chrome_update_old[.]exe

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General

Target
chrome_update_old.exe
Size 3.6MB
Sample260528-aleddady8w
SHA256 6d2124b2ee39ac19b8cf52a1f214c3c1108414987b1428d1dbd892b4dca7f7ca
MD5 a221c92dff41227da5c2851bfb64f723
SHA1 98063fe51e7d8277ca7bb908146b467a87670031
SHA512 3e37dbaa3e089cb3b96d9314015b8458d53b67b7c77f975560313005c3dcff9564d25514c86f64a0d5cade040e5e2cfefadaf8c326ed279de881be20de4f4bb8
SSDEEP 98304:YB7lkucFDpe/G9fCTY/SnAsIzdjOlvdfshuJtynPBNnbrUc:YBFqph9f+qSnpmOllfshuJwnXnMc
TLSH
T12806335763A834D9E52E8232C2E31D79EB76BC352182CBDF817552169F676C0CC389B2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
chrome_update_old.exe

File Explorer

chrome_update_old.exe

.exe 3.6MB

chrome_update_old.exe

IMPHASH 009883bcd90bc72fe04a42dec52ab186
SHA256 6d2124b2ee39ac19b8cf52a1f214c3c1108414987b1428d1dbd892b4dca7f7ca
MD5 a221c92dff41227da5c2851bfb64f723
SHA1 98063fe51e7d8277ca7bb908146b467a87670031
SHA512 3e37dbaa3e089cb3b96d9314015b8458d53b67b7c77f975560313005c3dcff9564d25514c86f64a0d5cade040e5e2cfefadaf8c326ed279de881be20de4f4bb8
SSDEEP 98304:YB7lkucFDpe/G9fCTY/SnAsIzdjOlvdfshuJtynPBNnbrUc:YBFqph9f+qSnpmOllfshuJwnXnMc
TLSH
T12806335763A834D9E52E8232C2E31D79EB76BC352182CBDF817552169F676C0CC389B2
MD5 SHA1 SHA512 SSDEEP TLSH

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

7040

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

bcrypt

BCryptCloseAlgorithmProvider BCryptSetProperty BCryptGenerateSymmetricKey BCryptDecrypt BCryptOpenAlgorithmProvider BCryptDestroyKey

ole32

CoUninitialize CoInitializeEx

oleaut32

SafeArrayCreate SafeArrayDestroy SafeArrayAccessData SafeArrayUnaccessData SafeArrayPutElement VariantClear VariantInit SafeArrayCreateVector

mscoree

CLRCreateInstance

user32

GetCursorPos

kernel32

EncodePointer WriteConsoleW CloseHandle CreateFileW SetFilePointerEx GetConsoleMode GetConsoleOutputCP FlushFileBuffers HeapReAlloc HeapSize GetProcessHeap LCMapStringW LoadLibraryExW Sleep GetCurrentProcess GetCurrentProcessId GlobalMemoryStatusEx GetSystemInfo GetTickCount GetTickCount64 VirtualAlloc VirtualProtect VirtualFree GetModuleHandleA GetProcAddress LoadResource LockResource SizeofResource FindResourceA K32GetModuleInformation QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead SetUnhandledExceptionFilter GetStartupInfoW GetModuleHandleW RtlUnwindEx GetLastError SetLastError FlsAlloc FlsGetValue FlsSetValue FlsFree EnterCriticalSection LeaveCriticalSection InitializeCriticalSectionEx DeleteCriticalSection RtlLookupFunctionEntry RaiseException RtlPcToFileHeader GetStdHandle WriteFile GetModuleFileNameW ExitProcess TerminateProcess FreeLibrary GetModuleHandleExW IsProcessorFeaturePresent RtlCaptureContext RtlVirtualUnwind IsDebuggerPresent UnhandledExceptionFilter HeapAlloc HeapFree FindClose FindFirstFileExW FindNextFileW IsValidCodePage GetACP GetOEMCP GetCPInfo GetCommandLineA GetCommandLineW MultiByteToWideChar WideCharToMultiByte GetEnvironmentStringsW FreeEnvironmentStringsW SetStdHandle GetFileType GetStringTypeW

Name

.text

Size

53KB

Virtual Size

52KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

39KB

Virtual Size

38KB

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

4KB

Virtual Size

3KB

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

3.5MB

Virtual Size

3.5MB

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

chrome_update_old.exe

bcrypt

ole32

oleaut32

mscoree

user32

kernel32

generic