2024-06-04_d278cd83d3309db54216ad9030248d21_ryuk

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General

Target

2024-06-04_d278cd83d3309db54216ad9030248d21_ryuk
Size

1.6MB
MD5

d278cd83d3309db54216ad9030248d21
SHA1

8cee8a281de89301e71966072fdee9aefea1db02
SHA256

b99f2f4d7d07e03d9b579bd8fdf265d6fb5adb990ef6a21d46408a358d014ce4
SHA512

533c50fa7e8570c57bacd648d1d193b085d3245f479a53bab82c242d82720f4423aa5e918d6637d5a739d19f6dcd4ba0eee4e8c5d5c46d1130c009d0968ef78c
SSDEEP

24576:0AtTREz3b4sR4ar0dbBshq+zdhEYDXoYQEvaSnIocxmlkxSIhnhy4r+J:0AOzL4sR4whq+zdh9DPQ5UIocGIBhG

Score

1^/10

Malware Config

Signatures

Files

2024-06-04_d278cd83d3309db54216ad9030248d21_ryuk
.exe windows:5 windows x64 arch:x64

fd00ed185940b8041251daf1c63b2548

Code Sign

4a:97:11:c5:37:c4:41:d3:c1:6d:6e:24:af:09:10:27
Certificate

Issuer

CN=WoSign Class 3 Code Signing CA,O=WoSign CA Limited,C=CN

Not Before

10/02/2017, 08:12

Not After

10/04/2018, 08:12

Subject

CN=北京杰思安全科技有限公司,O=北京杰思安全科技有限公司,L=北京市,ST=北京市,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning
ExtKeyUsageMicrosoftCommercialCodeSigning

Key Usages

KeyUsageDigitalSignature

25:1f:5d:98:81:82:17:2e:3c:41:9e:01:4f:b0:40:4c
Certificate

Issuer

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Not Before

08/08/2009, 01:00

Not After

08/08/2024, 01:00

Subject

CN=WoSign Time Stamping Signer,O=WoSign CA Limited,C=CN

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

5e:68:d6:11:71:94:63:50:56:00:68:f3:3e:c9:c5:91
Certificate

Issuer

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Not Before

08/08/2009, 01:00

Not After

08/08/2039, 01:00

Subject

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

46:bb:b3:40:fa:b9:c1:79:28:93:8c:93:da:10:86:79
Certificate

Issuer

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Not Before

08/08/2009, 01:00

Not After

08/08/2024, 01:00

Subject

CN=WoSign Class 3 Code Signing CA,O=WoSign CA Limited,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning
ExtKeyUsageMicrosoftCommercialCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

19:c2:85:30:e9:3b:36
Certificate

Issuer

CN=StartCom Certification Authority,OU=Secure Digital Certificate Signing,O=StartCom Ltd.,C=IL

Not Before

17/09/2006, 22:46

Not After

31/12/2019, 23:59

Subject

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

3a:de:c4:02:27:0b:f4:ee:9e:89:2c:c6:5e:0a:da:21
Certificate

Issuer

CN=CA 沃通根证书,O=WoSign CA Limited,C=CN

Not Before

10/07/2015, 00:58

Not After

10/07/2025, 00:58

Subject

CN=CA 沃通 EV 代码签名证书,O=WoSign CA Limited,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

38:22:db:95:d0:97:c9:3e:ab:df:c4:57:7e:5e:96:80
Certificate

Issuer

CN=CA 沃通 EV 代码签名证书,O=WoSign CA Limited,C=CN

Not Before

10/02/2017, 08:03

Not After

10/04/2018, 08:03

Subject

SERIALNUMBER=91110106355250957F,CN=北京杰思安全科技有限公司,O=北京杰思安全科技有限公司,POSTALCODE=100070,STREET=北京市丰台区南三环西路91号院1号楼201-296,L=北京市,ST=北京市,C=CN,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.1=#13074265696a696e67,1.3.6.1.4.1.311.60.2.1.2=#13074265696a696e67,1.3.6.1.4.1.311.60.2.1.3=#1302434e

