clean-dropper[.]exe

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General

Target

clean-dropper.exe
Size

556KB
MD5

07eddea3801beb1c220178bbf2298d87
SHA1

a9968492f7bbdb4a5784a4b8ba3115f112f4d0e1
SHA256

bd52331c6bc2481a0814e55ac96d0d6cf6318b1cc6c414965a58e70598f7e893
SHA512

1eb86bff88431dd2a07aa5b11f6dd70dd4b43250957afac92408babccff069f112673158637883a6d26142927fc86a1dd7f61501daad87d670657a904abda85f
SSDEEP

12288:+t/bLHtRr5jiCsl/0gaG7XGbH3OCI34waVg:i/XHtRr5ilsgasiH3zMph

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

ac943704072c871264a5fd995f6e15c9

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
Sleep
MultiByteToWideChar
CreateToolhelp32Snapshot
SetFileAttributesW
OpenProcess
GetFileAttributesW
lstrlenA
InitializeProcThreadAttributeList
GetCurrentProcess
HeapFree
GetModuleFileNameA
GetFileType
CreateDirectoryW
InitializeSListHead

advapi32

RegCloseKey
CryptReleaseContext
CryptGetHashParam
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
CryptEncrypt
CryptAcquireContextA

shell32

SHGetFolderPathW

ole32

CoInitialize
CoUninitialize
CoCreateInstance

msvcp140

_Cnd_do_broadcast_at_thread_exit
?_Xlength_error@std@@YAXPEBD@Z
?_Throw_Cpp_error@std@@YAXH@Z

shlwapi

PathFindFileNameA

normaliz

IdnToUnicode
IdnToAscii

ws2_32

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

wldap32

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

crypt32

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

bcrypt

BCryptGenRandom

vcruntime140_1

__CxxFrameHandler4

vcruntime140

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

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

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

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

malloc
_callnewh
_set_new_mode
free
realloc
calloc

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

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

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

_strlwr
_strdup
tolower
strncpy
strcspn
strncmp
strcmp
strspn
strpbrk
_wcsicmp
isdigit

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

atoi
strtoul
strtoll
wcstombs
strtol

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

qsort

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

strftime
_gmtime64
_time64

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

_stat64
_fstat64
_unlink
_access

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

__setusermatherr
_fdopen

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

_configthreadlocale

Sections

.text
Size: 428KB - Virtual size: 427KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 102KB - Virtual size: 101KB

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

ac943704072c871264a5fd995f6e15c9

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

shell32

ole32

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: 428KB - Virtual size: 427KB

.rdata Size: 102KB - Virtual size: 101KB

.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: 428KB - Virtual size: 427KB

.rdata
Size: 102KB - Virtual size: 101KB

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

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

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

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