tofsee | virussign[.]com_b2144173807feda50a8d2c7e3b224790[.]vir

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General

Target
virussign.com_b2144173807feda50a8d2c7e3b224790.vir
Size 71KB
Sample240602-xe59vabb5y
SHA256 61adc6d3ea54ec6cb6b2dce58bb892f7aaf2c2b811b6c136ff68ae57f0771858
MD5 b2144173807feda50a8d2c7e3b224790
SHA1 eabae32ab9fd739c577cb1f578807431a69abfc3
SHA512 d536f39c39feac56218fb59bad697ec68922685f2737bc9263310bfe5d15492a7009bb9e8089976d175e9a83375ba70c828242c0c99ec311eacc47731ccc7ad4
SSDEEP 1536:Xgs2wgCqbfusDBegRmY3xHER7WRWdpI7Uc:VgCqCsDB/Rm8klpI4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

tofsee

Malware Config

Signatures

Tofsee family
tofsee

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
virussign.com_b2144173807feda50a8d2c7e3b224790.vir

File Explorer

virussign.com_b2144173807feda50a8d2c7e3b224790.vir

.exe 71KB

virussign.com_b2144173807feda50a8d2c7e3b224790.vir

IMPHASH 0bdef4d92a94790d7d279561a490c5bb
SHA256 61adc6d3ea54ec6cb6b2dce58bb892f7aaf2c2b811b6c136ff68ae57f0771858
MD5 b2144173807feda50a8d2c7e3b224790
SHA1 eabae32ab9fd739c577cb1f578807431a69abfc3
SHA512 d536f39c39feac56218fb59bad697ec68922685f2737bc9263310bfe5d15492a7009bb9e8089976d175e9a83375ba70c828242c0c99ec311eacc47731ccc7ad4
SSDEEP 1536:Xgs2wgCqbfusDBegRmY3xHER7WRWdpI7Uc:VgCqCsDB/Rm8klpI4
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

39531

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

ws2_32

ioctlsocket __WSAFDIsSet WSAStartup send connect setsockopt bind listen accept getsockname htonl gethostname socket select recv ntohs htons sendto gethostbyaddr inet_ntoa gethostbyname inet_addr getpeername closesocket

dbghelp

StackWalk64

kernel32

GetVolumeInformationA GetComputerNameA GetTickCount GetCurrentProcess GetModuleHandleA GetSystemInfo GetVersionExA lstrcmpiA lstrlenA Sleep lstrcpynA InterlockedExchange GetCurrentThreadId ExitProcess GetOverlappedResult WaitForSingleObject GetLastError WriteFile ReadFile CreateFileA DisconnectNamedPipe ConnectNamedPipe CreateNamedPipeA CloseHandle LoadLibraryA GetEnvironmentVariableA DeleteFileA IsBadWritePtr IsBadCodePtr lstrcpyA lstrcmpA VirtualProtect IsBadReadPtr VirtualFree WriteProcessMemory VirtualAllocEx VirtualAlloc SetFilePointer GetFileSize SetFileAttributesA GetDiskFreeSpaceA GetWindowsDirectoryA GetProcAddress LocalFree GetFileAttributesExA LocalAlloc CreateProcessA GetTempPathA SystemTimeToFileTime GetSystemTime DeviceIoControl CreateFileW GetModuleFileNameA ResumeThread SetThreadContext TerminateProcess GetThreadContext lstrcatA CreateThread GetDriveTypeA GetCommandLineA SetUnhandledExceptionFilter SetErrorMode InterlockedIncrement GetLocalTime GetTimeZoneInformation FileTimeToLocalFileTime FileTimeToSystemTime InterlockedDecrement HeapSize GetSystemTimeAsFileTime MultiByteToWideChar lstrlenW GetStartupInfoW GetProcessHeap HeapAlloc HeapReAlloc HeapFree FreeLibrary CreateEventA GetSystemDirectoryA

user32

wsprintfA CharToOemA

advapi32

ConvertSidToStringSidA AllocateAndInitializeSid CreateProcessWithLogonW RegCreateKeyExA StartServiceCtrlDispatcherA RegisterServiceCtrlHandlerA SetServiceStatus RegDeleteValueA RegGetKeySecurity RegSetKeySecurity RegSetValueExA GetLengthSid GetFileSecurityA GetSecurityDescriptorOwner EqualSid InitializeSecurityDescriptor SetSecurityDescriptorOwner SetFileSecurityA GetSecurityDescriptorDacl GetAce DeleteAce SetSecurityDescriptorDacl RegQueryValueExA RegEnumKeyA RegOpenKeyExA RegEnumValueA GetUserNameW LookupAccountNameW LookupAccountNameA GetUserNameA RegCloseKey CheckTokenMembership FreeSid

shell32

ShellExecuteA ShellExecuteExW

oleaut32

SysAllocStringByteLen