Office (OLE) / .PPT malware analysis — malicious · 7d9c5acc8e01171a

MALICIOUS

Office (OLE) / .PPT

153.0 KB Created: 2022-09-29 19:35:44 Authoring application: Microsoft Office PowerPoint

MD5: 4b5428c8c391e602732fb1e6ff7f201f SHA-1: b4f49b8d638b8e0152260751ee659fe03d221f82 SHA-256: 7d9c5acc8e01171a62e089ff7488f3335f26f55a1e7413cb83791210e79b1f1e

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically an Auto_Open function, which is designed to execute automatically when the presentation is opened. This macro references PowerShell and uses the `Shell` function to execute a command. The embedded URL `https://bitbucket.org` is likely used to download and execute a secondary payload. The ClamAV detection further supports its malicious nature.

Heuristics 6

ClamAV: Doc.Malware.Valyria-10007976-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Valyria-10007976-0
Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
Auto_Open macro high OLE_VBA_AUTO

Auto_Open 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
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL https://bitbucket.org

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `364847900b12689f1b602e4bbfd8633807322205b0ec47753d7de9879c3f5611`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4583 bytes

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