Office (OLE) / .PPT malware analysis — malicious · 4a2173896009fd14

MALICIOUS

Office (OLE) / .PPT

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

MD5: 7c71eaf7075fb4f2341c6e96f62bdcd6 SHA-1: b0eea5f11255aa54de7b74222f8099332044cbd6 SHA-256: 4a2173896009fd1430ee3eebb4ac1c05502aafe2f33b4950ccc459d94f17ad96

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell

The sample is a PowerPoint file containing VBA macros. Heuristics indicate the presence of an Auto_Close macro and a Shell() call, suggesting the macros are intended to execute code upon closing the presentation. The critical heuristic 'OLE_VBA_PCODE_AUTOEXEC_EXEC' further confirms that the VBA p-code is set up for auto-execution using 'CreateObject'. No specific malware family could be identified, but the techniques used are consistent with a macro-based downloader or dropper.

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` `f2c8c263c37d7e436c9a0d316ff16ab80daca199858148ae0e035d32b6b860e1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2368 bytes

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