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

Static analysis result for SHA-256 26ecd84d3c7a3cb4…

MALICIOUS

Office (OLE) / .DOC

259.4 KB Created: 2020-10-29 06:37:00 Authoring application: Microsoft Office Word
MD5: bb764ef15a822fa63c945ba9177cb74c SHA-1: 0ff1d804518049e6e2dd6b93acdde727a1b696f2 SHA-256: 26ecd84d3c7a3cb416d832a5695934324e8d2b2eb5d44a4d3103d0eff7a7dfd6
240 Risk Score

Malware Insights

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The Document_Open macro is designed to run automatically, and the CreateObject call suggests the creation of objects to facilitate further malicious actions, likely downloading and executing a payload. The embedded URL, though benign according to its label, is present in the document text, which is typical for phishing or social engineering lures.

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
12b7996d43f09fffd0e41873c4fd3eb12cef1de614d36e85e4ac67c8f36943df
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18851 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.