Summary | ZeroBOX

file.rtf

doc RTF File
Category Machine Started Completed
FILE s1_win7_x6401 April 22, 2021, 9:50 a.m. April 22, 2021, 9:53 a.m.
Size 36.2KB
Type Rich Text Format data, version 1, unknown character set
MD5 9ca89139d0918e5078122113fc883a7e
SHA256 964158c6194c749d2cfc79d3e40ce26c4a3827566b59590c3b25ef14c82e449f
CRC32 464F6E65
ssdeep 768:5C3VZ/vmwTde7KZciHYOX7tKim4iB11tRClT:5C3VZ/vmwTde7KZciHYOX7tKim4iBkT
Yara
  • Rich_Text_Format_Zero - Rich Text Format Signature Zero

Name Response Post-Analysis Lookup
mofa.iugur.live 185.163.45.56
IP Address Status Action
164.124.101.2 Active Moloch
185.163.45.56 Active Moloch

Suricata Alerts

Flow SID Signature Category
TCP 192.168.56.101:49201 -> 185.163.45.56:443 906200056 SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee) undefined

Suricata TLS

Flow Issuer Subject Fingerprint
TLSv1
192.168.56.101:49201
185.163.45.56:443
C=US, O=Let's Encrypt, CN=R3 CN=*.iugur.live e3:d0:2e:6f:dd:cc:f9:aa:87:9f:48:cc:c6:70:fc:71:9b:74:f8:ec

Time & API Arguments Status Return Repeated

__exception__

stacktrace:
RpcRaiseException+0x42 I_RpcExceptionFilter-0x12 rpcrt4+0x2374b @ 0x74d5374b
DllDebugObjectRPCHook+0xb6 HACCEL_UserFree-0x57 ole32+0x13f725 @ 0x74bff725
NdrPointerFree+0x16a IUnknown_Release_Proxy-0x5a rpcrt4+0x3414b @ 0x74d6414b
WdtpInterfacePointer_UserUnmarshal+0x166b DllDebugObjectRPCHook-0x2d8d ole32+0x13c8e2 @ 0x74bfc8e2
CoRegisterMessageFilter+0x32b4 ObjectStublessClient5-0x1db5 ole32+0x398ad @ 0x74af98ad
OleCreateEmbeddingHelper+0x2a1 CreateFileMoniker-0x17de ole32+0x81414 @ 0x74b41414
ObjectStublessClient31+0x6af8 STGMEDIUM_UserUnmarshal-0x22bb6 ole32+0x97b68 @ 0x74b57b68
wdGetApplicationObject+0x131f9 wdCommandDispatch-0x4c476 wwlib+0x394dff @ 0x6fee4dff
DllCanUnloadNow+0xbaf5e wwlib+0x9692a0 @ 0x704b92a0
DllCanUnloadNow+0x339ef0 wwlib+0xbe8232 @ 0x70738232
DllCanUnloadNow+0x54e0c9 wwlib+0xdfc40b @ 0x7094c40b
DllCanUnloadNow+0x55865b wwlib+0xe0699d @ 0x7095699d
DllCanUnloadNow+0x33bec4 wwlib+0xbea206 @ 0x7073a206
DllCanUnloadNow+0xbd684 wwlib+0x96b9c6 @ 0x704bb9c6
DllCanUnloadNow+0x215f8 wwlib+0x8cf93a @ 0x7041f93a
DllGetClassObject+0x2d9ac DllGetLCID-0x22ded4 wwlib+0x325f6 @ 0x6fb825f6
DllGetClassObject+0x5b213 DllGetLCID-0x20066d wwlib+0x5fe5d @ 0x6fbafe5d
DllGetClassObject+0x5a904 DllGetLCID-0x200f7c wwlib+0x5f54e @ 0x6fbaf54e
DllCanUnloadNow+0x3200d6 wwlib+0xbce418 @ 0x7071e418
DllCanUnloadNow+0x2d334c wwlib+0xb8168e @ 0x706d168e
DllGetClassObject+0x157e7 DllGetLCID-0x246099 wwlib+0x1a431 @ 0x6fb6a431
DllGetClassObject+0x3b23 DllGetLCID-0x257d5d wwlib+0x876d @ 0x6fb5876d
FMain+0x482 DllGetClassObject-0x266 wwlib+0x49e4 @ 0x6fb549e4
wdCommandDispatch-0x2ed winword+0x15d7 @ 0x2f5415d7
wdCommandDispatch-0x367 winword+0x155d @ 0x2f54155d
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x757333ca
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xb727
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0x800706be
exception.offset: 46887
exception.address: 0x76a7b727
registers.esp: 1854340
registers.edi: 1957755408
registers.eax: 1854340
registers.ebp: 1854420
registers.edx: 0
registers.ebx: 5517532
registers.esi: 2147944126
registers.ecx: 3264127143
1 0 0

