2024-07-26_a8b89325fd8e69c2507b451b42879ac6_ryuk

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General

Target

2024-07-26_a8b89325fd8e69c2507b451b42879ac6_ryuk
Size

1.1MB
MD5

a8b89325fd8e69c2507b451b42879ac6
SHA1

cdd92272744d155c3f1c86db53539c732c32aa4a
SHA256

ac9ffb552e0a42ef0d1773f2a9dce8e947bc63110f435c2d898f54119cbfff4c
SHA512

76b881ef10026ee038911a2d2467a9631fae82c68527cea49643b18c4b6a81d07a4243ebc2fe9fd6353d53154289b3413a798a17f9c2f0ce730392b45ca91caf
SSDEEP

24576:EJYYBgQiVpT+tNeTJWdqyArO7jBytSYtoTfqafbD5OG:9YBgQiVp6MJWdq0PBASooTCafbD5

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-07-26_a8b89325fd8e69c2507b451b42879ac6_ryuk

Files

2024-07-26_a8b89325fd8e69c2507b451b42879ac6_ryuk
.exe windows:6 windows x64 arch:x64

cf75a24380513d61bfdb296ad2f7a1de

Headers

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

C:\projects\openssh-portable\bin\x64\Release\sshd.pdb

Imports

libcrypto

AES_set_encrypt_key
EVP_CIPHER_CTX_get_app_data
EVP_CIPHER_CTX_set_app_data
ECDH_compute_key
EC_POINT_clear_free
EVP_MD_CTX_cleanup
AES_encrypt
EC_GROUP_get_degree
DH_compute_key
DH_size
ECDSA_do_sign
ECDSA_SIG_free
ECDSA_do_verify
ECDSA_SIG_new
DSA_do_sign
DSA_do_verify
DSA_SIG_new
DSA_SIG_free
RSA_public_decrypt
RSA_sign
BN_div
RSA_size
BN_CTX_new
BN_CTX_free
RAND_status
SSLeay
EVP_CIPHER_CTX_key_length
EVP_CIPHER_CTX_new
EVP_aes_256_cbc
EVP_CIPHER_CTX_iv_length
EVP_CipherInit
EVP_des_ede3_cbc
EVP_aes_192_cbc
EVP_CIPHER_CTX_ctrl
EVP_CIPHER_CTX_set_key_length
EVP_Cipher
EVP_aes_256_gcm
EVP_aes_128_gcm
EVP_CIPHER_CTX_free
EC_POINT_oct2point
BN_bn2bin
EC_POINT_point2oct
BN_bin2bn
BN_is_bit_set
BN_hex2bn
DH_new
DH_generate_key
EVP_sha384
EVP_MD_CTX_copy_ex
EVP_md5
EVP_sha256
EVP_DigestUpdate
EVP_Digest
EVP_DigestInit_ex
EVP_MD_CTX_md
EVP_sha1
EVP_MD_block_size
EVP_sha512
EVP_DigestFinal_ex
RSA_blinding_on
BN_dup
EC_GROUP_get_order
DSA_free
BIO_new
EC_POINT_cmp
BN_clear_free
ERR_peek_error
EC_KEY_set_private_key
BN_value_one
EVP_PKEY_get1_EC_KEY
EC_METHOD_get_field_type
EC_POINT_mul
RSA_new
EC_KEY_generate_key
RSA_free
ERR_get_error
EC_POINT_get_affine_coordinates_GFp
ERR_peek_last_error
EC_KEY_set_public_key
BN_free
EC_KEY_set_group
EC_POINT_is_at_infinity
BIO_s_mem
PEM_read_bio_PrivateKey
EC_POINT_free
EVP_aes_128_cbc
EC_KEY_free
EVP_PKEY_free
EVP_PKEY_get1_RSA
EC_KEY_get0_public_key
EC_GROUP_free
DSA_new
EC_POINT_new
BIO_write
BIO_free
EC_GROUP_cmp
EVP_PKEY_get1_DSA
EC_GROUP_set_asn1_flag
EC_GROUP_get_curve_name
BN_new
EC_KEY_get0_private_key
EC_KEY_get0_group
BN_cmp
BN_sub
EC_GROUP_new_by_curve_name
EVP_PKEY_base_id
EC_GROUP_method_of
EC_KEY_new_by_curve_name
BN_num_bits
RAND_poll
SSLeay_version
RAND_seed
RAND_bytes
DH_free

userenv

LoadUserProfileW

crypt32

CryptBinaryToStringA
CryptStringToBinaryA

ws2_32

getservbyname
htonl
htons
FreeAddrInfoW
bind
WSAIoctl
WSASend
shutdown
listen
WSAStartup
inet_ntoa
ntohs
socket
gethostname
GetAddrInfoW
WSARecv
getsockopt
WSAGetOverlappedResult
setsockopt
closesocket
WSADuplicateSocketW
WSASocketW
WSAGetLastError
getnameinfo
getsockname
inet_ntop
ntohl
getpeername

secur32

InitSecurityInterfaceW
FreeContextBuffer
LsaFreeReturnBuffer
LsaLookupAuthenticationPackage
LsaLogonUser
LsaDeregisterLogonProcess
LsaRegisterLogonProcess
LsaConnectUntrusted

