Logan — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 539365559591e275…

MALICIOUS

Office (OLE) / .DOCX

182.0 KB Created: 2020-10-22 12:14:00 Authoring application: Microsoft Office Word
MD5: 4e0c61c3694bbef09af66abff4320346 SHA-1: 71b353a297f69a9afa156458af2cdcd9c3b7e423 SHA-256: 539365559591e27530fac0279af96eac60f4a6903037c3056672ef40518c3de7
240 Risk Score

Malware Insights

Logan · confidence 95%

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

The file contains VBA macros, specifically a Document_Open auto-exec macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as 'Doc.Downloader.Logan-9781905-0', suggesting it's a downloader. The macro's execution of CreateObject points towards its capability to download and execute further stages. The obfuscated document body text does not provide direct clues to the lure, but the technical indicators are clear.

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.