__exception__

stacktrace:
RpcRaiseException+0x42 I_RpcExceptionFilter-0x12 rpcrt4+0x2374b @ 0x74d5374b
DllDebugObjectRPCHook+0xb6 HACCEL_UserFree-0x57 ole32+0x13f725 @ 0x74bff725
NdrPointerFree+0x16a IUnknown_Release_Proxy-0x5a rpcrt4+0x3414b @ 0x74d6414b
WdtpInterfacePointer_UserUnmarshal+0x166b DllDebugObjectRPCHook-0x2d8d ole32+0x13c8e2 @ 0x74bfc8e2
CoRegisterMessageFilter+0x32b4 ObjectStublessClient5-0x1db5 ole32+0x398ad @ 0x74af98ad
CoRegisterMessageFilter+0x5048 ObjectStublessClient5-0x21 ole32+0x3b641 @ 0x74afb641
CoRegisterMessageFilter+0x4ff4 ObjectStublessClient5-0x75 ole32+0x3b5ed @ 0x74afb5ed
CoRegisterMessageFilter+0x4b79 ObjectStublessClient5-0x4f0 ole32+0x3b172 @ 0x74afb172
CoRegisterMessageFilter+0x4075 ObjectStublessClient5-0xff4 ole32+0x3a66e @ 0x74afa66e
ObjectStublessClient31+0x2961c STGMEDIUM_UserUnmarshal-0x92 ole32+0xba68c @ 0x74b7a68c
ObjectStublessClient31+0x6776 STGMEDIUM_UserUnmarshal-0x22f38 ole32+0x977e6 @ 0x74b577e6
OleCreateEmbeddingHelper+0x344 CreateFileMoniker-0x173b ole32+0x814b7 @ 0x74b414b7
ObjectStublessClient31+0x6af8 STGMEDIUM_UserUnmarshal-0x22bb6 ole32+0x97b68 @ 0x74b57b68
wdGetApplicationObject+0x131f9 wdCommandDispatch-0x4c476 wwlib+0x394dff @ 0x6fee4dff
DllCanUnloadNow+0xbaf5e wwlib+0x9692a0 @ 0x704b92a0
DllCanUnloadNow+0x339ef0 wwlib+0xbe8232 @ 0x70738232
DllCanUnloadNow+0x54e0c9 wwlib+0xdfc40b @ 0x7094c40b
DllCanUnloadNow+0x55865b wwlib+0xe0699d @ 0x7095699d
DllCanUnloadNow+0x33bec4 wwlib+0xbea206 @ 0x7073a206
DllCanUnloadNow+0xbd684 wwlib+0x96b9c6 @ 0x704bb9c6
DllCanUnloadNow+0x215f8 wwlib+0x8cf93a @ 0x7041f93a
DllGetClassObject+0x2d9ac DllGetLCID-0x22ded4 wwlib+0x325f6 @ 0x6fb825f6
DllGetClassObject+0x5b213 DllGetLCID-0x20066d wwlib+0x5fe5d @ 0x6fbafe5d
DllGetClassObject+0x5a904 DllGetLCID-0x200f7c wwlib+0x5f54e @ 0x6fbaf54e
DllCanUnloadNow+0x3200d6 wwlib+0xbce418 @ 0x7071e418
DllCanUnloadNow+0x2d334c wwlib+0xb8168e @ 0x706d168e
