Malicious MS Excel Document analysis – 75b5d55e09f7

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File

Type

Microsoft Office Document

9 malicious · 62 files

XLS75b5d55e09f71307a4a28c15d14e7afbMS Excel DocumentATT&CK T1564.007

XML[Content_Types].xmlextracted from MS Excel Document · XML

BIN_rels

BINxl

XMLworkbook.xmlextracted from MS Excel Document · XML

BIN_rels

BINworksheets

BINtheme

XMLstyles.xmlextracted from MS Excel Document · XML

XMLsharedStrings.xmlextracted from MS Excel Document · XML

BINdrawings

BINmedia

OFFvbaProject.binextracted from MS Excel Document · MS Office DocumentATT&CK T1564.007

BINRoot Entry

BINPROJECTextracted from MS Office Document

BINPROJECTwmextracted from MS Office Document

BINVBA

BINdirextracted from MS Office Document

VBAMódulo1sub-stream · VBA ModuleATT&CK T1564.007

VBS[Stored VBA]code extracted · VBScriptATT&CK T1564.007

VBA[PCode]disassembled · VBA ModuleATT&CK T1564.007

VBS[Decompiled VBA]decompiled · VBScriptATT&CK T1564.007

VBA[Full Diff]generated · VBA ModuleATT&CK T1564.007

VBA[Partial Diff]generated · VBA ModuleATT&CK T1564.007

VBAMódulo2sub-stream · VBA Module

VBS[Stored VBA]code extracted · VBScript

VBA[PCode]disassembled · VBA Module

BIN__SRP_0extracted from MS Office Document

BIN__SRP_1extracted from MS Office Document

BIN__SRP_2extracted from MS Office Document

BIN__SRP_3extracted from MS Office Document

BIN__SRP_4extracted from MS Office Document

BIN__SRP_5extracted from MS Office Document

BIN__SRP_6extracted from MS Office Document

BIN__SRP_7extracted from MS Office Document

BIN__SRP_8extracted from MS Office Document

BIN__SRP_9extracted from MS Office Document

BIN_VBA_PROJECTextracted from MS Office Document

XMLcomments1.xmlextracted from MS Excel Document · XML

XMLcomments2.xmlextracted from MS Excel Document · XML

XMLcomments3.xmlextracted from MS Excel Document · XML

XMLcomments4.xmlextracted from MS Excel Document · XML

XMLcalcChain.xmlextracted from MS Excel Document · XML

BINdocProps

9 malicious · 62 files

XLS75b5d55e09f71307a4a28c15d14e7afbMS Excel DocumentATT&CK T1564.007

XML[Content_Types].xmlextracted from MS Excel Document · XML

BIN_rels

BINxl

XMLworkbook.xmlextracted from MS Excel Document · XML

BIN_rels

BINworksheets

BINtheme

XMLstyles.xmlextracted from MS Excel Document · XML

XMLsharedStrings.xmlextracted from MS Excel Document · XML

BINdrawings

BINmedia

OFFvbaProject.binextracted from MS Excel Document · MS Office DocumentATT&CK T1564.007

BINRoot Entry

BINPROJECTextracted from MS Office Document

BINPROJECTwmextracted from MS Office Document

BINVBA

BINdirextracted from MS Office Document

VBAMódulo1sub-stream · VBA ModuleATT&CK T1564.007

VBS[Stored VBA]code extracted · VBScriptATT&CK T1564.007

VBA[PCode]disassembled · VBA ModuleATT&CK T1564.007

VBS[Decompiled VBA]decompiled · VBScriptATT&CK T1564.007

VBA[Full Diff]generated · VBA ModuleATT&CK T1564.007

VBA[Partial Diff]generated · VBA ModuleATT&CK T1564.007

VBAMódulo2sub-stream · VBA Module

VBS[Stored VBA]code extracted · VBScript

VBA[PCode]disassembled · VBA Module

BIN__SRP_0extracted from MS Office Document

BIN__SRP_1extracted from MS Office Document

BIN__SRP_2extracted from MS Office Document

BIN__SRP_3extracted from MS Office Document

BIN__SRP_4extracted from MS Office Document

BIN__SRP_5extracted from MS Office Document

BIN__SRP_6extracted from MS Office Document

BIN__SRP_7extracted from MS Office Document

BIN__SRP_8extracted from MS Office Document

BIN__SRP_9extracted from MS Office Document

BIN_VBA_PROJECTextracted from MS Office Document

XMLcomments1.xmlextracted from MS Excel Document · XML

XMLcomments2.xmlextracted from MS Excel Document · XML

XMLcomments3.xmlextracted from MS Excel Document · XML

XMLcomments4.xmlextracted from MS Excel Document · XML

XMLcalcChain.xmlextracted from MS Excel Document · XML

BINdocProps

vbaDNA - VBA Stomping & Purging Stategy detection

	Module Name0
	Módulo1	VBA Stomping ATT&CK T1564.007 Malicious Malicious Document VBA Macro
PCode Decompiled VBA Stored VBA Partial Diff. Full Diff. Missing P-Code: The Office document under analysis has been identified as having undergone VBA Purging techniques, as the P-Code block within the document is currently inaccessible. As a result, the decompilation of the code was not possible, leaving only the stored code available in textual format for analysis. VBA Purging essentially involves the elimination of the PerformanceCache section from the module streams. To fully erase any traces of the P-Code section, the MODULEOFFSET between the two sections is adjusted to 0 by altering the _VBA_PROJECT stream, and all SRP streams that also house PerformanceCache data are removed. Following the removal of the compiled code, antivirus engines and Yara rules, which depend on precise string matches, are rendered ineffective. This allows macros to bypass them effortlessly, owing to the compressed format of the remaining source code.
	Módulo2	VBA Macro

No malware configuration was found at this point.

Coming soon: export of this report's indicators to MISP and EDR platforms.