FallenStep[.]exe | Triage™

General

Target
FallenStep.exe
Size 863KB
Sample261113-xyamaaz13m
SHA256 c93668106edf6a9111ac2d088cd6569a3714d2711acedd01fdd1e1131738223a
MD5 1e05bd9c3af63e83ce1fdfcd67b95096
SHA1 117429ded19046a97e79163fce68ec3991cbf0f4
SHA512 6bc90058db72453819df7ca85de7fda68447ba4de2dbd962f3dd4bb32f0cccb5e75dd1f33834be6d7b4e3f8b29e4ec801c08a53b814a3d35247a1028242e3806
SSDEEP 24576:YV7AC3Ldle354dQp2IHE2Ffsa5K/qEE+aEN:YVdLdCHEAK/VRaE
TLSH
T19315129B73A634F8D6B7967849E20286E7377C3903114BDB078807653F636D09E39BA1
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
FallenStep.exe

File Explorer

FallenStep.exe

.exe 863KB

FallenStep.exe

IMPHASH 49ad99e36ebc214c96d85becf8b57bb2
SHA256 c93668106edf6a9111ac2d088cd6569a3714d2711acedd01fdd1e1131738223a
MD5 1e05bd9c3af63e83ce1fdfcd67b95096
SHA1 117429ded19046a97e79163fce68ec3991cbf0f4
SHA512 6bc90058db72453819df7ca85de7fda68447ba4de2dbd962f3dd4bb32f0cccb5e75dd1f33834be6d7b4e3f8b29e4ec801c08a53b814a3d35247a1028242e3806
SSDEEP 24576:YV7AC3Ldle354dQp2IHE2Ffsa5K/qEE+aEN:YVdLdCHEAK/VRaE
TLSH
T19315129B73A634F8D6B7967849E20286E7377C3903114BDB078807653F636D09E39BA1
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

6

Entry point

10448

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

PDB paths

kernel32

GetCommandLineW SetEnvironmentVariableW CreateFileW DeleteFileW GetFileSize ReadFile WriteFile GetTempPathW IsDebuggerPresent CloseHandle WaitForSingleObject GetCurrentProcessId GetExitCodeProcess GetCurrentThreadId CreateProcessW GetTickCount64 GetModuleFileNameW WriteConsoleW GetConsoleMode QueryPerformanceCounter GetSystemTimeAsFileTime InitializeSListHead SetUnhandledExceptionFilter GetStartupInfoW GetModuleHandleW RtlPcToFileHeader RaiseException RtlUnwindEx GetLastError SetLastError FlsAlloc FlsGetValue FlsSetValue FlsFree EnterCriticalSection LeaveCriticalSection InitializeCriticalSectionEx DeleteCriticalSection RtlLookupFunctionEntry EncodePointer GetStdHandle GetCurrentProcess ExitProcess TerminateProcess FreeLibrary GetModuleHandleExW GetProcAddress IsProcessorFeaturePresent RtlCaptureContext RtlVirtualUnwind UnhandledExceptionFilter HeapFree HeapAlloc GetFileType FindClose FindFirstFileExW FindNextFileW IsValidCodePage GetACP GetOEMCP GetCPInfo GetCommandLineA MultiByteToWideChar WideCharToMultiByte GetEnvironmentStringsW FreeEnvironmentStringsW SetStdHandle GetStringTypeW VirtualProtect LoadLibraryExW LCMapStringW GetProcessHeap SetFilePointerEx HeapSize HeapReAlloc FlushFileBuffers GetConsoleOutputCP

user32

MessageBoxW

Name

.text

Size

83KB

Virtual Size

82KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

44KB

Virtual Size

43KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

5KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

150KB

Virtual Size

149KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

FallenStep.exe

kernel32

user32

generic