meshagent | 2025-02-07_b3ecc7efd2d66d78158f20cb61a9c285_ismagent_ryuk_sliver

Sharing

Copy URL

Twitter E-mail

General

Target

2025-02-07_b3ecc7efd2d66d78158f20cb61a9c285_ismagent_ryuk_sliver
Size

3.3MB
MD5

b3ecc7efd2d66d78158f20cb61a9c285
SHA1

29bcd79250c07d529ec41fac6d494c65edd8da76
SHA256

a38066fc781d3d7dd12f6488795fd72b3b5a6b8396697670bc3b94c06dafd5c0
SHA512

f370f6a82e495528bfafa1c5c70c8d2ead4052da4ef5d4a8cc248517575a9440c2dfae10d06627dd1b5157e53bba23e165bb3e33f0937d082273d10191202525
SSDEEP

49152:AX3YnLOQYsZfQ74C6SkgSbXP31+frjUYuHi7nT8poTMFvfuJ1kZ7NrjHQex5:AlRsZ47/QXoHUOfAoj18

Score

10^/10

admin meshagent

Malware Config

Extracted

Family

meshagent

Version

Botnet

admin

Attributes

mesh_id
0x2F18A07DA697567A05E81893AE87B5D9E780FA4797BAAC6EE40728F88DCBA51ACBF7AC3F6C1A0C705F9F2A7F3C5D97DE
server_id
AC4D41EE751A5246C1DECBCAD3D4836C09EF7444AF4CAD0F1416B89654E9B4ECC52E53C9B4A361D1BF40EB929F88E4C4
wss
localhost

Signatures

Detects MeshAgent payload 1 IoCs

resource	yara_rule
sample	family_meshagent

Meshagent family
meshagent

Files

2025-02-07_b3ecc7efd2d66d78158f20cb61a9c285_ismagent_ryuk_sliver
.exe windows:6 windows x64 arch:x64

fb0a8b4a81655f744a37af985e009476

Code Sign

33:00:00:04:13:31:bc:19:88:07:a9:07:74:00:00:00:00:04:13
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

03-02-2023 00:05

Not After

01-02-2024 00:05

Subject

CN=Microsoft Windows,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19-10-2011 18:41

Not After

19-10-2026 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

83:42:43:76:a2:86:04:48:93:d9:77:e1:d8:19:93:9c:c3:9b:03:eb:7a:88:d6:a0:56:44:df:66:4c:96:f9:4f
Signer

Actual PE Digest

83:42:43:76:a2:86:04:48:93:d9:77:e1:d8:19:93:9c:c3:9b:03:eb:7a:88:d6:a0:56:44:df:66:4c:96:f9:4f

Digest Algorithm

sha256

PE Digest Matches

false

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:\MeshAgent\MeshAgent\Release\MeshService64.pdb

Imports

comctl32

InitCommonControlsEx

dbghelp

SymInitialize
SymGetModuleBase64
SymGetLineFromAddr64
SymFunctionTableAccess64
SymFromAddr
StackWalk64
MiniDumpWriteDump

iphlpapi

GetAdaptersAddresses
SendARP
ConvertLengthToIpv4Mask
GetAdaptersInfo

ws2_32

WSACloseEvent
htons
htonl
gethostname
ntohs
ntohl
WSAGetLastError
ioctlsocket
recv
WSASetLastError
send
getsockname
WSASocketW
listen
closesocket
bind
accept
__WSAFDIsSet
setsockopt
socket
sendto
getsockopt
recvfrom
connect
shutdown
WSAIoctl
GetAddrInfoW
WSAResetEvent
WSAEventSelect
WSAStartup
WSACreateEvent
WSACleanup
FreeAddrInfoW
select

crypt32

CertFindCertificateInStore
CertDuplicateCertificateContext
CertDeleteCertificateFromStore
CryptAcquireCertificatePrivateKey
CertAddEncodedCertificateToStore
CryptMsgClose
CryptMsgUpdate
CryptExportPublicKeyInfo
CertCreateSelfSignCertificate
CertFreeCertificateContext
CryptMsgOpenToEncode
CertAddCertificateContextToStore
PFXExportCertStore
CryptSignAndEncodeCertificate
CertCloseStore
CertStrToNameA
CryptMsgGetParam
CryptEncodeObject
CertSetCertificateContextProperty
CertGetCertificateContextProperty
CryptMsgCalculateEncodedLength
CertOpenStore
CertStrToNameW
CertEnumCertificatesInStore

