implant_urifix[.]exe

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General

Target
implant_urifix.exe
Size 1.2MB
Sample261023-asktqsbs2n
SHA256 423cbc2376a88cf8f7cf978af8365bcba15b1b9dc0fb56039b5626f9050974d3
MD5 b44e619044b67f82d478a13576c82ec3
SHA1 3ca164344715bd6aa74d2d9180d9cce236900064
SHA512 76aa5300ffc1c2e790850473b47c13776973b89a8247ce6f0aa3b28dd526569500772d113e9b25eeff2be2f719f8507315249a96f92177dd2354d49c48d67128
SSDEEP 24576:1wXBVzSD2f0tUSeZ752EoMYtrvdtuhouR2ghuF:1wXBVhf0tUSWV2aYVvdtuhRa
TLSH
T1FE457C52F66290ECC46AC1B883569532FA71B889073579FF0AC8A6313E65FE05F3D709
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
implant_urifix.exe

File Explorer

implant_urifix.exe

.exe 1.2MB

implant_urifix.exe

IMPHASH a12d53393639a7706afd97003dbae1ff
SHA256 423cbc2376a88cf8f7cf978af8365bcba15b1b9dc0fb56039b5626f9050974d3
MD5 b44e619044b67f82d478a13576c82ec3
SHA1 3ca164344715bd6aa74d2d9180d9cce236900064
SHA512 76aa5300ffc1c2e790850473b47c13776973b89a8247ce6f0aa3b28dd526569500772d113e9b25eeff2be2f719f8507315249a96f92177dd2354d49c48d67128
SSDEEP 24576:1wXBVzSD2f0tUSeZ752EoMYtrvdtuhouR2ghuF:1wXBVhf0tUSWV2aYVvdtuhRa
TLSH
T1FE457C52F66290ECC46AC1B883569532FA71B889073579FF0AC8A6313E65FE05F3D709
MD5 SHA1 SHA512 SSDEEP TLSH

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

800424

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

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

implant.pdb

kernel32

AddVectoredExceptionHandler AllocConsole CancelIo CloseHandle CompareStringOrdinal CompareStringW CopyFileExW CreateEventW CreateFileW CreateMutexA CreatePipe CreateProcessA CreateProcessW CreateRemoteThread CreateThread CreateToolhelp32Snapshot DeleteCriticalSection DeleteFileW DuplicateHandle EncodePointer EnterCriticalSection ExitProcess ExitThread FindClose FindFirstFileExA FindFirstFileExW FindNextFileA FindNextFileW FlushFileBuffers FormatMessageW FreeEnvironmentStringsW FreeLibrary GetACP GetCPInfo GetCommandLineA GetCommandLineW GetComputerNameW GetConsoleCP GetConsoleMode GetConsoleOutputCP GetConsoleWindow GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle GetFileInformationByHandleEx GetFileType GetFinalPathNameByHandleW GetFullPathNameW GetLastError GetModuleFileNameA GetModuleFileNameW GetModuleHandleA GetModuleHandleExW GetModuleHandleW GetOEMCP GetOverlappedResult GetProcAddress GetProcessHeap GetProcessId GetStartupInfoW GetStdHandle GetStringTypeW GetSystemDirectoryW GetSystemTimeAsFileTime GetVolumeInformationW GetWindowsDirectoryW GlobalFree HeapAlloc HeapFree HeapReAlloc HeapSize InitializeCriticalSectionAndSpinCount InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage LCMapStringW LeaveCriticalSection LoadLibraryA LoadLibraryExA LoadLibraryExW LocalFree MoveFileExW MultiByteToWideChar OpenProcess Process32First Process32Next QueryPerformanceCounter QueryPerformanceFrequency RaiseException ReadFile ReadFileEx ReleaseMutex ResumeThread RtlCaptureContext RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwindEx RtlVirtualUnwind SetEnvironmentVariableA SetFileInformationByHandle SetFilePointerEx SetHandleInformation SetLastError SetStdHandle SetThreadStackGuarantee SetUnhandledExceptionFilter Sleep SleepEx SwitchToThread TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnhandledExceptionFilter VirtualAllocEx VirtualProtectEx WaitForMultipleObjects WaitForSingleObject WaitForSingleObjectEx WideCharToMultiByte WriteConsoleW WriteFile WriteFileEx WriteProcessMemory lstrlenW

advapi32

ConvertSidToStringSidW CryptAcquireContextW CryptDestroyKey CryptImportKey CryptReleaseContext GetSidSubAuthority GetSidSubAuthorityCount GetTokenInformation GetUserNameW LookupAccountSidW LookupPrivilegeNameW OpenProcessToken RegCloseKey RegCreateKeyExW RegCreateKeyTransactedW RegDeleteTreeW RegDeleteValueW RegEnumKeyExW RegEnumValueW RegOpenKeyExW RegOpenKeyTransactedW RegQueryInfoKeyW RegQueryValueExW RegSetValueExW

bcryptprimitives

ProcessPrng

mscoree

CLRCreateInstance

psapi

GetModuleFileNameExW

oleaut32

SafeArrayAccessData SafeArrayCreateVector SafeArrayDestroy SafeArrayPutElement SafeArrayUnaccessData SysAllocString SysFreeString SysStringLen

user32

ShowWindow

winhttp

WinHttpCloseHandle WinHttpGetIEProxyConfigForCurrentUser WinHttpGetProxyForUrl WinHttpOpen

ktmw32

CommitTransaction CreateTransaction

api-ms-win-core-synch-l1-2-0

WaitOnAddress WakeByAddressAll WakeByAddressSingle

ws2_32

WSACleanup WSAGetLastError WSASocketW WSAStartup closesocket connect freeaddrinfo getaddrinfo getpeername getsockopt ioctlsocket recv select send setsockopt

secur32

AcceptSecurityContext AcquireCredentialsHandleA DecryptMessage DeleteSecurityContext EncryptMessage FreeContextBuffer FreeCredentialsHandle InitializeSecurityContextW QueryContextAttributesW

crypt32

CertAddCertificateContextToStore CertCloseStore CertCreateCertificateContext CertDuplicateCertificateChain CertDuplicateCertificateContext CertDuplicateStore CertEnumCertificatesInStore CertFreeCertificateChain CertFreeCertificateContext CertGetCertificateChain CertOpenStore CertSetCertificateContextProperty CertVerifyCertificateChainPolicy CryptDecodeObjectEx CryptStringToBinaryA

ntdll

NtCreateNamedPipeFile NtOpenFile NtReadFile NtWriteFile RtlNtStatusToDosError

Name

.text

Size

1.2MB

Virtual Size

1.2MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.gfids

Size

512B

Virtual Size

128B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

512B

Virtual Size

153B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

6KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

implant_urifix.exe

kernel32

advapi32

bcryptprimitives

mscoree

psapi

oleaut32

user32

winhttp

ktmw32

api-ms-win-core-synch-l1-2-0

ws2_32

secur32

crypt32

ntdll

generic