Office (OLE) / .PPT malware analysis — malicious · df13b40c00806d33

MALICIOUS

Office (OLE) / .PPT

79.0 KB Created: 2020-09-16 22:55:08 Authoring application: Microsoft Office PowerPoint

MD5: 26b317dee4e61c417e069bd1eb7e6d90 SHA-1: 848dea07a68e8ca00f6f138caf6950294f0daff0 SHA-256: df13b40c00806d3300448ce9ac2e2476e22a4f627f1211c6d5bdeec1b38fadbe

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell

The sample is a PowerPoint file containing VBA macros, specifically an Auto_Close macro. Critical heuristics indicate the use of the Shell() function and VBA p-code execution, suggesting the macro attempts to run external commands. The Auto_Close macro is designed to execute automatically when the presentation is closed, facilitating the execution of a malicious payload. No specific family could be identified, but the techniques used are common for initial access and payload delivery.

Heuristics 5

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.W2000m-9775797-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.W2000m-9775797-0
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close macro
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `db25416a2415a35af0c18b282fd1b0a2773151bf9138cb62cb130af32828576c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2362 bytes

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