DllGetClassObject+0x157e7 DllGetLCID-0x246099 wwlib+0x1a431 @ 0x6fb6a431
DllGetClassObject+0x3b23 DllGetLCID-0x257d5d wwlib+0x876d @ 0x6fb5876d
FMain+0x482 DllGetClassObject-0x266 wwlib+0x49e4 @ 0x6fb549e4
wdCommandDispatch-0x2ed winword+0x15d7 @ 0x2f5415d7
wdCommandDispatch-0x367 winword+0x155d @ 0x2f54155d
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x757333ca
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xb727
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0x800706ba
exception.offset: 46887
exception.address: 0x76a7b727
registers.esp: 1854032
registers.edi: 1957755408
registers.eax: 1854032
registers.ebp: 1854112
registers.edx: 0
registers.ebx: 5517028
registers.esi: 2147944122
registers.ecx: 3264127143
1 0 0
suspicious_features GET method with no useragent header suspicious_request GET https://mofa.iugur.live/2623/1/45326/3/3/0/1840589382/files-72843a7a/0/data?d=
suspicious_features GET method with no useragent header suspicious_request GET https://mofa.iugur.live/2623/1/45326/3/1/1/1840589382/files-52f76d0b/0/
suspicious_features GET method with no useragent header suspicious_request GET https://mofa.iugur.live/2623/1/45326/3/3/0/1840589382/files-72843a7a/0/data?d=&e=%EC%9B%90%EA%B2%A9%20%EC%84%9C%EB%B2%84%EC%97%90%EC%84%9C%20(404)%20%EC%B0%BE%EC%9D%84%20%EC%88%98%20%EC%97%86%EC%9D%8C%20%EC%98%A4%EB%A5%98%EB%A5%BC%20%EB%B0%98%ED%99%98%ED%96%88%EC%8A%B5%EB%8B%88%EB%8B%A4.
request GET https://mofa.iugur.live/2623/1/45326/3/3/0/1840589382/files-72843a7a/0/data?d=
request GET https://mofa.iugur.live/2623/1/45326/3/1/1/1840589382/files-52f76d0b/0/
request GET https://mofa.iugur.live/2623/1/45326/3/3/0/1840589382/files-72843a7a/0/data?d=&e=%EC%9B%90%EA%B2%A9%20%EC%84%9C%EB%B2%84%EC%97%90%EC%84%9C%20(404)%20%EC%B0%BE%EC%9D%84%20%EC%88%98%20%EC%97%86%EC%9D%8C%20%EC%98%A4%EB%A5%98%EB%A5%BC%20%EB%B0%98%ED%99%98%ED%96%88%EC%8A%B5%EB%8B%88%EB%8B%A4.
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

