2026-10-08_1fff34abcb7b45d35fcf7ca56895e38e_cobalt-strike_icedid_mespinoza_njrat_ryuk_vidar

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General

Target
2026-10-08_1fff34abcb7b45d35fcf7ca56895e38e_cobalt-strike_icedid_mespinoza_njrat_ryuk_vidar
Size 991KB
Sample261009-yb4saabs3p
SHA256 9ad328e57e443d1260ba8b121fc13da80e160da87ffc349bc3218f92d3c1f6a1
MD5 1fff34abcb7b45d35fcf7ca56895e38e
SHA1 f138d4c3734a17b22f3c92f622afb39329abc302
SHA512 4b6d3642b75e01d5ae8c4c92473891402d1339b8d9bfd8599d3e1b78186498f4f2db55d9cb1312309877d8fe416eb38017e2ab34e366195d2061879beabdfb5e
SSDEEP 24576:HoV290vJ4VFYcSYHLAseOcW0iAXcrgb6i3IZqwSWY/UsVc:IV22qVic2fWHAXcrG66I4x/U8c
TLSH
T1E9250169B3E109F9DC67C278CCA2C821E57238560351EADF13A45A260F73BD46E3EB45
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2026-10-08_1fff34abcb7b45d35fcf7ca56895e38e_cobalt-strike_icedid_mespinoza_njrat_ryuk_vidar

File Explorer

2026-10-08_1fff34abcb7b45d35fcf7ca56895e38e_cobalt-strike_icedid_mespinoza_njrat_ryuk_vidar

.exe 991KB

2026-10-08_1fff34abcb7b45d35fcf7ca56895e38e_cobalt-strike_icedid_mespinoza_njrat_ryuk_vidar

IMPHASH 33d31a4df5121c8c368d8b7a65733fa3
SHA256 9ad328e57e443d1260ba8b121fc13da80e160da87ffc349bc3218f92d3c1f6a1
MD5 1fff34abcb7b45d35fcf7ca56895e38e
SHA1 f138d4c3734a17b22f3c92f622afb39329abc302
SHA512 4b6d3642b75e01d5ae8c4c92473891402d1339b8d9bfd8599d3e1b78186498f4f2db55d9cb1312309877d8fe416eb38017e2ab34e366195d2061879beabdfb5e
SSDEEP 24576:HoV290vJ4VFYcSYHLAseOcW0iAXcrgb6i3IZqwSWY/UsVc:IV22qVic2fWHAXcrG66I4x/U8c
TLSH
T1E9250169B3E109F9DC67C278CCA2C821E57238560351EADF13A45A260F73BD46E3EB45
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

UPX packed file

Detects executables packed with UPX/modified UPX open source packer.

upx
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

62480

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

z:\task_1581954009\build\src\obj-firefox\toolkit\components\maintenanceservice\maintenanceservice.pdb

user32

LoadStringA wsprintfW

advapi32

AdjustTokenPrivileges AllocateAndInitializeSid BuildExplicitAccessWithNameW ChangeServiceConfig2W ChangeServiceConfigW CloseServiceHandle ControlService CreateServiceW CreateWellKnownSid CryptAcquireContextA CryptCreateHash CryptDestroyHash CryptGetHashParam CryptHashData CryptReleaseContext DeleteService FreeSid GetEffectiveRightsFromAclW GetSecurityDescriptorDacl GetSecurityInfo InitializeSecurityDescriptor LookupAccountSidW LookupPrivilegeValueA OpenProcessToken OpenSCManagerA OpenSCManagerW OpenServiceW QueryServiceConfigW QueryServiceObjectSecurity QueryServiceStatus QueryServiceStatusEx RegCloseKey RegEnumKeyExW RegGetValueW RegOpenKeyExW RegQueryInfoKeyW RegQueryValueExW RegSetValueExW RegisterServiceCtrlHandlerW SetEntriesInAclW SetSecurityDescriptorDacl SetSecurityInfo SetServiceObjectSecurity SetServiceStatus StartServiceCtrlDispatcherW

crypt32

CertCloseStore CertFindCertificateInStore CertFreeCertificateContext CertGetNameStringA CertGetNameStringW CryptMsgClose CryptMsgGetParam CryptQueryObject

ole32

CoTaskMemFree

rpcrt4

RpcStringFreeW UuidCreate UuidToStringW

shell32

SHFileOperationW SHGetKnownFolderPath

wintrust

WinVerifyTrust

shlwapi

PathAppendW PathCanonicalizeW PathIsUNCServerShareW PathQuoteSpacesW PathRemoveFileSpecW PathStripPathW PathStripToRootW PathUnquoteSpacesW

version

GetFileVersionInfoSizeW GetFileVersionInfoW VerQueryValueW

kernel32

CloseHandle CompareStringW CopyFileW CreateDirectoryW CreateEventW CreateFileW CreateProcessW CreateThread CreateToolhelp32Snapshot DeleteCriticalSection DeleteFileW DeviceIoControl EncodePointer EnterCriticalSection ExitProcess FindClose FindFirstFileExW FindFirstFileW FindNextFileW FlushFileBuffers FreeEnvironmentStringsW FreeLibrary GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleCP GetConsoleMode GetCurrentProcess GetCurrentProcessId GetCurrentThreadId GetDriveTypeW GetEnvironmentStringsW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle GetFileSize GetFileType GetFullPathNameW GetLastError GetModuleFileNameW GetModuleHandleExW GetModuleHandleW GetOEMCP GetProcAddress GetProcessHeap GetStartupInfoW GetStdHandle GetStringTypeW GetSystemTimeAsFileTime HeapAlloc HeapFree HeapReAlloc HeapSize InitializeCriticalSectionAndSpinCount InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage LCMapStringW LeaveCriticalSection LoadLibraryExW LocalAlloc LocalFree MoveFileExW MoveFileW MultiByteToWideChar Process32FirstW Process32NextW QueryPerformanceCounter RaiseException ReadConsoleW ReadFile ResetEvent RtlCaptureContext RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetEndOfFile SetEnvironmentVariableW SetEvent SetFileAttributesW SetFilePointerEx SetLastError SetStdHandle SetUnhandledExceptionFilter Sleep TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnhandledExceptionFilter WaitForSingleObject WaitForSingleObjectEx WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW

Name

.text

Size

157KB

Virtual Size

156KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

57KB

Virtual Size

56KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

8KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

7KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.00cfg

Size

512B

Virtual Size

16B

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

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

UPX1

Size

763KB

Virtual Size

764KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

File Explorer

2026-10-08_1fff34abcb7b45d35fcf7ca56895e38e_cobalt-strike_icedid_mespinoza_njrat_ryuk_vidar

user32

advapi32

crypt32

ole32

rpcrt4

shell32

wintrust

shlwapi

version

kernel32

generic