gdiplus

GdipGetImageEncoders
GdiplusShutdown
GdipCloneImage
GdipAlloc
GdipDisposeImage
GdipFree
GdipGetImageEncodersSize
GdipLoadImageFromStream
GdipSaveImageToStream
GdiplusStartup

ncrypt

NCryptCreatePersistedKey
NCryptFreeObject
NCryptSetProperty
BCryptCloseAlgorithmProvider
BCryptGenRandom
NCryptOpenStorageProvider
BCryptOpenAlgorithmProvider
NCryptFinalizeKey

kernel32

InitializeSListHead
GetStartupInfoW
RtlUnwindEx
GetFullPathNameW
GetStdHandle
WriteFile
LoadLibraryExA
GetModuleFileNameW
GetSystemPowerStatus
OpenProcess
MultiByteToWideChar
Sleep
GetLastError
CloseHandle
GetCurrentDirectoryW
SetCurrentDirectoryW
GetProcAddress
SetEnvironmentVariableA
CreateProcessW
FreeLibrary
WideCharToMultiByte
GetCurrentThreadId
GetModuleHandleA
WaitForSingleObjectEx
CreateThread
QueueUserAPC
OpenThread
ReadFile
LoadLibraryA
SleepEx
SetSystemPowerState
GetCurrentProcess
SetThreadExecutionState
HeapFree
HeapAlloc
GetProcessHeap
SystemTimeToFileTime
GetSystemTime
FileTimeToSystemTime
SystemTimeToTzSpecificLocalTime
QueryPerformanceCounter
ReleaseSemaphore
WaitForSingleObject
CreateSemaphoreA
CancelIo
FindFirstFileW
FindNextFileW
RemoveDirectoryW
GetFinalPathNameByHandleW
GetDriveTypeA
SetFilePointer
FindFirstVolumeA
FindClose
CreateFileW
GetVolumePathNamesForVolumeNameA
GetFileAttributesExW
ReadDirectoryChangesW
FindNextVolumeA
FindVolumeClose
GetDiskFreeSpaceExA
CreateEventA
GetModuleHandleExA
WaitForMultipleObjectsEx
CreateNamedPipeA
DisconnectNamedPipe
CreateFileA
CancelIoEx
LocalFree
ConnectNamedPipe
SetConsoleMode
GetConsoleMode
SetConsoleOutputCP
IsDebuggerPresent
TerminateProcess
GetTempPathW
CancelSynchronousIo
SetEvent
ResetEvent
IsProcessorFeaturePresent
GetCurrentProcessId
GetEnvironmentStrings
FreeEnvironmentStringsA
CopyFileW
RtlCaptureContext
SuspendThread
ResumeThread
DuplicateHandle
GetTickCount64
GetCurrentThread
GetOverlappedResult
GetThreadContext
WTSGetActiveConsoleSessionId
GetExitCodeProcess
SetEndOfFile
DeleteFileW
SetFilePointerEx
SetConsoleCtrlHandler
FreeConsole
LoadLibraryExW
SetLastError
GetFileType
GetModuleHandleW
SwitchToFiber
DeleteFiber
CreateFiber
GetSystemTimeAsFileTime
ConvertFiberToThread
ConvertThreadToFiber
GetEnvironmentVariableW
ReadConsoleA
ReadConsoleW
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
ExitProcess
GetModuleHandleExW
CreateDirectoryW
GetConsoleCP
MoveFileExW
SetEnvironmentVariableW
GetTimeZoneInformation
SetStdHandle
GetDriveTypeW
PeekNamedPipe
GetCommandLineA
GetCommandLineW
GetACP
GetDateFormatW
GetTimeFormatW
CompareStringW
LCMapStringW
GetStringTypeW
HeapReAlloc
FlushFileBuffers
WriteConsoleW
GetCPInfo
FindFirstFileExW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlLookupFunctionEntry
GetThreadId
RtlVirtualUnwind
IsValidCodePage
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
RaiseException
HeapSize
RtlPcToFileHeader
QueryPerformanceFrequency
EncodePointer

