Krampus[.]zip | Triage

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General

Target

Krampus.zip
Size

437KB
MD5

772066657856854d0a971dd2bb712ef8
SHA1

06aee58ae65189acc923cb75324f9a1a6d970e4f
SHA256

47e9b7e8dae0e4baec0aab32a3dbf59972bc3dd4549bd38cd951f49edf7c9302
SHA512

d2fcbeeb2ffb119ec7c6040736b8a7761a37af788b6138afff2102e5a8b3e94f2d35f24716e26e4364ddb864b830697c4669ad407630b5d2e2b8bbbf9ec0f12f
SSDEEP

6144:+/lrnszwmf+v1nU9UgFtiqIOLxitBanEBakWw6QHViplLCt42sTBJZfYfAYpzd:+JZdU2QIOLYBaEGQ1gNCtpeZZYp5

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/compiler.exe
unpack001/lua51.dll

Files

Krampus.zip
.zip
Launcher.bat
compiler.exe
.exe windows:6 windows x86 arch:x86

0c327287604442ee6d005a9e2ac6238a

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

lua51

lua_gettop
luaJIT_version_2_1_0_beta3
luaL_openlibs
luaL_traceback
luaL_newstate
luaL_loadbuffer
luaL_loadfile
luaL_where
luaL_callmeta
lua_sethook
lua_concat
lua_error
lua_gc
lua_cpcall
lua_pcall
lua_call
lua_rawseti
lua_setfield
lua_createtable
lua_rawgeti
lua_getfield
lua_gettable
lua_pushboolean
lua_pushcclosure
lua_pushfstring
lua_pushstring
lua_pushlstring
lua_pushnil
lua_objlen
lua_tolstring
lua_toboolean
lua_type
lua_isstring
lua_insert
lua_remove
lua_pushvalue
lua_settop
lua_close

kernel32

DeleteCriticalSection
WriteConsoleW
CreateFileW
CloseHandle
HeapReAlloc
HeapSize
ReadConsoleW
ReadFile
GetProcessHeap
GetStringTypeW
SetStdHandle
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
WideCharToMultiByte
MultiByteToWideChar
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
SetFilePointerEx
GetFileSizeEx
GetConsoleMode
GetConsoleOutputCP
FlushFileBuffers
GetFileType
LCMapStringW
CompareStringW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
HeapFree
RtlUnwind
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DecodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
RaiseException
GetCommandLineA
GetCommandLineW
SetConsoleCtrlHandler
GetStdHandle
WriteFile
GetModuleFileNameW
ExitProcess
GetModuleHandleExW
HeapAlloc

