bazarbackdoor | UnityPlayer[.]dll

Resubmissions

20-04-2023 04:54

230420-fjm6dshf5t 10

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General

Target

UnityPlayer.dll
Size

27.4MB
MD5

621328ab3474b8031c4f8560019913f7
SHA1

b4d5c8c4dca8b4f1af54237e9672db1964c65368
SHA256

feb9235ee91dc546cf186e80ce345d49d7a9cdc995c050e1fdcac0ad5bc21456
SHA512

469fc115dcbf45ae3b305b5939804a0add0f47909b1befe8164b9860ee7b18727b51abe9edb77ced7c08751f55af02329704607dec30d1ba0d956427c271fde5
SSDEEP

393216:GK+ZfV7Ru1hww81dD1AXh6mB9P8cFIQHOXfHCrXB9StU51VYfZPbPHNsXaP9U:GDuvVHYta2hLK

Score

10^/10

bazarbackdoor

Malware Config

Signatures

Bazar/Team9 Backdoor payload 1 IoCs

resource	yara_rule
sample	BazarBackdoorVar3

Bazarbackdoor family
bazarbackdoor

Files

UnityPlayer.dll
.dll windows x64

06aca05315c50e09c2800132d3c6a50b

Code Sign

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

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

0f:7c:5a:5e:06:2a:bd:ba:fc:be:1e:c6:3d:4c:30:52
Certificate

Issuer

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

Not Before

14-07-2021 00:00

Not After

18-07-2024 23:59

Subject

CN=Unity Technologies ApS,OU=Developer Services,O=Unity Technologies ApS,L=København,C=DK

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

8a:3d:1b:3e:20:35:ff:e7:33:84:86:bb:eb:cc:df:58:11:5d:dd:c9
Signer

Actual PE Digest

8a:3d:1b:3e:20:35:ff:e7:33:84:86:bb:eb:cc:df:58:11:5d:dd:c9

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Unity Technologies ApS,OU=Developer Services,O=Unity Technologies ApS,L=København,C=DK

25-10-2021 23:42
Valid: true

Chain 1

CN=Unity Technologies ApS,OU=Developer Services,O=Unity Technologies ApS,L=København,C=DK

