Static task
static1
Behavioral task
behavioral1
Sample
cygwin1.dll
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral2
Sample
cygwin1.dll
Resource
win10v2004-20240802-en
windows10-2004-x64
General
-
Target
cygwin1.dll
-
Size
2.8MB
-
MD5
48c35650b84f145c9002be3d6c9e749a
-
SHA1
2502142ce6dd05a14a6ede3d8444bde1d1313c5b
-
SHA256
03350a57e349d984fcf0950fa0e004f7908d096ed13278f2a0f0657f50cec57e
-
SHA512
8e287ad38201515157a0e3eb687a9fd5764d25aec1e03f9505941ddd924719c46b20a8b34f73d1bdd8e11d6cd4c4ba622faf34af9e9102262bb38f8863b707f6
-
SSDEEP
49152:o+swLT0KuNaPrcEBz0py9+7+Rxghil6Wtlf49IzkzA4niCsu0wiJPg+LnBJEy1uZ:ds6puNaPrcEBz0AfCil6YHoxnUpwiJPY
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource cygwin1.dll
Files
-
cygwin1.dll.dll windows:4 windows x86 arch:x86
9cdddee190d4aab70ce9c46f84f3410b
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
PDB Paths
Imports
kernel32
AllocConsole
AttachConsole
CallNamedPipeA
CancelIo
CancelSynchronousIo
ClearCommBreak
ClearCommError
CloseHandle
CompareStringW
ConnectNamedPipe
CreateFileA
CreateFileW
CreateNamedPipeA
CreatePipe
CreateProcessW
CreateRemoteThread
CreateSymbolicLinkW
CreateTapePartition
CreateThread
DebugBreak
DeleteCriticalSection
DeviceIoControl
DisconnectNamedPipe
DuplicateHandle
EnterCriticalSection
EraseTape
EscapeCommFunction
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FillConsoleOutputAttribute
FillConsoleOutputCharacterW
FindFirstVolumeW
FindNextVolumeW
FindVolumeClose
FlushConsoleInputBuffer
FlushFileBuffers
FlushViewOfFile
FreeConsole
FreeEnvironmentStringsW
FreeLibrary
GetBinaryTypeW
GetCommModemStatus
GetCommState
GetCommandLineW
GetComputerNameExA
GetConsoleCP
GetConsoleCursorInfo
GetConsoleMode
GetConsoleScreenBufferInfo
GetConsoleWindow
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetEnvironmentStringsW
GetEnvironmentVariableA
GetEnvironmentVariableW
GetExitCodeProcess
GetExitCodeThread
GetFileAttributesA
GetFileSize
GetFileSizeEx
GetFileType
GetHandleInformation
GetLastError
GetLocaleInfoA
GetLocaleInfoW
GetLogicalDriveStringsA
GetLogicalDrives
GetMailslotInfo
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExA
GetModuleHandleExW
GetNamedPipeClientProcessId
GetNumberOfConsoleInputEvents
GetOverlappedResult
GetPriorityClass
GetProcAddress
GetProcessHeap
GetProcessWorkingSetSize
GetStartupInfoA
GetStdHandle
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetSystemWindowsDirectoryW
GetSystemWow64DirectoryW
GetTapeParameters
GetTapePosition
GetTapeStatus
GetTempPathW
GetThreadContext
GetThreadId
GetThreadPriority
GetTickCount
GetTimeZoneInformation
GetVolumeNameForVolumeMountPointW
GetVolumePathNamesForVolumeNameW
GlobalAlloc
GlobalLock
GlobalMemoryStatusEx
GlobalSize
GlobalUnlock
HeapAlloc
IdnToAscii
IdnToUnicode
InitializeCriticalSection
IsBadStringPtrA
IsDebuggerPresent
IsProcessInJob
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadLibraryW
LocalFree
LocaleNameToLCID
MapViewOfFile
MapViewOfFileEx
MultiByteToWideChar
OpenProcess
OpenThread
OutputDebugStringA
PeekConsoleInputW
PeekNamedPipe
PrepareTape
PurgeComm
QueryDosDeviceW
QueryInformationJobObject
QueryPerformanceCounter
QueryPerformanceFrequency
QueueUserAPC