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

6a:0f:db:e6:78:b3:1e:23:2c:ba:5a:e1:4d:9d:bf:1b
Certificate

Issuer

CN=WoSign Time Stamping Services CA G2,O=WoSign CA Limited,C=CN

Not Before

08/04/2015, 01:00

Not After

08/04/2023, 01:00

Subject

CN=WoSign Time Stamping Signer G2,O=WoSign CA Limited,C=CN

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

5e:68:d6:11:71:94:63:50:56:00:68:f3:3e:c9:c5:91
Certificate

Issuer

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Not Before

08/08/2009, 01:00

Not After

08/08/2039, 01:00

Subject

CN=Certification Authority of WoSign,O=WoSign CA Limited,C=CN

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

c1:d4:ee:76:66:1b:5b:ff:ac:18:94:14:d4:b4:ba:6d:5f:87:92:ce:22:5b:e7:eb:ea:ab:c8:dc:7e:e5:c3:c8
Signer

Actual PE Digest

c1:d4:ee:76:66:1b:5b:ff:ac:18:94:14:d4:b4:ba:6d:5f:87:92:ce:22:5b:e7:eb:ea:ab:c8:dc:7e:e5:c3:c8

Digest Algorithm

sha256

PE Digest Matches

true

68:7b:2c:57:89:4c:89:c3:f2:d8:f2:76:3a:b8:bc:fd:db:e9:2e:d1
Signer

Actual PE Digest

68:7b:2c:57:89:4c:89:c3:f2:d8:f2:76:3a:b8:bc:fd:db:e9:2e:d1

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

PDB Paths

C:\Perforce\cm_meap_win7_agent_2_8_6\agent\x64\Release\MajorSecAgent.pdb

Imports

libcurl

curl_slist_free_all
curl_easy_cleanup
curl_easy_init
curl_global_init
curl_global_cleanup
curl_slist_append
curl_easy_strerror
curl_easy_perform
curl_easy_getinfo
curl_easy_setopt

kernel32

GetLocaleInfoW
GetSystemDirectoryW
GetFileTime
GetFileSizeEx
ExpandEnvironmentStringsW
GetFileAttributesW
SearchPathW
FindFirstFileW
FindNextFileW
FindClose
GetEnvironmentVariableW
LoadLibraryW
GetProcAddress
FreeLibrary
OpenProcess
IsWow64Process
GetNativeSystemInfo
VirtualQueryEx
GetLogicalDriveStringsW
QueryDosDeviceW
GetModuleHandleW
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
Module32FirstW
Module32NextW
InitializeCriticalSection
DeleteCriticalSection
GetSystemWindowsDirectoryW
GetModuleFileNameW
TerminateProcess
LocalFree
FormatMessageW
GetTickCount
OpenEventW
ResetEvent
SetEvent
WaitForSingleObject
CreateEventW
CreateNamedPipeW
ConnectNamedPipe
FlushFileBuffers
DisconnectNamedPipe
WriteFile
ReadFile
GetProcessId
ReadProcessMemory
HeapAlloc
GetProcessHeap
HeapFree
CreateProcessW
GetExitCodeProcess
GetCurrentProcessId
lstrcmpiW
CreateThread
GetEnvironmentStringsW
lstrlenW
FreeEnvironmentStringsW
GetWindowsDirectoryW
CreateFileMappingW
GetUserDefaultUILanguage
UnmapViewOfFile
GetTempPathW
CopyFileW
FindFirstFileExW
GetSystemInfo
GetCurrentThreadId
SetConsoleCtrlHandler
Sleep
SetLastError
GetCurrentProcess
CreateMutexW
GetStdHandle
SetConsoleTextAttribute
GetConsoleScreenBufferInfo
GetComputerNameW
WideCharToMultiByte
CloseHandle
GetLastError
GetFileInformationByHandle
CreateFileW
IsValidCodePage
GetOEMCP
GetCPInfo
SetEnvironmentVariableA
SetFilePointerEx
LCMapStringW
CompareStringW
GetTimeFormatW
GetDateFormatW
LoadLibraryExW
ExitProcess
VirtualAllocEx
GetStringTypeW
GetFileType
ReadConsoleW
GetConsoleMode
GetConsoleCP
GetTimeZoneInformation
GetACP
GetCommandLineW
GetCommandLineA
SuspendThread
SetFileAttributesW
GetModuleHandleExW
FreeLibraryAndExitThread
ExitThread
MoveFileExW
InitializeCriticalSectionAndSpinCount
RtlUnwindEx
LeaveCriticalSection
DeleteFileW
EnterCriticalSection
MultiByteToWideChar
MapViewOfFile
GetVersionExW
RaiseException
EncodePointer
RtlPcToFileHeader
GetSystemDirectoryA
CreateSemaphoreA
CreateEventA
TlsFree
TlsSetValue
ResumeThread
WriteProcessMemory
QueryPerformanceCounter
FormatMessageA
GetSystemTime
GetSystemTimeAsFileTime
SystemTimeToFileTime
GetFileSize
LockFileEx
CreateFileMappingA
UnlockFile
HeapDestroy
HeapCompact
HeapReAlloc
DeleteFileA
GetVersionExA
WaitForSingleObjectEx
LoadLibraryA
CreateFileA
FlushViewOfFile
OutputDebugStringW
GetFileAttributesExW
GetFileAttributesA
GetDiskFreeSpaceA
GetTempPathA
HeapSize
HeapValidate
UnlockFileEx
SetEndOfFile
GetFullPathNameA
SetFilePointer
LockFile
OutputDebugStringA
GetDiskFreeSpaceW
GetFullPathNameW
HeapCreate
TryEnterCriticalSection
AreFileApisANSI
GetThreadContext
FlushInstructionCache
TlsGetValue
TlsAlloc
DuplicateHandle
WaitForMultipleObjects
ReleaseSemaphore
GetThreadPriority
SetThreadPriority
GetCurrentThread
InitializeSListHead
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetExitCodeThread
SetThreadContext
SetEnvironmentVariableW
SetStdHandle
WriteConsoleW
CreateRemoteThread
VirtualFreeEx
OpenThread

