r77 | a2c38035183bd2377ed4baec12f239b676db2431e140236fc2b8b35a3996e122

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General

Target

a2c38035183bd2377ed4baec12f239b676db2431e140236fc2b8b35a3996e122
Size

1.3MB
MD5

3784bbde91dcdcf8668fcf78e711b05b
SHA1

73d46f795e10c127e644b13759996eeb434903f5
SHA256

a2c38035183bd2377ed4baec12f239b676db2431e140236fc2b8b35a3996e122
SHA512

5abe505082bd6a71fccb63daaa5ee017b0e43e98ef4afffbda725a3aa12ace17973b79b285f5634a5bcc5fed66591054e5fade0d9b2dc77780d66b3db25b5516
SSDEEP

24576:LRXRRRRRRRRRRRRRRRRRRRRRRRRRRRRRgVQ6yJcyIHr9xTjoEIzOdoa8iPLDSVXv:LA+JcyarTX/ZxPYXT5Xld3hGCf1P

Score

10^/10

r77

Malware Config

Signatures

R77 family
r77

r77 rootkit payload 1 IoCs

Detects the payload of the r77 rootkit.

resource	yara_rule
sample	r77_payload

Files

a2c38035183bd2377ed4baec12f239b676db2431e140236fc2b8b35a3996e122
.exe windows x64

28871e7fd41b875456d7742efbec7703

Code Sign

47:8b:c1:86:22:c0:70:29:63:1b:cc:39:df:a3:2a:8b
Certificate

Issuer

CN=David Miller Root CA - R4,O=David Miller Trust Services,C=CN

Not Before

04-01-2023 00:00

Not After

03-01-2053 23:59

Subject

CN=David Miller Root CA - R4,O=David Miller Trust Services,C=CN

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

2a:bf:b4:c0:32:66:50:70:cd:21:7c:b5:ed:69:7f:9b
Certificate

Issuer

CN=David Miller Code Signing CA - G3 - SHA384,OU=For authorized use only,O=David Miller Trust Services,C=CN

Not Before

15-04-2023 00:00

Not After

14-04-2024 23:59

Subject

SERIALNUMBER=7777897613,CN=David Miller,O=David Miller Trust Services,L=Beijing,ST=Beijing,C=CN,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,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

0e:39:48:f9:bc:a0:29:eb:ef:2b:b1:2a:a9:3e:5b:32
Certificate

Issuer

CN=David Miller Root CA - R4,O=David Miller Trust Services,C=CN

Not Before

12-04-2023 00:00

Not After

11-04-2033 23:59

Subject

CN=David Miller Code Signing CA - G3 - SHA384,OU=For authorized use only,O=David Miller Trust Services,C=CN

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21-09-2022 00:00

Not After

21-11-2033 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,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

f4:24:79:74:a0:a1:f8:d1:32:06:0b:5e:f4:79:f7:d7:25:28:ba:51:31:b3:2a:23:a8:4b:54:8e:4d:78:ec:62
Signer

Actual PE Digest

f4:24:79:74:a0:a1:f8:d1:32:06:0b:5e:f4:79:f7:d7:25:28:ba:51:31:b3:2a:23:a8:4b:54:8e:4d:78:ec:62

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

SERIALNUMBER=7777897613,CN=David Miller,O=David Miller Trust Services,L=Beijing,ST=Beijing,C=CN,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.2=#13074265696a696e67,1.3.6.1.4.1.311.60.2.1.3=#1302434e