RaiseException
ReadConsoleInputW
ReadConsoleOutputW
ReadFile
ReadProcessMemory
ReleaseMutex
ReleaseSemaphore
ResetEvent
ResumeThread
RtlCaptureContext
RtlUnwind
ScrollConsoleScreenBufferA
SetCommBreak
SetCommMask
SetCommState
SetCommTimeouts
SetComputerNameExW
SetConsoleCtrlHandler
SetConsoleCursorInfo
SetConsoleCursorPosition
SetConsoleMode
SetConsoleTextAttribute
SetConsoleTitleW
SetConsoleWindowInfo
SetEnvironmentVariableW
SetErrorMode
SetEvent
SetFilePointer
SetFilePointerEx
SetHandleInformation
SetLastError
SetNamedPipeHandleState
SetPriorityClass
SetProcessWorkingSetSize
SetStdHandle
SetSystemTime
SetTapeParameters
SetTapePosition
SetThreadAffinityMask
SetThreadContext
SetThreadPriority
SetThreadStackGuarantee
Sleep
SuspendThread
SwitchToThread
TerminateProcess
TerminateThread
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TransmitCommChar
UnmapViewOfFile
VirtualAlloc
VirtualFree
VirtualProtect
VirtualProtectEx
VirtualQuery
VirtualQueryEx
WaitCommEvent
WaitForMultipleObjects
WaitForSingleObject
WaitNamedPipeW
WideCharToMultiByte
WriteConsoleOutputW
WriteConsoleW
WriteFile
WriteProcessMemory
WriteTapemark
ntdll
NtAccessCheck
NtAdjustPrivilegesToken
NtAllocateLocallyUniqueId
NtCancelTimer
NtClose
NtCommitTransaction
NtContinue
NtCreateDirectoryObject
NtCreateEvent
NtCreateFile
NtCreateKey
NtCreateMailslotFile
NtCreateMutant
NtCreateSection
NtCreateSemaphore
NtCreateTimer
NtCreateToken
NtCreateTransaction
NtDuplicateToken
NtFlushBuffersFile
NtFsControlFile
NtLockFile
NtLockVirtualMemory
NtMapViewOfSection
NtOpenDirectoryObject
NtOpenEvent
NtOpenFile
NtOpenKey
NtOpenMutant
NtOpenProcessToken
NtOpenSection
NtOpenSemaphore
NtOpenSymbolicLinkObject
NtOpenThreadToken
NtPrivilegeCheck
NtQueryAttributesFile
NtQueryDirectoryFile
NtQueryDirectoryObject
NtQueryEaFile
NtQueryEvent
NtQueryInformationFile
NtQueryInformationProcess
NtQueryInformationThread
NtQueryInformationToken
NtQueryObject
NtQueryQuotaInformationFile
NtQuerySecurityObject
NtQuerySemaphore
NtQuerySymbolicLinkObject
NtQuerySystemInformation
NtQuerySystemTime
NtQueryTimer
NtQueryTimerResolution
NtQueryValueKey
NtQueryVirtualMemory
NtQueryVolumeInformationFile
NtReadFile
NtRollbackTransaction
NtSetEaFile
NtSetEvent
NtSetInformationFile
NtSetInformationThread
NtSetInformationToken
NtSetQuotaInformationFile
NtSetSecurityObject
NtSetTimer
NtSetTimerResolution
NtSetValueKey
NtSetVolumeInformationFile
NtUnlockFile
NtUnlockVirtualMemory
NtUnmapViewOfSection
NtWriteFile
RtlAbsoluteToSelfRelativeSD
RtlAddAccessAllowedAce
RtlAddAccessAllowedAceEx
RtlAddAccessDeniedAceEx
RtlAllocateHeap
RtlAppendUnicodeStringToString
RtlAppendUnicodeToString
RtlCheckRegistryKey
RtlCompareUnicodeString
RtlConvertSidToUnicodeString
RtlCopySid
RtlCopyUnicodeString
RtlCreateAcl
RtlCreateQueryDebugBuffer
RtlCreateSecurityDescriptor
RtlCreateUnicodeStringFromAsciiz
RtlDestroyQueryDebugBuffer
RtlDowncaseUnicodeString
RtlEnterCriticalSection
RtlEqualPrefixSid
RtlEqualSid
RtlEqualUnicodeString
RtlFirstFreeAce
RtlFreeHeap
RtlFreeUnicodeString
RtlGetAce
RtlGetControlSecurityDescriptor
RtlGetCurrentTransaction
RtlGetDaclSecurityDescriptor
RtlGetGroupSecurityDescriptor
RtlGetNtVersionNumbers
