Static task
static1
Behavioral task
behavioral1
Sample
cn_flash_installer.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
cn_flash_installer.exe
Resource
win10v2004-20230824-en
General
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Target
cn_flash_installer.exe
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Size
9.8MB
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MD5
8b9436c358a1d7f0ca61eca81b5025f7
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SHA1
7db78548aae9e4872b06ee9e79c29553947db3d6
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SHA256
39f92aed5dfa2cd20ae7df11e16acce9bb2e80c7e6539bc81f352d42ab578eb6
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SHA512
c1de24c559797814cd15ccf5ad1433579eae0fd88e7ea4320dd8aaf42cc284496dc59c43d412013d9d4a2ca1d405260ecafe395fa9dd38d7253413ab1ef68933
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SSDEEP
196608:ugEl40+bWzjxD3Dm5l3OZCTFhVl4dQ63Tq2N+SHk:k4dWzjq4ZCTODZ+S
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource cn_flash_installer.exe
Files
-
cn_flash_installer.exe.exe windows x64
3bd85f4f5fd76a2c231e0ae26c5a08e9
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
SizeofResource
FindResourceA
GetTempPathA
LockResource
LoadResource
CreateProcessA
SetEndOfFile
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
GetCurrentProcess
TerminateProcess
RtlUnwindEx
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
RaiseException
GetStdHandle
WriteFile
GetModuleFileNameW
ExitProcess
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
HeapFree
CloseHandle
GetConsoleCP
GetConsoleMode
GetFileSizeEx
SetFilePointerEx
HeapAlloc
GetFileType
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
MultiByteToWideChar
WideCharToMultiByte
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
GetStringTypeW
CompareStringW
LCMapStringW
GetProcessHeap
FlushFileBuffers
ReadFile
ReadConsoleW
CreateFileW
HeapSize
HeapReAlloc
WriteConsoleW
Sections
.text Size: 76KB - Virtual size: 76KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 40KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 148B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 9.6MB - Virtual size: 9.6MB
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