process_identifier: 872
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6ca11000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 872
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x65001000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 872
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6c971000
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 872
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x05fb0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 872
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x05fb0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 872
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x05fc0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

process_identifier: 872
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x05fd0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 872
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6c6b1000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 872
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x6c6b4000
process_handle: 0xffffffff
1 0 0

NtProtectVirtualMemory

process_identifier: 872
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
length: 4096
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x507c1000
process_handle: 0xffffffff
1 0 0
Application Crash Process WINWORD.EXE with pid 872 crashed
Time & API Arguments Status Return Repeated

__exception__

stacktrace:
RpcRaiseException+0x42 I_RpcExceptionFilter-0x12 rpcrt4+0x2374b @ 0x74d5374b
DllDebugObjectRPCHook+0xb6 HACCEL_UserFree-0x57 ole32+0x13f725 @ 0x74bff725
NdrPointerFree+0x16a IUnknown_Release_Proxy-0x5a rpcrt4+0x3414b @ 0x74d6414b
WdtpInterfacePointer_UserUnmarshal+0x166b DllDebugObjectRPCHook-0x2d8d ole32+0x13c8e2 @ 0x74bfc8e2
CoRegisterMessageFilter+0x32b4 ObjectStublessClient5-0x1db5 ole32+0x398ad @ 0x74af98ad
OleCreateEmbeddingHelper+0x2a1 CreateFileMoniker-0x17de ole32+0x81414 @ 0x74b41414
ObjectStublessClient31+0x6af8 STGMEDIUM_UserUnmarshal-0x22bb6 ole32+0x97b68 @ 0x74b57b68
wdGetApplicationObject+0x131f9 wdCommandDispatch-0x4c476 wwlib+0x394dff @ 0x6fee4dff
DllCanUnloadNow+0xbaf5e wwlib+0x9692a0 @ 0x704b92a0
DllCanUnloadNow+0x339ef0 wwlib+0xbe8232 @ 0x70738232
DllCanUnloadNow+0x54e0c9 wwlib+0xdfc40b @ 0x7094c40b
DllCanUnloadNow+0x55865b wwlib+0xe0699d @ 0x7095699d
DllCanUnloadNow+0x33bec4 wwlib+0xbea206 @ 0x7073a206
DllCanUnloadNow+0xbd684 wwlib+0x96b9c6 @ 0x704bb9c6
DllCanUnloadNow+0x215f8 wwlib+0x8cf93a @ 0x7041f93a
DllGetClassObject+0x2d9ac DllGetLCID-0x22ded4 wwlib+0x325f6 @ 0x6fb825f6
DllGetClassObject+0x5b213 DllGetLCID-0x20066d wwlib+0x5fe5d @ 0x6fbafe5d
DllGetClassObject+0x5a904 DllGetLCID-0x200f7c wwlib+0x5f54e @ 0x6fbaf54e
DllCanUnloadNow+0x3200d6 wwlib+0xbce418 @ 0x7071e418
DllCanUnloadNow+0x2d334c wwlib+0xb8168e @ 0x706d168e
DllGetClassObject+0x157e7 DllGetLCID-0x246099 wwlib+0x1a431 @ 0x6fb6a431
DllGetClassObject+0x3b23 DllGetLCID-0x257d5d wwlib+0x876d @ 0x6fb5876d
FMain+0x482 DllGetClassObject-0x266 wwlib+0x49e4 @ 0x6fb549e4
wdCommandDispatch-0x2ed winword+0x15d7 @ 0x2f5415d7
wdCommandDispatch-0x367 winword+0x155d @ 0x2f54155d
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x757333ca
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xb727
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0x800706be
exception.offset: 46887
exception.address: 0x76a7b727
registers.esp: 1854340
registers.edi: 1957755408
registers.eax: 1854340
registers.ebp: 1854420
registers.edx: 0
registers.ebx: 5517532
registers.esi: 2147944126
registers.ecx: 3264127143
1 0 0

