bp_l4d2[.]dll | Triage

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General

Target

bp_l4d2.dll
Size

2.4MB
MD5

d249399972b1def563e3506ddfc80e82
SHA1

54699764c61955181ce87559ab631f32b3657fbb
SHA256

9bbdddfd4ace909180c9ef76dbaadcbb1f2f47f69c6ab485a463a82f871035c4
SHA512

3b83ab4650a809be0f52194f038e63cbe49b930173b64fd47c31ad03dda0e55f298026b2f3e36cbf5050b11d6bb2f2e6fa7a953ace2db3af96b6014434ad8015
SSDEEP

49152:lGinVQqD8Xj9byoRYkQGlVQkQO8PTwGRO6MQSSfjNItTsfbqS1:tVfATpRYk3VQW87wASSfjNItYbq

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
bp_l4d2.dll

Files

bp_l4d2.dll
.dll windows:6 windows x86 arch:x86

a463712156dec1b79ed56dd9b83c125a

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

GetEnvironmentVariableA
GetModuleHandleA
Sleep
GetLastError
GetProcAddress
SetEnvironmentVariableA
VirtualAlloc
GetModuleFileNameW
DisableThreadLibraryCalls
LoadLibraryA
CloseHandle
LoadLibraryW
CreateThread
VirtualFree
VirtualQuery
HeapCreate
VirtualProtect
HeapFree
GetCurrentProcess
Thread32Next
Thread32First
GetCurrentThreadId
SuspendThread
ResumeThread
CreateToolhelp32Snapshot
HeapReAlloc
HeapAlloc
GetThreadContext
GetCurrentProcessId
GetModuleHandleW
FlushInstructionCache
SetThreadContext
OpenThread
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
IsDebuggerPresent
QueryPerformanceCounter
GetSystemTimeAsFileTime
InitializeSListHead
EnterCriticalSection

msvcp140

?_Xout_of_range@std@@YAXPBD@Z

vcruntime140

__std_exception_copy
memset
__CxxFrameHandler3
strstr
wcsstr
__std_type_info_destroy_list
_CxxThrowException
__std_exception_destroy
_except_handler4_common
memcpy

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

__stdio_common_vsprintf_s
__acrt_iob_func
_wfopen
fwrite
fclose
__stdio_common_vfwprintf

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

_waccess
_wmkdir

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

_initialize_onexit_table
_cexit
_configure_narrow_argv
_seh_filter_dll
_initterm_e
_initterm
_crt_atexit
_register_onexit_function
_invalid_parameter_noinfo_noreturn
_execute_onexit_table
_initialize_narrow_environment

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

_callnewh
free
malloc

Sections

.text
Size: 16KB - Virtual size: 16KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2.4MB - Virtual size: 2.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a463712156dec1b79ed56dd9b83c125a

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcp140

vcruntime140

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

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

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

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

Sections

.text Size: 16KB - Virtual size: 16KB

.rdata Size: 7KB - Virtual size: 7KB

.data Size: 2.4MB - Virtual size: 2.4MB

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

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 16KB - Virtual size: 16KB

.rdata
Size: 7KB - Virtual size: 7KB

.data
Size: 2.4MB - Virtual size: 2.4MB

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

.reloc
Size: 2KB - Virtual size: 1KB