2024-02-04_a6c9f36354d5a9f1e0c7143d401605d7_ryuk

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General

Target

2024-02-04_a6c9f36354d5a9f1e0c7143d401605d7_ryuk
Size

4.0MB
MD5

a6c9f36354d5a9f1e0c7143d401605d7
SHA1

d41b874d3b75595699e928998cad152ef94e2152
SHA256

de6bad4f57688b25bc16c0b8c6216887ff2cc39acbe08312b2f704a4b5247151
SHA512

082e255d5440945121fd3403849d891d512946c5882ab69f08a1bd38227062e7652aac70d1d902de0c2d5aa1c1cafd58dd771d7859253ddadbe4efea43e701ff
SSDEEP

49152:Rt5mvJTI9cJT6DrNupczrfuJ4jq7zNrab2uMnDY4PEkBhzzmdKzsCtfDY7wojRzk:YvJTUHZu6zrIvzpUOhedG76/jSqNw

Score

1^/10

Malware Config

Signatures

Files

2024-02-04_a6c9f36354d5a9f1e0c7143d401605d7_ryuk
.exe windows:5 windows x64 arch:x64

27c424952b768e04022e46d77de13bae

Code Sign

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

08:b4:00:98:9a:7b:9f:0d:6e:71:be:74:94:b3:32:e1
Certificate

Issuer

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

Not Before

04/01/2022, 00:00

Not After

02/01/2025, 23:59

Subject

SERIALNUMBER=201632879R,CN=PROXIMA BETA PTE. LIMITED,OU=PROXIMA BETA PTE. LIMITED,O=PROXIMA BETA PTE. LIMITED,L=Singapore,C=SG,1.3.6.1.4.1.311.60.2.1.3=#13025347,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

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

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,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

b3:bb:7b:c0:46:7f:81:22:ed:6e:a0:04:05:c5:90:1d:b0:59:e1:a9:54:4f:42:dd:5a:ad:fa:52:79:ee:ef:8d
Signer

Actual PE Digest

b3:bb:7b:c0:46:7f:81:22:ed:6e:a0:04:05:c5:90:1d:b0:59:e1:a9:54:4f:42:dd:5a:ad:fa:52:79:ee:ef:8d

Digest Algorithm

sha256

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

kernel32

GetSystemDefaultLangID
GetCurrentProcessId
GetCurrentThreadId
SetLastError
GetTickCount64
OpenEventW
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
CreateEventW
TerminateThread
WaitForMultipleObjects
GetProcAddress
VirtualAlloc
VirtualFree
OpenProcess
GetCurrentProcess
GetModuleFileNameW
GetModuleHandleW
WideCharToMultiByte
CreateFileW
TerminateProcess
GetACP
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
GetUserDefaultUILanguage
FreeLibrary
GetModuleFileNameA
GetModuleHandleExW
MultiByteToWideChar
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
IsValidCodePage
FindNextFileA
FindFirstFileExA
FindClose
GetProcessHeap
SetFilePointerEx
GetConsoleMode
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
CreateMutexW
lstrcpyW
CloseHandle
Sleep
GetLastError
QueryDosDeviceW
DeviceIoControl
WaitForSingleObject
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
InitializeCriticalSection
SetStdHandle
FlushFileBuffers
GetConsoleCP
HeapSize
WriteConsoleW
CreateThread
ExitThread
FreeLibraryAndExitThread
GetFileType
WriteFile
GetStdHandle
ExitProcess
HeapReAlloc
HeapFree
GetStringTypeW
EncodePointer
DecodePointer
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
LCMapStringW
GetLocaleInfoW
GetCPInfo
WaitForSingleObjectEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
InitializeSListHead
RtlPcToFileHeader
RaiseException
RtlUnwindEx
LoadLibraryExW
HeapAlloc

user32

LoadImageW
GetCursorPos
MessageBoxW
SetForegroundWindow
TrackPopupMenu
EnableMenuItem
CreatePopupMenu
DestroyWindow
CreateWindowExW
RegisterClassW
PostQuitMessage
DefWindowProcW
PostMessageW
DispatchMessageW
TranslateMessage
GetMessageW
AppendMenuW

shell32

Shell_NotifyIconW
ShellExecuteExW

advapi32

RegOpenKeyExW
RegCloseKey
GetTokenInformation
OpenProcessToken

shlwapi

SHDeleteValueW
SHSetValueW
PathRemoveFileSpecW
SHDeleteKeyA

Sections

.text
Size: 161KB - Virtual size: 161KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 95KB - Virtual size: 94KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 404B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.z_?
Size: 2.8MB - Virtual size: 2.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 953KB - Virtual size: 953KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

27c424952b768e04022e46d77de13bae

Code Sign

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

Extended Key Usages

Key Usages

08:b4:00:98:9a:7b:9f:0d:6e:71:be:74:94:b3:32:e1Certificate

Extended Key Usages

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

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

b3:bb:7b:c0:46:7f:81:22:ed:6e:a0:04:05:c5:90:1d:b0:59:e1:a9:54:4f:42:dd:5a:ad:fa:52:79:ee:ef:8dSigner

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

shell32

advapi32

shlwapi

Sections

.text Size: 161KB - Virtual size: 161KB

.rdata Size: 95KB - Virtual size: 94KB

.data Size: 5KB - Virtual size: 13KB

.pdata Size: 10KB - Virtual size: 9KB

.gfids Size: 512B - Virtual size: 404B

.tls Size: 512B - Virtual size: 9B

.z_? Size: 2.8MB - Virtual size: 2.8MB

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

.rsrc Size: 953KB - Virtual size: 953KB

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

08:b4:00:98:9a:7b:9f:0d:6e:71:be:74:94:b3:32:e1
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
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

b3:bb:7b:c0:46:7f:81:22:ed:6e:a0:04:05:c5:90:1d:b0:59:e1:a9:54:4f:42:dd:5a:ad:fa:52:79:ee:ef:8d
Signer

.text
Size: 161KB - Virtual size: 161KB

.rdata
Size: 95KB - Virtual size: 94KB

.data
Size: 5KB - Virtual size: 13KB

.pdata
Size: 10KB - Virtual size: 9KB

.gfids
Size: 512B - Virtual size: 404B

.tls
Size: 512B - Virtual size: 9B

.z_?
Size: 2.8MB - Virtual size: 2.8MB

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

.rsrc
Size: 953KB - Virtual size: 953KB