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Guide 2020-06-10
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Summary | ZeroBOX

76792.xls

VBA_macro MSOffice File

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Aug. 10, 2021, 5:38 p.m.	Aug. 10, 2021, 5:41 p.m.

Size	142.0KB
Type	Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: BRT, Create Time/Date: Tue Aug 10 07:24:04 2021, Last Saved Time/Date: Tue Aug 10 07:24:09 2021, Security: 0
MD5	`c27e15e92fc6401b37346e1356b358d6`
SHA256	`67732ee8ba81cdd4855f6a208525ba600dcb5b3ace68f9befb9a81fb47d2adfd`
CRC32	`D794A315`
ssdeep	`3072:BwlYkEIuPm3fNRZmbaoFhZhR0cixIHm0DWsr5b4DdC45PV:alYkEIuPm3fNRZmbaoFhZhR0cixIHm0+`
Yara	Microsoft_Office_File_Zero - Microsoft Office File Contains_VBA_macro_code - Detect a MS Office document with embedded VBA macro code [binaries]

EXCEL.EXE "C:\Program Files (x86)\Microsoft Office\Office15\EXCEL.EXE" C:\Users\test22\AppData\Local\Temp\76792.xls
2320

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) (16 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6bf98000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6bc8e000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6b9fa000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x07e0f000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x6b982000 process_handle: 0xffffffff	1	0	0

Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) (1 event)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory Aug. 10, 2021, 5:38 p.m.	process_identifier: 2320 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 32 (PAGE_EXECUTE_READ) base_address: 0x7ef70000 process_handle: 0xffffffff	1	0	0