guloader[.]zip

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General

Target

guloader.zip
Size

469KB
MD5

be70d8c2903408732e9cecfe627913b6
SHA1

3e8282d3761f2c9aa3f52a97b46a795e67ab6829
SHA256

6ac8deac835203283d4823311c49339f14e1d0612d6e19f2b09bc2110aa2d209
SHA512

e80d440140abec6483d074a7d7d6bb21a9aa9f342ce9ecb5c861d10be81e8e145e1967b5ea03c1c6b6b976b15ea0bf7380e1312616e1de8f5e4e26c4c1cb3864
SSDEEP

12288:Lg+E0b6nQ0HIz9kWwkH6O2U8Dn8PXdI1x7i:Lgr0b0g9kWw5O+8lki

Score

3^/10

Malware Config

Signatures

Unsigned PE 4 IoCs

Checks for missing Authenticode signature.

resource
unpack002/Requirement Against PO. No. 242313609.pdf.exe
unpack003/$PLUGINSDIR/BgImage.dll
unpack003/$PLUGINSDIR/nsDialogs.dll
unpack003/$PLUGINSDIR/nsExec.dll

NSIS installer 2 IoCs

installer

resource	yara_rule
static1/unpack002/Requirement Against PO. No. 242313609.pdf.exe	nsis_installer_1
static1/unpack002/Requirement Against PO. No. 242313609.pdf.exe	nsis_installer_2

Files

guloader.zip
.zip

Password: infected
6f554be42f3736e087303ec7aa76baded506694d924bcf90f4efa57ec96221db
.rar

Password: infected
Requirement Against PO. No. 242313609.pdf.exe
.exe windows:4 windows x86 arch:x86

Password: infected

671f2a1f8aee14d336bab98fea93d734

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

advapi32

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

shell32

SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
SHFileOperationA
ShellExecuteExA

ole32

OleUninitialize
OleInitialize
IIDFromString
CoCreateInstance
CoTaskMemFree

comctl32

ImageList_Destroy
ord17
ImageList_AddMasked
ImageList_Create

user32

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

gdi32

GetDeviceCaps
SetBkColor
SelectObject
DeleteObject
CreateBrushIndirect
CreateFontIndirectA
SetBkMode
SetTextColor

kernel32

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

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: 148KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 108KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 192KB - Virtual size: 192KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
$PLUGINSDIR/BgImage.dll
.dll windows:4 windows x86 arch:x86

Password: infected

0bf743a799aa40ec407e829cce14f6c8

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_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

InitializeCriticalSection
DeleteCriticalSection
lstrlenA
lstrcpyA
GlobalFree
GlobalAlloc
lstrcpynA
EnterCriticalSection
lstrcmpiA
LeaveCriticalSection

user32

DefWindowProcA
CallWindowProcA
LoadImageA
DestroyWindow
BeginPaint
FillRect
EndPaint
IsWindow
SendMessageA
UnregisterClassA
RedrawWindow
ShowWindow
LoadCursorA
RegisterClassA
CreateWindowExA
SetWindowLongA
GetSystemMetrics
SetWindowPos
DrawTextA

gdi32

SetBkColor
SetMapMode
GetMapMode
CreateCompatibleBitmap
CreateBitmap
DPtoLP
SetTextColor
SetBkMode
CreateSolidBrush
DeleteDC
CreateCompatibleDC
BitBlt
GetObjectA
SelectObject
DeleteObject

winmm

PlaySoundA

Exports

Exports

AddImage
AddText
Clear
Destroy
Redraw
SetBg
SetReturn
Sound

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 1024B - Virtual size: 620B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
$PLUGINSDIR/nsDialogs.dll
.dll windows:4 windows x86 arch:x86

