2026-08-08_c0b4c07bc5ff8f0c2c1c1d368a51ded6_akira_cobalt-strike_glassworm_quasar-rat_rusty-stealer

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General

Target
2026-08-08_c0b4c07bc5ff8f0c2c1c1d368a51ded6_akira_cobalt-strike_glassworm_quasar-rat_rusty-stealer
Size 34.2MB
Sample260808-ges2hsak9t
SHA256 8be81dd553e33dcbcb5b131c11b8014c66ebb847124e4ad71611cad0478bdff6
MD5 c0b4c07bc5ff8f0c2c1c1d368a51ded6
SHA1 06207652e75efd0b59c674ba0b7bea1c3372aa95
SHA512 31777972156143073b9c3292076d2f6c425c5b5a867e96d45d04c0786eb62c7262d93e43c94556764be4adc27841fb003c89218f2c3d24590bf6facceb07bb91
SSDEEP 196608:9YyyC3SgSWDueJvzbItYWGJEGhBXiw8sr3eVPwmZ:91ZbSAvpJUGhBXiw8s6w
TLSH
T1B7777D673E26C56BC357857F88BBA50D6331D301B24827A70F4CAD24EF427CB9936299
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

Malware Config

Signatures

Patched UPX-packed file 1 IoCs

Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

resource	yara_rule
sample	patched_upx

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-08-08_c0b4c07bc5ff8f0c2c1c1d368a51ded6_akira_cobalt-strike_glassworm_quasar-rat_rusty-stealer

File Explorer

2026-08-08_c0b4c07bc5ff8f0c2c1c1d368a51ded6_akira_cobalt-strike_glassworm_quasar-rat_rusty-stealer

.exe 34.2MB

2026-08-08_c0b4c07bc5ff8f0c2c1c1d368a51ded6_akira_cobalt-strike_glassworm_quasar-rat_rusty-stealer

IMPHASH 085ccdf4b201056254a41cc334bc84a8
SHA256 8be81dd553e33dcbcb5b131c11b8014c66ebb847124e4ad71611cad0478bdff6
MD5 c0b4c07bc5ff8f0c2c1c1d368a51ded6
SHA1 06207652e75efd0b59c674ba0b7bea1c3372aa95
SHA512 31777972156143073b9c3292076d2f6c425c5b5a867e96d45d04c0786eb62c7262d93e43c94556764be4adc27841fb003c89218f2c3d24590bf6facceb07bb91
SSDEEP 196608:9YyyC3SgSWDueJvzbItYWGJEGhBXiw8sr3eVPwmZ:91ZbSAvpJUGhBXiw8s6w
TLSH
T1B7777D673E26C56BC357857F88BBA50D6331D301B24827A70F4CAD24EF427CB9936299
MD5 SHA1 SHA512 SSDEEP TLSH

Patched UPX-packed file

Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

4820176

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

migration_schema-e2c35b043e209e8e.pdb

kernel32

AcquireSRWLockExclusive AcquireSRWLockShared AddVectoredExceptionHandler AreFileApisANSI CancelIo CloseHandle CompareFileTime CompareStringOrdinal CreateDirectoryW CreateEventA CreateEventW CreateFile2 CreateFileA CreateFileMappingA CreateFileMappingW CreateFileW CreateIoCompletionPort CreateMutexA CreateMutexW CreateProcessW CreateThread DeleteCriticalSection DeleteFileA DeleteFileW DeviceIoControl DuplicateHandle EnterCriticalSection ExitProcess FindClose FindFirstFileExW FindFirstFileW FindNextFileW FlushFileBuffers FlushViewOfFile FormatMessageA FormatMessageW FreeEnvironmentStringsW FreeLibrary GetCommandLineW GetComputerNameExW GetConsoleMode GetConsoleOutputCP GetConsoleScreenBufferInfo GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDiskFreeSpaceA GetDiskFreeSpaceW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesA GetFileAttributesExW GetFileAttributesW GetFileInformationByHandle GetFileInformationByHandleEx GetFileSize GetFileType GetFinalPathNameByHandleW GetFullPathNameA GetFullPathNameW GetLastError GetLocaleInfoEx GetModuleFileNameW GetModuleHandleA GetModuleHandleW GetNativeSystemInfo GetOverlappedResult GetProcAddress GetProcessHeap GetQueuedCompletionStatusEx GetStdHandle GetSystemDirectoryW GetSystemInfo GetSystemTime GetSystemTimeAsFileTime GetSystemTimePreciseAsFileTime GetTempPathA GetTempPathW GetTickCount GetWindowsDirectoryW HeapAlloc HeapCompact HeapCreate HeapDestroy HeapFree HeapReAlloc HeapSize HeapValidate InitOnceExecuteOnce InitializeCriticalSection InitializeSListHead InitializeSRWLock LeaveCriticalSection LoadLibraryA LoadLibraryW LocalFree LockFile LockFileEx MapViewOfFile MoveFileExW MultiByteToWideChar OutputDebugStringA OutputDebugStringW PostQueuedCompletionStatus QueryPerformanceCounter QueryPerformanceFrequency RaiseException ReadFile ReadFileEx ReleaseMutex ReleaseSRWLockExclusive ReleaseSRWLockShared RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind SetConsoleTextAttribute SetEndOfFile SetFileAttributesW SetFileInformationByHandle SetFilePointer SetFilePointerEx SetFileTime SetLastError SetThreadStackGuarantee SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW SleepEx SwitchToThread SystemTimeToFileTime TlsAlloc TlsGetValue TlsSetValue TryEnterCriticalSection UnlockFile UnlockFileEx UnmapViewOfFile VirtualUnlock WaitForMultipleObjects WaitForSingleObject WaitForSingleObjectEx WakeAllConditionVariable WideCharToMultiByte WriteConsoleW WriteFile WriteFileEx lstrlenW

