nsis_guloader[.]bin

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General

Target

nsis_guloader.bin
Size

638KB
MD5

fb8d0ae425b4e14bca8fc3eecab23baf
SHA1

db25c79437e303d21b137f73d114c5bdfb6f9d98
SHA256

e037f37fa8553539837baf5602a5180b83497536e9c285707929c46fdcc8cb18
SHA512

d49d8baaec4a1505026cb15b9482932c2fce964a9cc9018e70a825ee90482da2c89a265c1211969870a204a18a789e16ef66204533eefcfdb8a277ad190a14e7
SSDEEP

12288:f0VN1HuZEzOOe3MgfEQz/b+JJLSnKJHCzwHBW:MHlzxmMMEKyFNC/

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
nsis_guloader.bin
unpack001/$PLUGINSDIR/System.dll

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

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

e871f39e81b4aa977737b07cee050825

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_32BIT_MACHINE

Imports

advapi32

RegCloseKey
RegDeleteKeyA
RegDeleteValueA
RegEnumKeyA
RegEnumValueA
RegQueryValueExA
RegSetValueExA
OpenProcessToken
AdjustTokenPrivileges
LookupPrivilegeValueA
SetFileSecurityA
RegCreateKeyExA
RegOpenKeyExA

shell32

ShellExecuteExA
SHBrowseForFolderA
SHFileOperationA
SHGetPathFromIDListA
SHGetFileInfoA
SHGetSpecialFolderLocation

ole32

OleUninitialize
IIDFromString
OleInitialize
CoTaskMemFree
CoCreateInstance

comctl32

ord17
ImageList_Destroy
ImageList_AddMasked
ImageList_Create

user32

SystemParametersInfoA
LoadCursorA
SetClassLongA
GetWindowLongA
ScreenToClient
SetCursor
GetWindowRect
TrackPopupMenu
AppendMenuA
EnableMenuItem
CreatePopupMenu
GetSystemMenu
GetSystemMetrics
IsWindowEnabled
EmptyClipboard
SetClipboardData
CloseClipboard
OpenClipboard
CheckDlgButton
EndDialog
DialogBoxParamA
IsWindowVisible
SetWindowPos
CreateWindowExA
GetClassInfoA
RegisterClassA
DispatchMessageA
GetMessagePos
CharNextA
ExitWindowsEx
SetWindowTextA
SetTimer
CreateDialogParamA
DestroyWindow
LoadImageA
FindWindowExA
SetWindowLongA
InvalidateRect
ReleaseDC
GetDC
SetForegroundWindow
EnableWindow
GetDlgItem
ShowWindow
IsWindow
PostQuitMessage
SendMessageTimeoutA
SendMessageA
wsprintfA
FillRect
GetClientRect
EndPaint
BeginPaint
DrawTextA
DefWindowProcA
PeekMessageA
SetDlgItemTextA
MessageBoxIndirectA
CharPrevA
CallWindowProcA
GetDlgItemTextA
GetSysColor

gdi32

SetBkMode
CreateBrushIndirect
GetDeviceCaps
SelectObject
DeleteObject
SetBkColor
SetTextColor
CreateFontIndirectA

kernel32

WriteFile
GetTempFileNameA
GetLastError
WaitForSingleObject
ReadFile
CreateFileA
CreateDirectoryA
lstrcpynA
GlobalLock
GlobalUnlock
CreateThread
GetDiskFreeSpaceA
CopyFileA
lstrlenA
GetVersionExA
GetWindowsDirectoryA
ExitProcess
GetExitCodeProcess
SetErrorMode
GetTempPathA
SetEnvironmentVariableA
GetCommandLineA
GetModuleFileNameA
GetTickCount
GetFileSize
MultiByteToWideChar
MoveFileA
WritePrivateProfileStringA
GetPrivateProfileStringA
lstrcmpiA
lstrcmpA
MulDiv
GetShortPathNameA
GlobalFree
GlobalAlloc
LoadLibraryExA
GetModuleHandleA
FreeLibrary
Sleep
CloseHandle
SetFileTime
SetFilePointer
SetFileAttributesA
GetFullPathNameA
GetFileAttributesA
FindNextFileA
FindFirstFileA
FindClose
DeleteFileA
CompareFileTime
SearchPathA
SetCurrentDirectoryA
ExpandEnvironmentStringsA
RemoveDirectoryA
CreateProcessA
WideCharToMultiByte
GetSystemDirectoryA
GetProcAddress
lstrcpyA
lstrcatA
MoveFileExA
GetCurrentProcess

Sections

.text
Size: 27KB - Virtual size: 27KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 148KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 88KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 267KB - Virtual size: 266KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
$PLUGINSDIR/System.dll
.dll windows:6 windows x86 arch:x86

595a3fd71239f605bb02d7a5e48fd4df

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

GlobalAlloc
GlobalSize
GlobalFree
lstrcpynA
lstrcpyA
GetLastError
VirtualAlloc
VirtualProtect
VirtualFree
FreeLibrary
GetModuleHandleA
GetProcAddress
LoadLibraryA
lstrlenA
MultiByteToWideChar
WideCharToMultiByte

user32

wsprintfA

ole32

StringFromGUID2
CLSIDFromString

Exports

Exports

Alloc
Call
Copy
Free
Get
Int64Op
Store
StrAlloc

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1024B - Virtual size: 926B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 68B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 492B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Guldure.une
Hooklet.uhd
Roundtree123.txt
Stropharia.Tho
Tilstillede/bi.bar
Tilstillede/cavalierish.ise
Tilstillede/kludders.und
Tilstillede/lnk.non
Tilstillede/missilformularers.lit
Trindelingens/nonabstractedness.tav
Trindelingens/outskipped.met
Trindelingens/prisregulering.for
Trindelingens/subtrude.std
Trindelingens/totalindtryks.pro
Trindelingens/trypetid.oxb
Trindelingens/vicegreves.kol
ansigtsudtrykket.hne
antitrochanter.adj

Sharing

General

Malware Config

Signatures

Files

e871f39e81b4aa977737b07cee050825

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

Sections

.text Size: 27KB - Virtual size: 27KB

.rdata Size: 6KB - Virtual size: 5KB

.data Size: 512B - Virtual size: 148KB

.ndata Size: - Virtual size: 88KB

.rsrc Size: 267KB - Virtual size: 266KB

595a3fd71239f605bb02d7a5e48fd4df

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

ole32

Exports

Exports

Sections

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

.rdata Size: 1024B - Virtual size: 926B

.data Size: 512B - Virtual size: 68B

.reloc Size: 512B - Virtual size: 492B

.text
Size: 27KB - Virtual size: 27KB

.rdata
Size: 6KB - Virtual size: 5KB

.data
Size: 512B - Virtual size: 148KB

.ndata
Size: - Virtual size: 88KB

.rsrc
Size: 267KB - Virtual size: 266KB

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

.rdata
Size: 1024B - Virtual size: 926B

.data
Size: 512B - Virtual size: 68B

.reloc
Size: 512B - Virtual size: 492B