VastGen[.]exe | Triage

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General

Target

VastGen.exe
Size

35.7MB
MD5

6d1270309900c388ca00051255d6151f
SHA1

4da4921ef93549ab7ef521ee9d9711e872ef6156
SHA256

544d16c97c7860f1ff74d830619e0805543399de3c2dd8da9c7df6f55fe6afa2
SHA512

5bebf973273536153e8456006268f0dcac93159ce81884a84482f705b1374e240619bc27a9dd2f77a529b0e93baddce5a9afd364e4e393814d1e62e52f790d0a
SSDEEP

786432:ZfcFuQiE/mZm2sifwU8OpHqQb9V1JmVU/F10CvRzbImy9NcO:BkNuZmBiEOTbTvmm/h8my9N

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
VastGen.exe

Files

VastGen.exe
.exe windows:6 windows x64 arch:x64

54bbe3c1b49cb3081819f968b3e7218e

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

shell32

SHFileOperationW
SHGetFolderPathW

kernel32

DeleteCriticalSection
WriteConsoleW
CreateDirectoryW
SetConsoleCtrlHandler
GetCommandLineW
WriteFile
TerminateProcess
GetModuleFileNameW
GetTempPathW
FindResourceA
WaitForSingleObject
CreateFileW
GetFileAttributesW
Sleep
GetLastError
LockResource
CloseHandle
LoadResource
GetProcAddress
SetEnvironmentVariableA
GetCurrentProcessId
CreateProcessW
WideCharToMultiByte
GetSystemTimeAsFileTime
FormatMessageA
GetExitCodeProcess
HeapReAlloc
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentThreadId
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
EncodePointer
RaiseException
RtlPcToFileHeader
ExitProcess
GetModuleHandleExW
GetCommandLineA
GetStdHandle
HeapAlloc
MultiByteToWideChar
HeapFree
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
CompareStringW
LCMapStringW
GetFileType
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
GetStringTypeW
GetProcessHeap
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode
GetFileSizeEx
SetFilePointerEx
HeapSize

Sections

.text
Size: 128KB - Virtual size: 128KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 48KB - Virtual size: 48KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 35.5MB - Virtual size: 35.5MB

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

54bbe3c1b49cb3081819f968b3e7218e

Headers

DLL Characteristics

File Characteristics

Imports

shell32

kernel32

Sections

.text Size: 128KB - Virtual size: 128KB

.rdata Size: 48KB - Virtual size: 48KB

.data Size: 3KB - Virtual size: 67KB

.pdata Size: 6KB - Virtual size: 5KB

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 35.5MB - Virtual size: 35.5MB

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

.text
Size: 128KB - Virtual size: 128KB

.rdata
Size: 48KB - Virtual size: 48KB

.data
Size: 3KB - Virtual size: 67KB

.pdata
Size: 6KB - Virtual size: 5KB

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 35.5MB - Virtual size: 35.5MB

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