Behavioral task
behavioral1
Sample
nsa.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
nsa.exe
Resource
win10v2004-20240220-en
General
-
Target
nsa.exe
-
Size
72KB
-
MD5
6d73b1e2c2c8d9b2242ab359ff9f41c8
-
SHA1
c7fd303ebabad73fda93763514a837004d4db35e
-
SHA256
ca3791726b36a4aa9d0713558529c4ee9b7649146da3926b0bfc137d5553ba80
-
SHA512
a2cc49030703d2e97dfb70617633ce0bf27ec2b34b5fb31e0decd0efc4e6b08c4a1bb0273b5e1b1acbd308a036debd16f729b63368725d4f22a5817fce8869f4
-
SSDEEP
1536:IVk38HAudhzF0pgK5ImFSgDzwDMb+KR0Nc8QsJq39:s4iFde7xDzwDe0Nc8QsC9
Malware Config
Extracted
metasploit
windows/reverse_tcp
144.24.134.156:4000
Signatures
-
Metasploit family
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource nsa.exe
Files
-
nsa.exe.exe windows:4 windows x86 arch:x86
481f47bbb2c9c21e108d65f52b04c448
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
msvcrt
_iob
_except_handler3
__set_app_type
__p__fmode
__p__commode
_adjust_fdiv
__setusermatherr
_initterm
__getmainargs
__p___initenv
_XcptFilter
_exit
_onexit
__dllonexit
strrchr
wcsncmp
_close
wcslen
wcscpy
strerror
modf
strspn
realloc
__p__environ
__p__wenviron
_errno
free
strncmp
strstr
strncpy
_ftol
qsort
fopen
perror
fclose
fflush
calloc
malloc
signal
printf
_isctype
atoi
exit
__mb_cur_max
_pctype
strchr
fprintf
_controlfp
_strdup
_strnicmp
kernel32
PeekNamedPipe
ReadFile
WriteFile
LoadLibraryA
GetProcAddress
GetVersionExA
GetExitCodeProcess
TerminateProcess
LeaveCriticalSection
SetEvent
ReleaseMutex
EnterCriticalSection
DeleteCriticalSection
InitializeCriticalSection
CreateMutexA
GetFileType
SetLastError
FreeEnvironmentStringsW
GetEnvironmentStringsW
GlobalFree
GetCommandLineW
TlsAlloc
TlsFree
DuplicateHandle
GetCurrentProcess
SetHandleInformation
CloseHandle
GetSystemTimeAsFileTime
FileTimeToSystemTime
GetTimeZoneInformation
FileTimeToLocalFileTime
SystemTimeToFileTime
SystemTimeToTzSpecificLocalTime
Sleep
FormatMessageA
GetLastError
WaitForSingleObject
CreateEventA
SetStdHandle
SetFilePointer
CreateFileA
CreateFileW
GetOverlappedResult
DeviceIoControl
GetFileInformationByHandle
LocalFree
advapi32
FreeSid
AllocateAndInitializeSid
wsock32
getsockopt
connect
htons
gethostbyname
ntohl
inet_ntoa
setsockopt
socket
closesocket
select
ioctlsocket
__WSAFDIsSet
WSAStartup
WSACleanup
WSAGetLastError
ws2_32
WSARecv
WSASend
Sections
.text Size: 44KB - Virtual size: 42KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 16KB - Virtual size: 28KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