sirkeira_stealer | Task[.]exe

Resubmissions

10/03/2026, 16:17

260310-tre2msev4v10

11/02/2026, 20:56

260211-zq472ahz6a7

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General

Target
Task.exe
Size 73.1MB
Sample260310-tre2msev4v
SHA256 6a804f64c2799a94782d7d219d34c9c6f843c713f2971db04a4d9a2eb9e263b2
MD5 4238323bd3cfdd1d07a9df028da0a5af
SHA1 7a0927f79c5b7917f6b38ece9fc29556b5459bd7
SHA512 136e6d7d2203fea098b9b2d3f1a9f89b824645acc01b7e027aeabfa155a40e6434ab920486e56ceff99ca1747a03ea720043bb7f31f6cc34ed841acb5e18b299
SSDEEP 1572864:bm67R7EWod80izXUb9jETHPQmMpnx9luHY7otnq/2jNN3oeSqjQnPXTH5H:bTR7EWod9jcvPOn36SeSqjQnPXL5
TLSH
T123F7338877941DE2EA54833B0617B94CAF59F50D67C9880FE7E871292CDF38A59FE900
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

pyinstaller sirkeira_stealer

Malware Config

Signatures

Detects Sirkeira Stealer Payload 1 IoCs

resource	yara_rule
static1/unpack001/Task.pyc	family_sirkeira_stealer

Sirkeira_stealer family
sirkeira_stealer

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Task.exe

File Explorer

Task.exe

.exe 73.1MB
Task.pyc

1.8MB

Task.exe

IMPHASH dcaf48c1f10b0efa0a4472200f3850ed
SHA256 6a804f64c2799a94782d7d219d34c9c6f843c713f2971db04a4d9a2eb9e263b2
MD5 4238323bd3cfdd1d07a9df028da0a5af
SHA1 7a0927f79c5b7917f6b38ece9fc29556b5459bd7
SHA512 136e6d7d2203fea098b9b2d3f1a9f89b824645acc01b7e027aeabfa155a40e6434ab920486e56ceff99ca1747a03ea720043bb7f31f6cc34ed841acb5e18b299
SSDEEP 1572864:bm67R7EWod80izXUb9jETHPQmMpnx9luHY7otnq/2jNN3oeSqjQnPXTH5H:bTR7EWod9jcvPOn36SeSqjQnPXL5
TLSH
T123F7338877941DE2EA54833B0617B94CAF59F50D67C9880FE7E871292CDF38A59FE900
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Detects Pyinstaller

pyinstaller
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

55856

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

user32

CreateWindowExW ShutdownBlockReasonCreate MsgWaitForMultipleObjects ShowWindow DestroyWindow RegisterClassW DefWindowProcW PeekMessageW DispatchMessageW TranslateMessage PostMessageW GetMessageW MessageBoxW MessageBoxA SystemParametersInfoW DestroyIcon SetWindowLongPtrW GetWindowLongPtrW GetClientRect InvalidateRect ReleaseDC GetDC DrawTextW GetDialogBaseUnits EndDialog DialogBoxIndirectParamW MoveWindow SendMessageW

comctl32

ord380

kernel32

GetACP IsValidCodePage GetStringTypeW GetFileAttributesExW SetEnvironmentVariableW FlushFileBuffers LCMapStringW CompareStringW VirtualProtect InitializeCriticalSectionEx GetOEMCP GetCPInfo GetLastError FreeLibrary GetProcAddress LoadLibraryExW GetModuleHandleW MulDiv FormatMessageW GetModuleFileNameW SetDllDirectoryW GetEnvironmentStringsW SetErrorMode CreateDirectoryW GetCommandLineW GetEnvironmentVariableW ExpandEnvironmentStringsW DeleteFileW FindClose FindFirstFileW FindNextFileW GetDriveTypeW RemoveDirectoryW GetTempPathW CloseHandle QueryPerformanceCounter QueryPerformanceFrequency WaitForSingleObject Sleep GetCurrentProcess TerminateProcess GetExitCodeProcess CreateProcessW GetStartupInfoW LocalFree SetConsoleCtrlHandler K32EnumProcessModules K32GetModuleFileNameExW CreateFileW FindFirstFileExW GetFinalPathNameByHandleW MultiByteToWideChar WideCharToMultiByte FlsFree FreeEnvironmentStringsW GetProcessHeap GetTimeZoneInformation HeapSize HeapReAlloc WriteConsoleW SetEndOfFile CreateSymbolicLinkW RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter IsProcessorFeaturePresent GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent RtlUnwindEx SetLastError EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree EncodePointer RaiseException RtlPcToFileHeader GetCommandLineA GetFileInformationByHandle GetFileType PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime ReadFile GetFullPathNameW SetStdHandle GetStdHandle WriteFile ExitProcess GetModuleHandleExW HeapFree GetConsoleMode ReadConsoleW SetFilePointerEx GetConsoleOutputCP GetFileSizeEx HeapAlloc GetCurrentDirectoryW FlsAlloc FlsGetValue FlsSetValue

advapi32

OpenProcessToken GetTokenInformation ConvertStringSecurityDescriptorToSecurityDescriptorW ConvertSidToStringSidW

gdi32

SelectObject DeleteObject CreateFontIndirectW

Name

.text

Size

175KB

Virtual Size

175KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

78KB

Virtual Size

78KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

20KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

9KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

19KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

File Explorer

Task.exe

user32

comctl32

kernel32

advapi32

gdi32

generic

Task.pyc