__exception__

stacktrace:
RpcRaiseException+0x42 I_RpcExceptionFilter-0x12 rpcrt4+0x2374b @ 0x74d5374b
DllDebugObjectRPCHook+0xb6 HACCEL_UserFree-0x57 ole32+0x13f725 @ 0x74bff725
NdrPointerFree+0x16a IUnknown_Release_Proxy-0x5a rpcrt4+0x3414b @ 0x74d6414b
WdtpInterfacePointer_UserUnmarshal+0x166b DllDebugObjectRPCHook-0x2d8d ole32+0x13c8e2 @ 0x74bfc8e2
CoRegisterMessageFilter+0x32b4 ObjectStublessClient5-0x1db5 ole32+0x398ad @ 0x74af98ad
CoRegisterMessageFilter+0x5048 ObjectStublessClient5-0x21 ole32+0x3b641 @ 0x74afb641
CoRegisterMessageFilter+0x4ff4 ObjectStublessClient5-0x75 ole32+0x3b5ed @ 0x74afb5ed
CoRegisterMessageFilter+0x4b79 ObjectStublessClient5-0x4f0 ole32+0x3b172 @ 0x74afb172
CoRegisterMessageFilter+0x4075 ObjectStublessClient5-0xff4 ole32+0x3a66e @ 0x74afa66e
ObjectStublessClient31+0x2961c STGMEDIUM_UserUnmarshal-0x92 ole32+0xba68c @ 0x74b7a68c
ObjectStublessClient31+0x6776 STGMEDIUM_UserUnmarshal-0x22f38 ole32+0x977e6 @ 0x74b577e6
OleCreateEmbeddingHelper+0x344 CreateFileMoniker-0x173b ole32+0x814b7 @ 0x74b414b7
ObjectStublessClient31+0x6af8 STGMEDIUM_UserUnmarshal-0x22bb6 ole32+0x97b68 @ 0x74b57b68
wdGetApplicationObject+0x131f9 wdCommandDispatch-0x4c476 wwlib+0x394dff @ 0x6fee4dff
DllCanUnloadNow+0xbaf5e wwlib+0x9692a0 @ 0x704b92a0
DllCanUnloadNow+0x339ef0 wwlib+0xbe8232 @ 0x70738232
DllCanUnloadNow+0x54e0c9 wwlib+0xdfc40b @ 0x7094c40b
DllCanUnloadNow+0x55865b wwlib+0xe0699d @ 0x7095699d
DllCanUnloadNow+0x33bec4 wwlib+0xbea206 @ 0x7073a206
DllCanUnloadNow+0xbd684 wwlib+0x96b9c6 @ 0x704bb9c6
DllCanUnloadNow+0x215f8 wwlib+0x8cf93a @ 0x7041f93a
DllGetClassObject+0x2d9ac DllGetLCID-0x22ded4 wwlib+0x325f6 @ 0x6fb825f6
DllGetClassObject+0x5b213 DllGetLCID-0x20066d wwlib+0x5fe5d @ 0x6fbafe5d
DllGetClassObject+0x5a904 DllGetLCID-0x200f7c wwlib+0x5f54e @ 0x6fbaf54e
DllCanUnloadNow+0x3200d6 wwlib+0xbce418 @ 0x7071e418
DllCanUnloadNow+0x2d334c wwlib+0xb8168e @ 0x706d168e
DllGetClassObject+0x157e7 DllGetLCID-0x246099 wwlib+0x1a431 @ 0x6fb6a431
DllGetClassObject+0x3b23 DllGetLCID-0x257d5d wwlib+0x876d @ 0x6fb5876d
FMain+0x482 DllGetClassObject-0x266 wwlib+0x49e4 @ 0x6fb549e4
wdCommandDispatch-0x2ed winword+0x15d7 @ 0x2f5415d7
wdCommandDispatch-0x367 winword+0x155d @ 0x2f54155d
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133ca @ 0x757333ca
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa1 ntdll+0x39ed2 @ 0x773d9ed2
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xce ntdll+0x39ea5 @ 0x773d9ea5

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xb727
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0x800706ba
exception.offset: 46887
exception.address: 0x76a7b727
registers.esp: 1854032
registers.edi: 1957755408
registers.eax: 1854032
registers.ebp: 1854112
registers.edx: 0
registers.ebx: 5517028
registers.esi: 2147944122
registers.ecx: 3264127143
1 0 0
Time & API Arguments Status Return Repeated

NtCreateFile

create_disposition: 5 (FILE_OVERWRITE_IF)
file_handle: 0x000003ec
filepath: C:\Users\test22\AppData\Local\Temp\~$file.rtf
desired_access: 0x40100080 (FILE_READ_ATTRIBUTES|SYNCHRONIZE|GENERIC_WRITE)
file_attributes: 2 (FILE_ATTRIBUTE_HIDDEN)
filepath_r: \??\C:\Users\test22\AppData\Local\Temp\~$file.rtf
create_options: 4194400 (FILE_NON_DIRECTORY_FILE|FILE_SYNCHRONOUS_IO_NONALERT)
status_info: 2 (FILE_CREATED)
share_access: 0 ()
1 0 0
filetype_details Rich Text Format data, version 1, unknown character set filename file.rtf