Exports

Exports

__swprintf_l
__vswprintf_l
_fprintf_l
_fprintf_p
_fprintf_p_l
_fprintf_s_l
_fscanf_l
_fscanf_s_l
_fwprintf_l
_fwprintf_p
_fwprintf_p_l
_fwprintf_s_l
_fwscanf_l
_fwscanf_s_l
_printf_l
_printf_p
_printf_p_l
_printf_s_l
_scanf_l
_scanf_s_l
_scprintf
_scprintf_l
_scprintf_p
_scprintf_p_l
_scwprintf
_scwprintf_l
_scwprintf_p
_scwprintf_p_l
_snprintf
_snprintf_c
_snprintf_c_l
_snprintf_l
_snprintf_s
_snprintf_s_l
_snscanf
_snscanf_l
_snscanf_s
_snscanf_s_l
_snwprintf
_snwprintf_l
_snwprintf_s
_snwprintf_s_l
_snwscanf
_snwscanf_l
_snwscanf_s
_snwscanf_s_l
_sprintf_l
_sprintf_p
_sprintf_p_l
_sprintf_s_l
_sscanf_l
_sscanf_s_l
_swprintf
_swprintf_c
_swprintf_c_l
_swprintf_l
_swprintf_p
_swprintf_p_l
_swprintf_s_l
_swscanf_l
_swscanf_s_l
_vfprintf_l
_vfprintf_p
_vfprintf_p_l
_vfprintf_s_l
_vfscanf_l
_vfscanf_s_l
_vfwprintf_l
_vfwprintf_p
_vfwprintf_p_l
_vfwprintf_s_l
_vfwscanf_l
_vfwscanf_s_l
_vprintf_l
_vprintf_p
_vprintf_p_l
_vprintf_s_l
_vscanf_l
_vscanf_s_l
_vscprintf
_vscprintf_l
_vscprintf_p
_vscprintf_p_l
_vscwprintf
_vscwprintf_l
_vscwprintf_p
_vscwprintf_p_l
_vsnprintf
_vsnprintf_c
_vsnprintf_c_l
_vsnprintf_l
_vsnprintf_s
_vsnprintf_s_l
_vsnwprintf
_vsnwprintf_l
_vsnwprintf_s
_vsnwprintf_s_l
_vsnwscanf_l
_vsnwscanf_s_l
_vsprintf_l
_vsprintf_p
_vsprintf_p_l
_vsprintf_s_l
_vsscanf_l
_vsscanf_s_l
_vswprintf
_vswprintf_c
_vswprintf_c_l
_vswprintf_l
_vswprintf_p
_vswprintf_p_l
_vswprintf_s_l
_vswscanf_l
_vswscanf_s_l
_vwprintf_l
_vwprintf_p
_vwprintf_p_l
_vwprintf_s_l
_vwscanf_l
_vwscanf_s_l
_wprintf_l
_wprintf_p
_wprintf_p_l
_wprintf_s_l
_wscanf_l
_wscanf_s_l
fprintf
fprintf_s
fscanf
fscanf_s
fwprintf
fwprintf_s
fwscanf
fwscanf_s
printf
printf_s
scanf
scanf_s
snprintf
sprintf
sprintf_s
sscanf
sscanf_s
swprintf
swprintf_s
swscanf
swscanf_s
vfprintf
vfprintf_s
vfscanf
vfscanf_s
vfwprintf
vfwprintf_s
vfwscanf
vfwscanf_s
vprintf
vprintf_s
vscanf
vscanf_s
vsnprintf
vsnprintf_s
vsprintf
vsprintf_s
vsscanf
vsscanf_s
vswprintf
vswprintf_s
vswscanf
vswscanf_s
vwprintf
vwprintf_s
vwscanf
vwscanf_s
wprintf
wprintf_s
wscanf
wscanf_s

Sections

.text
Size: 159KB - Virtual size: 159KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 35KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
config
lua51.dll
.dll windows:6 windows x86 arch:x86

b66c5a0146817f7132284fd8fc6c1f20

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

GetLastError
SetLastError
VirtualAlloc
VirtualFree
VirtualQuery
VirtualProtect
FreeLibrary
GetModuleHandleExA
GetProcAddress
LoadLibraryExA
FormatMessageA
RaiseException
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
WaitForSingleObject
Sleep
CreateThread
RtlUnwind
GetModuleFileNameA
GetModuleHandleA
IsProcessorFeaturePresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
DisableThreadLibraryCalls
InitializeSListHead
IsDebuggerPresent

vcruntime140

memcpy
memset
memmove
__DestructExceptionObject
strchr
memchr
strstr
strrchr
__std_type_info_destroy_list
_except_handler4_common

api-ms-win-crt-runtime-l1-1-0

_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
_seh_filter_dll
_initterm_e
_initterm
_errno
strerror
system
_cexit
_execute_onexit_table
exit

api-ms-win-crt-stdio-l1-1-0

__stdio_common_vswprintf_s
__stdio_common_vswprintf
__stdio_common_vfwscanf
__stdio_common_vfwprintf_p
__stdio_common_vfwprintf_s
__stdio_common_vfwprintf
putchar
__acrt_iob_func
fgets
clearerr
_fseeki64
__stdio_common_vswscanf
getc
_pclose
_popen
setvbuf
tmpfile
ungetc
__stdio_common_vswprintf_p
__stdio_common_vfprintf
__p__fmode
fputs
__stdio_common_vsnwprintf_s
__stdio_common_vfprintf_s
__stdio_common_vfprintf_p
__stdio_common_vfscanf
fputc
fflush
tmpnam
fwrite
__stdio_common_vsprintf
fread
fopen
ferror
feof
fclose
__stdio_common_vsscanf
__stdio_common_vsprintf_p
__stdio_common_vsnprintf_s
_ftelli64
__stdio_common_vsprintf_s

