2026-08-21_efe4911f05ebb25cfccf5e0ce05300c4_amadey_cobalt-strike_hijackloader_satacom_vidar_wannacry

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General

Target
2026-08-21_efe4911f05ebb25cfccf5e0ce05300c4_amadey_cobalt-strike_hijackloader_satacom_vidar_wannacry
Size 1.2MB
Sample260821-prs62sbe22
SHA256 602b5cf9963d7c5f7a4833424d441c72cb1635083b41f5db452f78ddfddcc751
MD5 efe4911f05ebb25cfccf5e0ce05300c4
SHA1 e57b9eceed54b77190a187ff60797d8ed54adbe8
SHA512 09d88fa9fe36564df51a39ae7c51f7f18d9a5a90dffc7f6ebe85d9c4ba901903f05ba90ea886fdfccc866a4208835deed1401e799d1a3d03efb52fbfccace837
SSDEEP 24576:icMJlPooFplYaERaBU3mnXoZ643mnXoZ6i6cMJlancMJlPooFplYaERaBp:iRJE3k03kHRJARJZ
TLSH
T178559E03F79800E8E25AC2349AE65A13EB767C56077097CF136496162F72BD0EF3A395
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

Malware Config

Signatures

Codesign digest Mismatch 1 IoCs

File was altered after it was signed.

resource
2026-08-21_efe4911f05ebb25cfccf5e0ce05300c4_amadey_cobalt-strike_hijackloader_satacom_vidar_wannacry

File Explorer

2026-08-21_efe4911f05ebb25cfccf5e0ce05300c4_amadey_cobalt-strike_hijackloader_satacom_vidar_wannacry

.exe 1.2MB

2026-08-21_efe4911f05ebb25cfccf5e0ce05300c4_amadey_cobalt-strike_hijackloader_satacom_vidar_wannacry

IMPHASH a8eca7af7735bd8ecf18aa4dbeb1f12a
SHA256 602b5cf9963d7c5f7a4833424d441c72cb1635083b41f5db452f78ddfddcc751
MD5 efe4911f05ebb25cfccf5e0ce05300c4
SHA1 e57b9eceed54b77190a187ff60797d8ed54adbe8
SHA512 09d88fa9fe36564df51a39ae7c51f7f18d9a5a90dffc7f6ebe85d9c4ba901903f05ba90ea886fdfccc866a4208835deed1401e799d1a3d03efb52fbfccace837
SSDEEP 24576:icMJlPooFplYaERaBU3mnXoZ643mnXoZ6i6cMJlancMJlPooFplYaERaBp:iRJE3k03kHRJARJZ
TLSH
T178559E03F79800E8E25AC2349AE65A13EB767C56077097CF136496162F72BD0EF3A395
MD5 SHA1 SHA512 SSDEEP TLSH

Codesign digest Mismatch

File was altered after it was signed.

PE Signature issue

Digest

b7:22:71:8a:4a:6c:63:7e:b0:72:29:ef:28:c4:18:4d:8f:04:d1:53:c8:fb:81:c7:fb:64:16:4b:39:09:6a:95

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Not trusted

Signing Certificate

CN=.NET,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Chains

Aug 20, 2026

CN=.NET,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Minor OS version

Major OS version

Entry point

65216

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_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

D:\a\_work\1\s\artifacts\obj\win-x64.Release\corehost\dotnet\dotnet.pdb

kernel32

EnterCriticalSection GetFullPathNameW FindNextFileW GetCurrentProcess GetModuleHandleExW GetModuleFileNameW LeaveCriticalSection InitializeCriticalSection GetEnvironmentVariableW FindClose MultiByteToWideChar FindFirstFileExW GetFileAttributesExW LoadLibraryA GetProcAddress DeleteCriticalSection GetModuleHandleW WideCharToMultiByte LoadLibraryExW FreeLibrary GetLastError OutputDebugStringW TlsFree TlsSetValue TlsGetValue TlsAlloc InitializeCriticalSectionAndSpinCount SetLastError RaiseException RtlPcToFileHeader RtlUnwindEx InitializeSListHead GetSystemTimeAsFileTime GetCurrentThreadId GetCurrentProcessId QueryPerformanceCounter IsDebuggerPresent IsProcessorFeaturePresent TerminateProcess SetUnhandledExceptionFilter UnhandledExceptionFilter RtlVirtualUnwind RtlLookupFunctionEntry RtlCaptureContext LCMapStringEx DecodePointer EncodePointer InitializeCriticalSectionEx GetStringTypeW

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

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

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

setvbuf _wfopen __stdio_common_vswprintf _set_fmode __stdio_common_vfwprintf fputws fputwc __p__commode fflush __stdio_common_vsprintf_s __acrt_iob_func

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

wcsncmp _wcsicmp _wcsdup strcpy_s wcsnlen strcspn

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

wcstoul _wtoi

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

_set_new_mode _callnewh malloc calloc free

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

__pctype_func ___mb_cur_max_func setlocale ___lc_locale_name_func localeconv _unlock_locales _configthreadlocale _lock_locales ___lc_codepage_func

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

frexp __setusermatherr

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

_gmtime64_s wcsftime _time64

Name

.text

Size

81KB

Virtual Size

80KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

31KB

Virtual Size

30KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

1KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

5KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

1024B

Virtual Size

788B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2026-08-21_efe4911f05ebb25cfccf5e0ce05300c4_amadey_cobalt-strike_hijackloader_satacom_vidar_wannacry

PE Signature issue

kernel32

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

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

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

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

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

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

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

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

generic