Static task
static1
Behavioral task
behavioral1
Sample
Kurome.Builder.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
Kurome.Builder.exe
Resource
win10v2004-20240802-en
General
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Target
Kurome.Builder.exe
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Size
287KB
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MD5
34c4abcadb1ffcb017022c4a685a40d3
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SHA1
0e1fe2ba9f8ebc459dc87bca1d01123e196ecc6a
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SHA256
4e16b5350de2dcc94629fa074f129e13ed0156d6b572acbdfa966abfa10873e0
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SHA512
00f514de91defd7d3e81359ca054f32773a0ecd1b3e4cf11266a4bea291b592ba69b7f5d86d27b3b90bdfd9ce9cf5230ac8633364f126cc0a9401116d53ab321
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SSDEEP
6144:FzEwAwhyr+JEzJJoqqq0/NMHvqPnzMEFubI00zX:tEwAwh6+aJJoqqq0/NGoUbZ+X
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Kurome.Builder.exe
Files
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Kurome.Builder.exe.exe windows:6 windows x86 arch:x86
204f8acbceac04eec436de56f594c55b
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
MultiByteToWideChar
LoadLibraryExA
CreateFileW
CloseHandle
WideCharToMultiByte
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
EncodePointer
DecodePointer
LCMapStringEx
GetStringTypeW
GetCPInfo
GetCurrentThreadId
IsProcessorFeaturePresent
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
GetModuleHandleW
RaiseException
GetCurrentProcess
TerminateProcess
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
InitializeSListHead
GetLastError
HeapAlloc
HeapFree
GetProcessHeap
VirtualQuery
FreeLibrary
GetProcAddress
RtlUnwind
GetModuleFileNameW
LoadLibraryExW
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetCommandLineA
GetCommandLineW
CompareStringW
LCMapStringW
GetLocaleInfoW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
GetFileType
HeapReAlloc
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
SetFilePointerEx
HeapSize
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
WriteConsoleW
version
VerQueryValueW
Sections
.text Size: 223KB - Virtual size: 223KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 46KB - Virtual size: 46KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.msvcjmc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 912B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 9KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