Static task
static1
Behavioral task
behavioral1
Sample
KO98765456700.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
KO98765456700.exe
Resource
win10v2004-20231130-en
General
-
Target
KO98765456700.pdf.xz
-
Size
573KB
-
MD5
5c50d9ed8bd94b93cac7a9079a6950a3
-
SHA1
a509a0929a94ba25a5e2c7573e38b475dc44597a
-
SHA256
5b6fcd76673eee56e8a5926c3fb42cf2783aa7ecb92763a49801fac94645b3e1
-
SHA512
eeac8f6e6d6593f06232c830b805db8ca483ec4af7565055eceee8e573da154df418569087bb0c241816d6ce19aa5c13f832b657e29c88db48f2689db124ed8e
-
SSDEEP
12288:ssHbSr2BJsouwn/EFUzOA/KMnQHewqgDTNofqyPSuH83o3:sse0Jzn/E4SMnQueTDqS683e
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/KO98765456700.bat -
NSIS installer 2 IoCs
resource yara_rule static1/unpack001/KO98765456700.bat nsis_installer_1 static1/unpack001/KO98765456700.bat nsis_installer_2
Files
-
KO98765456700.pdf.xz.zip
-
KO98765456700.bat.exe windows:4 windows x86 arch:x86
b76363e9cb88bf9390860da8e50999d2
Headers
DLL Characteristics
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
GetTickCount
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
SetFileAttributesA
CompareFileTime
SearchPathA
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
GetWindowsDirectoryA
GetTempPathA
Sleep
lstrcmpiA
GetVersion
SetErrorMode
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
GetLastError
CreateDirectoryA
CreateProcessA
RemoveDirectoryA
CreateFileA
GetTempFileNameA
lstrcatA
GetSystemDirectoryA
WaitForSingleObject
SetFileTime
CloseHandle
GlobalFree
lstrcmpA
ExpandEnvironmentStringsA
GetExitCodeProcess
GlobalAlloc
lstrlenA
GetCommandLineA
GetProcAddress
FindFirstFileA
FindNextFileA
DeleteFileA
SetFilePointer
ReadFile
FindClose
GetPrivateProfileStringA
WritePrivateProfileStringA
WriteFile
MulDiv
MultiByteToWideChar
LoadLibraryExA
GetModuleHandleA
FreeLibrary
user32
SetCursor
GetWindowRect
EnableMenuItem
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
EndDialog
ScreenToClient
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetForegroundWindow
GetWindowLongA
RegisterClassA
TrackPopupMenu
AppendMenuA
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
GetDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
ExitWindowsEx
SetTimer
PostQuitMessage
SetWindowLongA
SendMessageTimeoutA
LoadImageA
wsprintfA
GetDlgItem
FindWindowExA
IsWindow
SetClipboardData
EmptyClipboard
OpenClipboard
EndPaint
CreateDialogParamA
DestroyWindow
ShowWindow
SetWindowTextA
gdi32
SelectObject
SetBkMode
CreateFontIndirectA
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor
shell32
SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
SHFileOperationA
ShellExecuteA
advapi32
RegDeleteValueA
SetFileSecurityA
RegOpenKeyExA
RegDeleteKeyA
RegEnumValueA
RegCloseKey
RegCreateKeyExA
RegSetValueExA
RegQueryValueExA
RegEnumKeyA
comctl32
ImageList_AddMasked
ImageList_Destroy
ImageList_Create
ord17
ole32
OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance
Sections
.text Size: 24KB - Virtual size: 23KB
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: 151KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.ndata Size: - Virtual size: 32KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