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

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

DeleteFileW
GetFileAttributesW
GetTempFileNameW
GlobalAlloc
GlobalUnlock
GlobalLock
GetSystemTime
GetSystemTimeAsFileTime
ExpandEnvironmentStringsW
CreateDirectoryW
CreateFileW
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
GetDiskFreeSpaceExW
GetFileAttributesExW
ReadFile
RemoveDirectoryW
SetEndOfFile
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SuspendThread
ResumeThread
LocalFree
CopyFileW
MoveFileExW
ReplaceFileW
SystemTimeToFileTime
Thread32First
Thread32Next
CreateMutexA
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
GetEnvironmentVariableA
GetCurrentDirectoryA
GetCurrentDirectoryW
GetFileAttributesA
DebugBreak
SetUnhandledExceptionFilter
GetErrorMode
GetThreadContext
ReadProcessMemory
GetModuleFileNameA
LocalAlloc
GetOverlappedResult
CancelIo
ResetEvent
GetTickCount
FormatMessageA
GetWindowsDirectoryW
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
CreateIoCompletionPort
GetQueuedCompletionStatus
DeleteCriticalSection
AttachConsole
InitializeCriticalSectionAndSpinCount
TryEnterCriticalSection
ReleaseSemaphore
GetLocalTime
GetTimeZoneInformation
GetFileSizeEx
IsDebuggerPresent
CreateSemaphoreExW
TlsAlloc
TlsFree
GetNativeSystemInfo
VirtualQuery
GetFileSize
OpenThread
GetSystemPowerStatus
WaitForMultipleObjectsEx
SetThreadAffinityMask
FlushConsoleInputBuffer
K32GetProcessMemoryInfo
GetFileType
CreateWaitableTimerA
SetWaitableTimer
OpenEventA
InterlockedFlushSList
InterlockedPushEntrySList
InterlockedPopEntrySList
InitializeSListHead
ExitThread
InitializeCriticalSectionEx
GetSystemDirectoryW
EncodePointer
DecodePointer
CompareStringW
LCMapStringW
GetStringTypeW
GetCPInfo
UnhandledExceptionFilter
IsProcessorFeaturePresent
GetStartupInfoW
CreateTimerQueue
SignalObjectAndWait
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
RegisterWaitForSingleObject
UnregisterWait
FreeLibraryAndExitThread
GetVersionExW
DuplicateHandle
QueryDepthSList
UnregisterWaitEx
RtlUnwindEx
RtlPcToFileHeader
RtlUnwind
HeapReAlloc
HeapSize
HeapQueryInformation
ExitProcess
GetModuleHandleExW
GetConsoleCP
GetConsoleMode
ReadConsoleW
GetDriveTypeW
GetFileInformationByHandle
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
HeapFree
HeapAlloc
GetProcessHeap
GetDateFormatW
GetTimeFormatW
QueryPerformanceFrequency
QueryPerformanceCounter
VerifyVersionInfoW
VerSetConditionMask
SetConsoleCtrlHandler
GetStartupInfoA
TerminateProcess
GetCurrentProcess
GetComputerNameW
GetModuleFileNameW
GetProcessId
GlobalMemoryStatus
CreateProcessW
GetExitCodeProcess
WaitForMultipleObjects
CreateEventW
CreatePipe
OutputDebugStringA
GetTempPathW
WriteFile
FlushFileBuffers
CreateFileA
SetStdHandle
SetConsoleMode
CreateToolhelp32Snapshot
GetUserDefaultLocaleName
ReadConsoleInputW
WaitForSingleObject
SetLastError
GetFullPathNameW
GetCommandLineW
GetLogicalProcessorInformationEx
GetSystemDirectoryA
GlobalMemoryStatusEx
SetErrorMode
LoadLibraryExW
IsValidCodePage
GetACP
CreateEventExW
GetModuleHandleW
GetThreadPriority
SetThreadPriority
GetCurrentThreadId
CreateThread
GetCurrentThread
RaiseException
SleepEx
CloseHandle
Sleep
CreateEventA
WaitForSingleObjectEx
SetEvent
FormatMessageW
SetHandleInformation
SetDllDirectoryW
SwitchToThread
GetModuleHandleA
GetThreadTimes
LoadLibraryW
GetLastError
WideCharToMultiByte
LoadLibraryA
GetProcAddress
WriteConsoleW
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
FreeLibrary
GetCurrentProcessId
MultiByteToWideChar
VirtualFree
VirtualProtect
VirtualAlloc
GetSystemInfo
TlsSetValue
GetStdHandle
TlsGetValue

