Malicious MS Excel Document analysis – ef5840f2543d

Get an AI-generated breakdown of this malware's behaviour, IOCs and recommendations.

AI analysis is available with Essential.

Unlock with Essential

File

Type

Microsoft Office Document

11 malicious · 74 files

XLSef5840f2543d5b8a68ba0ce3916767a5

XML[Content_Types].xml

BIN_rels

BINxl

XMLworkbook.xml

BIN_rels

BINworksheets

BINpivotTables

BINtheme

XMLstyles.xml

XMLsharedStrings.xml

BINdrawings

OFFvbaProject.bin

BINRoot Entry

BINPROJECT

BINPROJECTwm

BINVBA

BINdir

VBAModule1

VBS[Stored VBA]

VBA[PCode]

VBS[Decompiled VBA]

VBS[Full Diff]

VBA[Partial Diff]

VBAModule2

VBS[Stored VBA]

VBA[PCode]

VBAModule3

VBS[Stored VBA]

VBA[PCode]

BIN__SRP_0

BIN__SRP_1

BIN__SRP_2

BIN__SRP_3

BIN__SRP_4

BIN__SRP_5

BIN__SRP_6

BIN__SRP_7

BIN__SRP_8

BIN__SRP_9

BIN_VBA_PROJECT

BINexternalLinks

XMLexternalLink1.xml

BIN_rels

OFFexternalLink1.xml.rels

BINpivotCache

XMLconnections.xml

BINtables

BINqueryTables

BINprinterSettings

XMLcalcChain.xml

BINcustomXml

BINdocProps

Config. Field	Value
Target	file:/huhuhuhuhuhuhuhuhuhuhu
Path	externhuhuhuhuhuhuhu
XPath	/Relathuhuhuhuhuhuhuhuhuhuhu
Outer XML	<Relathuhuhuhuhuhuhuhuhuhuhu

We extracted this malware's full configuration (C2, credentials, campaign IDs…).

Unlock with Essential

Remote Template - Highly Suspicious URImalicious

file:/huhuhuhuhuhuhuhuhuhuhu

Full artefact values (URLs, paths, registry keys, scripts…) are available with Essential.

Unlock with Essential

	Module Name0
	Module1	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.
	Module2	Blacklist VBA VBA Macro
	Module3	VBA Macro