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

Static analysis result for SHA-256 7d39e7284cb1db0c…

MALICIOUS

Office (OLE) / .DOC

213.6 KB Created: 2020-09-21 12:09:00 Authoring application: Microsoft Office Word
MD5: 8e5a809a52559fe867ad23a10fdce39f SHA-1: d30fbd100a78af3e25dcbc05698d0b783f012caf SHA-256: 7d39e7284cb1db0c2b9ac91aa89a0134d88e4b7f5e9676567aa9881f2b15cf43
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is a malicious Office document containing VBA macros. The 'Document_open' macro is present and utilizes 'CreateObject' and 'GetObject' calls, indicating an attempt to execute code. The ClamAV heuristic also flags it as a downloader. The presence of VBA macros and the 'Document_open' auto-execution strongly suggest this document is designed to download and execute a secondary payload, aligning with the typical behavior of a macro-based downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764508-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764508-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
  • 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
cea30dbaa44bcaf57fbcd15c35be69cfffbad74d3b69c3addc059acf5ad797f9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19026 bytes

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