clean-dropper[.]exe

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General

Target

clean-dropper.exe
Size

545KB
MD5

66f1ca17c0b65e7de10aa97fe026dbe0
SHA1

eaf15daac21a08b6b87108193f1ab5d4980d762a
SHA256

6f471d02359fde37785d180fafd6c734a155a4382a09c72992bba8a662e96ba3
SHA512

529fdb9d0e52a4970ab08469f554a8f26016378787fb61a3152c9eb3c5a55ee0152b6fe627a77d14457af7ae9a3df4dbdc8af32a2019a9d4b6324ae8133f6455
SSDEEP

12288:6B0QLDEaj9P0WhdSz2soY6YCBItSE10a/:+0QLDEa55dU2syBIP0a/

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
clean-dropper.exe

Files

clean-dropper.exe
.exe windows:6 windows x64 arch:x64

473da3e0d61db49060dce5b003a83da8

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

ReleaseSRWLockExclusive
AcquireSRWLockExclusive
SetLastError
FormatMessageW
QueryPerformanceCounter
GetTickCount
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
QueryPerformanceFrequency
GetSystemDirectoryA
FreeLibrary
GetModuleHandleA
GetProcAddress
LoadLibraryA
WideCharToMultiByte
MoveFileExA
WaitForSingleObjectEx
GetEnvironmentVariableA
GetCurrentProcessId
GetStdHandle
GlobalMemoryStatusEx
ReadFile
PeekNamedPipe
WaitForMultipleObjects
SleepEx
VerSetConditionMask
VerifyVersionInfoW
CreateFileA
GetFileSizeEx
GetSystemTimeAsFileTime
GetProcessHeap
GetThreadContext
K32EnumProcesses
HeapAlloc
DeleteProcThreadAttributeList
GetSystemInfo
CloseHandle
Process32FirstW
lstrcpyA
GetCurrentThread
Process32NextW
GetCurrentThreadId
GetModuleHandleW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
SleepConditionVariableSRW
WakeAllConditionVariable
CreateProcessA
UpdateProcThreadAttribute
GetLastError
K32GetModuleFileNameExA
GetTickCount64
Sleep
MultiByteToWideChar
CreateToolhelp32Snapshot
SetFileAttributesW
OpenProcess
GetFileAttributesW
lstrlenA
InitializeProcThreadAttributeList
GetCurrentProcess
HeapFree
GetFileType
GetModuleFileNameA
InitializeSListHead

advapi32

RegCloseKey
CryptReleaseContext
CryptGetHashParam
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
CryptEncrypt
CryptAcquireContextA

shell32

SHGetFolderPathW

msvcp140

?get@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAHXZ
_Cnd_do_broadcast_at_thread_exit
?_Xlength_error@std@@YAXPEBD@Z
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Throw_Cpp_error@std@@YAXH@Z

shlwapi

PathFindFileNameA

normaliz

IdnToUnicode
IdnToAscii

ws2_32

WSACloseEvent
accept
WSACreateEvent
send
WSAEventSelect
bind
WSAWaitForMultipleEvents
closesocket
WSAEnumNetworkEvents
getsockopt
connect
gethostname
ioctlsocket
getpeername
sendto
recvfrom
freeaddrinfo
getaddrinfo
recv
listen
htonl
WSAResetEvent
getsockname
select
__WSAFDIsSet
socket
htons
WSAIoctl
setsockopt
WSACleanup
WSAStartup
WSASetLastError
ntohs
WSAGetLastError

wldap32

ord30
ord200
ord301
ord217
ord46
ord211
ord60
ord79
ord45
ord50
ord41
ord22
ord26
ord27
ord35
ord33
ord32
ord143

crypt32

CertGetNameStringA
CertGetCertificateChain
CertFreeCertificateChain
CertCreateCertificateChainEngine
CryptQueryObject
CertFindExtension
CertAddCertificateContextToStore
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CertFreeCertificateChainEngine
CertOpenStore
CertCloseStore

bcrypt

BCryptGenRandom

vcruntime140_1

__CxxFrameHandler4

vcruntime140

memchr
strrchr
strchr
memset
__current_exception
memmove
__std_exception_copy
__std_exception_destroy
__current_exception_context
memcmp
__C_specific_handler
strstr
_CxxThrowException
memcpy

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

_register_thread_local_exe_atexit_callback
_c_exit
__p___argv
_errno
terminate
__p___argc
__sys_nerr
_exit
__sys_errlist
exit
_initterm_e
_initterm
_invalid_parameter_noinfo_noreturn
_get_initial_narrow_environment
_beginthreadex
_set_app_type
_configure_narrow_argv
_initialize_narrow_environment
_initialize_onexit_table
_register_onexit_function
_crt_atexit
strerror
_cexit
_seh_filter_exe

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

calloc
malloc
_callnewh
free
_set_new_mode
realloc

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

_fseeki64
_lseeki64
fwrite
fgets
_open
_set_fmode
fflush
__stdio_common_vsprintf
fputc
__stdio_common_vfprintf
__stdio_common_vsscanf
fseek
__p__commode
fputs
__acrt_iob_func
_read
_write
fclose
_fileno
_close
ftell
feof
fopen
fread

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

isdigit
strpbrk
_wcsicmp
_strdup
strncmp
strcspn
strspn
strcmp
tolower
_strlwr
strncpy

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

strtol
strtoul
atoi
wcstombs
strtoll

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

qsort

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

_gmtime64
strftime
_time64

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

_access
_fstat64
_unlink
_stat64

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

__setusermatherr
_fdopen

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

_configthreadlocale

Sections

.text
Size: 418KB - Virtual size: 418KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 100KB - Virtual size: 100KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 20KB - Virtual size: 19KB

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: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

473da3e0d61db49060dce5b003a83da8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

shell32

msvcp140

shlwapi

normaliz

ws2_32

wldap32

crypt32

bcrypt

vcruntime140_1

vcruntime140

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

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

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

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

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

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

Sections

.text Size: 418KB - Virtual size: 418KB

.rdata Size: 100KB - Virtual size: 100KB

.data Size: 2KB - Virtual size: 7KB

.pdata Size: 20KB - Virtual size: 19KB

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

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 418KB - Virtual size: 418KB

.rdata
Size: 100KB - Virtual size: 100KB

.data
Size: 2KB - Virtual size: 7KB

.pdata
Size: 20KB - Virtual size: 19KB

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

.reloc
Size: 2KB - Virtual size: 1KB