2024-02-12_4c8e0c464ea2f990bfa5141fda442388_ryuk

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General

Target

2024-02-12_4c8e0c464ea2f990bfa5141fda442388_ryuk
Size

536KB
MD5

4c8e0c464ea2f990bfa5141fda442388
SHA1

cb96a8ab1ab573231151b7e9048ec092bf23932e
SHA256

3c89a08c2a819e03c61aeeba0a3fe0940986caf1ab4dcbc3a4ba395634796aa9
SHA512

2b47fe531ac857177c5ed87e55b7324431d05a5e9d99c498423a1d67a198f9214f5683dd5364abda99e4da7b4b753f63815ac2335c98dd296b311c604ccdd6bf
SSDEEP

12288:wBMeNU29ABZTtN6bjeRIXZdNvs6PS1AjC:5iU29ABgbjrLPS1P

Score

1^/10

Malware Config

Signatures

Files

2024-02-12_4c8e0c464ea2f990bfa5141fda442388_ryuk
.exe windows:5 windows x64 arch:x64

14a983ebc55af1aef2d028ac045a38c3

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:9e:62:b2:c1:b2:95:1c:32:92:6b:4c:64:78:d1:df
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

02/09/2022, 00:00

Not After

04/04/2025, 23:59

Subject

CN=Free Time Software Technology Co.\, Ltd.,OU=研发部,O=Free Time Software Technology Co.\, Ltd.,ST=Shanghai,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0a:9e:62:b2:c1:b2:95:1c:32:92:6b:4c:64:78:d1:df
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

02/09/2022, 00:00

Not After

04/04/2025, 23:59

Subject

CN=Free Time Software Technology Co.\, Ltd.,OU=研发部,O=Free Time Software Technology Co.\, Ltd.,ST=Shanghai,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

cc:5e:2f:b1:ee:e7:6e:5b:64:14:2f:4f:09:e1:cd:43:38:12:ed:76:c5:2a:66:4e:22:9f:e8:9f:f2:d7:e9:b7
Signer

Actual PE Digest

cc:5e:2f:b1:ee:e7:6e:5b:64:14:2f:4f:09:e1:cd:43:38:12:ed:76:c5:2a:66:4e:22:9f:e8:9f:f2:d7:e9:b7

Digest Algorithm

sha256

PE Digest Matches

true

9d:81:4d:62:99:6b:e9:3e:ad:e3:4e:34:5c:b6:ef:e6:3c:82:63:a4
Signer

Actual PE Digest

9d:81:4d:62:99:6b:e9:3e:ad:e3:4e:34:5c:b6:ef:e6:3c:82:63:a4

Digest Algorithm

sha1

PE Digest Matches

true

Headers

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

Imports

shlwapi

SHDeleteValueW
SHSetValueW
SHDeleteKeyW

kernel32

DecodePointer
GetSystemDefaultLangID
Sleep
ExitThread
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
DeleteCriticalSection
GetCurrentThreadId
QueryPerformanceCounter
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetTickCount
GetModuleHandleW
GetProcAddress
FormatMessageW
WideCharToMultiByte
MultiByteToWideChar
GetCurrentProcess
OpenThread
TerminateThread
SetThreadExecutionState
CloseHandle
GetModuleFileNameA
GetModuleFileNameW
GetEnvironmentVariableW
OutputDebugStringA
OutputDebugStringW
GetDriveTypeW
GetTempPathW
VerSetConditionMask
GlobalAlloc
GlobalLock
GlobalUnlock
LocalFree
GetLastError
WaitForSingleObject
GetLogicalDrives
CreateProcessW
GetDiskFreeSpaceExW
VerifyVersionInfoW
GetFileSizeEx
WriteFile
ReadFile
FlushFileBuffers
SetEndOfFile
SetFilePointer
FindClose
GetFileTime
SetFileTime
GetSystemTime
SystemTimeToFileTime
CreateDirectoryW
RemoveDirectoryW
CreateFileW
SetFileAttributesW
GetFileAttributesW
DeleteFileW
FindFirstFileW
FindNextFileW
CopyFileW
MoveFileW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
CreateTimerQueue
SetEvent
WaitForSingleObjectEx
SignalObjectAndWait
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
EncodePointer
GetCurrentThread
GetThreadTimes
FreeLibrary
FreeLibraryAndExitThread
GetModuleHandleA
LoadLibraryExW
GetVersionExW
VirtualAlloc
VirtualFree
VirtualProtect
DuplicateHandle
ReleaseSemaphore
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
LoadLibraryW
RtlPcToFileHeader
RaiseException
RtlUnwindEx
HeapAlloc
HeapFree
GetFileAttributesExW
ExitProcess
GetModuleHandleExW
GetStdHandle
GetACP
GetFileType
GetProcessHeap
GetStringTypeW
GetTimeZoneInformation
CompareStringW
LCMapStringW
FindFirstFileExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableA
SetStdHandle
GetConsoleCP
GetConsoleMode
HeapSize
HeapReAlloc
SetFilePointerEx
WriteConsoleW
SwitchToThread

