mono[.]dll | Triage

Sharing

Copy URL

Twitter E-mail

General

Target

mono.dll
Size

1.3MB
MD5

c5f72cba67c646699f1eae560c68526e
SHA1

5878c0ee13aee3f6c9b2954c03ebfeb9fd2daeaa
SHA256

c9ca1b4914495015ff1c4987cef248df97c743242f5c498a1bd07786d508abdc
SHA512

de2ca2706f939ce659bbd5182c080716d0fb23f18a3a9e2e4c1a500dc6b42ec516b83dde565202243ff827e14ed5b7dc5f1c43b47224e00fa41976ff9443bb4f
SSDEEP

24576:dDTNKK87f4ZU2wWgRPcvtd5cqX0Inwpj4lHWALxycRy1g76yW6xnO:3nwl4l2ALNRyupxn

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
mono.dll

Files

mono.dll
.dll windows:6 windows x64 arch:x64

617a505260cc5663df1ba140d89d57bb

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

xxhash

XXH32

zstd

ZSTD_isError
ZSTD_compressBound
ZSTD_compress
ZSTD_maxCLevel

libcurl

curl_easy_cleanup
curl_easy_init
curl_free
curl_easy_escape
curl_easy_getinfo
curl_easy_perform
curl_easy_setopt
curl_version_info
curl_slist_free_all
curl_slist_append
curl_mime_free

wsock32

getsockname
getpeername
inet_ntoa
getsockopt
htonl
ord1141
ord1142
bind
htons
listen
closesocket
WSASetLastError
WSACleanup
WSAStartup
shutdown
ntohl
ntohs
setsockopt
select
WSAGetLastError

ws2_32

WSAStringToAddressW
WSASend
WSARecv
WSASocketW
WSAAddressToStringW

shlwapi

PathFindExtensionA

kernel32

RtlCaptureContext
SleepConditionVariableSRW
WakeAllConditionVariable
GetFileInformationByHandleEx
AreFileApisANSI
SetFileInformationByHandle
GetFileAttributesExW
RtlVirtualUnwind
FindNextFileW
FindFirstFileExW
FindFirstFileW
FindClose
CreateFileW
CreateDirectoryW
InitOnceComplete
InitOnceBeginInitialize
GetLocaleInfoEx
Sleep
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
IsProcessorFeaturePresent
RtlLookupFunctionEntry
IsDebuggerPresent
UnhandledExceptionFilter
GetStdHandle
CloseHandle
GetCurrentProcess
WriteProcessMemory
AssignProcessToJobObject
SetInformationJobObject
TerminateProcess
GetModuleHandleW
GetProcAddress
LoadLibraryW
CreateJobObjectA
AllocConsole
GetConsoleScreenBufferInfo
SetConsoleTextAttribute
SetConsoleTitleA
CreateToolhelp32Snapshot
Process32First
Process32Next
GetLastError
SetLastError
CreateIoCompletionPort
GetQueuedCompletionStatus
PostQueuedCompletionStatus
CancelIoEx
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
SetEvent
ReleaseMutex
WaitForSingleObject
SleepEx
CreateMutexW
CreateEventW
SetWaitableTimer
WaitForMultipleObjects
QueueUserAPC
GetCurrentProcessId
TerminateThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GlobalAlloc
GlobalUnlock
GlobalLock
GlobalFree
LocalFree
FormatMessageA
CreateWaitableTimerA
MultiByteToWideChar
WideCharToMultiByte
OpenThread
GetThreadContext
OpenProcess
VirtualAllocEx
VirtualQueryEx
ReadProcessMemory
GetModuleHandleA
QueryPerformanceCounter
GetCurrentThreadId
SetUnhandledExceptionFilter
GetSystemTimeAsFileTime
DisableThreadLibraryCalls
FreeLibrary
InitializeSListHead

user32

GetDesktopWindow
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
EnumWindows
FindWindowA
SetForegroundWindow
GetForegroundWindow
MapVirtualKeyA
GetWindowThreadProcessId
keybd_event

