csrstub[.]exe | Triage

General

Target

csrstub.exe
Size

46KB
MD5

332f1f851fe2e705e400b1dd6f21be6b
SHA1

facd241e9d7c18bcb3f34a3c3cae1351f385d314
SHA256

a1f4da57b0a69f0ba2bae3f8df3806c8de053980cc6581480f77b09534d093cb
SHA512

60231b4bd333d513a65904579aa1ccc7ec3f4d009c7f46f56518bee67bf85dd55f04f8e527a33cfa01090355433ba15e1f8b502931f89a1bbea317a708655fd4
SSDEEP

768:myzf/nGDGejwuaUi4ZvFboDdOCik06US7MT9j+eWnr0:myJejwuaU5dUDwCikRA+xn

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
csrstub.exe

Files

csrstub.exe
.exe windows x86

370f7615ed07ad15c274a3b17cee11d6

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

kernel32

CloseHandle
GetExitCodeProcess
WaitForSingleObject
GetLastError
CreateProcessW
GetCommandLineW
HeapSetInformation
GetVersionExA
SetUnhandledExceptionFilter
GetProcAddress
GetModuleHandleA
ExitProcess
WriteFile
GetStdHandle
GetModuleFileNameA
GetModuleFileNameW
FreeEnvironmentStringsA
MultiByteToWideChar
GetEnvironmentStrings
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
SetHandleCount
GetFileType
GetStartupInfoA
DeleteCriticalSection
GetModuleHandleW
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
SetLastError
InterlockedDecrement
GetCurrentThreadId
HeapDestroy
HeapCreate
VirtualFree
HeapFree
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
GetCPInfo
GetACP
GetOEMCP
OutputDebugStringA
LeaveCriticalSection
EnterCriticalSection
LoadLibraryExA
InitializeCriticalSection
HeapAlloc
Sleep
VirtualAlloc
HeapReAlloc
LCMapStringA
WideCharToMultiByte
LCMapStringW
GetStringTypeA
GetStringTypeW
GetLocaleInfoA
UnhandledExceptionFilter
TerminateProcess
GetCurrentProcess
VirtualProtect
GetSystemInfo
VirtualQuery

ntdll

RtlUnwind

Sections

.text
Size: 36KB - Virtual size: 35KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

370f7615ed07ad15c274a3b17cee11d6

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ntdll

Sections

.text Size: 36KB - Virtual size: 35KB

.data Size: 3KB - Virtual size: 6KB

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

.reloc Size: 3KB - Virtual size: 3KB

.text
Size: 36KB - Virtual size: 35KB

.data
Size: 3KB - Virtual size: 6KB

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

.reloc
Size: 3KB - Virtual size: 3KB