user32

GetSystemMetrics

advapi32

LookupPrivilegeValueW
AdjustTokenPrivileges
RegCloseKey
RegEnumKeyExW
RegOpenKeyExW
RegQueryValueExW
RegEnumValueW
RegDeleteKeyW
SetSecurityDescriptorSacl
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
FreeSid
InitializeAcl
GetSidLengthRequired
AllocateAndInitializeSid
RegQueryInfoKeyW
OpenProcessToken

ole32

CoTaskMemFree
CoUninitialize
CoInitializeEx
CoInitializeSecurity
StringFromGUID2
OleRun
CoSetProxyBlanket
CoCreateInstance

oleaut32

VariantInit
SysFreeString
SysAllocString
VariantClear
GetErrorInfo

ws2_32

bind
gethostbyaddr
closesocket
inet_ntoa
ioctlsocket
setsockopt
socket
htons
ntohs
recvfrom
select
sendto
inet_addr
WSAStartup
WSACleanup
WSACreateEvent
WSAGetLastError
recv

iphlpapi

SetTcpEntry
GetExtendedTcpTable
GetIpNetTable
GetAdaptersInfo
GetAdaptersAddresses
NotifyAddrChange

psapi

GetModuleFileNameExW
GetProcessImageFileNameW
GetMappedFileNameW

version

VerQueryValueW
GetFileVersionInfoW
GetFileVersionInfoSizeW

libeay32

ord493
ord484
ord492
ord224
ord227
ord223
ord66
ord246
ord2081
ord464
ord1882
ord2656
ord266
ord3067
ord3783
ord2660
ord276
ord2927
ord2894
ord3782
ord196
ord3765
ord3479
ord502
ord504
ord503
ord340
ord342
ord341
ord1804
ord197
ord3712

shlwapi

PathFindFileNameW
PathRemoveArgsW

wtsapi32

WTSWaitSystemEvent

zlib1

compress
uncompress

wintrust

WinVerifyTrust
CryptCATAdminEnumCatalogFromHash
CryptCATAdminCalcHashFromFileHandle
CryptCATAdminAcquireContext
CryptCATAdminReleaseCatalogContext
CryptCATAdminReleaseContext

imagehlp

ImageGetCertificateData
ImageGetCertificateHeader
ImageNtHeader
ImageEnumerateCertificates

crypt32

CertGetNameStringW
CertGetCertificateChain
CryptHashCertificate
CertFreeCertificateChain
CertFreeCertificateContext
CryptVerifyMessageSignature

