Static task
static1
Behavioral task
behavioral1
Sample
impresa.exe
Resource
win7-20230831-en
General
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Target
impresa.bin.zip
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Size
129KB
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MD5
5759f1a4b15ddbf2cf2b9eac9290be3d
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SHA1
8a9bb78ce11922dc7409a0aa550ff30614bd4d70
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SHA256
c3a5b4705df5c54f40ada636fdbeb4a8d1bba89931e01b6b7d8378deba6a2974
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SHA512
0a94c10267c881ef695069faba8e4ec3674774dd1a0e94e6a3c615bea6c40b9404dd2591e191445f8a30c8eeede154731d09a5b27e80196eb78018a86ba92a0d
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SSDEEP
3072:kevug696vQ0vW3VN0v4ShHs2YRp40hU8z4N:XyovQ0O3VNV6KT40Vs
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource unpack001/impresa.bin
Files
-
impresa.bin.zip.zip
Password: infected
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impresa.bin.exe windows:5 windows x86
43c856276c896899101e7feab79916ce
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetComputerNameA
GetTempFileNameW
GetModuleHandleExA
GetLocaleInfoA
CommConfigDialogA
FindResourceExW
FindResourceW
DeleteVolumeMountPointA
OpenJobObjectA
ReadConsoleA
InterlockedDecrement
SetDefaultCommConfigW
QueryPerformanceCounter
GetEnvironmentStringsW
InterlockedCompareExchange
WriteConsoleInputA
OpenSemaphoreA
CreateHardLinkA
FreeEnvironmentStringsA
SetTapeParameters
SetThreadUILanguage
FindNextVolumeMountPointA
GetConsoleAliasesA
GetConsoleAliasesLengthA
ConvertFiberToThread
ReadConsoleW
GetCompressedFileSizeW
GetConsoleAliasExesW
WaitNamedPipeW
WriteFile
EnumTimeFormatsW
GetCommandLineA
GetDriveTypeA
GetVolumePathNameW
GetEnvironmentStrings
GetConsoleCP
GlobalAlloc
LoadLibraryW
GetConsoleMode
ReadConsoleInputA
GetCalendarInfoW
SetConsoleCP
GetCommandLineW
EnumSystemCodePagesA
SetSystemPowerState
IsDBCSLeadByte
GetStartupInfoW
CreateMailslotW
GetShortPathNameA
GetNamedPipeHandleStateW
InterlockedExchange
GetLastError
SetLastError
ReadConsoleOutputCharacterA
PeekConsoleInputW
SetVolumeLabelW
RemoveDirectoryA
CopyFileA
EnumSystemCodePagesW
FreeUserPhysicalPages
SetComputerNameA
FindClose
GetAtomNameA
SetCalendarInfoW
MoveFileA
SetConsoleCtrlHandler
AddAtomA
HeapWalk
SetCommMask
GetPrivateProfileSectionNamesA
GetOEMCP
FindNextFileA
_lread
GetModuleHandleA
GetStringTypeW
VirtualProtect
EnumDateFormatsW
PeekConsoleInputA
FindFirstVolumeA
GetWindowsDirectoryW
DeleteFileW
WriteConsoleW
FlushFileBuffers
SetStdHandle
GetFileAttributesA
GetVolumeNameForVolumeMountPointA
SetFilePointer
HeapFree
HeapAlloc
GetProcAddress
GetModuleHandleW
ExitProcess
DecodePointer
DeleteFileA
WideCharToMultiByte
HeapReAlloc
HeapSetInformation
RaiseException
IsProcessorFeaturePresent
HeapCreate
GetStdHandle
GetModuleFileNameW
EncodePointer
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TerminateProcess
GetCurrentProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
InterlockedIncrement
GetCurrentThreadId
GetCPInfo
GetACP
IsValidCodePage
SetHandleCount
GetFileType
CloseHandle
FreeEnvironmentStringsW
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
Sleep
HeapSize
RtlUnwind
LCMapStringW
MultiByteToWideChar
CreateFileW
user32
CharUpperA
CharUpperBuffA
gdi32
GetTextFaceA
winhttp
WinHttpWriteData
Sections
.text Size: 218KB - Virtual size: 218KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 15KB - Virtual size: 30.2MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.vizuso Size: 1024B - Virtual size: 1024B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.duc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 56KB - Virtual size: 55KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