4545[.]dll | Triage

Resubmissions

21/08/2023, 12:33

230821-prkjxacg64 10

21/08/2023, 12:28

230821-pnqazsee4z 6

Sharing

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General

Target

4545.dll
Size

627KB
MD5

86efe486dedbca08d9ce8a0b4156b75b
SHA1

4f977cef5183e3d325cd8f9bb245b7de0f288256
SHA256

9b85fbfa3892a7a6deffba5d5bc5dd9c35ac6cb97a631752142faa0839423186
SHA512

56ba499f7e9dddccb029337048713171bc47f9055de68bb4a734a617fc12bf1870326ab97c3838e6c16e809d1c38326a57585469f40843e6ed54d92b5f1cca76
SSDEEP

12288:2TrZPDCk8aIcpSUM8IbLnFEeVJGAuG/g1ms5ULR:Ekk8av9IXFZoA9ghG

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
4545.dll

Files

4545.dll
.dll regsvr32 windows x64

585f131294795536c436234f292e7c1a

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

Imports

ntdll

NtWriteFile
NtReadVirtualMemory
RtlNtStatusToDosError
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
NtWaitForSingleObject
NtCreateThreadEx
NtProtectVirtualMemory
NtWriteVirtualMemory
NtAllocateVirtualMemory

kernel32

IsDebuggerPresent
DisableThreadLibraryCalls
GetCurrentThreadId
UnhandledExceptionFilter
InitializeSListHead
SetUnhandledExceptionFilter
GetModuleHandleW
GetSystemTimeAsFileTime
GetConsoleWindow
CreateProcessA
WriteProcessMemory
CreateFileW
CreateFileMappingW
CloseHandle
MapViewOfFile
UnmapViewOfFile
GetCurrentProcess
GetProcAddress
ReleaseSRWLockExclusive
ReleaseMutex
ReleaseSRWLockShared
GetLastError
AcquireSRWLockExclusive
GetCurrentThread
SetLastError
GetCurrentDirectoryW
GetEnvironmentVariableW
GetStdHandle
GetCurrentProcessId
WaitForSingleObject
TryAcquireSRWLockExclusive
QueryPerformanceCounter
HeapAlloc
GetProcessHeap
HeapFree
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
GetModuleHandleA
GetConsoleMode
IsProcessorFeaturePresent
FormatMessageW
ExitProcess
MultiByteToWideChar
WriteConsoleW
TlsGetValue
TlsSetValue

psapi

GetModuleBaseNameW
EnumProcessModulesEx

user32

ShowWindow
SetWindowPos

vcruntime140

__C_specific_handler
_CxxThrowException
memcmp
__CxxFrameHandler3
__std_type_info_destroy_list
memcpy
memmove
memset

api-ms-win-crt-runtime-l1-1-0

_cexit
_initialize_onexit_table
_initterm
_initterm_e
_seh_filter_dll
_execute_onexit_table
_initialize_narrow_environment
_configure_narrow_argv

api-ms-win-crt-heap-l1-1-0

free

Exports

Exports

DllGetClassObject
DllRegisterServer
DllUnregisterServer
Run

Sections

.text
Size: 126KB - Virtual size: 125KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 493KB - Virtual size: 493KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 776B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

585f131294795536c436234f292e7c1a

Headers

DLL Characteristics

File Characteristics

Imports

ntdll

kernel32

psapi

user32

vcruntime140

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-heap-l1-1-0

Exports

Exports

Sections

.text Size: 126KB - Virtual size: 125KB

.rdata Size: 493KB - Virtual size: 493KB

.data Size: 512B - Virtual size: 776B

.pdata Size: 5KB - Virtual size: 4KB

.reloc Size: 1KB - Virtual size: 1KB

.text
Size: 126KB - Virtual size: 125KB

.rdata
Size: 493KB - Virtual size: 493KB

.data
Size: 512B - Virtual size: 776B

.pdata
Size: 5KB - Virtual size: 4KB

.reloc
Size: 1KB - Virtual size: 1KB