RtlGetOwnerSecurityDescriptor
RtlGetVersion
RtlIdentifierAuthoritySid
RtlInitAnsiString
RtlInitUnicodeString
RtlInitializeSid
RtlLeaveCriticalSection
RtlLengthSid
RtlNtStatusToDosError
RtlPrefixUnicodeString
RtlQueryProcessDebugInformation
RtlQueryRegistryValues
RtlSetControlSecurityDescriptor
RtlSetCurrentDirectory_U
RtlSetCurrentTransaction
RtlSetDaclSecurityDescriptor
RtlSetGroupSecurityDescriptor
RtlSetOwnerSecurityDescriptor
RtlSubAuthorityCountSid
RtlSubAuthoritySid
RtlUnicodeStringToAnsiString
RtlUpcaseUnicodeChar
RtlUpcaseUnicodeString
Exports
Exports
GetCommandLineA@0
GetCommandLineW@0
_Exit
__argc
__argv
__argz_add
__argz_add_sep
__argz_append
__argz_count
__argz_create
__argz_create_sep
__argz_delete
__argz_extract
__argz_insert
__argz_next
__argz_replace
__argz_stringify
__assert
__assert_func
__assertfail
__b64_ntop
__b64_pton
__bsd_qsort_r
__check_rhosts_file
__ctype_ptr__
__cxa_atexit
__cxa_finalize
__cygwin_environ
__cygwin_user_data
__dn_comp
__dn_expand
__dn_skipname
__envz_add
__envz_entry
__envz_get
__envz_merge
__envz_remove
__envz_strip
__eprintf
__errno
__f_atan2
__f_atan2f
__f_exp
__f_expf
__f_frexp
__f_frexpf
__f_ldexp
__f_ldexpf
__f_log
__f_log10
__f_log10f
__f_logf
__f_pow
__f_powf
__f_tan
__f_tanf
__fbufsize
__flbf
__fpclassifyd
__fpclassifyf
__fpending
__fpurge
__freadable
__freading
__fsetlocking
__fwritable
__fwriting
__getdelim
__getline
__getpagesize
__getreent
__gnu_basename
__infinity
__isinfd
__isinff
__isnand
__isnanf
__locale_ctype_ptr
__locale_ctype_ptr_l
__locale_mb_cur_max
__main
__mb_cur_max
__mempcpy
__opendir_with_d_ino
__progname
__rcmd_errstr
__res_close
__res_init
__res_mkquery
__res_nclose
__res_ninit
__res_nmkquery
__res_nquery
__res_nquerydomain
__res_nsearch
__res_nsend
__res_query
__res_querydomain
__res_search
__res_send
__res_state
__signbitd
__signbitf
__signgam
__srget
__srget_r
__swbuf
__swbuf_r
__wrap__ZdaPv
__wrap__ZdaPvRKSt9nothrow_t
__wrap__ZdlPv
__wrap__ZdlPvRKSt9nothrow_t
__wrap__Znaj
__wrap__ZnajRKSt9nothrow_t
__wrap__Znwj
__wrap__ZnwjRKSt9nothrow_t
__xdrrec_getrec
__xdrrec_setnonblock
__xpg_sigpause
__xpg_strerror_r
_abort
_abs
_access
_acl
_acl32
_aclcheck
_aclcheck32
_aclfrommode
_aclfrommode32
_aclfrompbits
_aclfrompbits32
_aclfromtext
_aclfromtext32
_aclsort
_aclsort32
_acltomode
_acltomode32
_acltopbits
_acltopbits32
_acltotext
_acltotext32
_acos
_acosf
_acosh
_acoshf
_alarm
_alloca
_alphasort
_asctime
_asctime_r
_asin
_asinf
_asinh
_asinhf
_asprintf
_asprintf_r
_atan
_atan2
_atan2f
_atanf
_atanh
_atanhf
_atexit
_atof
_atoff
_atoi
_atol
_bcmp
_bcopy
_bsearch
_bzero
_cabs
_cabsf
_calloc
_cbrt
_cbrtf
_ceil
_ceilf
_chdir
_check_for_executable
_chmod
_chown
_chown32
_chroot
_clearerr
_clock
_close
_closedir
_copysign
_copysignf
_cos
_cosf
_cosh
_coshf
_creat
_ctime
_ctime_r
_ctype_
_cuserid
_cwait
_daylight
_difftime
_dirfd
_div
_dll_crt0@0
_drand48
_drem
_dremf
_dup
_dup2
_ecvt
_ecvtbuf
_ecvtf
_endgrent
_endmntent
_endpwent
_endutent
_erand48
_erf
_erfc
_erfcf
_erff
_execl
_execle
_execlp
_execv
_execve
_execvp
_exit
_exp
_expf
_expm1
_expm1f
_f_atan2
_f_atan2f
_f_exp
_f_expf
_f_frexp
_f_frexpf
_f_ldexp
_f_ldexpf
_f_llrint
_f_llrintf
_f_llrintl
_f_log
_f_log10
