Fallen_Checker[.]exe

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General

Target
Fallen_Checker.exe
Size 18.0MB
Sample260816-tbhsladr21
SHA256 56942d244c0cb10fb65ed0138c724d71f0225abb0d93d0c993f90f2de3a145a2
MD5 39de29499a5be3311b69e4ddd9173cb9
SHA1 e57506b894d2b6c541bc36067a30f71eefb4268c
SHA512 2fa32cfa208bc0fdcf703adb1f6165d4aef82cb3433fba535affe4a874912156e64d19cf1413e5fe3bbb12ca951a26b04a1bbb353d386a006f23c6cdc4e46f4c
SSDEEP 393216:7/DJ2H7uAzCm496uhHXNRTNT35YJbSfX8auupD7Dv4:7/1iQRHXNpNzPEu/v
TLSH
T1A61733EFD51330ECC71B12789DEA35A37511F5340CAB6AEE28C5E2916B9BDA44CB44C2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Fallen_Checker.exe

File Explorer

Fallen_Checker.exe

.exe 18.0MB

Fallen_Checker.exe

IMPHASH cff1104caaecd55871658c954a9d6385
SHA256 56942d244c0cb10fb65ed0138c724d71f0225abb0d93d0c993f90f2de3a145a2
MD5 39de29499a5be3311b69e4ddd9173cb9
SHA1 e57506b894d2b6c541bc36067a30f71eefb4268c
SHA512 2fa32cfa208bc0fdcf703adb1f6165d4aef82cb3433fba535affe4a874912156e64d19cf1413e5fe3bbb12ca951a26b04a1bbb353d386a006f23c6cdc4e46f4c
SSDEEP 393216:7/DJ2H7uAzCm496uhHXNRTNT35YJbSfX8auupD7Dv4:7/1iQRHXNpNzPEu/v
TLSH
T1A61733EFD51330ECC71B12789DEA35A37511F5340CAB6AEE28C5E2916B9BDA44CB44C2
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

4119

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED

PDB paths

kernel32

AddDllDirectory CloseHandle CopyFileW CreateDirectoryW CreateFileMappingW CreateFileW CreateProcessW DeleteCriticalSection DeleteFileW EnterCriticalSection FormatMessageA FreeLibrary GetCommandLineW GetCurrentProcessId GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileSize GetFullPathNameW GetLastError GetModuleFileNameW GetModuleHandleA GetModuleHandleExA GetProcAddress GetShortPathNameW GetStartupInfoW GetStdHandle GetSystemTimeAsFileTime GetTempPathW InitializeCriticalSection IsDBCSLeadByteEx K32GetModuleFileNameExW LeaveCriticalSection LoadLibraryA LoadLibraryExW MapViewOfFile MultiByteToWideChar OpenProcess QueryPerformanceCounter ReadFile SetConsoleCtrlHandler SetDllDirectoryW SetEnvironmentVariableW SetUnhandledExceptionFilter Sleep TerminateProcess TlsGetValue UnmapViewOfFile VirtualProtect VirtualQuery WaitForSingleObject WideCharToMultiByte WriteFile

msvcrt

__C_specific_handler ___lc_codepage_func ___mb_cur_max_func __argc __iob_func __set_app_type __setusermatherr __wargv __wgetmainargs __winitenv _amsg_exit _cexit _commode _errno _fmode _initterm _lock _unlock _wcmdln _wcsicmp _wcsdup _wrename abort atexit calloc exit fprintf fputc fputwc free fwprintf iswctype localeconv malloc mbstowcs memcpy memmove memset puts signal strerror strlen strncmp strncpy vfprintf wcschr wcscmp wcslen wcsncmp wcstoul

shell32

CommandLineToArgvW SHFileOperationW SHGetFolderPathW

Name

.text

Size

162KB

Virtual Size

162KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

512B

Virtual Size

384B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

17.6MB

Virtual Size

17.6MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.eh_fram

Size

512B

Virtual Size

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

.xdata

Size

5KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

181KB

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

4KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

512B

Virtual Size

16B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

200KB

Virtual Size

200KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

512B

Virtual Size

156B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Fallen_Checker.exe

kernel32

msvcrt

shell32

generic