Malicious ZIP Archive analysis – 1075f06ae452

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File

Type

ZIP archive

7 malicious · 23 files

ZIP1075f0_8268.binZIP ArchiveATT&CK T1564.007

DOCInvoice.xlsextracted from ZIP Archive · MS Word DocumentATT&CK T1564.007

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

BIN_rels

BINword

XMLdocument.xmlextracted from MS Word Document · XML

BIN_rels

XMLfontTable.xmlextracted from MS Word Document · XML

XMLsettings.xmlextracted from MS Word Document · XML

XMLstyles.xmlextracted from MS Word Document · XML

BINtheme

XMLvbaData.xmlextracted from MS Word Document · XML

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

BIN.

BINRoot Entry

BINVBA

BINdirextracted from MS Office Document

VBAKronosModulesub-stream · VBA ModuleATT&CK T1564.007

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

VBAThisDocumentsub-stream · VBA ModuleATT&CK T1564.007

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

BIN_VBA_PROJECTextracted from MS Office Document

BINPROJECTextracted from MS Office Document

XMLwebSettings.xmlextracted from MS Word Document · XML

BINdocProps

7 malicious · 23 files

ZIP1075f0_8268.binZIP ArchiveATT&CK T1564.007

DOCInvoice.xlsextracted from ZIP Archive · MS Word DocumentATT&CK T1564.007

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

BIN_rels

BINword

XMLdocument.xmlextracted from MS Word Document · XML

BIN_rels

XMLfontTable.xmlextracted from MS Word Document · XML

XMLsettings.xmlextracted from MS Word Document · XML

XMLstyles.xmlextracted from MS Word Document · XML

BINtheme

XMLvbaData.xmlextracted from MS Word Document · XML

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

BIN.

BINRoot Entry

BINVBA

BINdirextracted from MS Office Document

VBAKronosModulesub-stream · VBA ModuleATT&CK T1564.007

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

VBAThisDocumentsub-stream · VBA ModuleATT&CK T1564.007

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

BIN_VBA_PROJECTextracted from MS Office Document

BINPROJECTextracted from MS Office Document

XMLwebSettings.xmlextracted from MS Word Document · XML

BINdocProps

vbaDNA - VBA Stomping & Purging Stategy detection

	Module Name0
	KronosModule	Blacklist VBA VBA Macro VBA Purging ATT&CK T1564.007
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.
	ThisDocument	VBA Macro VBA Purging ATT&CK T1564.007
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.