Malicious Office (OLE) / .PPT — malware analysis report

Static analysis result for SHA-256 59dd900bd489a495…

MALICIOUS

Office (OLE) / .PPT

63.5 KB Created: 2021-04-05 23:08:55 Authoring application: Microsoft Office PowerPoint
MD5: b80131ec20b69da33dec1c7341f52e05 SHA-1: 829e3833a66474089639fecad112b8e94efe542e SHA-256: 59dd900bd489a495491ced38eff580d3b1708c3586d006f3972fd6a44b2e5a45
200 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a PowerPoint presentation containing embedded VBA macros, specifically an Auto_Close macro designed to execute when the presentation is closed. The presence of GetObject calls and VBA p-code auto-execution indicates malicious intent. The ClamAV detection as Ppt.Malware.Valyria-10026465-0 further confirms its malicious nature. The macros are likely designed to download and execute a second-stage payload.

Heuristics 5

  • ClamAV: Ppt.Malware.Valyria-10026465-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Ppt.Malware.Valyria-10026465-0
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • 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.

FilenameKindSourceSize
macros.bas
8b0761be6d370a7670ce49ac05d83d4544458f990c03f32bcffe148f9b72e425		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 933 bytes

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