api-ms-win-crt-string-l1-1-0

strncmp
strncpy
strlen

api-ms-win-crt-math-l1-1-0

log10
pow
sin
sinh
tan
tanh
ldexp
atan2
cos
cosh
exp
_libm_sse2_tan_precise
_libm_sse2_sqrt_precise
_libm_sse2_sin_precise
_libm_sse2_pow_precise
_libm_sse2_log_precise
_libm_sse2_log10_precise
_libm_sse2_exp_precise
log
_libm_sse2_cos_precise
_CIatan2
fmod
atan
acos
asin

api-ms-win-crt-convert-l1-1-0

strtoul

api-ms-win-crt-time-l1-1-0

_mktime64
strftime
_gmtime64
_time64
clock
_difftime64
_localtime64

api-ms-win-crt-filesystem-l1-1-0

rename
remove

api-ms-win-crt-environment-l1-1-0

getenv

api-ms-win-crt-locale-l1-1-0

setlocale

Exports

Exports

__swprintf_l
__vswprintf_l
_fprintf_l
_fprintf_p
_fprintf_p_l
_fprintf_s_l
_fscanf_l
_fscanf_s_l
_fwprintf_l
_fwprintf_p
_fwprintf_p_l
_fwprintf_s_l
_fwscanf_l
_fwscanf_s_l
_printf_l
_printf_p
_printf_p_l
_printf_s_l
_scanf_l
_scanf_s_l
_scprintf
_scprintf_l
_scprintf_p
_scprintf_p_l
_scwprintf
_scwprintf_l
_scwprintf_p
_scwprintf_p_l
_snprintf
_snprintf_c
_snprintf_c_l
_snprintf_l
_snprintf_s
_snprintf_s_l
_snscanf
_snscanf_l
_snscanf_s
_snscanf_s_l
_snwprintf
_snwprintf_l
_snwprintf_s
_snwprintf_s_l
_snwscanf
_snwscanf_l
_snwscanf_s
_snwscanf_s_l
_sprintf_l
_sprintf_p
_sprintf_p_l
_sprintf_s_l
_sscanf_l
_sscanf_s_l
_swprintf
_swprintf_c
_swprintf_c_l
_swprintf_l
_swprintf_p
_swprintf_p_l
_swprintf_s_l
_swscanf_l
_swscanf_s_l
_vfprintf_l
_vfprintf_p
_vfprintf_p_l
_vfprintf_s_l
_vfscanf_l
_vfscanf_s_l
_vfwprintf_l
_vfwprintf_p
_vfwprintf_p_l
_vfwprintf_s_l
_vfwscanf_l
_vfwscanf_s_l
_vprintf_l
_vprintf_p
_vprintf_p_l
_vprintf_s_l
_vscanf_l
_vscanf_s_l
_vscprintf
_vscprintf_l
_vscprintf_p
_vscprintf_p_l
_vscwprintf
_vscwprintf_l
_vscwprintf_p
_vscwprintf_p_l
_vsnprintf
_vsnprintf_c
_vsnprintf_c_l
_vsnprintf_l
_vsnprintf_s
_vsnprintf_s_l
_vsnwprintf
_vsnwprintf_l
_vsnwprintf_s
_vsnwprintf_s_l
_vsnwscanf_l
_vsnwscanf_s_l
_vsprintf_l
_vsprintf_p
_vsprintf_p_l
_vsprintf_s_l
_vsscanf_l
_vsscanf_s_l
_vswprintf
_vswprintf_c
_vswprintf_c_l
_vswprintf_l
_vswprintf_p
_vswprintf_p_l
_vswprintf_s_l
_vswscanf_l
_vswscanf_s_l
_vwprintf_l
_vwprintf_p
_vwprintf_p_l
_vwprintf_s_l
_vwscanf_l
_vwscanf_s_l
_wprintf_l
_wprintf_p
_wprintf_p_l
_wprintf_s_l
_wscanf_l
_wscanf_s_l
fprintf
fprintf_s
fscanf
fscanf_s
fwprintf
fwprintf_s
fwscanf
fwscanf_s
luaJIT_profile_dumpstack
luaJIT_profile_start
luaJIT_profile_stop
luaJIT_setmode
luaJIT_version_2_1_0_beta3
luaL_addlstring
luaL_addstring
luaL_addvalue
luaL_argerror
luaL_buffinit
luaL_callmeta
luaL_checkany
luaL_checkinteger
luaL_checklstring
luaL_checknumber
luaL_checkoption
luaL_checkstack
luaL_checktype
luaL_checkudata
luaL_error
luaL_execresult
luaL_fileresult
luaL_findtable
luaL_getmetafield
luaL_gsub
luaL_loadbuffer
luaL_loadbufferx
luaL_loadfile
luaL_loadfilex
luaL_loadstring
luaL_newmetatable
luaL_newstate
luaL_openlib
luaL_openlibs
luaL_optinteger
luaL_optlstring
luaL_optnumber
luaL_prepbuffer
luaL_pushmodule
luaL_pushresult
luaL_ref
luaL_register
luaL_setfuncs
luaL_setmetatable
luaL_testudata
luaL_traceback
