Static task
static1
Behavioral task
behavioral1
Sample
cshSkins.dll
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
cshSkins.dll
Resource
win10v2004-20231201-en
Behavioral task
behavioral3
Sample
hostdll.exe
Resource
win7-20231201-en
Behavioral task
behavioral4
Sample
hostdll.exe
Resource
win10v2004-20231201-en
General
-
Target
311dc11f775276dce246c345afd54dd7
-
Size
232KB
-
MD5
311dc11f775276dce246c345afd54dd7
-
SHA1
41279f0854d5fc3287aa0323d2038a8b684ba262
-
SHA256
24782fcdcdb46202b76aa99158089ae7443d5609ecfc8c3e3c60252acd05ba2b
-
SHA512
ca8451ca6e64f30d1554f905772362c7d2123b2976f8b335741506c87cbca6d7c1d0375094bed7cff9fe981438cff5900994ca745c40ca330dc32ec58c345e55
-
SSDEEP
6144:NSkyU5aBAQ4XI1JeR2if6gStayMCyikaxmPjKodhCkg8:IkyU6uI1MCayMCdkaxm7BkR8
Malware Config
Signatures
-
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/cshSkins.dll unpack001/hostdll.exe
Files
-
311dc11f775276dce246c345afd54dd7.rar
-
cshSkins.dll.dll windows:6 windows x86 arch:x86
15552dc2cbf838de256f7e09df973d63
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
Imports
kernel32
QueryPerformanceCounter
QueryPerformanceFrequency
CreateThread
DisableThreadLibraryCalls
Sleep
GetCurrentProcess
VirtualQuery
GetModuleHandleA
GetProcAddress
K32GetModuleInformation
GlobalUnlock
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
GlobalLock
InitializeSListHead
GlobalAlloc
user32
SetCursor
GetClientRect
GetKeyState
EmptyClipboard
GetClipboardData
SetClipboardData
SetWindowLongW
CloseClipboard
OpenClipboard
CallWindowProcW
msvcp140
?_Xlength_error@std@@YAXPBD@Z
?_Xout_of_range@std@@YAXPBD@Z
??Bid@locale@std@@QAEIXZ
?_Getgloballocale@locale@std@@CAPAV_Locimp@12@XZ
?always_noconv@codecvt_base@std@@QBE_NXZ
?in@?$codecvt@DDU_Mbstatet@@@std@@QBEHAAU_Mbstatet@@PBD1AAPBDPAD3AAPAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QBEHAAU_Mbstatet@@PBD1AAPBDPAD3AAPAD@Z
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QBEHAAU_Mbstatet@@PAD1AAPAD@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SAIPAPBVfacet@locale@2@PBV42@@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IAE@XZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UAE@XZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QBE?AVlocale@2@XZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHXZ
?sungetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAE_JPBD_J@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IAEPADXZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IAEXXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAE_JPAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAE_JPBD_J@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UAE@XZ
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QAEXH_N@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QAEXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IAE@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QAE@PAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UAE@XZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEXXZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@P6AAAVios_base@1@AAV21@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@H@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@D@Z
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@PBD_J@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@XZ
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QAE@PAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UAE@XZ
?putback@?$basic_istream@DU?$char_traits@D@std@@@std@@QAEAAV12@D@Z
?unget@?$basic_istream@DU?$char_traits@D@std@@@std@@QAEAAV12@XZ
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QAE@PAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UAE@XZ
?_Fiopen@std@@YAPAU_iobuf@@PBDHH@Z
?_Xbad_function_call@std@@YAXXZ
?setw@std@@YA?AU?$_Smanip@_J@1@_J@Z
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UAEXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UAEXXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAEXABVlocale@2@@Z
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAEPAV12@PAD_J@Z
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAE_JXZ
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAEHXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAEHXZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?uncaught_exception@std@@YA_NXZ
??1_Lockit@std@@QAE@XZ
??0_Lockit@std@@QAE@H@Z
imm32
ImmGetContext
ImmSetCompositionWindow
vcruntime140
__current_exception
strstr
_except_handler4_common
__std_type_info_destroy_list
strchr
memset
memmove
__CxxFrameHandler3
memcpy
_CxxThrowException
__std_exception_destroy
__std_exception_copy
__std_terminate
__current_exception_context
api-ms-win-crt-runtime-l1-1-0
_errno
_initterm_e
_initterm
_invalid_parameter_noinfo_noreturn
_cexit
_crt_atexit
_execute_onexit_table
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
_seh_filter_dll
terminate
api-ms-win-crt-math-l1-1-0
ceil
_CIfmod
__libm_sse2_powf
_dclass
_dsign
api-ms-win-crt-heap-l1-1-0
_callnewh
malloc
free
api-ms-win-crt-convert-l1-1-0
strtod
atoi
strtoll
strtoull
api-ms-win-crt-string-l1-1-0
isdigit
isprint
strcpy_s
strcat_s
strncpy
api-ms-win-crt-stdio-l1-1-0
__stdio_common_vsprintf_s
fflush
fsetpos
_wfopen
fseek
fread
ftell
fwrite
setvbuf
ungetc
__stdio_common_vsprintf
__stdio_common_vfprintf
_fseeki64
__stdio_common_vsscanf
fputc
fgetpos
_get_stream_buffer_pointers
fclose
fgetc
__acrt_iob_func
api-ms-win-crt-filesystem-l1-1-0
_unlock_file
_lock_file
api-ms-win-crt-locale-l1-1-0
localeconv
api-ms-win-crt-utility-l1-1-0
qsort
rand
Sections
.text Size: 225KB - Virtual size: 225KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 37KB - Virtual size: 37KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
_RDATA Size: 19KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
hostdll.exe.exe windows:6 windows x86 arch:x86
4fc0834fad348db2c3e85a4e6c824a82
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
Imports
advapi32
AdjustTokenPrivileges
LookupPrivilegeValueW
OpenProcessToken
kernel32
GetStdHandle
CloseHandle
WaitForSingleObject
GetCurrentProcess
CreateRemoteThread
GetExitCodeThread
OpenProcess
VirtualAllocEx
VirtualFreeEx
WriteProcessMemory
LoadLibraryW
SetConsoleTextAttribute
SetConsoleTitleA
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
MultiByteToWideChar
EncodePointer
DecodePointer
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
GetProcAddress
CompareStringW
LCMapStringW
GetLocaleInfoW
GetStringTypeW
GetCPInfo
SetEvent
ResetEvent
WaitForSingleObjectEx
IsProcessorFeaturePresent
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
InitializeSListHead
TerminateProcess
RaiseException
RtlUnwind
GetLastError
FreeLibrary
LoadLibraryExW
GetFullPathNameW
HeapAlloc
HeapFree
HeapReAlloc
ExitProcess
GetModuleHandleExW
GetModuleFileNameA
WriteFile
GetCommandLineA
GetCommandLineW
GetACP
GetDriveTypeW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetFileType
FlushFileBuffers
GetConsoleCP
GetConsoleMode
ReadFile
SetFilePointerEx
GetProcessHeap
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SetStdHandle
GetCurrentDirectoryW
WriteConsoleW
ReadConsoleW
CreateFileW
HeapSize
SetEndOfFile
Sections
.text Size: 136KB - Virtual size: 135KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 58KB - Virtual size: 58KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.gfids Size: 512B - Virtual size: 452B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.tls Size: 512B - Virtual size: 9B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