Password: infected

cfc8bb9e11188db414351d2620c98f39

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_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

lstrcpyA
GetFileAttributesA
lstrcmpiA
MulDiv
lstrlenA
HeapFree
GetProcessHeap
GetCurrentDirectoryA
HeapReAlloc
GlobalFree
lstrcpynA
GlobalAlloc
HeapAlloc
SetCurrentDirectoryA

user32

GetPropA
DestroyWindow
CallWindowProcA
SetCursor
LoadCursorA
RemovePropA
CharPrevA
GetWindowLongA
DrawTextA
GetWindowTextA
SetWindowLongA
GetDlgItem
GetSysColor
SetWindowPos
CreateDialogParamA
MapWindowPoints
GetWindowRect
SetPropA
CreateWindowExA
IsWindow
SetTimer
KillTimer
DispatchMessageA
TranslateMessage
GetMessageA
IsDialogMessageA
ShowWindow
wsprintfA
MapDialogRect
GetClientRect
CharNextA
SendMessageA
DrawFocusRect

gdi32

SetTextColor

shell32

SHBrowseForFolderA
SHGetPathFromIDListA

comdlg32

GetSaveFileNameA
GetOpenFileNameA
CommDlgExtendedError

ole32

CoTaskMemFree

Exports

Exports

Create
CreateControl
CreateItem
CreateTimer
GetUserData
KillTimer
OnBack
OnChange
OnClick
OnNotify
SelectFileDialog
SelectFolderDialog
SetRTL
SetUserData
Show

Sections

.text
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 152B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 628B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
$PLUGINSDIR/nsExec.dll
.dll windows:4 windows x86 arch:x86

Password: infected

9076fa7961baeaeda0746cb0928f486a

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_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

advapi32

InitializeSecurityDescriptor
SetSecurityDescriptorDacl

user32

CharNextA
OemToCharBuffA
SendMessageA
CharNextExA
CharPrevA
FindWindowExA
wsprintfA

kernel32

GetCommandLineA
lstrcpynA
ExitProcess
GetCurrentProcess
GetModuleHandleA
GetProcAddress
Sleep
TerminateProcess
GlobalReAlloc
ReadFile
PeekNamedPipe
GetExitCodeProcess
WaitForSingleObject
GetTickCount
lstrcpyA
CreateProcessA
GetStartupInfoA
CreatePipe
GetVersion
DeleteFileA
lstrcmpiA
lstrlenA
lstrcatA
CloseHandle
UnmapViewOfFile
MapViewOfFile
CreateFileMappingA
CreateFileA
CopyFileA
GetTempFileNameA
GlobalFree
GlobalAlloc
GetModuleFileNameA

Exports

Exports

Exec
ExecToLog
ExecToStack

Sections

.text
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 434B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Afhandlings121.udr
Funnelled.txt
Hovedlinie.red
Premeasure.bob
Skingert.Bon
Svbelsesbrnene.Cre
disciplineringerne.dmo
sgnehelligdags.sto

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: infected

Password: infected

671f2a1f8aee14d336bab98fea93d734

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

Sections

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

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

.data Size: 1KB - Virtual size: 148KB

.ndata Size: - Virtual size: 108KB

.rsrc Size: 192KB - Virtual size: 192KB

Password: infected

0bf743a799aa40ec407e829cce14f6c8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

winmm

Exports

Exports

Sections

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

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

.data Size: 512B - Virtual size: 2KB

.reloc Size: 1024B - Virtual size: 620B

Password: infected

cfc8bb9e11188db414351d2620c98f39

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

comdlg32

ole32

Exports

Exports

Sections

.text Size: 4KB - Virtual size: 4KB

.rdata Size: 2KB - Virtual size: 1KB

.data Size: 512B - Virtual size: 4KB

.rsrc Size: 512B - Virtual size: 152B

.reloc Size: 1024B - Virtual size: 628B

Password: infected

9076fa7961baeaeda0746cb0928f486a

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

user32

kernel32

Exports

Exports

Sections

.text Size: 3KB - Virtual size: 2KB

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

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

.reloc Size: 512B - Virtual size: 434B

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

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

.data
Size: 1KB - Virtual size: 148KB

.ndata
Size: - Virtual size: 108KB

.rsrc
Size: 192KB - Virtual size: 192KB

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

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

.data
Size: 512B - Virtual size: 2KB

.reloc
Size: 1024B - Virtual size: 620B

.text
Size: 4KB - Virtual size: 4KB

.rdata
Size: 2KB - Virtual size: 1KB

.data
Size: 512B - Virtual size: 4KB

.rsrc
Size: 512B - Virtual size: 152B

.reloc
Size: 1024B - Virtual size: 628B

.text
Size: 3KB - Virtual size: 2KB

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

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

.reloc
Size: 512B - Virtual size: 434B