lumen[.]exe | Triage

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General

Target

lumen.exe
Size

1.4MB
MD5

b9b8c08946e6929a7f6c7dca41ed3898
SHA1

9b9fb7346bdba4b22fd4c4edb3719f7d98037815
SHA256

52b94bcbe29fd7268151b4a164a04c9002e6cc43ce432942a03d0b784e3a7c91
SHA512

7206741fed85aab120cc3c24ba315ed0546c011bedb0d6c87692b18939c92565d25b40d95c6b604ad9c09f5d24ffb9643d0ca9ffe52e22042b39035497f46075
SSDEEP

24576:DKmdSsdTkPoy6A8ppHUbcNeBoRuT35kUZA7gUwZD5oKlVIH06iy9FMlzL:DKySITkPoyQrHNw43UW7gUwLXzIU6is+

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
lumen.exe

Files

lumen.exe
.exe windows:4 windows x64 arch:x64

ba7b73700a0c0af4b8c9e153ec5e49de

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED

Imports

advapi32

SystemFunction036

bcrypt

BCryptGenRandom

crypt32

CertCloseStore
CertDuplicateCertificateContext
CertEnumCertificatesInStore
CertFreeCertificateContext
CertGetEnhancedKeyUsage
CertOpenStore
CertVerifyTimeValidity

gdi32

CreateDCW
DeleteDC
GetDeviceCaps

kernel32

AddVectoredExceptionHandler
CloseHandle
CreateFileMappingA
CreateFileW
CreateIoCompletionPort
CreateThread
CreateToolhelp32Snapshot
DuplicateHandle
FindClose
FindFirstFileW
FindNextFileW
FormatMessageW
FreeLibrary
GetConsoleMode
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentThread
GetEnvironmentVariableW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFinalPathNameByHandleW
GetFullPathNameW
GetLastError
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetQueuedCompletionStatusEx
GetStdHandle
GetSystemInfo
GetSystemTimePreciseAsFileTime
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
LoadLibraryA
LoadLibraryExA
MapViewOfFile
Module32FirstW
Module32NextW
MultiByteToWideChar
PostQueuedCompletionStatus
QueryPerformanceCounter
QueryPerformanceFrequency
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetFileCompletionNotificationModes
SetFileInformationByHandle
SetFilePointerEx
SetHandleInformation
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
Sleep
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnmapViewOfFile
WaitForSingleObject
WriteConsoleW
DeleteCriticalSection
EnterCriticalSection
InitializeCriticalSection
LeaveCriticalSection
RaiseException
RtlUnwindEx
VirtualProtect
VirtualQuery
__C_specific_handler

ntdll

NtCancelIoFileEx
NtCreateFile
NtDeviceIoControlFile
NtReadFile
NtWriteFile
RtlNtStatusToDosError

oleaut32

SysFreeString
SysStringLen

user32

EnumDisplayMonitors
EnumDisplaySettingsW
GetMonitorInfoW
GetSystemMetrics
MapVirtualKeyW
ReleaseDC
SendInput
SetProcessDpiAwarenessContext
VkKeyScanW

ws2_32

WSACleanup
WSAGetLastError
WSAIoctl
WSASend
WSASocketW
WSAStartup
bind
closesocket
connect
freeaddrinfo
getaddrinfo
getsockopt
ioctlsocket
recv
send
setsockopt
socket

api-ms-win-core-synch-l1-2-0

WaitOnAddress
WakeByAddressAll
WakeByAddressSingle

bcryptprimitives

ProcessPrng

msvcrt

__getmainargs
__initenv
__iob_func
__set_app_type
__setusermatherr
_amsg_exit
_cexit
_commode
_errno
_fmode
_fpreset
_initterm
_onexit
abort
calloc
exit
fprintf
free
fwrite
malloc
memcmp
memcpy
memmove
memset
pow
signal
strlen
strncmp
vfprintf

Sections

.text
Size: 1.0MB - Virtual size: 1.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 292KB - Virtual size: 292KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.eh_fram
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 29KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.xdata
Size: 71KB - Virtual size: 71KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 704B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 104B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ba7b73700a0c0af4b8c9e153ec5e49de

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

crypt32

gdi32

kernel32

ntdll

oleaut32

user32

ws2_32

api-ms-win-core-synch-l1-2-0

bcryptprimitives

msvcrt

Sections

.text Size: 1.0MB - Virtual size: 1.0MB

.data Size: 512B - Virtual size: 480B

.rdata Size: 292KB - Virtual size: 292KB

.eh_fram Size: 512B - Virtual size: 4B

.pdata Size: 29KB - Virtual size: 28KB

.xdata Size: 71KB - Virtual size: 71KB

.bss Size: - Virtual size: 704B

.idata Size: 6KB - Virtual size: 6KB

.CRT Size: 512B - Virtual size: 104B

.tls Size: 512B - Virtual size: 16B

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

.text
Size: 1.0MB - Virtual size: 1.0MB

.data
Size: 512B - Virtual size: 480B

.rdata
Size: 292KB - Virtual size: 292KB

.eh_fram
Size: 512B - Virtual size: 4B

.pdata
Size: 29KB - Virtual size: 28KB

.xdata
Size: 71KB - Virtual size: 71KB

.bss
Size: - Virtual size: 704B

.idata
Size: 6KB - Virtual size: 6KB

.CRT
Size: 512B - Virtual size: 104B

.tls
Size: 512B - Virtual size: 16B

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