bazarbackdoor | jre-8u321-windows-x64[.]exe

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General

Target

jre-8u321-windows-x64.exe
Size

82.0MB
MD5

5c4de2813b42c80a2d77983624512e7a
SHA1

0e645b1e56de38a5859d187d71c792ea7cb5735a
SHA256

273fe2b92f8c123f28340660bf9a7dee6f3bf2c88f4299c31c302f9c674d921d
SHA512

263b008f849b036be046c545b9944f230ac5153899bd689c44d9d2f6d5ce848454136daab54401c4e79a40c9a1c017c33eb6df16b1a010a0d43ef051aefb5688
SSDEEP

1572864:W9Dm4YjKurf8BTFLWx0Uy1nB2yVbB33Ec1lyKEgjg7VQppCCXfUvvs:W9mjKuzmTUynBrbB3UWlyKEg0GVXfIvs

Score

10^/10

bazarbackdoor

Malware Config

Signatures

Bazar/Team9 Backdoor payload 1 IoCs

Processes:

resource yara_rule

sample BazarBackdoorVar3
Bazarbackdoor family
bazarbackdoor

resource	yara_rule
sample	BazarBackdoorVar3

Files

jre-8u321-windows-x64.exe
.exe windows x64

fd5f1e85e3720a47c028a3572d6a8aeb

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

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01-01-2021 00:00

Not After

06-01-2031 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

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

Not Before

07-01-2016 12:00

Not After

07-01-2031 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

b0:d0:80:0a:1b:0a:97:78:97:b9:85:6a:8f:74:41:56:1b:fa:30:03:f5:37:11:80:78:a5:9b:c5:17:12:dd:9f
Signer

Actual PE Digest

b0:d0:80:0a:1b:0a:97:78:97:b9:85:6a:8f:74:41:56:1b:fa:30:03:f5:37:11:80:78:a5:9b:c5:17:12:dd:9f

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

15-12-2021 20:39
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

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

RegCloseKey
ConvertStringSecurityDescriptorToSecurityDescriptorA

kernel32

FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetProcessHeap
HeapSize
WriteConsoleW
LoadLibraryW
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
GetModuleFileNameA
GetCommandLineW
GetCurrentProcess
GetModuleHandleExW
GetTempPathA
GetSystemDirectoryA
GetNativeSystemInfo
LocalFree
GetCurrentThreadId
Sleep
FormatMessageW
GetLocalTime
GetCurrentProcessId
RtlUnwind
FreeLibrary
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: 218KB - Virtual size: 217KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 108KB - Virtual size: 107KB

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: 81.6MB - Virtual size: 81.6MB

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

fd5f1e85e3720a47c028a3572d6a8aeb

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

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

b0:d0:80:0a:1b:0a:97:78:97:b9:85:6a:8f:74:41:56:1b:fa:30:03:f5:37:11:80:78:a5:9b:c5:17:12:dd:9fSigner

Signature Validations

Verification

15-12-2021 20:39 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

Sections

.text Size: 218KB - Virtual size: 217KB

.rdata Size: 108KB - Virtual size: 107KB

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

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

.rsrc Size: 81.6MB - Virtual size: 81.6MB

.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

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

b0:d0:80:0a:1b:0a:97:78:97:b9:85:6a:8f:74:41:56:1b:fa:30:03:f5:37:11:80:78:a5:9b:c5:17:12:dd:9f
Signer

15-12-2021 20:39
Valid: true

.text
Size: 218KB - Virtual size: 217KB

.rdata
Size: 108KB - Virtual size: 107KB

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

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

.rsrc
Size: 81.6MB - Virtual size: 81.6MB

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