bazarbackdoor | jdk-8u361-windows-x64[.]exe

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General

Target

jdk-8u361-windows-x64.exe
Size

144.6MB
MD5

c78ce593e7ebd9f4d9b3767a1e48ce3c
SHA1

b42661d3a0f0027460c0bf61b09b02f92f63735d
SHA256

76ba063d2793e4b3e5e7720d1eb2e33077ee34add205baa0fe4dc1621e8f8850
SHA512

502492f47bec27e32fc8a1cf6ef1b2b51e2e42b011e99036eefe101787df0310af4e44b7b10b482f8bb7f067bf73abd68f0069c14a4a8522372529814a94bceb
SSDEEP

3145728:of2RcaJLIT2N5+u5LD6CUX0LF7RYvC9W9R4MeUZdsCU1wui3x7:ZRchTMnkJX0LF7qMuR4rUDsCSkB7

Score

10^/10

bazarbackdoor

Malware Config

Signatures

Bazar/Team9 Backdoor payload 1 IoCs

resource	yara_rule
sample	BazarBackdoorVar3

Bazarbackdoor family
bazarbackdoor

Files

jdk-8u361-windows-x64.exe
.exe windows x64

b7f8323a9b9824d6c1fd4c99e858a4be

Code Sign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

06:8b:e2:f5:34:52:c8:82:f1:8e:d4:1a:5d:d4:e7:a3
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

19/08/2021, 00:00

Not After

19/08/2023, 23:59

Subject

CN=Oracle America\, Inc.,OU=Software Engineering,O=Oracle America\, Inc.,L=Redwood City,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

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

bb:d2:fe:2f:cc:3f:75:00:a1:0b:6f:c4:be:b7:00:9a:ba:15:4d:29:09:77:f5:e8:0c:25:91:40:93:47:18:96
Signer

Actual PE Digest

bb:d2:fe:2f:cc:3f:75:00:a1:0b:6f:c4:be:b7:00:9a:ba:15:4d:29:09:77:f5:e8:0c:25:91:40:93:47:18:96

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Oracle America\, Inc.,OU=Software Engineering,O=Oracle America\, Inc.,L=Redwood City,ST=California,C=US

09/01/2023, 09:37
Valid: true

Chain 1

CN=Oracle America\, Inc.,OU=Software Engineering,O=Oracle America\, Inc.,L=Redwood City,ST=California,C=US

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Chain 2

CN=Oracle America\, Inc.,OU=Software Engineering,O=Oracle America\, Inc.,L=Redwood City,ST=California,C=US

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

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

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

advapi32

ConvertStringSidToSidA
EqualSid
RegCloseKey
GetTokenInformation
OpenProcessToken
CopySid
ConvertStringSecurityDescriptorToSecurityDescriptorA

kernel32

FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
HeapSize
WriteConsoleW
WaitForSingleObject
GetModuleHandleA
GetModuleHandleExA
GetLastError
SetDllDirectoryA
GetProcAddress
CreateProcessA
CreateDirectoryA
GetExitCodeProcess
CloseHandle
SizeofResource
FindResourceA
LockResource
LoadResource
MultiByteToWideChar
WideCharToMultiByte
FindFirstFileA
SetLastError
GetDriveTypeA
FindNextFileA
InitializeCriticalSectionAndSpinCount
FindClose
CopyFileA
GetFileAttributesA
MoveFileExA
CreateFileA
DeleteFileA
RaiseException
SetFileAttributesA
DecodePointer
RemoveDirectoryA
DeleteCriticalSection
GetTickCount
GetModuleHandleExW
LoadLibraryW
FreeLibrary
GetModuleFileNameA
GetCommandLineW
GetCurrentProcess
GetTempPathA
GetSystemDirectoryA
GetNativeSystemInfo
LocalFree
GetCurrentThreadId
Sleep
FormatMessageW
GetLocalTime
GetCurrentProcessId
RtlUnwind
GetStringTypeW
EnterCriticalSection
LeaveCriticalSection
SwitchToThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
EncodePointer
LCMapStringW
GetLocaleInfoW
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
OutputDebugStringW
HeapReAlloc
SetEndOfFile
SetStdHandle
ReadConsoleW
ReadFile
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
FlushFileBuffers
SetFilePointerEx
RtlUnwindEx
RtlPcToFileHeader
LoadLibraryExW
GetCommandLineA
CreateFileW
GetFileType
WriteFile
GetConsoleCP
GetConsoleMode
GetStdHandle
GetModuleFileNameW
ExitProcess
HeapFree
HeapAlloc
GetFileSizeEx

Sections

.text
Size: 223KB - Virtual size: 223KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 111KB - Virtual size: 111KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 144.3MB - Virtual size: 144.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b7f8323a9b9824d6c1fd4c99e858a4be

Code Sign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

06:8b:e2:f5:34:52:c8:82:f1:8e:d4:1a:5d:d4:e7:a3Certificate

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

bb:d2:fe:2f:cc:3f:75:00:a1:0b:6f:c4:be:b7:00:9a:ba:15:4d:29:09:77:f5:e8:0c:25:91:40:93:47:18:96Signer

Signature Validations

Verification

09/01/2023, 09:37 Valid: true

Chain 1

Chain 2

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

Sections

.text Size: 223KB - Virtual size: 223KB

.rdata Size: 111KB - Virtual size: 111KB

.data Size: 5KB - Virtual size: 11KB

.pdata Size: 11KB - Virtual size: 11KB

.rsrc Size: 144.3MB - Virtual size: 144.3MB

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

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

06:8b:e2:f5:34:52:c8:82:f1:8e:d4:1a:5d:d4:e7:a3
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

bb:d2:fe:2f:cc:3f:75:00:a1:0b:6f:c4:be:b7:00:9a:ba:15:4d:29:09:77:f5:e8:0c:25:91:40:93:47:18:96
Signer

09/01/2023, 09:37
Valid: true

.text
Size: 223KB - Virtual size: 223KB

.rdata
Size: 111KB - Virtual size: 111KB

.data
Size: 5KB - Virtual size: 11KB

.pdata
Size: 11KB - Virtual size: 11KB

.rsrc
Size: 144.3MB - Virtual size: 144.3MB

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