16-04-2023 02:18
Valid: 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

Imports

kernel32

GetCurrentProcessId
LoadLibraryW
GetProcAddress
WaitNamedPipeW
GetLastError
CreateFileW
ReadFile
WriteFile
GetModuleHandleA
LoadLibraryA
GetPrivateProfileStringW
WritePrivateProfileStringW
GetModuleHandleW
FindResourceW
LoadResource
SizeofResource
LockResource
InitializeCriticalSectionEx
DeleteCriticalSection
DecodePointer
HeapAlloc
Sleep
HeapReAlloc
HeapSize
GetProcessHeap
GetTempPathW
GetFileAttributesW
GetModuleFileNameW
LoadLibraryExW
FreeLibrary
MultiByteToWideChar
GetCurrentProcess
IsWow64Process
SetLastError
ResumeThread
WaitForSingleObject
LocalFree
CreateDirectoryW
WriteConsoleW
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
MapViewOfFile
CreateFileMappingW
UnmapViewOfFile
HeapFree
CloseHandle
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
GetTimeZoneInformation
SetStdHandle
GetFullPathNameW
GetCurrentDirectoryW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
CompareStringW
WideCharToMultiByte
GetStringTypeW
WaitForSingleObjectEx
GetCurrentThreadId
GetExitCodeThread
InitializeSRWLock
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
TryAcquireSRWLockExclusive
EnterCriticalSection
LeaveCriticalSection
EncodePointer
LCMapStringEx
QueryPerformanceCounter
CompareStringEx
GetCPInfo
GetSystemTimeAsFileTime
InitializeCriticalSectionAndSpinCount
CreateEventW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
OutputDebugStringW
RaiseException
RtlUnwindEx
RtlPcToFileHeader
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
RtlUnwind
GetDriveTypeW
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ExitProcess
GetModuleHandleExW
CreateThread
ExitThread
FreeLibraryAndExitThread
GetStdHandle
SetFilePointerEx
FlushFileBuffers
GetConsoleOutputCP
GetConsoleMode

user32

MessageBoxA
MessageBoxW

advapi32

SetEntriesInAclW
ConvertStringSidToSidW
GetNamedSecurityInfoW
SetNamedSecurityInfoW

shell32

SHGetFolderPathW

ole32

CoInitializeEx
CoUninitialize

oleaut32

SysFreeString
SysAllocString

mscoree

CorBindToRuntime
CLRCreateInstance

wininet

InternetOpenUrlA
InternetOpenA
InternetReadFile

version

GetFileVersionInfoSizeW
VerQueryValueW
GetFileVersionInfoW

winmm

PlaySoundW

Sections

.text
Size: 335KB - Virtual size: 335KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 117KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 16KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 818KB - Virtual size: 818KB

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

28871e7fd41b875456d7742efbec7703

Code Sign

47:8b:c1:86:22:c0:70:29:63:1b:cc:39:df:a3:2a:8bCertificate

Key Usages

2a:bf:b4:c0:32:66:50:70:cd:21:7c:b5:ed:69:7f:9bCertificate

Extended Key Usages

Key Usages

0e:39:48:f9:bc:a0:29:eb:ef:2b:b1:2a:a9:3e:5b:32Certificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

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

f4:24:79:74:a0:a1:f8:d1:32:06:0b:5e:f4:79:f7:d7:25:28:ba:51:31:b3:2a:23:a8:4b:54:8e:4d:78:ec:62Signer

Signature Validations

Verification

16-04-2023 02:18 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

ole32

oleaut32

mscoree

wininet

version

winmm

Sections

.text Size: 335KB - Virtual size: 335KB

.rdata Size: 117KB - Virtual size: 116KB

.data Size: 6KB - Virtual size: 14KB

.pdata Size: 16KB - Virtual size: 15KB

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 818KB - Virtual size: 818KB

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

47:8b:c1:86:22:c0:70:29:63:1b:cc:39:df:a3:2a:8b
Certificate

2a:bf:b4:c0:32:66:50:70:cd:21:7c:b5:ed:69:7f:9b
Certificate

0e:39:48:f9:bc:a0:29:eb:ef:2b:b1:2a:a9:3e:5b:32
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
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

f4:24:79:74:a0:a1:f8:d1:32:06:0b:5e:f4:79:f7:d7:25:28:ba:51:31:b3:2a:23:a8:4b:54:8e:4d:78:ec:62
Signer

16-04-2023 02:18
Valid: false

.text
Size: 335KB - Virtual size: 335KB

.rdata
Size: 117KB - Virtual size: 116KB

.data
Size: 6KB - Virtual size: 14KB

.pdata
Size: 16KB - Virtual size: 15KB

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 818KB - Virtual size: 818KB

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