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

Static analysis result for SHA-256 839abc433704b3c9…

MALICIOUS

Office (OLE) / .DOC

238.8 KB
MD5: 44c25702ca6db895cf43aa1e6cb9a56f SHA-1: 5872638e829ccfeeae575b397f551ae21d360ac9 SHA-256: 839abc433704b3c9f252e4b68c75716c695fd3f83ea2663bfff7d1c5a5f5ce10
240 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically, utilizing 'CreateObject' which is a common technique for downloading and executing additional payloads. The ClamAV detection 'Doc.Downloader.Generic' further supports this assessment. No specific family could be identified, but the behavior indicates a downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
46bbf753c021dd824889110da33bb354da3f9a617de0713dd50b52c1bcf8132b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18397 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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