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 240KB - Virtual size: 240KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 37KB - Virtual size: 54KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 55KB - Virtual size: 54KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 260B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 13B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ctors
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.dtors
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 213KB - Virtual size: 213KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

fd00ed185940b8041251daf1c63b2548

Code Sign

4a:97:11:c5:37:c4:41:d3:c1:6d:6e:24:af:09:10:27Certificate

Extended Key Usages

Key Usages

25:1f:5d:98:81:82:17:2e:3c:41:9e:01:4f:b0:40:4cCertificate

Extended Key Usages

Key Usages

5e:68:d6:11:71:94:63:50:56:00:68:f3:3e:c9:c5:91Certificate

Key Usages

46:bb:b3:40:fa:b9:c1:79:28:93:8c:93:da:10:86:79Certificate

Extended Key Usages

Key Usages

19:c2:85:30:e9:3b:36Certificate

Key Usages

3a:de:c4:02:27:0b:f4:ee:9e:89:2c:c6:5e:0a:da:21Certificate

Extended Key Usages

Key Usages

38:22:db:95:d0:97:c9:3e:ab:df:c4:57:7e:5e:96:80Certificate

Extended Key Usages

Key Usages

6a:0f:db:e6:78:b3:1e:23:2c:ba:5a:e1:4d:9d:bf:1bCertificate

Extended Key Usages

Key Usages

5e:68:d6:11:71:94:63:50:56:00:68:f3:3e:c9:c5:91Certificate

Key Usages

c1:d4:ee:76:66:1b:5b:ff:ac:18:94:14:d4:b4:ba:6d:5f:87:92:ce:22:5b:e7:eb:ea:ab:c8:dc:7e:e5:c3:c8Signer

68:7b:2c:57:89:4c:89:c3:f2:d8:f2:76:3a:b8:bc:fd:db:e9:2e:d1Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

libcurl

kernel32

user32

advapi32

ole32

oleaut32

ws2_32

iphlpapi

psapi

version

libeay32

shlwapi

wtsapi32

zlib1

wintrust

imagehlp

crypt32

Sections

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

.rdata Size: 240KB - Virtual size: 240KB

.data Size: 37KB - Virtual size: 54KB

.pdata Size: 55KB - Virtual size: 54KB

.gfids Size: 512B - Virtual size: 260B

.tls Size: 512B - Virtual size: 13B

.ctors Size: 512B - Virtual size: 8B

.dtors Size: 512B - Virtual size: 8B

.rsrc Size: 213KB - Virtual size: 213KB

.reloc Size: 4KB - Virtual size: 3KB

4a:97:11:c5:37:c4:41:d3:c1:6d:6e:24:af:09:10:27
Certificate

25:1f:5d:98:81:82:17:2e:3c:41:9e:01:4f:b0:40:4c
Certificate

5e:68:d6:11:71:94:63:50:56:00:68:f3:3e:c9:c5:91
Certificate

46:bb:b3:40:fa:b9:c1:79:28:93:8c:93:da:10:86:79
Certificate

19:c2:85:30:e9:3b:36
Certificate

3a:de:c4:02:27:0b:f4:ee:9e:89:2c:c6:5e:0a:da:21
Certificate

38:22:db:95:d0:97:c9:3e:ab:df:c4:57:7e:5e:96:80
Certificate

6a:0f:db:e6:78:b3:1e:23:2c:ba:5a:e1:4d:9d:bf:1b
Certificate

5e:68:d6:11:71:94:63:50:56:00:68:f3:3e:c9:c5:91
Certificate

c1:d4:ee:76:66:1b:5b:ff:ac:18:94:14:d4:b4:ba:6d:5f:87:92:ce:22:5b:e7:eb:ea:ab:c8:dc:7e:e5:c3:c8
Signer

68:7b:2c:57:89:4c:89:c3:f2:d8:f2:76:3a:b8:bc:fd:db:e9:2e:d1
Signer

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

.rdata
Size: 240KB - Virtual size: 240KB

.data
Size: 37KB - Virtual size: 54KB

.pdata
Size: 55KB - Virtual size: 54KB

.gfids
Size: 512B - Virtual size: 260B

.tls
Size: 512B - Virtual size: 13B

.ctors
Size: 512B - Virtual size: 8B

.dtors
Size: 512B - Virtual size: 8B

.rsrc
Size: 213KB - Virtual size: 213KB

.reloc
Size: 4KB - Virtual size: 3KB