2026-08-20_507cc368574e6ac50e16c95a68249aef_cobalt-strike_mespinoza

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General

Target
2026-08-20_507cc368574e6ac50e16c95a68249aef_cobalt-strike_mespinoza
Size 641KB
Sample260820-1tk41awdkc
SHA256 da45c1bfab715edd565d10daa4fd735a7689f8e099d2f4fb686ccf00559af818
MD5 507cc368574e6ac50e16c95a68249aef
SHA1 802ec62531da425bff90bde934b3a85c75f72052
SHA512 84510aeaf7528bc7650264389c102f820f45c7698f116c952c332b8d69d2e20a7dfa052ee4d02a4d0195636e76e99084cc180f1fbc78566b6d07b393f5846093
SSDEEP 12288:asmsnHFdUYMJZAhm84WIZjdYlHFfZjdYaAbIBmr:hpHEJZAhCZdWdZdobA8
TLSH
T115D4BE13F34505ECE44AC27887868332E6B5BC954761A2CF2B8137223E72DD5AB3976D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-08-20_507cc368574e6ac50e16c95a68249aef_cobalt-strike_mespinoza

File Explorer

2026-08-20_507cc368574e6ac50e16c95a68249aef_cobalt-strike_mespinoza

.exe 641KB

2026-08-20_507cc368574e6ac50e16c95a68249aef_cobalt-strike_mespinoza

IMPHASH 38582ccb936d26a9439255a7aab7f069
SHA256 da45c1bfab715edd565d10daa4fd735a7689f8e099d2f4fb686ccf00559af818
MD5 507cc368574e6ac50e16c95a68249aef
SHA1 802ec62531da425bff90bde934b3a85c75f72052
SHA512 84510aeaf7528bc7650264389c102f820f45c7698f116c952c332b8d69d2e20a7dfa052ee4d02a4d0195636e76e99084cc180f1fbc78566b6d07b393f5846093
SSDEEP 12288:asmsnHFdUYMJZAhm84WIZjdYlHFfZjdYaAbIBmr:hpHEJZAhCZdWdZdobA8
TLSH
T115D4BE13F34505ECE44AC27887868332E6B5BC954761A2CF2B8137223E72DD5AB3976D
MD5 SHA1 SHA512 SSDEEP TLSH

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

157776

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_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

mozglue

??$AddMarker@UTextMarker@markers@baseprofiler@mozilla@@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@baseprofiler@mozilla@@YA?AVProfileBufferBlockIndex@1@AEBV?$ProfilerStringView@D@1@AEBVMarkerCategory@1@$$QEAVMarkerOptions@1@UTextMarker@markers@01@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z ??0PrintfTarget@mozilla@@IEAA@XZ ??1MutexImpl@detail@mozilla@@QEAA@XZ ??2@YAPEAX_K@Z ??3@YAXPEAX@Z ??3@YAXPEAX_K@Z ??_U@YAPEAX_K@Z ??_V@YAXPEAX@Z ?DllBlocklist_Initialize@@YAXI@Z ?GetProfilingStack@AutoProfilerLabel@baseprofiler@mozilla@@SAPEAVProfilingStack@23@XZ ?InvalidArrayIndex_CRASH@detail@mozilla@@YAX_K0@Z ?IsActiveAndUnpaused@RacyFeatures@detail@baseprofiler@mozilla@@SA_NXZ ?IsWin32kLockedDown@mozilla@@YA_NXZ ?Now@TimeStamp@mozilla@@CA?AV12@_N@Z ?PollPreXULSkeletonUIEvents@mozilla@@YAXXZ ?RegisterRuntimeExceptionModule@CrashReporter@@YAXXZ ?SetGeckoChildID@mozilla@@YAXPEBD@Z ?SetGeckoProcessType@mozilla@@YAXPEBD@Z ?SetWin32kLockedDownInPolicy@mozilla@@YAXXZ ?UnregisterRuntimeExceptionModule@CrashReporter@@YAXXZ ?WindowsDpiInitialization@mozilla@@YA?AW4WindowsDpiInitializationResult@1@XZ ?ensureCapacitySlow@ProfilingStack@baseprofiler@mozilla@@AEAAXXZ ?lock@MutexImpl@detail@mozilla@@IEAAXXZ ?profiler_current_thread_id@baseprofiler@mozilla@@YA?AVBaseProfilerThreadId@12@XZ ?profiler_init@baseprofiler@mozilla@@YAXPEAX@Z ?profiler_shutdown@baseprofiler@mozilla@@YAXXZ ?sChildProcessType@startup@mozilla@@3W4GeckoProcessType@@A ?unlock@MutexImpl@detail@mozilla@@IEAAXXZ ?vprint@PrintfTarget@mozilla@@QEAA_NPEBDPEAD@Z _wcsdup free malloc moz_xmalloc mozalloc_abort realloc strdup

