beacon[.]dll | Triage

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General

Target

beacon.dll
Size

300KB
MD5

48da5ea7922bd14fb26b5f96c1530731
SHA1

b27c5fe269d0bcd5cc89af9216b52b9e8326dfc4
SHA256

4eb27c64926120448abf0b984b36d0fdf770b3604b47048d797b3093cb5f0f42
SHA512

8f86398d44122595a7cea0aca5c9d017deda969a297483e41cfd83f1c6650e319eb22eaac53ab5b36af876afa23f91604e3496effb23cb1b0590c39ad59bdd45
SSDEEP

6144:Gj/7Qsrm8pU99tkS1eTbqreroKvFPvvOFOY:GvLPw9tZU+kFPukY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
beacon.dll

Files

beacon.dll
.dll windows:5 windows x64 arch:x64

46551b97c1d63fc258acfca97bdbeb94

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
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI

Imports

kernel32

CreateNamedPipeA
TerminateProcess
CreateProcessA
GetCurrentDirectoryW
GetFullPathNameA
GetLogicalDrives
FindClose
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
ExpandEnvironmentStringsA
GetFileAttributesA
FindFirstFileA
FindNextFileA
CopyFileA
MoveFileA
GetCurrentProcessId
CreateThread
CreateToolhelp32Snapshot
Thread32First
Thread32Next
Wow64GetThreadContext
Wow64SetThreadContext
VirtualAlloc
VirtualProtect
SetLastError
SetNamedPipeHandleState
PeekNamedPipe
CreateFileA
WaitNamedPipeA
GetModuleFileNameA
GetComputerNameA
GetVersionExA
GetACP
GetOEMCP
GetProcessHeap
InitializeProcThreadAttributeList
DeleteProcThreadAttributeList
SetErrorMode
UpdateProcThreadAttribute
ProcessIdToSessionId
Process32First
Process32Next
GetComputerNameExA
VirtualFree
VirtualQuery
VirtualAllocEx
VirtualProtectEx
OpenProcess
CreateRemoteThread
ConnectNamedPipe
ReadProcessMemory
WriteProcessMemory
GetThreadContext
SetThreadContext
ResumeThread
CloseHandle
DuplicateHandle
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
ExitProcess
ExitThread
ReadFile
GetCurrentThread
GetCurrentProcess
MultiByteToWideChar
GetCurrentDirectoryA
SetCurrentDirectoryA
GetStartupInfoA
DisconnectNamedPipe
CreatePipe
GetTickCount
GetLocalTime
FlushFileBuffers
WriteFile
WaitForSingleObject
Sleep
GetModuleHandleA
LoadLibraryA
GetLastError
HeapFree
RaiseException
SetEnvironmentVariableW
SetEnvironmentVariableA
HeapAlloc
HeapDestroy
HeapCreate
SetEndOfFile
CreateFileW
WriteConsoleW
SetStdHandle
GetStringTypeW
LCMapStringW
CompareStringW
HeapSize
LoadLibraryW
OutputDebugStringW
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
RemoveDirectoryW
CreateDirectoryW
DeleteFileW
GetFileType
SetFilePointerEx
SetFilePointer
ReadConsoleW
GetConsoleMode
GetConsoleCP
WideCharToMultiByte
GetCPInfo
IsValidCodePage
RtlUnwindEx
GetProcAddress
OpenThread
FreeLibrary
EncodePointer
DecodePointer
GetModuleHandleExW
AreFileApisANSI
GetSystemTimeAsFileTime
HeapReAlloc
GetCommandLineA
GetCurrentThreadId
GetStdHandle
GetModuleFileNameW
IsDebuggerPresent
IsProcessorFeaturePresent
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetStartupInfoW
GetModuleHandleW
LoadLibraryExW

advapi32

GetTokenInformation
OpenProcessToken
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
CheckTokenMembership
DuplicateTokenEx
LogonUserA
LookupAccountSidA
FreeSid
AllocateAndInitializeSid
ImpersonateNamedPipeClient
RevertToSelf
GetUserNameA
CreateProcessWithTokenW
CreateProcessWithLogonW
CreateProcessAsUserA
ImpersonateLoggedOnUser
LookupPrivilegeValueA
AdjustTokenPrivileges
OpenThreadToken

wininet

InternetReadFile
InternetCloseHandle
InternetConnectA
InternetQueryDataAvailable
InternetQueryOptionA
InternetSetOptionA
InternetSetStatusCallback
HttpOpenRequestA
HttpAddRequestHeadersA
HttpSendRequestA
HttpQueryInfoA
InternetOpenA

ws2_32

ntohs
gethostbyname
socket
send
connect
ioctlsocket
WSAIoctl
WSACleanup
WSAStartup
closesocket
ntohl
htons
htonl
recv
shutdown
WSAGetLastError
__WSAFDIsSet
accept
bind
inet_addr
listen
recvfrom
select
sendto
WSASocketA

Exports

Exports

ReflectiveLoader

Sections

.text
Size: 192KB - Virtual size: 192KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 63KB - Virtual size: 63KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 29KB - Virtual size: 70KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

46551b97c1d63fc258acfca97bdbeb94

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

wininet

ws2_32

Exports

Exports

Sections

.text Size: 192KB - Virtual size: 192KB

.rdata Size: 63KB - Virtual size: 63KB

.data Size: 29KB - Virtual size: 70KB

.pdata Size: 9KB - Virtual size: 9KB

.reloc Size: 4KB - Virtual size: 3KB

.text
Size: 192KB - Virtual size: 192KB

.rdata
Size: 63KB - Virtual size: 63KB

.data
Size: 29KB - Virtual size: 70KB

.pdata
Size: 9KB - Virtual size: 9KB

.reloc
Size: 4KB - Virtual size: 3KB