837e9eed48e8440e532ecb561d8ee2994c0bfccab461a2d5d8e806e0ad87e25fb
-
SSDEEP
98304:BqYqU2RGhR4qGipsHHF0Rf8KJ6K1jZG8y6Y7yAQlkt8FCEjnpoJyTG6UJj9/X5:AbO4qF+n6RfrJvG8wdbtipoJMUl
Malware Config
Signatures
-
Detects Pyinstaller 1 IoCs
resource yara_rule static1/unpack001/decrypt.exe pyinstaller -
Unsigned PE 3 IoCs
Checks for missing Authenticode signature.
resource unpack001/ctrtool.exe unpack001/decrypt.exe unpack001/makerom.exe
Files
-
Batch CIA 3DS Decryptor.zip.zip
-
Batch CIA 3DS Decryptor.bat.bat .vbs
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ctrtool.exe.exe windows:4 windows x64 arch:x64
7540b2f68364e63bb1dc0d283bd7c2e3
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
AddAtomA
CloseHandle
CreateEventA
CreateMutexA
CreateSemaphoreA
DeleteCriticalSection
DuplicateHandle
EnterCriticalSection
FindAtomA
GetAtomNameA
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetHandleInformation
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetProcAddress
GetProcessAffinityMask
GetStartupInfoA
GetSystemTimeAsFileTime
GetThreadContext
GetThreadPriority
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
QueryPerformanceCounter
RaiseException
ReleaseMutex
ReleaseSemaphore
ResetEvent
ResumeThread
RtlAddFunctionTable
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetCriticalSectionSpinCount
SetEvent
SetLastError
SetProcessAffinityMask
SetThreadContext
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SuspendThread
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
msvcrt
__C_specific_handler
__argv
__dllonexit
__doserrno
__getmainargs
__initenv
__iob_func
__lconv_init
__pioinfo
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_beginthreadex
_cexit
_endthreadex
_errno
_exit
_filelengthi64
_fileno
_fmode
_initterm
_lock
_lseeki64
_mkdir
_onexit
_setjmp
_snwprintf
_stat64
_unlock
_vsnprintf
_wfopen
_wmkdir
_write
_write
_wstat64
abort
atof
atoi
calloc
exit
fclose
ferror
fflush
fgetpos
fgets
fopen
fprintf
fputc
fputs
fputws
fread
free
fseek
fsetpos
ftell
fwprintf
fwrite
getenv
isalnum
isalpha
isspace
longjmp
malloc
memcmp
memcpy
memmove
memset
printf
putchar
puts
raise
realloc
signal
sprintf
sscanf
strchr
strcmp
strcpy
strlen
strncmp
strncpy
strtoul
tolower
vfprintf
vsprintf
wcscpy
wcslen
user32
MessageBoxW
Sections
.text Size: 233KB - Virtual size: 233KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 39KB - Virtual size: 38KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.pdata Size: 13KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.xdata Size: 12KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 11KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 112B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 104B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 848B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/4 Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/19 Size: 66KB - Virtual size: 66KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/31 Size: 10KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/45 Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/57 Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/70 Size: 1024B - Virtual size: 906B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/81 Size: 23KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/92 Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
decrypt.exe.exe windows:4 windows x64 arch:x64
2c9e98790fd9f920c8aca8d84943961f
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
Imports
kernel32
CreateProcessW
DeleteCriticalSection
EnterCriticalSection
ExpandEnvironmentStringsW
FormatMessageA
GetCommandLineW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentVariableW
GetExitCodeProcess
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetProcAddress
GetShortPathNameW
GetStartupInfoW
GetSystemTimeAsFileTime
GetTempPathW
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
RtlAddFunctionTable
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetDllDirectoryW
SetEnvironmentVariableW
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsGetValue
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
WaitForSingleObject
WideCharToMultiByte
__C_specific_handler
msvcrt
__argc
__dllonexit
__iob_func
__lconv_init
__set_app_type
__setusermatherr
__wargv
__wgetmainargs
__winitenv
_amsg_exit
_cexit
_fileno
_findclose
_fmode
_fullpath
_get_osfhandle
_getpid
_initterm
_lock
_onexit
_setmode
_stat64
_strdup
_unlock
_vsnprintf
_vsnwprintf
_wcmdln
_wfindfirst64
_wfindnext64
_wfopen
_wmkdir
_wremove
_wrmdir
_wstat64
_wtempnam
abort
calloc
clearerr
exit
fclose
feof
ferror
fflush
fprintf
fread
free
fseek
ftell
fwrite
getenv
malloc
mbstowcs
memcpy
memset
setbuf
setlocale
signal
sprintf
strcat
strchr
strcmp
strcpy
strlen
strncat
strncmp
strncpy
strrchr
strtok
vfprintf
wcscat
wcscmp
wcscpy
wcslen
ws2_32
ntohl
Sections
.text Size: 39KB - Virtual size: 39KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 168B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.pdata Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.xdata Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 51KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 104B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 104B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 59KB - Virtual size: 58KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
-
decrypt.pyc
-
makerom.exe.exe windows:4 windows x64 arch:x64
652c0cab7ad18cce33959bfbc4f70b7f
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
CloseHandle
CreateFileA
DeleteCriticalSection
EnterCriticalSection
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetFileAttributesW
GetLastError
GetModuleFileNameW
GetModuleHandleA
GetProcAddress
GetStartupInfoA
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
QueryPerformanceCounter
RtlAddFunctionTable
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetEndOfFile
SetFilePointerEx
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsGetValue
UnhandledExceptionFilter
VirtualProtect
VirtualQuery
msvcrt
__C_specific_handler
__dllonexit
__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_errno
_exit
_findclose
_fmode
_getcwd
_initterm
_lock
_mkdir
_onexit
_snwprintf
_stat64
_strdup
_stricmp
_time64
_unlock
_vsnprintf
_wfindfirst64
_wfindnext64
_wfopen
_wfullpath
_wmkdir
_wstat64
abort
calloc
exit
fclose
ferror
fopen
fprintf
fputc
fputs
fputws
fread
free
fseek
fsetpos
ftell
fwprintf
fwrite
isalnum
islower
isspace
isupper
malloc
memcmp
memcpy
memmove
memset
printf
putchar
puts
raise
rand
realloc
signal
sprintf
srand
strchr
strcmp
strcpy
strlen
strncat
strncmp
strncpy
strrchr
strstr
strtol
strtoul
vfprintf
wcscat
wcscmp
wcscpy
wcslen
user32
MessageBoxW
Sections
.text Size: 240KB - Virtual size: 240KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 512B - Virtual size: 184B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 111KB - Virtual size: 110KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.pdata Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.xdata Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 11KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 104B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 104B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 848B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/4 Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/19 Size: 56KB - Virtual size: 55KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/31 Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/45 Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/57 Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/70 Size: 1024B - Virtual size: 847B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/81 Size: 16KB - Virtual size: 15KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/92 Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
readme.txt