ntdll

NtQueryVirtualMemory RtlAddFunctionTable RtlCaptureContext RtlLookupFunctionEntry RtlNtStatusToDosError RtlSetLastWin32Error RtlVirtualUnwind VerSetConditionMask

msvcp140

??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ ??0ios_base@std@@IEAA@XZ ??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ ??1ios_base@std@@UEAA@XZ ??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z ??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@PEBX@Z ??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_J@Z ??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@_K@Z ?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ ?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ ?_Raise_handler@std@@3P6AXAEBVexception@stdext@@@ZEA ?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ ?_Xlength_error@std@@YAXPEBD@Z ?_Xout_of_range@std@@YAXPEBD@Z ?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z ?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ ?good@ios_base@std@@QEBA_NXZ ?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z ?init@?$basic_ios@DU?$char_traits@D@std@@@std@@IEAAXPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@_N@Z ?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z ?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ ?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z ?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ ?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ ?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z ?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z

kernel32

AcquireSRWLockExclusive AssignProcessToJobObject CloseHandle CreateEventW CreateFileA CreateFileMappingA CreateFileMappingW CreateFileW CreateIoCompletionPort CreateJobObjectW CreateMutexW CreateNamedPipeW CreateProcessW CreateRemoteThread CreateThread DebugBreak DeleteCriticalSection DeleteProcThreadAttributeList DuplicateHandle EncodePointer EnterCriticalSection EnumSystemLocalesEx ExpandEnvironmentStringsW FlushInstructionCache FreeEnvironmentStringsW FreeLibrary GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentProcessorNumber GetCurrentThread GetCurrentThreadId GetEnvironmentStringsW GetEnvironmentVariableW GetFileType GetLastError GetLongPathNameW GetModuleFileNameW GetModuleHandleA GetModuleHandleW GetNativeSystemInfo GetProcAddress GetProcessHandleCount GetProcessHeaps GetProcessId GetProductInfo GetQueuedCompletionStatus GetSystemDirectoryW GetSystemInfo GetSystemTimeAsFileTime GetThreadId GetTickCount GetUserDefaultLCID GetUserDefaultLangID GetUserDefaultLocaleName GetVersionExW HeapDestroy HeapSetInformation InitOnceExecuteOnce InitializeCriticalSection InitializeCriticalSectionEx InitializeProcThreadAttributeList InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsWow64Process LeaveCriticalSection LoadLibraryExA LoadLibraryExW LoadLibraryW LocalFree MapViewOfFile MultiByteToWideChar PostQueuedCompletionStatus ProcessIdToSessionId QueryPerformanceCounter QueryPerformanceFrequency RaiseException ReadFile ReadProcessMemory RegisterWaitForSingleObject ReleaseSRWLockExclusive ResetEvent SearchPathW SetDllDirectoryW SetEnvironmentVariableW SetEvent SetFilePointerEx SetHandleInformation SetInformationJobObject SetLastError SetThreadAffinityMask SetUnhandledExceptionFilter SignalObjectAndWait Sleep SleepConditionVariableSRW TerminateJobObject TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnhandledExceptionFilter UnmapViewOfFile UnregisterWait UnregisterWaitEx UpdateProcThreadAttribute VerifyVersionInfoW VirtualAlloc VirtualAllocEx VirtualFree VirtualFreeEx VirtualProtect VirtualProtectEx VirtualQuery WaitForSingleObject WakeAllConditionVariable WideCharToMultiByte WriteProcessMemory lstrlenW

vcruntime140

__C_specific_handler __current_exception __current_exception_context memcmp memcpy memmove memset strrchr

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

__p__environ _putenv getenv

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

__p__commode __stdio_common_vsnprintf_s __stdio_common_vsnwprintf_s __stdio_common_vswprintf _set_fmode _wfopen fclose fgets