user32

EndDialog
SetWindowTextW
GetWindowPlacement
ShowWindow
GetDlgCtrlID
SetWindowPlacement
SetWindowTextA
IsDlgButtonChecked
GetDlgItem
CheckDlgButton
DialogBoxParamW
EnableWindow
MessageBeep
ExitWindowsEx
GetUserObjectInformationA
EnumDisplayMonitors
GetSystemMetrics
SetThreadDesktop
GetThreadDesktop
CloseDesktop
BlockInput
GetMonitorInfoA
OpenInputDesktop
GetKeyState
GetMessageA
GetMessageExtraInfo
SendMessageW
LoadCursorA
DestroyWindow
GetDC
PostMessageA
GetIconInfo
CallNextHookEx
GetCursorInfo
SetWindowsHookExA
MapVirtualKeyA
GetForegroundWindow
UnhookWindowsHookEx
DefWindowProcA
CreateWindowExA
TranslateMessage
UnregisterClassA
DrawIconEx
SetWinEventHook
RegisterClassExA
UnhookWinEvent
SetForegroundWindow
ReleaseDC
SendInput
SetProcessDPIAware
MessageBoxW
GetUserObjectInformationW
GetProcessWindowStation
DispatchMessageA
CreateWindowExW
GetWindowRect

gdi32

SetBkMode
SetBkColor
CreateSolidBrush
BitBlt
StretchBlt
DeleteDC
SetStretchBltMode
CreateCompatibleBitmap
GetObjectA
SelectObject
CreateCompatibleDC
GetDIBits
DeleteObject
SetTextColor
GetStockObject

advapi32

CloseServiceHandle
AllocateAndInitializeSid
CryptEnumProvidersW
CryptSignHashW
CryptDestroyHash
CryptCreateHash
CryptDecrypt
CryptExportKey
CryptGetUserKey
CryptGetProvParam
CryptSetHashParam
CryptAcquireContextW
ReportEventW
RegisterEventSourceW
DeregisterEventSource
StartServiceCtrlDispatcherA
RegCreateKeyW
RegSetValueExA
RegDeleteKeyA
RegCloseKey
RegOpenKeyExA
OpenProcessToken
InitiateSystemShutdownA
LookupPrivilegeValueA
AdjustTokenPrivileges
CryptReleaseContext
RegSetValueExW
CryptDestroyKey
InitializeSecurityDescriptor
SetEntriesInAclA
SetSecurityDescriptorDacl
DuplicateTokenEx
CreateProcessAsUserW
SetTokenInformation
OpenServiceA
CheckTokenMembership
FreeSid
RegisterServiceCtrlHandlerExA
OpenSCManagerA
SetServiceStatus
QueryServiceStatus

shell32

ShellExecuteExW

ole32

CoInitializeEx
CreateStreamOnHGlobal
CoUninitialize

Sections

.text
Size: 2.0MB - Virtual size: 2.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 981KB - Virtual size: 981KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 39KB - Virtual size: 201KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 102KB - Virtual size: 101KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 196B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 136KB - Virtual size: 135KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

fb0a8b4a81655f744a37af985e009476

Code Sign

33:00:00:04:13:31:bc:19:88:07:a9:07:74:00:00:00:00:04:13Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

83:42:43:76:a2:86:04:48:93:d9:77:e1:d8:19:93:9c:c3:9b:03:eb:7a:88:d6:a0:56:44:df:66:4c:96:f9:4fSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

comctl32

dbghelp

iphlpapi

ws2_32

crypt32

gdiplus

ncrypt

kernel32

user32

gdi32

advapi32

shell32

ole32

Sections

.text Size: 2.0MB - Virtual size: 2.0MB

.rdata Size: 981KB - Virtual size: 981KB

.data Size: 39KB - Virtual size: 201KB

.pdata Size: 102KB - Virtual size: 101KB

.gfids Size: 512B - Virtual size: 196B

.rsrc Size: 136KB - Virtual size: 135KB

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

33:00:00:04:13:31:bc:19:88:07:a9:07:74:00:00:00:00:04:13
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

83:42:43:76:a2:86:04:48:93:d9:77:e1:d8:19:93:9c:c3:9b:03:eb:7a:88:d6:a0:56:44:df:66:4c:96:f9:4f
Signer

.text
Size: 2.0MB - Virtual size: 2.0MB

.rdata
Size: 981KB - Virtual size: 981KB

.data
Size: 39KB - Virtual size: 201KB

.pdata
Size: 102KB - Virtual size: 101KB

.gfids
Size: 512B - Virtual size: 196B

.rsrc
Size: 136KB - Virtual size: 135KB

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