_f_log10f
_f_logf
_f_lrint
_f_lrintf
_f_lrintl
_f_pow
_f_powf
_f_rint
_f_rintf
_f_rintl
_f_tan
_f_tanf
_fabs
_fabsf
_facl
_facl32
_fchdir
_fchmod
_fchown
_fchown32
_fclose
_fcloseall
_fcloseall_r
_fcntl
_fcntl64
_fcvt
_fcvtbuf
_fcvtf
_fdopen
_fdopen64
_fe_dfl_env
_fe_nomask_env
_feinitialise
_feof
_ferror
_fflush
_ffs
_fgetc
_fgetpos
_fgetpos64
_fgets
_fileno
_finite
_finitef
_fiprintf
_floor
_floorf
_fmod
_fmodf
_fnmatch
_fopen
_fopen64
_fork
_fprintf
_fputc
_fputs
_fread
_free
_freopen
_freopen64
_frexp
_frexpf
_fscanf
_fscanf_r
_fseek
_fseeko
_fseeko64
_fsetpos
_fsetpos64
_fstat
_fstat64
_fstatfs
_fsync
_ftell
_ftello
_ftello64
_ftime
_ftok
_ftruncate
_ftruncate64
_fwrite
_gamma
_gamma_r
_gammaf
_gammaf_r
_gcvt
_gcvtf
_get_osfhandle
_getc
_getc_unlocked
_getchar
_getchar_unlocked
_getcwd
_getdomainname
_getdtablesize
_getegid
_getegid32
_getenv
_geteuid
_geteuid32
_getgid
_getgid32
_getgrent
_getgrent32
_getgrgid
_getgrgid32
_getgrnam
_getgrnam32
_getgroups
_getgroups32
_gethostname
_getlogin
_getmntent
_getmode
_getpagesize
_getpass
_getpgrp
_getpid
_getppid
_getpwduid
_getpwent
_getpwnam
_getpwuid
_getpwuid32
_getpwuid_r32
_getrlimit
_getrusage
_gets
_gettimeofday
_getuid
_getuid32
_getutent
_getutid
_getw
_getwd
_gmtime
_gmtime_r
_htonl
_htons
_hypot
_hypotf
_ilogb
_ilogbf
_impure_ptr
_index
_infinity
_infinityf
_initgroups32
_ioctl
_iprintf
_isalnum
_isalpha
_isascii
_isatty
_iscntrl
_isdigit
_isgraph
_isinf
_isinff
_islower
_isnan
_isnanf
_isprint
_ispunct
_isspace
_isupper
_isxdigit
_j0
_j0f
_j1
_j1f
_jn
_jnf
_jrand48
_kill
_labs
_lacl
_lchown
_lchown32
_lcong48
_ldexp
_ldexpf
_ldiv
_lgamma
_lgamma_r
_lgammaf
_lgammaf_r
_link
_localeconv
_localtime
_localtime_r
_log
_log10
_log10f
_log1p
_log1pf
_logb
_logbf
_logf
_longjmp
_lrand48
_lseek
_lseek64
_lstat
_lstat64
_malloc
_matherr
_mblen
_mbstowcs
_mbtowc
_memccpy
_memchr
_memcmp
_memcpy
_memmove
_memset
_mkdir
_mknod
_mknod32
_mkstemp
_mktemp
_mktime
_mmap64
_modf
_modff
_mount
_nan
_nanf
_nanosleep
_nextafter
_nextafterf
_nice
_nl_langinfo
_nrand48
_ntohl
_ntohs
_open
_open64
_openlog
_pathconf
_pclose
_perror
_pipe
_poll
_popen
_pow
_powf
_printf
_pthread_cleanup_pop
_pthread_cleanup_push
_putc
_putc_unlocked
_putchar
_putchar_unlocked
Sections
.text Size: 1.7MB - Virtual size: 1.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
/4 Size: 7KB - Virtual size: 7KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.data Size: 122KB - Virtual size: 122KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 290KB - Virtual size: 289KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.buildid Size: 512B - Virtual size: 53B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 284KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.edata Size: 45KB - Virtual size: 45KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 96KB - Virtual size: 96KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
/19 Size: 32KB - Virtual size: 32KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
/38 Size: 512B - Virtual size: 16B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.cygheap Size: - Virtual size: 2.0MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE