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Guide 2020-06-10
Version history 2020-06-10

Summary | ZeroBOX

extracted_at_0x23f6b.rtf

MS_RTF_Obfuscation_Objects

Category	Machine	Started	Completed
FILE	s1_win7_x6401	March 16, 2023, 10:14 a.m.	March 16, 2023, 10:16 a.m.

Size	129.0B
Type	ASCII text, with no line terminators
MD5	`71b920a7f2f6042827fbafdfb026dbdd`
SHA256	`8fb30cfee18d86eea8d0cbb57b336988fb4af0b43aab3c1a5af3a8e081d6f0b7`
CRC32	`A28CC4CD`
ssdeep	`3:geRUFURXGXjDNXW0dvnQBWAYVEHvGNaMKJxXCHKQFkGY:V0XjDNGkvnQgDVueN/4XCHtA`
Yara	MS_RTF_Suspicious_documents - Suspicious documents using RTF document OLE object

WINWORD.EXE "C:\Program Files (x86)\Microsoft Office\Office12\WINWORD.EXE" C:\Users\test22\AppData\Local\Temp\extracted_at_0x23f6b.rtf
2568

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
No hosts contacted.

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Allocates read-write-execute memory (usually to unpack itself) (9 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 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 March 16, 2023, 9:19 a.m.	process_identifier: 2568 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6e541000 process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05c20000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05c20000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05c30000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtAllocateVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x05c40000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6e1f1000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6e1f4000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory March 16, 2023, 9:19 a.m.	process_identifier: 2568 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

Creates hidden or system file (1 event)

Time & API	Arguments	Status	Return	Repeated
NtCreateFile March 16, 2023, 9:19 a.m.	create_disposition: 5 (FILE_OVERWRITE_IF) file_handle: 0x000003f4 filepath: C:\Users\test22\AppData\Local\Temp\~$tracted_at_0x23f6b.rtf desired_access: 0x40100080 (FILE_READ_ATTRIBUTES\|SYNCHRONIZE\|GENERIC_WRITE) file_attributes: 2 (FILE_ATTRIBUTE_HIDDEN) filepath_r: \??\C:\Users\test22\AppData\Local\Temp\~$tracted_at_0x23f6b.rtf create_options: 4194400 (FILE_NON_DIRECTORY_FILE\|FILE_SYNCHRONOUS_IO_NONALERT) status_info: 2 (FILE_CREATED) share_access: 0 ()	1	0	0