2026-10-03_3745908e6b5f4006d4cf4981ab181416_akira_cobalt-strike_quasar-rat

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General

Target
2026-10-03_3745908e6b5f4006d4cf4981ab181416_akira_cobalt-strike_quasar-rat
Size 521KB
Sample261004-sbrvtswtcy
SHA256 2017b696219b15fe37f3b199a634f49a095f9bc3320fba17e67911f745544ef6
MD5 3745908e6b5f4006d4cf4981ab181416
SHA1 44c852c2d92d00b3b95ca07a5a2c8bac3a1b52ae
SHA512 9b6dfb2048d1795e6696bd89b5a852cafc96b5585d0db1623dd458aed115df85fb7907044d746de85a58d14f7b82cf186b9bc386de665da0263a05c8885a0636
SSDEEP 12288:M2bDbqxpdDHnswdW9jWe/xhVSuEcenLeM:/j1D9jx5C
TLSH
T12DB48D47B6A692FCD12AC074834699B3FA37B48A06327EBF03E496303E55D516F2DB14
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-10-03_3745908e6b5f4006d4cf4981ab181416_akira_cobalt-strike_quasar-rat

File Explorer

2026-10-03_3745908e6b5f4006d4cf4981ab181416_akira_cobalt-strike_quasar-rat

.exe 521KB

2026-10-03_3745908e6b5f4006d4cf4981ab181416_akira_cobalt-strike_quasar-rat

IMPHASH 01126ae04e8907c9efef434d1df04707
SHA256 2017b696219b15fe37f3b199a634f49a095f9bc3320fba17e67911f745544ef6
MD5 3745908e6b5f4006d4cf4981ab181416
SHA1 44c852c2d92d00b3b95ca07a5a2c8bac3a1b52ae
SHA512 9b6dfb2048d1795e6696bd89b5a852cafc96b5585d0db1623dd458aed115df85fb7907044d746de85a58d14f7b82cf186b9bc386de665da0263a05c8885a0636
SSDEEP 12288:M2bDbqxpdDHnswdW9jWe/xhVSuEcenLeM:/j1D9jx5C
TLSH
T12DB48D47B6A692FCD12AC074834699B3FA37B48A06327EBF03E496303E55D516F2DB14
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

5328

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DEBUG_STRIPPED

PDB paths

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

WaitOnAddress WakeByAddressAll WakeByAddressSingle

bcryptprimitives

ProcessPrng

crypt32

CertAddCertificateContextToStore CertCloseStore CertDuplicateCertificateChain CertDuplicateCertificateContext CertDuplicateStore CertEnumCertificatesInStore CertFreeCertificateChain CertFreeCertificateContext CertGetCertificateChain CertOpenStore CertVerifyCertificateChainPolicy

kernel32

CloseHandle CreateFileMappingA DuplicateHandle GetLastError GetModuleFileNameW GetModuleHandleA GetModuleHandleW GetProcAddress GetProcessHeap GetSystemDirectoryW GetSystemTimePreciseAsFileTime GetWindowsDirectoryW HeapAlloc HeapFree HeapReAlloc MapViewOfFile SetHandleInformation SetLastError UnmapViewOfFile AddVectoredExceptionHandler CompareStringOrdinal CreateDirectoryW CreateFileW CreateProcessW CreateThread CreateToolhelp32Snapshot CreateWaitableTimerExW DeleteCriticalSection DeleteFileW EnterCriticalSection FindClose FindFirstFileExW FormatMessageW FreeEnvironmentStringsW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentThread GetCurrentThreadId GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle GetFileInformationByHandleEx GetFullPathNameW GetStartupInfoA GetStdHandle GetTempPathW InitOnceBeginInitialize InitOnceComplete InitializeCriticalSection LeaveCriticalSection Module32FirstW Module32NextW MultiByteToWideChar QueryPerformanceCounter QueryPerformanceFrequency RaiseException ReadFileEx RtlCaptureContext RtlLookupFunctionEntry RtlUnwindEx RtlVirtualUnwind SetFileInformationByHandle SetFilePointerEx SetFileTime SetThreadStackGuarantee SetUnhandledExceptionFilter SetWaitableTimer Sleep SleepEx SwitchToThread TlsAlloc TlsFree TlsGetValue TlsSetValue VirtualProtect VirtualQuery WaitForSingleObject WriteConsoleW WriteFileEx __C_specific_handler

ntdll

RtlNtStatusToDosError NtCreateNamedPipeFile NtOpenFile NtReadFile NtWriteFile

secur32

AcceptSecurityContext AcquireCredentialsHandleA DecryptMessage DeleteSecurityContext EncryptMessage FreeContextBuffer FreeCredentialsHandle InitializeSecurityContextW QueryContextAttributesW

msvcrt

__getmainargs __initenv __iob_func __lconv_init __set_app_type __setusermatherr _acmdln _amsg_exit _cexit _commode _fmode _fpreset _initterm _onexit abort calloc exit fprintf free fwrite malloc memcmp memcpy memmove memset signal strlen strncmp vfprintf

user32

MessageBoxW

ws2_32

WSACleanup WSAGetLastError WSASocketW WSAStartup closesocket connect freeaddrinfo getaddrinfo getpeername getsockname getsockopt ioctlsocket recv select send setsockopt

Name

.text

Size

368KB

Virtual Size

367KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rdata

Size

54KB

Virtual Size

54KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.pdata

Size

8KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.xdata

Size

17KB

Virtual Size

17KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.bss

Size

Virtual Size

544B

Characteristics

IMAGE_SCN_CNT_UNINITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.idata

Size

7KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.CRT

Size

512B

Virtual Size

112B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.tls

Size

512B

Virtual Size

16B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.reloc

Size

1KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2026-10-03_3745908e6b5f4006d4cf4981ab181416_akira_cobalt-strike_quasar-rat

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

bcryptprimitives

crypt32

kernel32

ntdll

secur32

msvcrt

user32

ws2_32

generic