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

Static analysis result for SHA-256 15646ceff08e62da…

MALICIOUS

Office (OLE) / .DOCX

218.5 KB Created: 2020-10-28 16:03:00 Authoring application: Microsoft Office Word
MD5: d6ed36810ad3fc3620c8a9317c150ab8 SHA-1: f4fcf863e132a0d79c6d4f42d64154309b9ba359 SHA-256: 15646ceff08e62da68192730a8cf18e0bcf03b873bb4670cba533c04e9f6adfd
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, including a Document_Open macro that uses CreateObject, indicating an attempt to execute code upon opening. The macros appear to be obfuscated, with functions like Svwlrkqkkky and Hl0stym7ipaups11 performing string manipulation and potentially preparing for execution. This behavior is consistent with a macro-based downloader designed to fetch and execute a second-stage payload.

Heuristics 6

  • 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.
  • 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
432b4517275395423e4145d722d6a456d77df175cda38550f4e26528858e8adb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18870 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.