guloader[.]vir

Resubmissions

03/08/2023, 20:49

230803-zmcnlsga88 7

03/08/2023, 20:36

230803-zdjqkaga65 7

31/07/2023, 20:31

230731-zay13sba25 7

Sharing

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General

Target

guloader.vir
Size

353KB
MD5

dcf22d95f5672868f6481f6630fc8b29
SHA1

a4d197e136a7d1eb88d3fa80f47a0074b8da68d9
SHA256

e4166f298cbdea94680f5bbf8d711cffc45da1f3d31958514f9542e1b052adac
SHA512

4bed3323cb7e3fbd70e114da158b7db98f4d48c61a4c513af1e872a1400ba035ac1bfee241d239d06bd8175f1886aacde732e428ce6216f90c5dc41a5b0f3015
SSDEEP

6144:KQA4YmCq/gb8FGnRx9fgraEe7IrqLAkADIY3sGpJzMZaxKcrScqhkk:GmCq/ggktgrdeEOUf5JzGaxVLk

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
guloader.vir

Files

guloader.vir
.exe windows x86

24f4223e271413c25abad52fd456a9bc

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

ExitProcess
SetFileAttributesW
Sleep
GetTickCount
CreateFileW
GetFileSize
GetModuleFileNameW
GetCurrentProcess
SetCurrentDirectoryW
GetFileAttributesW
SetEnvironmentVariableW
GetWindowsDirectoryW
GetTempPathW
GetCommandLineW
GetVersion
SetErrorMode
lstrlenW
lstrcpynW
CopyFileW
MoveFileW
GlobalLock
CreateThread
GetLastError
CreateDirectoryW
CreateProcessW
RemoveDirectoryW
lstrcmpiA
GetTempFileNameW
WriteFile
lstrcpyA
MoveFileExW
lstrcatW
GetSystemDirectoryW
GetProcAddress
GetModuleHandleA
GetExitCodeProcess
WaitForSingleObject
lstrcmpiW
lstrcmpW
GetFullPathNameW
GetShortPathNameW
SearchPathW
CompareFileTime
SetFileTime
CloseHandle
ExpandEnvironmentStringsW
GlobalFree
GlobalUnlock
GetDiskFreeSpaceW
GlobalAlloc
DeleteFileW
FindFirstFileW
FindNextFileW
FindClose
SetFilePointer
ReadFile
MulDiv
lstrlenA
WideCharToMultiByte
MultiByteToWideChar
WritePrivateProfileStringW
FreeLibrary
GetPrivateProfileStringW
GetModuleHandleW
LoadLibraryExW

user32

GetWindowRect
GetSystemMenu
SetClassLongW
IsWindowEnabled
SetWindowPos
GetSysColor
GetWindowLongW
SetCursor
LoadCursorW
CheckDlgButton
GetMessagePos
CallWindowProcW
IsWindowVisible
CloseClipboard
SetClipboardData
EmptyClipboard
OpenClipboard
TrackPopupMenu
ScreenToClient
EnableMenuItem
GetDlgItem
SetDlgItemTextW
GetDlgItemTextW
MessageBoxIndirectW
CharPrevW
CharNextA
wsprintfA
DispatchMessageW
PeekMessageW
GetDC
ReleaseDC
EnableWindow
InvalidateRect
SendMessageW
DefWindowProcW
BeginPaint
GetClientRect
FillRect
SystemParametersInfoW
EndDialog
RegisterClassW
DialogBoxParamW
CreateWindowExW
GetClassInfoW
DestroyWindow
CharNextW
ExitWindowsEx
SetWindowTextW
LoadImageW
SetTimer
ShowWindow
PostQuitMessage
wsprintfW
SetWindowLongW
FindWindowExW
IsWindow
CreatePopupMenu
AppendMenuW
GetSystemMetrics
DrawTextW
EndPaint
CreateDialogParamW
SendMessageTimeoutW
SetForegroundWindow

gdi32

SelectObject
SetTextColor
SetBkMode
CreateFontIndirectW
CreateBrushIndirect
DeleteObject
GetDeviceCaps
SetBkColor

shell32

ShellExecuteExW
SHGetPathFromIDListW
SHGetSpecialFolderLocation
SHGetFileInfoW
SHFileOperationW
SHBrowseForFolderW

advapi32

AdjustTokenPrivileges
RegCreateKeyExW
RegOpenKeyExW
SetFileSecurityW
OpenProcessToken
LookupPrivilegeValueW
RegEnumValueW
RegDeleteKeyW
RegDeleteValueW
RegCloseKey
RegSetValueExW
RegQueryValueExW
RegEnumKeyW

comctl32

ImageList_Create
ImageList_AddMasked
ord17
ImageList_Destroy

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

Sections

.text
Size: 25KB - Virtual size: 25KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 128KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 152KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

24f4223e271413c25abad52fd456a9bc

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

.text Size: 25KB - Virtual size: 25KB

.rdata Size: 5KB - Virtual size: 4KB

.data Size: 1KB - Virtual size: 128KB

.ndata Size: - Virtual size: 152KB

.rsrc Size: 5KB - Virtual size: 5KB

.text
Size: 25KB - Virtual size: 25KB

.rdata
Size: 5KB - Virtual size: 4KB

.data
Size: 1KB - Virtual size: 128KB

.ndata
Size: - Virtual size: 152KB

.rsrc
Size: 5KB - Virtual size: 5KB