user32

SetWindowLongA
LoadIconW
EnumDisplaySettingsW
MessageBoxW
AdjustWindowRectEx
KillTimer
GetRawInputDeviceList
RegisterRawInputDevices
GetRawInputBuffer
SetTimer
MsgWaitForMultipleObjects
PeekMessageA
GetCaretBlinkTime
GetDoubleClickTime
GetUserObjectInformationW
GetProcessWindowStation
EnumDisplaySettingsA
GetDC
GetWindowPlacement
GetRawInputDeviceInfoW
GetRawInputData
SystemParametersInfoW
GetWindowLongA
PtInRect
ScreenToClient
GetCursorPos
GetSystemMetrics
ReleaseCapture
SetCapture
MapVirtualKeyExA
MapVirtualKeyW
MapVirtualKeyA
ToUnicode
GetKeyNameTextW
GetAsyncKeyState
GetKeyState
UnregisterDeviceNotification
RegisterDeviceNotificationW
GetMessageExtraInfo
GetMessageTime
DispatchMessageA
TranslateMessage
GetKeyboardLayout
GetKeyboardLayoutNameW
LoadIconA
OffsetRect
CopyRect
SendDlgItemMessageW
SetDlgItemTextA
EndDialog
DialogBoxParamW
RegisterClassExW
EnumWindows
SetForegroundWindow
SendMessageTimeoutA
RegisterWindowMessageA
GetUserObjectInformationA
GetThreadDesktop
LoadImageW
DestroyIcon
DestroyCursor
LoadCursorA
SetCursor
IsClipboardFormatAvailable
EmptyClipboard
GetClipboardData
SetClipboardData
CloseClipboard
OpenClipboard
TrackMouseEvent
AllowSetForegroundWindow
ReleaseDC
GetDesktopWindow
DisplayConfigGetDeviceInfo
QueryDisplayConfig
GetDisplayConfigBufferSizes
UpdateWindow
EnumDisplayMonitors
GetMonitorInfoW
GetMonitorInfoA
MonitorFromWindow
MonitorFromRect
EnumDisplayDevicesA
GetParent
SetWindowLongPtrW
SetWindowLongPtrA
GetWindowLongPtrW
ClipCursor
ClientToScreen
SetCursorPos
ShowCursor
GetWindowRect
GetClientRect
SetWindowTextW
ValidateRect
DragDetect
GetFocus
GetActiveWindow
SetFocus
IsIconic
IsWindowVisible
SetWindowPos
MoveWindow
ShowWindow
DestroyWindow
CreateWindowExW
UnregisterClassW
RegisterClassW
PostQuitMessage
DefWindowProcW
SendMessageW
GetMessageA
MessageBoxA
SetDlgItemTextW

version

GetFileVersionInfoA
VerQueryValueA
GetFileVersionInfoSizeA

ole32

CoSetProxyBlanket
CoInitialize
StringFromGUID2
CoUninitialize
PropVariantCopy
PropVariantClear
CoCreateInstance
CoCreateGuid
CoTaskMemFree
CoCreateFreeThreadedMarshaler
CoTaskMemAlloc

shlwapi

PathCanonicalizeW
SHDeleteKeyW

setupapi

SetupDiGetDeviceInterfaceDetailW
SetupDiEnumDeviceInterfaces
SetupDiDestroyDeviceInfoList
SetupDiEnumDeviceInfo
SetupDiGetClassDevsA

advapi32

RegCloseKey
RegDeleteValueA
RegOpenKeyExW
RegQueryValueExA
RegSetValueExA
RegQueryValueExW
RegCreateKeyExW
RegSetValueExW
OpenProcessToken
GetSidSubAuthority
GetTokenInformation
DeregisterEventSource
RegisterEventSourceW
ReportEventW
GetUserNameA
CryptAcquireContextA
CryptReleaseContext
CryptGenRandom
CryptAcquireContextW
CryptGetHashParam
CryptCreateHash
CryptHashData
CryptDestroyHash
RegCreateKeyW

gdi32

SetPixelFormat
ChoosePixelFormat
SwapBuffers
GetDeviceCaps

shell32

SHGetFolderPathW
CommandLineToArgvW
ShellExecuteW
SHFileOperationW

opengl32

wglCreateContext
wglGetProcAddress
wglDeleteContext
wglGetCurrentDC
wglMakeCurrent
wglGetCurrentContext

winmm

timeGetTime
waveInAddBuffer
waveOutGetDevCapsA
waveOutGetDevCapsW
waveOutOpen
waveOutClose
waveOutPrepareHeader
waveOutUnprepareHeader
waveInStart
waveOutReset
waveOutGetPosition
waveInGetNumDevs
waveInGetDevCapsA
waveInGetDevCapsW
waveInOpen
waveInClose
timeBeginPeriod
timeEndPeriod
waveOutWrite
waveInReset
waveInPrepareHeader
waveInUnprepareHeader
waveOutGetNumDevs

