Blink[.]exe | Triage™

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General

Target
Blink.exe
Size 22.3MB
Sample260809-rssm1ssxew
SHA256 eec2b5eccac6de2acca7fb20243772bf2e57b1a88cb67b9c9bbdd75d939c98b1
MD5 a9bee5d1438e514652df37d68c312db2
SHA1 5e006336b8c00cda24e090a9ab21797d74b805ae
SHA512 96a48abd1c57446d627fae2d20534f44c1f940030e805630752c8445e195ecda485bdb47d64044b5df3db113523ea71ab0a92ca3c2c41b0d835d5ad0b8ec6de6
SSDEEP 393216:0roxPOPYCixcJ5QC3sf8aPT1x6x3XqYw/GhP+xu9gTkqTdbJmStPHe6vm5cvwBTV:0roxPOPYCi6JautarT69K/GhPb9AVTdi
TLSH
T1C437338FC060DA89EF2283730247F654A664D490477B88EF06A6D9746E35D8333F6E5B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Blink.exe

File Explorer

Blink.exe

.exe 22.3MB

Blink.exe

IMPHASH d1ca302ca1d656940889f8c04579bc8c
SHA256 eec2b5eccac6de2acca7fb20243772bf2e57b1a88cb67b9c9bbdd75d939c98b1
MD5 a9bee5d1438e514652df37d68c312db2
SHA1 5e006336b8c00cda24e090a9ab21797d74b805ae
SHA512 96a48abd1c57446d627fae2d20534f44c1f940030e805630752c8445e195ecda485bdb47d64044b5df3db113523ea71ab0a92ca3c2c41b0d835d5ad0b8ec6de6
SSDEEP 393216:0roxPOPYCixcJ5QC3sf8aPT1x6x3XqYw/GhP+xu9gTkqTdbJmStPHe6vm5cvwBTV:0roxPOPYCi6JautarT69K/GhPb9AVTdi
TLSH
T1C437338FC060DA89EF2283730247F654A664D490477B88EF06A6D9746E35D8333F6E5B
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

86048

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

api-ms-win-crt-convert-l1-1-0

mbstowcs wcstoul

api-ms-win-crt-filesystem-l1-1-0

_wrename

api-ms-win-crt-heap-l1-1-0

_set_new_mode calloc free malloc

api-ms-win-crt-private-l1-1-0

__C_specific_handler wcschr

api-ms-win-crt-runtime-l1-1-0

__p___argc __p___wargv __p__wcmdln _cexit _configure_wide_argv _crt_atexit _errno _exit _initialize_wide_environment _initterm _initterm_e _set_app_type _set_invalid_parameter_handler abort exit signal

api-ms-win-crt-stdio-l1-1-0

__acrt_iob_func __p__commode __p__fmode __stdio_common_vfprintf __stdio_common_vsprintf __stdio_common_vswprintf fwrite puts

api-ms-win-crt-string-l1-1-0

_wcsdup _wcsicmp iswctype strcat strcpy strncpy wcscmp wcslen wcsncmp

kernel32

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

shell32

CommandLineToArgvW SHFileOperationW SHGetFolderPathW

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-environment-l1-1-0

__p__wenviron

Name

.text

Size

130KB

Virtual Size

129KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

22.1MB

Virtual Size

22.1MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

512B

Virtual Size

178KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

3KB

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

27KB

Virtual Size

26KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

512B

Virtual Size

140B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Blink.exe

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

kernel32

shell32

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-environment-l1-1-0

generic