bazarbackdoor | jre-8u351-windows-x64[.]exe

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General

Target

jre-8u351-windows-x64.exe
Size

84.5MB
MD5

7542ec421a2f6e90751e8b64c22e0542
SHA1

d207d221a28ede5c2c8415f82c555989aa7068ba
SHA256

188ca8ecc44de1b7f602e883c3054dc392792c3631bf362b1bc4f3e1dba323e6
SHA512

8987bf8aa1b401815fa9850e56954db6015bdd06ce78b65ba435724582ffa615dee4e1452fa237c53257dca8ee97b469d01c27757a5f070ce6f807a4f81094bc
SSDEEP

1572864:ugyqUvFZpZDQBTgcJ5pWuqHRAOLut/+EDSSXXfDS2ZVw:ugzUnvDHq5pW1xAwutGEDxXXfGP

Score

10^/10

bazarbackdoor

Malware Config

Signatures

Bazar/Team9 Backdoor payload 1 IoCs

resource	yara_rule
sample	BazarBackdoorVar3

Bazarbackdoor family
bazarbackdoor

Files

jre-8u351-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

03:cb:34:fd:3d:ff:12:11:33:9f:f0:7c:4b:21:57:c7
Certificate

Issuer

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

Not Before

30-08-2022 00:00

Not After

29-08-2023 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

33:a8:84:ee:67:61:22:dd:f1:d5:25:0d:4a:c7:73:8f:11:00:9b:49:6f:1d:be:c1:00:01:62:80:e7:b1:83:d3
Signer

Actual PE Digest

33:a8:84:ee:67:61:22:dd:f1:d5:25:0d:4a:c7:73:8f:11:00:9b:49:6f:1d:be:c1:00:01:62:80:e7:b1:83:d3

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

15-09-2022 04:04
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: 84.1MB - Virtual size: 84.1MB

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

03:cb:34:fd:3d:ff:12:11:33:9f:f0:7c:4b:21:57:c7Certificate

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

33:a8:84:ee:67:61:22:dd:f1:d5:25:0d:4a:c7:73:8f:11:00:9b:49:6f:1d:be:c1:00:01:62:80:e7:b1:83:d3Signer

Signature Validations

Verification

15-09-2022 04:04 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: 84.1MB - Virtual size: 84.1MB

.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

03:cb:34:fd:3d:ff:12:11:33:9f:f0:7c:4b:21:57:c7
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

33:a8:84:ee:67:61:22:dd:f1:d5:25:0d:4a:c7:73:8f:11:00:9b:49:6f:1d:be:c1:00:01:62:80:e7:b1:83:d3
Signer

15-09-2022 04:04
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: 84.1MB - Virtual size: 84.1MB

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