user32

MessageBoxW
ExitWindowsEx
EmptyClipboard
SetClipboardData
CloseClipboard
FindWindowExW
PostMessageW
OpenClipboard

ole32

CoTaskMemFree
StringFromCLSID
CoCreateInstance

ftcore

?gMultiLanguage@@3VCMultiLanguage@@A
?TranslateString@CMultiLanguage@@QEAAPEB_WPEB_W@Z
?theCfg@@3VCCfg@@A

lum_sdk64

?brd_sdk_get_consent_choice@@YAHXZ
?brd_sdk_set_logo_link@@YAXPEAD@Z
?brd_sdk_set_app_name@@YAXPEAD@Z
?brd_sdk_set_choice_change_cb@@YAXP6AXH@Z@Z
?brd_sdk_init@@YAXXZ
?brd_sdk_close@@YAXXZ
?brd_sdk_set_appid@@YAXPEAD@Z
?brd_sdk_show_consent@@YAXXZ
?brd_sdk_set_disagree_txt@@YAXW4not_peer_txt_t@@@Z

wininet

InternetOpenUrlW
InternetCloseHandle
InternetOpenW

advapi32

OpenProcessToken
AllocateAndInitializeSid
FreeSid
LookupPrivilegeValueW
CheckTokenMembership
RegCloseKey
RegCreateKeyExA
RegCreateKeyExW
RegDeleteKeyA
RegSetValueExW
RegSetValueExA
RegDeleteKeyW
RegDeleteValueA
RegDeleteValueW
RegOpenKeyExA
RegQueryValueExW
RegQueryValueExA
RegOpenKeyExW
AdjustTokenPrivileges

shell32

ShellExecuteExW
SHFileOperationW

Sections

.text
Size: 342KB - Virtual size: 342KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 108KB - Virtual size: 108KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 10KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 21KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 26KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

14a983ebc55af1aef2d028ac045a38c3

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

0a:9e:62:b2:c1:b2:95:1c:32:92:6b:4c:64:78:d1:dfCertificate

Extended Key Usages

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

0a:9e:62:b2:c1:b2:95:1c:32:92:6b:4c:64:78:d1:dfCertificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

cc:5e:2f:b1:ee:e7:6e:5b:64:14:2f:4f:09:e1:cd:43:38:12:ed:76:c5:2a:66:4e:22:9f:e8:9f:f2:d7:e9:b7Signer

9d:81:4d:62:99:6b:e9:3e:ad:e3:4e:34:5c:b6:ef:e6:3c:82:63:a4Signer

Headers

DLL Characteristics

File Characteristics

Imports

shlwapi

kernel32

user32

ole32

ftcore

lum_sdk64

wininet

advapi32

shell32

Sections

.text Size: 342KB - Virtual size: 342KB

.rdata Size: 108KB - Virtual size: 108KB

.data Size: 10KB - Virtual size: 17KB

.pdata Size: 21KB - Virtual size: 21KB

.gfids Size: 2KB - Virtual size: 2KB

.rsrc Size: 26KB - Virtual size: 26KB

.reloc Size: 3KB - Virtual size: 3KB

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

0a:9e:62:b2:c1:b2:95:1c:32:92:6b:4c:64:78:d1:df
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

0a:9e:62:b2:c1:b2:95:1c:32:92:6b:4c:64:78:d1:df
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

cc:5e:2f:b1:ee:e7:6e:5b:64:14:2f:4f:09:e1:cd:43:38:12:ed:76:c5:2a:66:4e:22:9f:e8:9f:f2:d7:e9:b7
Signer

9d:81:4d:62:99:6b:e9:3e:ad:e3:4e:34:5c:b6:ef:e6:3c:82:63:a4
Signer

.text
Size: 342KB - Virtual size: 342KB

.rdata
Size: 108KB - Virtual size: 108KB

.data
Size: 10KB - Virtual size: 17KB

.pdata
Size: 21KB - Virtual size: 21KB

.gfids
Size: 2KB - Virtual size: 2KB

.rsrc
Size: 26KB - Virtual size: 26KB

.reloc
Size: 3KB - Virtual size: 3KB