Static task
static1
Behavioral task
behavioral1
Sample
signstream_windows_20031210.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
signstream_windows_20031210.exe
Resource
win10v2004-20231023-en
General
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Target
signstream_windows_20031210.exe
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Size
1.7MB
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MD5
015b770548aae05a9057ea30407f78ab
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SHA1
b22fb5b86e51abab374eefd923aba50a5433c3ae
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SHA256
efc5493a615ede856065b997899a192265a60088a27c22e39f5509abb7d3e641
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SHA512
a46a7261d09a755b190ef201e870fb86e5a51f9a07335f4e0b5025a93035e73a958ec4c28db2c0f7f654b51e325f7f872038e89acc1487c8904875cdb5e934d1
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SSDEEP
49152:7qYqFnBR6aXNu10JAAj+ReeZ42N1/7wmILLRjv:PqPTomODL10v
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource signstream_windows_20031210.exe
Files
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signstream_windows_20031210.exe.exe windows:4 windows x86
33b133a588e92008071e50c4c3be31a1
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_DEBUG_STRIPPED
Imports
comdlg32
GetOpenFileNameA
advapi32
RegCloseKey
RegCreateKeyExA
RegEnumKeyExA
RegOpenKeyExA
RegQueryValueExA
RegSetValueExA
comctl32
InitCommonControls
gdi32
BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
CreateFontIndirectA
DeleteDC
DeleteObject
GetBkMode
GetDeviceCaps
GetStockObject
SelectObject
SetBkMode
SetTextColor
TextOutA
kernel32
CloseHandle
CreateDirectoryA
CreateFileA
CreateMutexA
CreatePipe
CreateProcessA
CreateThread
DeleteFileA
DuplicateHandle
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileA
FindNextFileA
GetCommandLineA
GetCurrentProcess
GetCurrentProcessId
GetEnvironmentVariableA
GetExitCodeProcess
GetFileSize
GetFullPathNameA
GetLastError
GetModuleFileNameA
GetModuleHandleA
GetProcAddress
GetStartupInfoA
GetTempFileNameA
GetTempPathA
GetTickCount
GetVersionExA
InitializeCriticalSection
InterlockedIncrement
LeaveCriticalSection
LoadLibraryA
MulDiv
ReadFile
ReleaseMutex
RemoveDirectoryA
SearchPathA
SetEnvironmentVariableA
SetFilePointer
SetLastError
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
TlsAlloc
TlsGetValue
TlsSetValue
WaitForSingleObject
WriteFile
msvcrt
_close
_fdopen
_fileno
_fstat
_isatty
_lseek
_open
_read
_write
_HUGE
__getmainargs
__mb_cur_max
__p__environ
__set_app_type
_assert
_cexit
_chdir
_errno
_fileno
_fmode
_fpreset
_fullpath
_getcwd
_iob
_isctype
_itoa
_mkdir
_pctype
_putenv
_setmode
_strlwr
abort
atexit
atoi
calloc
difftime
exit
fclose
ferror
fflush
fgets
fopen
fprintf
fputc
fread
free
freopen
fseek
ftell
fwprintf
fwrite
getc
malloc
mbstowcs
memchr
memcpy
memmove
memset
mktime
rand
remove
rewind
signal
sprintf
srand
strcat
strchr
strcmp
strcpy
strncmp
strncpy
strrchr
strstr
strtok
strtol
strtoul
swprintf
time
vsprintf
wcscpy
wcstombs
user32
BeginPaint
CopyRect
CreateWindowExA
DefDlgProcA
DefWindowProcA
DialogBoxParamA
DrawTextExA
EndDialog
EndPaint
EnumWindows
FillRect
GetDesktopWindow
GetDlgItem
GetLastActivePopup
GetParent
GetWindowRect
GetWindowThreadProcessId
InvalidateRect
IsIconic
IsWindowVisible
KillTimer
LoadCursorA
LoadIconA
LoadImageA
MessageBoxA
MessageBoxW
OffsetRect
PostQuitMessage
RegisterClassA
SendDlgItemMessageA
SetDlgItemTextA
SetForegroundWindow
SetTimer
SetWindowPos
SetWindowTextA
ShowWindow
UpdateWindow
Sections
.text Size: 150KB - Virtual size: 150KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.bss Size: - Virtual size: 105KB
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
.rsrc Size: 25KB - Virtual size: 25KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE