CloudyBootstrapInstaller[.]exe

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General

Target

CloudyBootstrapInstaller.exe
Size

1.8MB
MD5

0a124a3b6c669821c2828de56a018475
SHA1

d8f088826519417ac54154c3eb32d8d82476007c
SHA256

09fc70bd08830e6ca20dad75583dd1454e4acd48521b65f76d48ac8aebd8a9eb
SHA512

c24572f2dc34f60a56b36da9143f55d911cae3fd389248fd9c20caa25ca87fd6b60d361d9469015b9b65d5b358ce6c30119fdec53478338bf52ef3ca20026562
SSDEEP

24576:HawwKusHwEwSDMn6fnbidUSeMITCqgcfyr4Py6K22i+i8rtVs1ZY7jQY71+:XwREDDMkWdHeMxWrP+beY7UY71+

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
CloudyBootstrapInstaller.exe

Files

CloudyBootstrapInstaller.exe
.exe windows:6 windows x86 arch:x86

40ab50289f7ef5fae60801f88d4541fc

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

kernel32

GetACP
GetExitCodeProcess
CloseHandle
LocalFree
SizeofResource
VirtualProtect
QueryPerformanceFrequency
VirtualFree
GetFullPathNameW
GetProcessHeap
ExitProcess
HeapAlloc
GetCPInfoExW
RtlUnwind
GetCPInfo
GetStdHandle
GetModuleHandleW
FreeLibrary
HeapDestroy
ReadFile
CreateProcessW
GetLastError
GetModuleFileNameW
SetLastError
FindResourceW
CreateThread
CompareStringW
LoadLibraryA
ResetEvent
GetVolumeInformationW
GetVersion
GetDriveTypeW
RaiseException
FormatMessageW
SwitchToThread
GetExitCodeThread
GetCurrentThread
LoadLibraryExW
LockResource
GetCurrentThreadId
UnhandledExceptionFilter
VirtualQuery
VirtualQueryEx
Sleep
EnterCriticalSection
SetFilePointer
LoadResource
SuspendThread
GetTickCount
GetFileSize
GetStartupInfoW
GetFileAttributesW
InitializeCriticalSection
GetSystemWindowsDirectoryW
GetThreadPriority
SetThreadPriority
GetCurrentProcess
VirtualAlloc
GetCommandLineW
GetSystemInfo
LeaveCriticalSection
GetProcAddress
ResumeThread
GetVersionExW
VerifyVersionInfoW
HeapCreate
GetWindowsDirectoryW
LCMapStringW
VerSetConditionMask
GetDiskFreeSpaceW
FindFirstFileW
GetUserDefaultUILanguage
lstrlenW
QueryPerformanceCounter
SetEndOfFile
HeapFree
WideCharToMultiByte
FindClose
MultiByteToWideChar
LoadLibraryW
SetEvent
CreateFileW
GetLocaleInfoW
GetSystemDirectoryW
DeleteFileW
GetLocalTime
GetEnvironmentVariableW
WaitForSingleObject
WriteFile
ExitThread
DeleteCriticalSection
TlsGetValue
GetDateFormatW
SetErrorMode
IsValidLocale
TlsSetValue
CreateDirectoryW
GetSystemDefaultUILanguage
EnumCalendarInfoW
LocalAlloc
GetUserDefaultLangID
RemoveDirectoryW
CreateEventW
SetThreadLocale
GetThreadLocale

comctl32

InitCommonControls

user32

CreateWindowExW
TranslateMessage
CharLowerBuffW
CallWindowProcW
CharUpperW
PeekMessageW
GetSystemMetrics
SetWindowLongW
MessageBoxW
DestroyWindow
CharUpperBuffW
CharNextW
MsgWaitForMultipleObjects
LoadStringW
ExitWindowsEx
DispatchMessageW

oleaut32

SysAllocStringLen
SafeArrayPtrOfIndex
VariantCopy
SafeArrayGetLBound
SafeArrayGetUBound
VariantInit
VariantClear
SysFreeString
SysReAllocStringLen
VariantChangeType
SafeArrayCreate

advapi32

ConvertStringSecurityDescriptorToSecurityDescriptorW
OpenThreadToken
AdjustTokenPrivileges
LookupPrivilegeValueW
RegOpenKeyExW
OpenProcessToken
FreeSid
AllocateAndInitializeSid
EqualSid
RegQueryValueExW
GetTokenInformation
ConvertSidToStringSidW
RegCloseKey

Exports

Exports

__dbk_fcall_wrapper
dbkFCallWrapperAddr

Sections

.text
Size: 662KB - Virtual size: 661KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 28KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didata
Size: 512B - Virtual size: 420B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.edata
Size: 512B - Virtual size: 113B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: - Virtual size: 24B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 512B - Virtual size: 93B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 68KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 68KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

40ab50289f7ef5fae60801f88d4541fc

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

comctl32

user32

oleaut32

advapi32

Exports

Exports

Sections

.text Size: 662KB - Virtual size: 661KB

.itext Size: 7KB - Virtual size: 6KB

.data Size: 14KB - Virtual size: 14KB

.bss Size: - Virtual size: 28KB

.idata Size: 4KB - Virtual size: 3KB

.didata Size: 512B - Virtual size: 420B

.edata Size: 512B - Virtual size: 113B

.tls Size: - Virtual size: 24B

.rdata Size: 512B - Virtual size: 93B

.reloc Size: 68KB - Virtual size: 67KB

.rsrc Size: 68KB - Virtual size: 68KB

.text
Size: 662KB - Virtual size: 661KB

.itext
Size: 7KB - Virtual size: 6KB

.data
Size: 14KB - Virtual size: 14KB

.bss
Size: - Virtual size: 28KB

.idata
Size: 4KB - Virtual size: 3KB

.didata
Size: 512B - Virtual size: 420B

.edata
Size: 512B - Virtual size: 113B

.tls
Size: - Virtual size: 24B

.rdata
Size: 512B - Virtual size: 93B

.reloc
Size: 68KB - Virtual size: 67KB

.rsrc
Size: 68KB - Virtual size: 68KB