luaL_typerror
luaL_unref
luaL_where
lua_atpanic
lua_call
lua_checkstack
lua_close
lua_concat
lua_copy
lua_cpcall
lua_createtable
lua_dump
lua_equal
lua_error
lua_gc
lua_getallocf
lua_getfenv
lua_getfield
lua_gethook
lua_gethookcount
lua_gethookmask
lua_getinfo
lua_getlocal
lua_getmetatable
lua_getstack
lua_gettable
lua_gettop
lua_getupvalue
lua_insert
lua_iscfunction
lua_isnumber
lua_isstring
lua_isuserdata
lua_isyieldable
lua_lessthan
lua_load
lua_loadx
lua_newstate
lua_newthread
lua_newuserdata
lua_next
lua_objlen
lua_pcall
lua_pushboolean
lua_pushcclosure
lua_pushfstring
lua_pushinteger
lua_pushlightuserdata
lua_pushlstring
lua_pushnil
lua_pushnumber
lua_pushstring
lua_pushthread
lua_pushvalue
lua_pushvfstring
lua_rawequal
lua_rawget
lua_rawgeti
lua_rawset
lua_rawseti
lua_remove
lua_replace
lua_resume
lua_setallocf
lua_setfenv
lua_setfield
lua_sethook
lua_setlocal
lua_setmetatable
lua_settable
lua_settop
lua_setupvalue
lua_status
lua_toboolean
lua_tocfunction
lua_tointeger
lua_tointegerx
lua_tolstring
lua_tonumber
lua_tonumberx
lua_topointer
lua_tothread
lua_touserdata
lua_type
lua_typename
lua_upvalueid
lua_upvaluejoin
lua_version
lua_xmove
lua_yield
luaopen_base
luaopen_bit
luaopen_debug
luaopen_ffi
luaopen_io
luaopen_jit
luaopen_math
luaopen_os
luaopen_package
luaopen_string
luaopen_table
printf
printf_s
scanf
scanf_s
snprintf
sprintf
sprintf_s
sscanf
sscanf_s
swprintf
swprintf_s
swscanf
swscanf_s
vfprintf
vfprintf_s
vfscanf
vfscanf_s
vfwprintf
vfwprintf_s
vfwscanf
vfwscanf_s
vprintf
vprintf_s
vscanf
vscanf_s
vsnprintf
vsnprintf_s
vsprintf
vsprintf_s
vsscanf
vsscanf_s
vswprintf
vswprintf_s
vswscanf
vswscanf_s
vwprintf
vwprintf_s
vwscanf
vwscanf_s
wprintf
wprintf_s
wscanf
wscanf_s

Sections

.text
Size: 348KB - Virtual size: 348KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 32KB - Virtual size: 32KB

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: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0c327287604442ee6d005a9e2ac6238a

Headers

DLL Characteristics

File Characteristics

Imports

lua51

kernel32

Exports

Exports

Sections

.text Size: 159KB - Virtual size: 159KB

.rdata Size: 35KB - Virtual size: 34KB

.data Size: 2KB - Virtual size: 4KB

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

b66c5a0146817f7132284fd8fc6c1f20

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

vcruntime140

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-environment-l1-1-0

api-ms-win-crt-locale-l1-1-0

Exports

Exports

Sections

.text Size: 348KB - Virtual size: 348KB

.rdata Size: 32KB - Virtual size: 32KB

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

.reloc Size: 7KB - Virtual size: 6KB

.text
Size: 159KB - Virtual size: 159KB

.rdata
Size: 35KB - Virtual size: 34KB

.data
Size: 2KB - Virtual size: 4KB

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

.text
Size: 348KB - Virtual size: 348KB

.rdata
Size: 32KB - Virtual size: 32KB

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

.reloc
Size: 7KB - Virtual size: 6KB