LogonUI[.]exe | Triage

Resubmissions

04/06/2023, 01:12

230604-bk2mysbb5w 3

04/06/2023, 01:08

230604-bhkxesbb41 3

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General

Target

LogonUI.exe
Size

13KB
MD5

893144fe49aa16124b5bd3034e79bbc6
SHA1

fbf39a288fc46cbf0620cfd297395a8fb4fbcdad
SHA256

cf01e46c146699f6c0e3dd447043f59bc9438dbbcb9563af6c60ebc6d82727f2
SHA512

c921ee3786717ac1f9e1981e35494f33d26d153afb335c52219830261f84155383d5ac9ff0ea1d7f3f6913b28c878ce6b5ea350f60ed9a9bf1ac006596fd4c68
SSDEEP

192:yecuhBM44rbhVsO3XKtK3NyeiKQ2pxeILJJQYSlid3slZiU4ltWIUW:HVhq4Ih6U3NRXpxLLJGYWi2ZcnWIUW

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
LogonUI.exe

Files

LogonUI.exe
.exe windows x64

b9b0b64b08b38276711093ca94348d39

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

msvcrt

?terminate@@YAXXZ
_commode
_fmode
_wcmdln
__C_specific_handler
__setusermatherr
_cexit
_exit
exit
__set_app_type
__wgetmainargs
_amsg_exit
_XcptFilter
wcsncmp
wcschr
_initterm
wcstoul

api-ms-win-core-processthreads-l1-1-0

GetCurrentProcessId
GetCurrentProcess
TerminateProcess
GetStartupInfoW
GetCurrentThreadId
SetPriorityClass

api-ms-win-core-com-l1-1-0

CoInitializeEx
CoUninitialize
CoCreateInstance

api-ms-win-core-heap-l2-1-0

LocalFree
LocalAlloc

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

Sleep

api-ms-win-core-errorhandling-l1-1-0

SetUnhandledExceptionFilter
UnhandledExceptionFilter

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

GetModuleHandleW

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-sysinfo-l1-1-0

GetTickCount
GetSystemTimeAsFileTime

api-ms-win-core-rtlsupport-l1-1-0

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 512B - Virtual size: 444B

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: 512B - Virtual size: 32B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

b9b0b64b08b38276711093ca94348d39

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-com-l1-1-0

api-ms-win-core-heap-l2-1-0

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

api-ms-win-core-errorhandling-l1-1-0

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

api-ms-win-core-profile-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-rtlsupport-l1-1-0

Sections

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

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

.data Size: 512B - Virtual size: 1KB

.pdata Size: 512B - Virtual size: 444B

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

.reloc Size: 512B - Virtual size: 32B

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

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

.data
Size: 512B - Virtual size: 1KB

.pdata
Size: 512B - Virtual size: 444B

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

.reloc
Size: 512B - Virtual size: 32B