grpconv[.]exe | Triage

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General

Target

grpconv.exe
Size

40KB
MD5

188528e2957c14c4b2327c8925a3bf95
SHA1

5b078959a3328965d9548c88064332084672704a
SHA256

5e3ccd2368d635e2a15abe58f599b9d2c7313fde597ee7727c2bb2411814ede1
SHA512

d808dd0ad8fdd259988df6d46ed8e420e102232293d55b5e9af820ecc1278be28584011be9dbf4d29ce1b41066435eac081ff77e0eaad6d2c3b2c4c07c590ae0
SSDEEP

384:C79i3p/MqRxJUNroJXLR6S2uguqo+DPh3EBiUcZbJk4F06mWOsW:K0ZH0OBLRBqtoSVEBiUcZbF8

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 x64 arch:x64

df6575a8914fbe570472a31e0cecac12

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE

Imports

advapi32

RegEnumValueW
RegQueryValueExW
RegCloseKey
RegCreateKeyExW
RegOpenKeyExW

kernel32

lstrlenW
GlobalUnlock
GlobalFree
ExpandEnvironmentStringsW
GetWindowsDirectoryW
GetPrivateProfileSectionW
SetErrorMode
HeapSetInformation
GetThreadLocale
GetCommandLineW
GlobalAlloc
GetSystemWindowsDirectoryW
lstrcmpW
GlobalLock
lstrcmpiW
LocalFree
LocalAlloc

user32

LoadCursorW
SetCursor
CharNextW
LoadStringW

msvcrt

_commode
?terminate@@YAXXZ
_fmode
__set_app_type
__getmainargs
_XcptFilter
exit
_acmdln
_exit
__C_specific_handler
_initterm
__setusermatherr
_amsg_exit
_cexit
_ismbblead
memmove

comctl32

ord17
ord332
ord334
ord328

shell32

ord58
ord42
ord165
SHGetFolderPathEx
ord94
ord51
SHAddToRecentDocs
ord164
ord49
SHChangeNotify

shlwapi

ord456
ord158
StrToIntW
PathUnquoteSpacesW
PathGetArgsW
PathFileExistsW
PathAppendW
PathIsUNCW
PathGetDriveNumberW
PathFindFileNameW
PathRemoveFileSpecW

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

CoUninitialize
CoInitializeEx
CoCreateInstance

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

Sleep

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

GetCurrentProcessId
TerminateProcess
GetCurrentThreadId
GetCurrentProcess
GetStartupInfoW

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

RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter

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

GetModuleHandleW

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetTickCount

imm32

ImmDisableIME

Sections

.text
Size: 12KB - Virtual size: 8KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 8KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 360B

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: 4KB - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

df6575a8914fbe570472a31e0cecac12

Headers

DLL Characteristics

File Characteristics

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-rtlsupport-l1-1-0

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

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

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

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

imm32

Sections

.text Size: 12KB - Virtual size: 8KB

.rdata Size: 8KB - Virtual size: 6KB

.data Size: 4KB - Virtual size: 1KB

.pdata Size: 4KB - Virtual size: 360B

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

.reloc Size: 4KB - Virtual size: 48B

.text
Size: 12KB - Virtual size: 8KB

.rdata
Size: 8KB - Virtual size: 6KB

.data
Size: 4KB - Virtual size: 1KB

.pdata
Size: 4KB - Virtual size: 360B

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

.reloc
Size: 4KB - Virtual size: 48B