lsess[.]bin | Triage

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General

Target

lsess.bin
Size

55KB
MD5

fd0ef924c1edc067cd2298024a7057b0
SHA1

0a32d7600869f37f0fbe2a5c996cda5111d4a4d1
SHA256

cd89fd5bf3049fad64718c190ae014b4c9c0d141e3550d63008c1c5c71d50bd7
SHA512

275efb2d22ceaed29c4c4563782f648663ea752a6b08d4472ba12d29dc76c57b2120c3a5984d08f5a0ebdd3abf68e6ea8af1325ff9eb24830c43c8c489ad44c0
SSDEEP

1536:HNeRBl5PT/rx1mzwRMSTdLpJ47kmvBMRM:HQRrmzwR5JWk2+

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
lsess.bin

Files

lsess.bin
.exe windows:5 windows x86 arch:x86

851a0ba8fbb71710075bdfe6dcef92eb

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

mpr

WNetEnumResourceW
WNetUseConnectionW
WNetOpenEnumW
WNetCloseEnum

ws2_32

ioctlsocket
getpeername
ntohl
select
WSAGetLastError
htons
recv
socket
closesocket
getsockopt
WSAAddressToStringW
htonl
connect

iphlpapi

GetIpAddrTable

winhttp

WinHttpReceiveResponse
WinHttpOpenRequest
WinHttpConnect
WinHttpCloseHandle
WinHttpOpen
WinHttpSendRequest

kernel32

FindClose
FindNextFileW
SystemTimeToFileTime
OpenProcess
FindFirstFileW
MoveFileW
GetFileSizeEx
SetFilePointerEx
SetEndOfFile
GetCurrentThreadId
GetLocalTime
ExitProcess
SetFilePointer
WaitForSingleObject
GetComputerNameW
SetEvent
GetLogicalDrives
GetTickCount
Sleep
CopyFileW
GetFileAttributesW
ReadFile
CreateFileW
MultiByteToWideChar
CreateEventW
WaitForMultipleObjects
CloseHandle
SetFileAttributesW
CreateThread
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
ResetEvent
DeleteCriticalSection
AllocConsole
WriteFile
WideCharToMultiByte
WriteConsoleW
GetStdHandle
CreateMutexW
CreateProcessW
GetCurrentProcess
SetHandleInformation
HeapFree
GetLocaleInfoW
ReadProcessMemory
TerminateProcess
GetModuleFileNameW
FlushFileBuffers
OpenMutexW
GetLastError
GetProcAddress
Process32FirstW
GetExitCodeThread
CreatePipe
Process32NextW
GetModuleHandleA
CreateToolhelp32Snapshot
ReleaseMutex
GetVersion
DeleteFileW
GetCurrentProcessId
GetVolumeInformationW
ExpandEnvironmentStringsW
HeapAlloc
GetProcessHeap
HeapReAlloc
QueryPerformanceCounter

user32

GetWindowThreadProcessId
GetShellWindow

advapi32

FreeSid
LookupPrivilegeValueW
OpenProcessToken
GetTokenInformation
EqualSid
RegSetValueExW
RegCloseKey
AdjustTokenPrivileges
RegOpenKeyExW
LookupAccountSidW
AllocateAndInitializeSid
DuplicateTokenEx
RegQueryValueExW

shell32

ShellExecuteExW

ole32

CoGetObject
CoInitializeEx
CoUninitialize

Sections

.text
Size: 33KB - Virtual size: 33KB

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: 1KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.cdata
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

851a0ba8fbb71710075bdfe6dcef92eb

Headers

DLL Characteristics

File Characteristics

Imports

mpr

ws2_32

iphlpapi

winhttp

kernel32

user32

advapi32

shell32

ole32

Sections

.text Size: 33KB - Virtual size: 33KB

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

.data Size: 1KB - Virtual size: 9KB

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

.cdata Size: 14KB - Virtual size: 13KB

.text
Size: 33KB - Virtual size: 33KB

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

.data
Size: 1KB - Virtual size: 9KB

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

.cdata
Size: 14KB - Virtual size: 13KB