2024-02-28_a1cceb3045e7a0b19b90dae6cab51006_ryuk

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General

Target

2024-02-28_a1cceb3045e7a0b19b90dae6cab51006_ryuk
Size

4.7MB
MD5

a1cceb3045e7a0b19b90dae6cab51006
SHA1

52acb2afd650b89666ee6d18009bf419d7dbf4ef
SHA256

1f5336c628dc5103a99f7b264a8f106240e46d72ad97ef68206c64b41841a3ce
SHA512

f249b6237b007eac738221e864bd091eb53b26f4c8a1f4448d06f3940eb8fcf70ee457304b8ae67a4dba3f7c0002920fc2f5e2211141c16c39023afecb92445e
SSDEEP

49152:9PIPnBZ7V3H1JmY4lhLy9BykeRROlxrS/Bizlq01fXO3s0dFz0kIk5tZnNs4T3Bd:REfR31NetRISBN0RXOrd9P1x1UHPC

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-02-28_a1cceb3045e7a0b19b90dae6cab51006_ryuk

Files

2024-02-28_a1cceb3045e7a0b19b90dae6cab51006_ryuk
.exe windows:6 windows x64 arch:x64

11395ce9ebb98ecc51d9eb1d4de0cc2c

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

AcquireSRWLockExclusive
AcquireSRWLockShared
Beep
CloseHandle
CompareStringW
CreateDirectoryW
CreateFileA
CreateFileW
CreateMutexW
CreateProcessA
CreateToolhelp32Snapshot
DeleteCriticalSection
EncodePointer
EnterCriticalSection
ExitProcess
FileTimeToSystemTime
FindClose
FindFirstFileExW
FindFirstFileW
FindNextFileW
FindResourceA
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeResource
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryA
GetSystemTimeAsFileTime
GetTickCount64
GetTimeZoneInformation
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LoadLibraryW
LoadResource
LockResource
MultiByteToWideChar
PeekNamedPipe
Process32First
Process32Next
QueryPerformanceCounter
RaiseException
ReadConsoleA
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetConsoleCtrlHandler
SetConsoleMode
SetCurrentDirectoryA
SetEndOfFile
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
SizeofResource
Sleep
SystemTimeToTzSpecificLocalTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
VirtualFree
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiA

user32

GetProcessWindowStation
GetUserObjectInformationW
MessageBoxA
MessageBoxW

advapi32

CryptAcquireContextW
CryptCreateHash
CryptDecrypt
CryptDestroyHash
CryptDestroyKey
CryptEnumProvidersW
CryptExportKey
CryptGetProvParam
CryptGetUserKey
CryptReleaseContext
CryptSetHashParam
CryptSignHashW
DeregisterEventSource
RegisterEventSourceW
ReportEventW

crypt32

CertCloseStore
CertDuplicateCertificateContext
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateContext
CertGetCertificateContextProperty
CertOpenStore

ws2_32

WSACleanup
WSAGetLastError
WSASetLastError
WSAStartup
closesocket
connect
gethostbyaddr
gethostbyname
getservbyname
getservbyport
getsockopt
htonl
htons
inet_addr
inet_ntoa
ioctlsocket
ntohs
recv
select
send
setsockopt
shutdown
socket

bcrypt

BCryptGenRandom

Sections

.text
Size: 2.8MB - Virtual size: 2.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 748KB - Virtual size: 748KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 15KB - Virtual size: 93KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 34KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

11395ce9ebb98ecc51d9eb1d4de0cc2c

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

crypt32

ws2_32

bcrypt

Sections

.text Size: 2.8MB - Virtual size: 2.8MB

.rdata Size: 748KB - Virtual size: 748KB

.data Size: 15KB - Virtual size: 93KB

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

.00cfg Size: 512B - Virtual size: 56B

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

.retplne Size: 512B - Virtual size: 140B

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 1.1MB - Virtual size: 1.1MB

.reloc Size: 34KB - Virtual size: 34KB

.text
Size: 2.8MB - Virtual size: 2.8MB

.rdata
Size: 748KB - Virtual size: 748KB

.data
Size: 15KB - Virtual size: 93KB

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

.00cfg
Size: 512B - Virtual size: 56B

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

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

.reloc
Size: 34KB - Virtual size: 34KB