oleaut32

SysAllocString
SysFreeString
VariantClear
VariantChangeType
VariantInit

imm32

ImmSetCompositionStringW
ImmGetCompositionStringW
ImmAssociateContextEx
ImmAssociateContext
ImmReleaseContext
ImmGetConversionStatus
ImmNotifyIME
ImmGetContext

winhttp

WinHttpGetIEProxyConfigForCurrentUser

bcrypt

BCryptGenRandom

hid

HidP_SetUsageValue
HidP_SetUsages
HidP_GetData
HidP_MaxDataListLength
HidP_GetValueCaps
HidP_GetButtonCaps
HidP_GetCaps
HidD_GetHidGuid
HidD_GetPreparsedData
HidD_FreePreparsedData
HidD_GetProductString
HidD_GetManufacturerString
HidD_GetSerialNumberString
HidD_GetAttributes

crypt32

CertFreeCertificateChain
CertVerifyCertificateChainPolicy
CertAddEncodedCertificateToStore
CertGetCertificateChain
CertOpenStore
CertFreeCertificateContext
CertCloseStore

ws2_32

WSAGetLastError
WSASetLastError
WSACleanup
WSAStartup
gethostname
socket
shutdown
setsockopt
sendto
send
select
WSASocketA
recv
ntohs
listen
inet_addr
htons
htonl
getsockname
ioctlsocket
connect
closesocket
bind
accept
__WSAFDIsSet
getaddrinfo
freeaddrinfo
getnameinfo
ntohl
WSAIoctl
getpeername
gethostbyname
getprotobyname
WSARecvFrom
getsockopt
WSACloseEvent
WSACreateEvent
WSASocketW
WSAWaitForMultipleEvents
WSAEnumNetworkEvents
WSAEventSelect
WSAResetEvent
WSASetEvent
gethostbyaddr
WSASendDisconnect
WSAAsyncGetHostByName
WSACancelAsyncRequest
recvfrom

dwmapi

DwmGetWindowAttribute

Exports

Exports

UnityMain

Sections

.text
Size: 22.2MB - Virtual size: 22.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 3.6MB - Virtual size: 3.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 404KB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 68KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 126KB - Virtual size: 126KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

06aca05315c50e09c2800132d3c6a50b

Code Sign

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

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

Extended Key Usages

Key Usages

0f:7c:5a:5e:06:2a:bd:ba:fc:be:1e:c6:3d:4c:30:52Certificate

Extended Key Usages

Key Usages

8a:3d:1b:3e:20:35:ff:e7:33:84:86:bb:eb:cc:df:58:11:5d:dd:c9Signer

Signature Validations

Verification

25-10-2021 23:42 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

version

ole32

shlwapi

setupapi

advapi32

gdi32

shell32

opengl32

winmm

oleaut32

imm32

winhttp

bcrypt

hid

crypt32

ws2_32

dwmapi

Exports

Exports

Sections

.text Size: 22.2MB - Virtual size: 22.2MB

.rdata Size: 3.6MB - Virtual size: 3.6MB

.data Size: 404KB - Virtual size: 1.4MB

.pdata Size: 1.1MB - Virtual size: 1.1MB

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

_RDATA Size: 68KB - Virtual size: 67KB

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 126KB - Virtual size: 126KB

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

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

0f:7c:5a:5e:06:2a:bd:ba:fc:be:1e:c6:3d:4c:30:52
Certificate

8a:3d:1b:3e:20:35:ff:e7:33:84:86:bb:eb:cc:df:58:11:5d:dd:c9
Signer

25-10-2021 23:42
Valid: true

.text
Size: 22.2MB - Virtual size: 22.2MB

.rdata
Size: 3.6MB - Virtual size: 3.6MB

.data
Size: 404KB - Virtual size: 1.4MB

.pdata
Size: 1.1MB - Virtual size: 1.1MB

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

_RDATA
Size: 68KB - Virtual size: 67KB

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 126KB - Virtual size: 126KB