PermLoader[.]rar

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General

Target

PermLoader.rar
Size

83.8MB
MD5

7897fd2c5d4a77bed292856a46f4ce4e
SHA1

dae328f9ff29f3f9adc301483c0364f51241f6d2
SHA256

9a197e4f4a6aafd809793e81f9b5c95800185a458f90ebff3ad1f93f0b5cfedd
SHA512

ed7942c12b4b8cd2a7ada3dcdf46132dc29e8b9bf1cdbabb526c05da53044dacd4febcb8c25c61b41fbdb6dabcef5a3809625c9e0d18006d742258e79a9d28dc
SSDEEP

1572864:7nLP1fj1Su701VsO29p/60RvwwmnueJKd18aCymctLH0Oxo5GH+EZ2x2W:bbZjF70e9p/60RoSeM8NQLUJ7cJW

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
static1/unpack001/PermLoader/Installer.exe	upx

Unsigned PE 3 IoCs

Checks for missing Authenticode signature.

resource
unpack001/PermLoader/Installer.exe
unpack002/out.upx
unpack001/PermLoader/PermLoader.exe

Files

PermLoader.rar
.rar
PermLoader/Installer.exe
.exe windows:5 windows x64 arch:x64

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

UPX0
Size: - Virtual size: 228KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 127KB - Virtual size: 128KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 61KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:5 windows x64 arch:x64

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Sections

.text
Size: 171KB - Virtual size: 171KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 76KB - Virtual size: 75KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 61KB - Virtual size: 61KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
PermLoader/PermLoader.exe
.exe windows:4 windows x64 arch:x64

f326f88ca83c9aacaa44acfb8884f1d4

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

msvcrt

memset
wcsncmp
memmove
wcsncpy
wcsstr
_wcsnicmp
_wcsdup
free
_wcsicmp
wcslen
wcscpy
wcscmp
wcscat
memcpy
tolower
malloc

kernel32

GetModuleHandleW
HeapCreate
GetStdHandle
SetConsoleCtrlHandler
HeapDestroy
ExitProcess
WriteFile
GetTempFileNameW
LoadLibraryExW
EnumResourceTypesW
FreeLibrary
RemoveDirectoryW
EnumResourceNamesW
GetCommandLineW
LoadResource
SizeofResource
FreeResource
FindResourceW
GetShortPathNameW
GetSystemDirectoryW
EnterCriticalSection
CloseHandle
LeaveCriticalSection
InitializeCriticalSection
WaitForSingleObject
TerminateThread
CreateThread
Sleep
WideCharToMultiByte
HeapAlloc
HeapFree
LoadLibraryW
GetProcAddress
GetCurrentProcessId
GetCurrentThreadId
GetModuleFileNameW
PeekNamedPipe
TerminateProcess
GetEnvironmentVariableW
SetEnvironmentVariableW
GetCurrentProcess
DuplicateHandle
CreatePipe
CreateProcessW
GetExitCodeProcess
RtlLookupFunctionEntry
RtlVirtualUnwind
RemoveVectoredExceptionHandler
AddVectoredExceptionHandler
HeapSize
MultiByteToWideChar
CreateDirectoryW
SetFileAttributesW
GetTempPathW
DeleteFileW
GetCurrentDirectoryW
SetCurrentDirectoryW
CreateFileW
SetFilePointer
TlsFree
TlsGetValue
TlsSetValue
TlsAlloc
HeapReAlloc
DeleteCriticalSection
GetLastError
SetLastError
UnregisterWait
GetCurrentThread
RegisterWaitForSingleObject

shell32

ShellExecuteExW
SHGetFolderLocation
SHGetPathFromIDListW

winmm

timeBeginPeriod

ole32

CoInitialize
CoTaskMemFree

shlwapi

PathAddBackslashW
PathRenameExtensionW
PathQuoteSpacesW
PathRemoveArgsW
PathRemoveBackslashW

user32

CharUpperW
CharLowerW
MessageBoxW
DefWindowProcW
GetWindowLongPtrW
GetWindowTextLengthW
GetWindowTextW
EnableWindow
DestroyWindow
UnregisterClassW
LoadIconW
LoadCursorW
RegisterClassExW
IsWindowEnabled
GetSystemMetrics
CreateWindowExW
SetWindowLongPtrW
SendMessageW
SetFocus
CreateAcceleratorTableW
SetForegroundWindow
BringWindowToTop
GetMessageW
TranslateAcceleratorW
TranslateMessage
DispatchMessageW
DestroyAcceleratorTable
PostMessageW
GetForegroundWindow
GetWindowThreadProcessId
IsWindowVisible
EnumWindows
SetWindowPos

gdi32

GetStockObject

comctl32

InitCommonControlsEx

Sections

.code
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 67KB - Virtual size: 67KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 198KB - Virtual size: 198KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
PermLoader/instructions.txt

Sharing

General

Malware Config

Signatures

Files

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 228KB

UPX1 Size: 127KB - Virtual size: 128KB

.rsrc Size: 61KB - Virtual size: 64KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 171KB - Virtual size: 171KB

.rdata Size: 76KB - Virtual size: 75KB

.data Size: 3KB - Virtual size: 12KB

.pdata Size: 9KB - Virtual size: 8KB

_RDATA Size: 512B - Virtual size: 500B

.rsrc Size: 61KB - Virtual size: 61KB

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

f326f88ca83c9aacaa44acfb8884f1d4

Headers

File Characteristics

Imports

msvcrt

kernel32

shell32

winmm

ole32

shlwapi

user32

gdi32

comctl32

Sections

.code Size: 23KB - Virtual size: 22KB

.text Size: 67KB - Virtual size: 67KB

.rdata Size: 19KB - Virtual size: 18KB

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

.data Size: 5KB - Virtual size: 8KB

.rsrc Size: 198KB - Virtual size: 198KB

UPX0
Size: - Virtual size: 228KB

UPX1
Size: 127KB - Virtual size: 128KB

.rsrc
Size: 61KB - Virtual size: 64KB

.text
Size: 171KB - Virtual size: 171KB

.rdata
Size: 76KB - Virtual size: 75KB

.data
Size: 3KB - Virtual size: 12KB

.pdata
Size: 9KB - Virtual size: 8KB

_RDATA
Size: 512B - Virtual size: 500B

.rsrc
Size: 61KB - Virtual size: 61KB

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

.code
Size: 23KB - Virtual size: 22KB

.text
Size: 67KB - Virtual size: 67KB

.rdata
Size: 19KB - Virtual size: 18KB

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

.data
Size: 5KB - Virtual size: 8KB

.rsrc
Size: 198KB - Virtual size: 198KB