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

WaitOnAddress WakeByAddressAll WakeByAddressSingle

ntdll

NtCancelIoFileEx NtCreateNamedPipeFile NtDeviceIoControlFile NtOpenFile NtReadFile NtWriteFile RtlNtStatusToDosError

userenv

GetUserProfileDirectoryW

bcryptprimitives

ProcessPrng

oleaut32

SysAllocString SysAllocStringByteLen SysAllocStringLen SysFreeString SysStringByteLen SysStringLen

msvcp140

??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ ??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z ??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ ??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ ??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ ??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ ??7ios_base@std@@QEBA_NXZ ?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ ?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ ?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ ?_Syserror_map@std@@YAPEBDH@Z ?_Throw_Cpp_error@std@@YAXH@Z ?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ ?_Winerror_map@std@@YAHH@Z ?_Xbad_alloc@std@@YAXXZ ?_Xbad_function_call@std@@YAXXZ ?_Xlength_error@std@@YAXPEBD@Z ?_Xout_of_range@std@@YAXPEBD@Z ?__ExceptionPtrAssign@@YAXPEAXPEBX@Z ?__ExceptionPtrCopy@@YAXPEAXPEBX@Z ?__ExceptionPtrCopyException@@YAXPEAXPEBX1@Z ?__ExceptionPtrCreate@@YAXPEAX@Z ?__ExceptionPtrDestroy@@YAXPEAX@Z ?__ExceptionPtrRethrow@@YAXPEBX@Z ?__ExceptionPtrToBool@@YA_NPEBX@Z ?bad@ios_base@std@@QEBA_NXZ ?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z ?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ ?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ ?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ ?fail@ios_base@std@@QEBA_NXZ ?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ ?flags@ios_base@std@@QEBAHXZ ?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ ?gbump@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXH@Z ?gcount@?$basic_istream@DU?$char_traits@D@std@@@std@@QEBA_JXZ ?good@ios_base@std@@QEBA_NXZ ?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ ?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z ?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ ?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ ?read@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEAD_J@Z ?seekg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@V?$fpos@U_Mbstatet@@@2@@Z ?seekg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@_JH@Z ?seekp@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@V?$fpos@U_Mbstatet@@@2@@Z ?seekp@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@_JH@Z ?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z ?setg@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z ?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD00@Z ?setp@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXPEAD0@Z ?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z ?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ ?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z ?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z ?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ ?tellg@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA?AV?$fpos@U_Mbstatet@@@2@XZ ?tellp@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA?AV?$fpos@U_Mbstatet@@@2@XZ ?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ ?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ ?uncaught_exception@std@@YA_NXZ ?width@ios_base@std@@QEAA_J_J@Z ?width@ios_base@std@@QEBA_JXZ ?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z ?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 _Cnd_signal _Cnd_wait _Mtx_lock _Mtx_unlock _Xtime_get_ticks

user32

CharUpperBuffW

vcruntime140

_CxxThrowException __C_specific_handler __CxxFrameHandler3 __current_exception __current_exception_context __std_exception_copy __std_exception_destroy _purecall memchr memcmp memcpy memmove memset strchr strrchr

vcruntime140_1

__CxxFrameHandler4

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

__acrt_iob_func __p__commode __stdio_common_vfprintf __stdio_common_vsprintf __stdio_common_vsscanf _chsize _fileno _get_osfhandle _open_osfhandle _set_fmode _setmode fclose feof ferror fflush fgets fopen fread fseek ftell fwrite

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

___lc_codepage_func _configthreadlocale

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

__p___argc __p___argv _beginthreadex _c_exit _cexit _configure_narrow_argv _crt_atexit _endthreadex _errno _exit _get_initial_narrow_environment _getpid _initialize_narrow_environment _initialize_onexit_table _initterm _initterm_e _register_onexit_function _register_thread_local_exe_atexit_callback _seh_filter_exe _set_app_type _wassert abort exit strerror terminate

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

_localtime64_s

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

_callnewh _msize _set_new_mode calloc free malloc realloc

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

bsearch qsort

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

_putenv getenv

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

_strdup strcmp strcspn strlen strncmp strncpy strspn wcscmp wcslen

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

atoi strtol

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

__setusermatherr _fdopen floor fmod log pow trunc

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

_mkdir

Name

.text

Size

4.7MB

Virtual Size

4.7MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

1.6MB

Virtual Size

1.6MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4.1MB

Virtual Size

4.1MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

276KB

Virtual Size

276KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.lprfc

Size

992KB

Virtual Size

992KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.lprfn

Size

13.7MB

Virtual Size

13.7MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.tls

Size

1024B

Virtual Size

925B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.reloc

Size

23KB

Virtual Size

22KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

.lcovfun

Size

7.9MB

Virtual Size

7.9MB

Characteristics

IMAGE_SCN_MEM_DISCARDABLE

Name

.lcovmap

Size

1.0MB

Virtual Size

1.0MB

Characteristics

IMAGE_SCN_MEM_DISCARDABLE

Sharing

General

Malware Config

Signatures

File Explorer

2026-08-08_c0b4c07bc5ff8f0c2c1c1d368a51ded6_akira_cobalt-strike_glassworm_quasar-rat_rusty-stealer

kernel32

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

ntdll

userenv

bcryptprimitives

oleaut32

msvcp140

user32

vcruntime140

vcruntime140_1

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

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

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

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

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

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

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

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

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

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

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

generic