kernel32

PeekNamedPipe
GetCommandLineW
GetCommandLineA
DeleteFileW
GetFullPathNameW
SetFileAttributesW
GetStringTypeW
RemoveDirectoryW
SetStdHandle
GetCurrentDirectoryW
SetCurrentDirectoryW
SetEnvironmentVariableA
GetModuleHandleExW
ExitProcess
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
SystemTimeToTzSpecificLocalTime
LeaveCriticalSection
EnterCriticalSection
SetLastError
RtlUnwindEx
GetModuleHandleW
GetStartupInfoW
IsDebuggerPresent
InitializeSListHead
QueryPerformanceCounter
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindNextFileW
CreateThread
ExitThread
FreeLibraryAndExitThread
GetModuleFileNameW
GetACP
CreateProcessA
HeapFree
HeapAlloc
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetTimeZoneInformation
HeapReAlloc
ReadConsoleW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
HeapSize
FormatMessageA
CancelIoEx
CancelSynchronousIo
WriteFile
ReadFile
WaitForSingleObjectEx
WaitForMultipleObjectsEx
GetDriveTypeW
GetDiskFreeSpaceExW
RaiseException
GetLocalTime
DeleteCriticalSection
GetLogicalDriveStringsW
ReadFileEx
GetFileAttributesExW
GetFileInformationByHandle
WriteFileEx
DeviceIoControl
CreateNamedPipeA
CancelIo
ReadConsoleOutputA
SetConsoleCursorPosition
GetConsoleWindow
Beep
WriteConsoleW
FillConsoleOutputAttribute
WriteConsoleOutputA
CreateFileA
ReadConsoleInputW
SetConsoleCursorInfo
GetConsoleMode
SetConsoleWindowInfo
GetConsoleCP
GetConsoleCursorInfo
ScrollConsoleScreenBufferA
SetConsoleScreenBufferSize
SetConsoleTextAttribute
FillConsoleOutputCharacterA
LoadLibraryExW
MultiByteToWideChar
CreateWaitableTimerA
CancelWaitableTimer
QueueUserAPC
SetConsoleCtrlHandler
GetExitCodeProcess
GetLastError
CloseHandle
GetComputerNameW
WaitForSingleObject
GetFileAttributesW
CreateProcessW
CopyFileW
SetInformationJobObject
GetCurrentProcess
ExpandEnvironmentStringsW
AssignProcessToJobObject
TerminateProcess
SetEnvironmentVariableW
CreateJobObjectW
GetEnvironmentVariableW
DuplicateHandle
OpenProcess
SetConsoleMode
CreateDirectoryW
SetWaitableTimer
GetConsoleScreenBufferInfo
GetStdHandle
CreateWaitableTimerW
CreateFileW
Sleep
LoadLibraryW
GetProcAddress
LocalFree
FreeLibrary
WideCharToMultiByte
GetSystemTimeAsFileTime
GetFileType
GetFinalPathNameByHandleW
GetCurrentProcessId
SetHandleInformation
SetEndOfFile
GetCurrentThreadId
GetTickCount64
SetFilePointerEx
OpenThread
FlushFileBuffers
SetEvent
ResetEvent
VerSetConditionMask
SleepEx
VerifyVersionInfoW
CreateEventA
GetSystemDirectoryW
GetWindowsDirectoryW
GetSystemTime

user32

GetWindowPlacement
ShowWindow

advapi32

EventWrite
EventRegister
ConvertSidToStringSidA
ConvertSidToStringSidW
GetTokenInformation
GetSidIdentifierAuthority
LookupAccountSidW
CheckTokenMembership
IsValidSid
ConvertStringSecurityDescriptorToSecurityDescriptorW
StartServiceCtrlDispatcherW
RegisterServiceCtrlHandlerW
RegCreateKeyExW
SetServiceStatus
RegCloseKey
RegEnumValueW
RegOpenKeyExW
LookupAccountNameW
IsValidAcl
GetLengthSid
OpenProcessToken
IsValidSecurityDescriptor
IsWellKnownSid
GetNamedSecurityInfoW
CopySid
CreateWellKnownSid
GetAce
RegQueryValueExW
DuplicateToken
FreeSid
CreateRestrictedToken
LookupPrivilegeValueA
AllocateAndInitializeSid
EqualSid
AllocateLocallyUniqueId
AdjustTokenPrivileges
LsaManageSidNameMapping
CreateProcessAsUserW

Sections

.text
Size: 725KB - Virtual size: 725KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 318KB - Virtual size: 318KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 7KB - Virtual size: 193KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 36KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

cf75a24380513d61bfdb296ad2f7a1de

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

libcrypto

userenv

crypt32

ws2_32

secur32

kernel32

user32

advapi32

Sections

.text Size: 725KB - Virtual size: 725KB

.rdata Size: 318KB - Virtual size: 318KB

.data Size: 7KB - Virtual size: 193KB

.pdata Size: 36KB - Virtual size: 35KB

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

.reloc Size: 3KB - Virtual size: 2KB

.text
Size: 725KB - Virtual size: 725KB

.rdata
Size: 318KB - Virtual size: 318KB

.data
Size: 7KB - Virtual size: 193KB

.pdata
Size: 36KB - Virtual size: 35KB

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

.reloc
Size: 3KB - Virtual size: 2KB