Office (OLE) / .PPT malware analysis — malicious · a35992fbc29d008d

MALICIOUS

Office (OLE) / .PPT

91.5 KB Created: 2006-08-16 00:00:00 Authoring application: Microsoft Office PowerPoint

MD5: c8a5a2797a2df4b736e3bcb5131a33f2 SHA-1: 641f7685674a11d05f188bf61c4b22bea52a094a SHA-256: a35992fbc29d008d62396f4be7b7524c4f46ffa6cc769320d7b478117aa508b1

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 that utilizes the Shell() function. This indicates the macro is designed to execute arbitrary commands upon closing the presentation. The presence of the Shell() call and the Auto_Close trigger strongly suggests the intent is to download and execute a second-stage payload. The ClamAV detection further confirms its malicious nature.

Heuristics 5

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.W2000m-9765779-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.W2000m-9765779-0
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` `399c4ea54deb4ccb0d78f00a427283682aa91af07f283c5ae30b56d15809131b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2026 bytes

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