2024-03-25_38bf23a4d7d9ed043eaeb4c27a2c5d80_ryuk

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General

Target

2024-03-25_38bf23a4d7d9ed043eaeb4c27a2c5d80_ryuk
Size

561KB
MD5

38bf23a4d7d9ed043eaeb4c27a2c5d80
SHA1

eaa32281840ac403db00ed31c476348e553ffff5
SHA256

f1836c040c3fdef66b2ee6388bafca67883f41271bd0a5934155663f35c589cf
SHA512

10d438fe22b4fad4ce56165c126afe6b980d1a4a1c3c57711122323f490a0d4119d3e6156b16d2bf28962983e448ae4f4f3023ed69501631849eb243b02a786a
SSDEEP

6144:BqkOvWmHPHJsgk/8AC4eoyYbDNyOohlqpToQ4NY6Vkq94:BqXJHPphk8HoLNvouX4Spe4

Score

1^/10

Malware Config

Signatures

Files

2024-03-25_38bf23a4d7d9ed043eaeb4c27a2c5d80_ryuk
.exe windows:5 windows x64 arch:x64

61759bb2ea83a104326608c71c469bfd

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

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

Not Before

22/10/2013, 12:00

Not After

22/10/2028, 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

03:6a:f9:5e:02:ce:45:d3:5f:44:51:1e:61:c6:ce:d6
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/12/2020, 00:00

Not After

02/01/2024, 23:59

Subject

CN=NetEase (Hangzhou) Network Co.\, Ltd,O=NetEase (Hangzhou) Network Co.\, Ltd,L=Hangzhou,ST=Zhejiang,C=CN

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

c0:07:64:0f:3d:3d:ea:52:90:c8:6b:87:6f:0a:75:d2:63:0b:0f:72:f4:a1:dc:14:bf:3f:ec:4c:70:7c:5b:b2
Signer

Actual PE Digest

c0:07:64:0f:3d:3d:ea:52:90:c8:6b:87:6f:0a:75:d2:63:0b:0f:72:f4:a1:dc:14:bf:3f:ec:4c:70:7c:5b:b2

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

PDB Paths

F:\Desktop\code\mpay-pc-webview-support\bin_x64\Release\netease.mpay.webviewsupport.cef904430\render.pdb

Imports

libcef

cef_string_multimap_alloc
cef_string_multimap_free
cef_string_multimap_append
cef_string_multimap_value
cef_string_multimap_key
cef_string_multimap_size
cef_string_map_append
cef_string_map_value
cef_string_map_key
cef_string_map_size
cef_string_list_append
cef_string_list_value
cef_string_list_size
cef_v8value_create_function
cef_v8value_create_string
cef_v8value_create_int
cef_v8value_create_bool
cef_v8context_get_current_context
cef_process_message_create
cef_execute_process
cef_post_task
cef_api_hash
cef_command_line_create
cef_string_map_free
cef_string_map_alloc
cef_string_list_free
cef_string_list_alloc
cef_string_userfree_utf16_free
cef_string_utf16_cmp
cef_log
cef_string_utf16_set
cef_string_utf8_clear
cef_string_utf8_to_utf16
cef_string_utf16_to_utf8
cef_string_utf16_clear

kernel32

CreateFileW
FlushFileBuffers
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapSize
SetStdHandle
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
GetProcessHeap
GetFileType
GetACP
GetModuleHandleExW
ExitProcess
GetModuleFileNameW
WriteFile
GetStdHandle
HeapReAlloc
HeapFree
HeapAlloc
LoadLibraryExW
FreeLibrary
RtlUnwindEx
RaiseException
RtlPcToFileHeader
GetStartupInfoW
IsDebuggerPresent
InitializeSListHead
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CloseHandle
GetCPInfo
GetStringTypeW
LCMapStringW
GetProcAddress
GetSystemTimeAsFileTime
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
CreateEventW
InitializeCriticalSectionAndSpinCount
DecodePointer
EncodePointer
MultiByteToWideChar
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
WideCharToMultiByte
SetLastError
GetLastError
GetModuleHandleW
GetCommandLineW
WriteConsoleW

Sections

.text
Size: 320KB - Virtual size: 319KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 176KB - Virtual size: 175KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 24KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 284B

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

.rsrc
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

61759bb2ea83a104326608c71c469bfd

Code Sign

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

03:6a:f9:5e:02:ce:45:d3:5f:44:51:1e:61:c6:ce:d6Certificate

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

c0:07:64:0f:3d:3d:ea:52:90:c8:6b:87:6f:0a:75:d2:63:0b:0f:72:f4:a1:dc:14:bf:3f:ec:4c:70:7c:5b:b2Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

libcef

kernel32

Sections

.text Size: 320KB - Virtual size: 319KB

.rdata Size: 176KB - Virtual size: 175KB

.data Size: 4KB - Virtual size: 9KB

.pdata Size: 24KB - Virtual size: 24KB

.gfids Size: 512B - Virtual size: 284B

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

.rsrc Size: 19KB - Virtual size: 18KB

.reloc Size: 7KB - Virtual size: 6KB

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

03:6a:f9:5e:02:ce:45:d3:5f:44:51:1e:61:c6:ce:d6
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

c0:07:64:0f:3d:3d:ea:52:90:c8:6b:87:6f:0a:75:d2:63:0b:0f:72:f4:a1:dc:14:bf:3f:ec:4c:70:7c:5b:b2
Signer

.text
Size: 320KB - Virtual size: 319KB

.rdata
Size: 176KB - Virtual size: 175KB

.data
Size: 4KB - Virtual size: 9KB

.pdata
Size: 24KB - Virtual size: 24KB

.gfids
Size: 512B - Virtual size: 284B

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

.rsrc
Size: 19KB - Virtual size: 18KB

.reloc
Size: 7KB - Virtual size: 6KB