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

Static analysis result for SHA-256 f0e77efe2ed5bb77…

MALICIOUS

Office (OLE) / .DOCX

209.5 KB Created: 2020-09-21 19:39:00 Authoring application: Microsoft Office Word
MD5: b1d48a856718a94fd8fda62ef515ff30 SHA-1: 0b735866e72f27b27498e091e124d21aa95f14b2 SHA-256: f0e77efe2ed5bb775bfcefae4448ed8dfc00f824d1e9a9b5f6ea63624ee6a360
280 Risk Score

Malware Insights

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

The file is a malicious Office document containing VBA macros. The presence of 'Document_Open' and 'CreateObject' calls, along with a ClamAV detection for 'Doc.Downloader.Generic-9764637-0', strongly indicates that the macros are intended to download and execute a second-stage payload. The specific URL 'http://schemas.openxmlformats.org/drawingml/2006/main' was extracted, though it is confirmed benign and likely used as a decoy or part of a larger obfuscation scheme.

Heuristics 8

  • ClamAV: Doc.Downloader.Generic-9764637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764637-0
  • 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.
  • 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
4078e425aac0675c0d67424bcd647792033cab09565190ea70103f9b942a9f1f
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19109 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.