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

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Summary | ZeroBOX

211575.xls

VBA_macro MSOffice File

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Aug. 24, 2021, 11:55 a.m.	Aug. 24, 2021, 11:57 a.m.

Size	127.0KB
Type	Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: .brt, Create Time/Date: Mon Aug 23 10:05:36 2021, Last Saved Time/Date: Mon Aug 23 10:08:56 2021, Security: 0
MD5	`85eec686404e8d636c1d2e115f0a28a2`
SHA256	`2b674987c318c4e5e03820a97ec4f9d106c325a2fc57be7cba30b97a465ed87e`
CRC32	`AA563DA0`
ssdeep	`3072:NhlYkEIuPm3fNRZmbaoFhZhR0cixIHm09M9iSriG25PV:XlYkEIuPm3fNRZmbaoFhZhR0cixIHm0v`
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\211575.xls
2404

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. 24, 2021, 11:55 a.m.	process_identifier: 2404 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. 24, 2021, 11:55 a.m.	process_identifier: 2404 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. 24, 2021, 11:55 a.m.	process_identifier: 2404 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. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x06560000 process_handle: 0xffffffff	1	0	0
NtProtectVirtualMemory Aug. 24, 2021, 11:55 a.m.	process_identifier: 2404 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

File has been identified by 6 AntiVirus engines on VirusTotal as malicious (6 events)

Lionic	Trojan.Script.Generic.4!c
Cyren	X97M/Agent.ABU.gen!Eldorado
Symantec	Trojan.Mdropper
Kaspersky	HEUR:Trojan.Script.Generic
McAfee-GW-Edition	Artemis!Trojan
ZoneAlarm	HEUR:Trojan.Script.Generic

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. 24, 2021, 11:55 a.m.	process_identifier: 2404 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