msvcp140

?_Xinvalid_argument@std@@YAXPEBD@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?id@?$ctype@D@std@@2V0locale@2@A
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
?_LogWorkItemCompleted@_TaskEventLogger@details@Concurrency@@QEAAXXZ
?_LogWorkItemStarted@_TaskEventLogger@details@Concurrency@@QEAAXXZ
?_LogTaskExecutionCompleted@_TaskEventLogger@details@Concurrency@@QEAAXXZ
?_LogTaskCompleted@_TaskEventLogger@details@Concurrency@@QEAAXXZ
?_LogCancelTask@_TaskEventLogger@details@Concurrency@@QEAAXXZ
?_LogScheduleTask@_TaskEventLogger@details@Concurrency@@QEAAX_N@Z
??0task_continuation_context@Concurrency@@AEAA@XZ
?ReportUnhandledError@_ExceptionHolder@details@Concurrency@@AEAAXXZ
?_Capture@_ContextCallback@details@Concurrency@@AEAAXXZ
?_Reset@_ContextCallback@details@Concurrency@@AEAAXXZ
?_CallInContext@_ContextCallback@details@Concurrency@@QEBAXV?$function@$$A6AXXZ@std@@_N@Z
?_ReportUnobservedException@details@Concurrency@@YAXXZ
?_Release_chore@details@Concurrency@@YAXPEAU_Threadpool_chore@12@@Z
?_Schedule_chore@details@Concurrency@@YAHPEAU_Threadpool_chore@12@@Z
?_Xbad_function_call@std@@YAXXZ
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
?gcount@?$basic_istream@DU?$char_traits@D@std@@@std@@QEBA_JXZ
?read@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEAD_J@Z
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@PEBX@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@I@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@G@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_N@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
?imbue@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAA?AVlocale@2@AEBV32@@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?GetCurrentThreadId@platform@details@Concurrency@@YAJXZ
?_Xbad_alloc@std@@YAXXZ
?_Xlength_error@std@@YAXPEBD@Z
?_Xout_of_range@std@@YAXPEBD@Z
?uncaught_exceptions@std@@YAHXZ
_Query_perf_counter
_Query_perf_frequency
_Thrd_detach
_Cnd_do_broadcast_at_thread_exit
?_Throw_Cpp_error@std@@YAXH@Z
?good@ios_base@std@@QEBA_NXZ
?flags@ios_base@std@@QEBAHXZ
?setf@ios_base@std@@QEAAHHH@Z
?width@ios_base@std@@QEBA_JXZ
?width@ios_base@std@@QEAA_J_J@Z
?xalloc@ios_base@std@@SAHXZ
?iword@ios_base@std@@QEAAAEAJH@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ
?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAADD@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_K@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?get@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAHXZ
?setw@std@@YA?AU?$_Smanip@_J@1@_J@Z
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?clog@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
??0_Lockit@std@@QEAA@H@Z
??1_Lockit@std@@QEAA@XZ
?__ExceptionPtrCreate@@YAXPEAX@Z
?__ExceptionPtrDestroy@@YAXPEAX@Z
?__ExceptionPtrCopy@@YAXPEAXPEBX@Z
?__ExceptionPtrAssign@@YAXPEAXPEBX@Z
?__ExceptionPtrToBool@@YA_NPEBX@Z
?__ExceptionPtrCurrentException@@YAXPEAX@Z
?__ExceptionPtrRethrow@@YAXPEBX@Z
?__ExceptionPtrCopyException@@YAXPEAXPEBX1@Z
_Thrd_join
_Thrd_yield
_Thrd_hardware_concurrency
_Thrd_id
_Mtx_init_in_situ
_Mtx_destroy_in_situ
_Mtx_lock
_Mtx_unlock
_Cnd_init_in_situ
_Cnd_destroy_in_situ
_Cnd_wait
_Cnd_broadcast
_Cnd_register_at_thread_exit
_Cnd_unregister_at_thread_exit
?_Syserror_map@std@@YAPEBDH@Z
?_Winerror_map@std@@YAHH@Z
??Bid@locale@std@@QEAA_KXZ
?classic@locale@std@@SAAEBV12@XZ
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?always_noconv@codecvt_base@std@@QEBA_NXZ
?toupper@?$ctype@D@std@@QEBADD@Z
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
??Bios_base@std@@QEBA_NXZ
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pbase@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z
?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?_Gndec@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?_Gninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?_Gnavail@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBA_JXZ
?pbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD0@Z
?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?_Pnavail@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBA_JXZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAPEAD0PEAH001@Z
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z

vcruntime140

memcpy
__C_specific_handler
__std_type_info_compare
memset
memmove
__std_type_info_destroy_list
__current_exception_context
__current_exception
memcmp
_CxxThrowException
_purecall
__std_terminate
__std_exception_copy
__std_exception_destroy
memchr

vcruntime140_1

__CxxFrameHandler4

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

_initterm_e
signal
_initterm
exit
_beginthreadex
_cexit
_invalid_parameter_noinfo_noreturn
abort
_errno
_crt_atexit
_execute_onexit_table
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
terminate
_seh_filter_dll
_invalid_parameter_noinfo

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

malloc
free
_callnewh
_aligned_free
_aligned_malloc

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

srand
rand

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

fseek
fread
fputc
fopen
_fseeki64
fgetc
fflush
fclose
_get_stream_buffer_pointers
ftell
fwrite
setvbuf
_fileno
ungetc
__stdio_common_vsprintf
_isatty
__acrt_iob_func
freopen_s
__stdio_common_vswprintf_s
fsetpos
__stdio_common_vfprintf
fgetpos

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

_localtime64
_time64
strftime
_gmtime64_s

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

_stat64i32
_unlock_file
_lock_file

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

sqrt
sinh
_dsign
sin
log2
log10
log
tan
fmod
_dclass
ceilf
cosh
cos
tanh
floor
pow
ldexp
round
acos
asin
atan
atan2
ceil
exp

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

strtoll
strtoul
strtoull
strtod
atoi

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

strnlen
strspn
tolower
toupper
strncmp
strcspn
strcpy_s
strcmp

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

localeconv
___lc_codepage_func

Exports

Exports

attach
execute

Sections

.text
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 182KB - Virtual size: 182KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 58KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 27KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

617a505260cc5663df1ba140d89d57bb

Headers

DLL Characteristics

File Characteristics

Imports

xxhash

zstd

libcurl

wsock32

ws2_32

shlwapi

kernel32

user32

msvcp140

vcruntime140

vcruntime140_1

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

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

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

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

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

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

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

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

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

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

Exports

Exports

Sections

.text Size: 1.1MB - Virtual size: 1.1MB

.rdata Size: 182KB - Virtual size: 182KB

.data Size: 20KB - Virtual size: 58KB

.pdata Size: 27KB - Virtual size: 26KB

.rsrc Size: 512B - Virtual size: 480B

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

.text
Size: 1.1MB - Virtual size: 1.1MB

.rdata
Size: 182KB - Virtual size: 182KB

.data
Size: 20KB - Virtual size: 58KB

.pdata
Size: 27KB - Virtual size: 26KB

.rsrc
Size: 512B - Virtual size: 480B

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