Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 cc3c4cc183d54d8e…

MALICIOUS

Office (OLE)

40.0 KB Created: 2019-07-08 06:30:00 Authoring application: Microsoft Office Word
MD5: 60a33e5b013b0dd04f7bbb1594b26815 SHA-1: b80fbf70ea131b6e07f3e2151397dac993f36626 SHA-256: cc3c4cc183d54d8e69b019a582febd8419f70883975bf65e2fccb45ffaf38c50
122 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro designed to execute code upon opening. The macro attempts to overwrite itself and potentially download a secondary payload, indicated by the 'APMPKILL' strings and the general behavior of Document_Open macros. The document body is in Chinese and appears to be a meeting notice, suggesting a lure unrelated to the malicious payload.

Heuristics 4

  • ClamAV: Doc.Macro.APMPKILL-6097118-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Macro.APMPKILL-6097118-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • 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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f136142b40965ce41763caed3acb0ccab48ef04e860145c7f9d9ef01967df9ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1027 bytes

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