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

__p___argc __p___wargv _c_exit _cexit _configure_wide_argv _crt_atexit _errno _exit _get_initial_wide_environment _initialize_onexit_table _initialize_wide_environment _initterm _initterm_e _invalid_parameter_noinfo_noreturn _invoke_watson _register_onexit_function _register_thread_local_exe_atexit_callback _seh_filter_exe _set_app_type exit terminate

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

_stricmp _wcsnicmp strcpy strlen wcscmp wcscpy_s wcslen wcsncmp wcsncpy

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

rand_s

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

__setusermatherr ceilf

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

_configthreadlocale

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

_set_new_mode

GetHandleVerifier IsSandboxedProcess TargetConfigureOPMProtectedOutput TargetConfigureOPMProtectedOutput64 TargetCreateNamedPipeW TargetCreateNamedPipeW64 TargetCreateOPMProtectedOutputs TargetCreateOPMProtectedOutputs64 TargetCreateProcessA TargetCreateProcessA64 TargetCreateProcessW TargetCreateProcessW64 TargetCreateThread TargetCreateThread64 TargetDestroyOPMProtectedOutput TargetDestroyOPMProtectedOutput64 TargetEnumDisplayDevicesA TargetEnumDisplayDevicesA64 TargetEnumDisplayMonitors TargetEnumDisplayMonitors64 TargetGdiDllInitialize TargetGdiDllInitialize64 TargetGetCertificate TargetGetCertificate64 TargetGetCertificateByHandle TargetGetCertificateByHandle64 TargetGetCertificateSize TargetGetCertificateSize64 TargetGetCertificateSizeByHandle TargetGetCertificateSizeByHandle64 TargetGetForegroundWindow TargetGetForegroundWindow64 TargetGetMonitorInfoA TargetGetMonitorInfoA64 TargetGetMonitorInfoW TargetGetMonitorInfoW64 TargetGetOPMInformation TargetGetOPMInformation64 TargetGetOPMRandomNumber TargetGetOPMRandomNumber64 TargetGetStockObject TargetGetStockObject64 TargetGetSuggestedOPMProtectedOutputArraySize TargetGetSuggestedOPMProtectedOutputArraySize64 TargetNtCreateEvent TargetNtCreateEvent64 TargetNtCreateFile TargetNtCreateFile64 TargetNtCreateKey TargetNtCreateKey64 TargetNtCreateSection TargetNtCreateSection64 TargetNtImpersonateAnonymousToken TargetNtImpersonateAnonymousToken64 TargetNtMapViewOfSection TargetNtMapViewOfSection64 TargetNtOpenEvent TargetNtOpenEvent64 TargetNtOpenFile TargetNtOpenFile64 TargetNtOpenKey TargetNtOpenKey64 TargetNtOpenKeyEx TargetNtOpenKeyEx64 TargetNtOpenProcess TargetNtOpenProcess64 TargetNtOpenProcessToken TargetNtOpenProcessToken64 TargetNtOpenProcessTokenEx TargetNtOpenProcessTokenEx64 TargetNtOpenThread TargetNtOpenThread64 TargetNtOpenThreadToken TargetNtOpenThreadToken64 TargetNtOpenThreadTokenEx TargetNtOpenThreadTokenEx64 TargetNtQueryAttributesFile TargetNtQueryAttributesFile64 TargetNtQueryFullAttributesFile TargetNtQueryFullAttributesFile64 TargetNtSetInformationFile TargetNtSetInformationFile64 TargetNtSetInformationThread TargetNtSetInformationThread64 TargetNtUnmapViewOfSection TargetNtUnmapViewOfSection64 TargetRegisterClassW TargetRegisterClassW64 TargetSetOPMSigningKeyAndSequenceNumbers TargetSetOPMSigningKeyAndSequenceNumbers64 g_handles_to_close g_interceptions g_nt g_originals g_shared_IPC_size g_shared_delayed_integrity_level g_shared_delayed_mitigations g_shared_policy_size g_shared_section

Name

.text

Size

247KB

Virtual Size

247KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

38KB

Virtual Size

38KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

1024B

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

8KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

512B

Virtual Size

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

343KB

Virtual Size

343KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

1024B

Virtual Size

592B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2026-08-20_507cc368574e6ac50e16c95a68249aef_cobalt-strike_mespinoza

mozglue

ntdll

msvcp140

kernel32

vcruntime140

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

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

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

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

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

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

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

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

generic