grpconv[.]exe | Triage

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General

Target

grpconv.exe
Size

40KB
MD5

91d455c47f71b38647acaa3d18018b7f
SHA1

f34d31a656df7c79f7415e916ce5a4229a0b9da9
SHA256

bffcd5f21fcad5d54a29cf657cd8eb620250e9134a1b870deb3d77ed5ee83048
SHA512

8ccd300418f124009a09c1052043d8555a911066100abfc5e52812ac1633876e90546c006707d73c627cb93a84caa7509317b040ee5455a789cf0e933aae6001
SSDEEP

768:KA+f+v9fYSbHF6N9PoM981ZS9Dk9RQu9lJ+Nl3GNujVd4z4IydjU:KA+2v9fzF6d981ZS9Dk9RQu9lJ+yNua2

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
grpconv.exe

Files

grpconv.exe
.exe windows:10 windows x86 arch:x86

132c218b1f2e13f78fee548483028e32

Headers

DLL Characteristics

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_32BIT_MACHINE

PDB Paths

grpconv.pdb

Imports

advapi32

RegOpenKeyExW
RegEnumValueW
RegQueryValueExW
RegCloseKey
RegQueryInfoKeyW
RegCreateKeyExW
EventActivityIdControl
EventUnregister
EventSetInformation
EventRegister
EventWriteTransfer

kernel32

lstrlenW
GlobalUnlock
GlobalFree
ExpandEnvironmentStringsW
GetWindowsDirectoryW
GetSystemWindowsDirectoryW
GetLastError
SetErrorMode
HeapSetInformation
GetThreadLocale
GetCommandLineW
GetModuleFileNameA
InitOnceBeginInitialize
CreateSemaphoreExW
HeapFree
SetLastError
ReleaseSemaphore
GetModuleHandleExW
WaitForSingleObject
GetCurrentThreadId
ReleaseMutex
FormatMessageW
ReleaseSRWLockExclusive
OutputDebugStringW
InitOnceComplete
AcquireSRWLockExclusive
WaitForSingleObjectEx
OpenSemaphoreW
CloseHandle
HeapAlloc
GetProcAddress
CreateMutexExW
GetCurrentProcessId
GetProcessHeap
GetModuleHandleW
DebugBreak
IsDebuggerPresent
LocalFree
lstrcmpiW
GlobalAlloc
GlobalLock
lstrcmpW
LocalAlloc
GetPrivateProfileSectionW

user32

CharNextW
LoadStringW
SetCursor
LoadCursorW

msvcrt

memmove
_except_handler4_common
_controlfp
?terminate@@YAXXZ
_onexit
__dllonexit
_unlock
_lock
_acmdln
__setusermatherr
_ismbblead
__p__fmode
_cexit
_exit
exit
__set_app_type
__getmainargs
_vsnwprintf
__p__commode
_XcptFilter
_purecall
??3@YAXPAX@Z
memcpy_s
_initterm
_amsg_exit
memset

comctl32

ord334
ord17
ord332
ord328

shell32

ord94
SHGetFolderPathEx
ord165
ord42
ord58
ord49
ord51
ord164
ord680
SHChangeNotify
SHAddToRecentDocs

shlwapi

PathIsUNCW
PathFindFileNameW
PathFileExistsW
PathGetArgsW
PathUnquoteSpacesW
PathAppendW
PathGetDriveNumberW
ord456
PathFindExtensionW
ord158
PathRemoveFileSpecW
StrToIntW

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

CoCreateInstance
CoUninitialize
CoInitializeEx

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

Sleep

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

GetStartupInfoW
GetCurrentProcess
TerminateProcess

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetTickCount

imm32

ImmDisableIME

Sections

.text
Size: 29KB - Virtual size: 28KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

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

Sharing

General

Malware Config

Signatures

Files

132c218b1f2e13f78fee548483028e32

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

kernel32

user32

msvcrt

comctl32

shell32

shlwapi

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

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

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

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

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

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

imm32

Sections

.text Size: 29KB - Virtual size: 28KB

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

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

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

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

.text
Size: 29KB - Virtual size: 28KB

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

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

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

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