Logan — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 a9aab448fb96800b…

MALICIOUS

Office (OLE) / .DOCX

182.0 KB Created: 2020-10-22 12:14:00 Authoring application: Microsoft Office Word
MD5: 990df499a64a38375daab4725772af69 SHA-1: 8a060f16eab662fdb7697a8d09ae696ee12cce08 SHA-256: a9aab448fb96800b129f7f912d5da900789df5ee3ce7b94a02b89a9ed3efb388
240 Risk Score

Malware Insights

Logan · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious actions upon document opening. The critical ClamAV detection as 'Doc.Downloader.Logan-9781905-0' strongly indicates its downloader functionality. The presence of CreateObject calls further supports the execution of external code. The obfuscated document body text does not provide direct clues to the lure, but the overall evidence points to a macro-based downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
  • 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
312ef617e63493e61b3bcd46b3231fa9b7aec5a75b005f32edf123ee68ffccb7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18806 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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