Malicious MS Excel Document analysis – 331768e73291

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File

Type

Microsoft Office Document

9 malicious · 42 files

XLS331768e73291d5c44cf46fe8150b57afMS Excel DocumentT1059.005 · ATT&CK T1564.007

BINdocProps

BINxl

BINdrawings

BINembeddings

BINmedia

XMLstyles.xmlextracted from MS Excel Document · XML

BINtheme

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

VBAModule2sub-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

VBS[Full Diff]generated · VBScriptT1059.005 · ATT&CK T1564.007

VBS[Full Diff].deobfuscated.vbsdeobfuscated · VBScriptT1059.005

VBS[Partial Diff]generated · VBScriptATT&CK T1564.007

BIN_VBA_PROJECTextracted from MS Office Document

XMLworkbook.xmlextracted from MS Excel Document · XML

BINworksheets

BIN_rels

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

BIN_rels

9 malicious · 42 files

XLS331768e73291d5c44cf46fe8150b57afMS Excel DocumentT1059.005 · ATT&CK T1564.007

BINdocProps

BINxl

BINdrawings

BINembeddings

BINmedia

XMLstyles.xmlextracted from MS Excel Document · XML

BINtheme

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

VBAModule2sub-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

VBS[Full Diff]generated · VBScriptT1059.005 · ATT&CK T1564.007

VBS[Full Diff].deobfuscated.vbsdeobfuscated · VBScriptT1059.005

VBS[Partial Diff]generated · VBScriptATT&CK T1564.007

BIN_VBA_PROJECTextracted from MS Office Document

XMLworkbook.xmlextracted from MS Excel Document · XML

BINworksheets

BIN_rels

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

BIN_rels

vbaDNA - VBA Stomping & Purging Stategy detection

	Module Name0
	Module2	VBA Stomping ATT&CK T1564.007 Malicious Malicious Document Blacklist VBA 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.

No malware configuration was found at this point.

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