Malicious PDF — malware analysis report

Static analysis result for SHA-256 201b16e9e8223c23…

MALICIOUS

PDF

36.7 KB Created: 2020-04-02 14:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b44d8d00bafbdb2c71ba980c1f7c70af SHA-1: ae2c68b06323604f8e31222203baac798f0e3e15 SHA-256: 201b16e9e8223c234dcc009b985bf78d0e7235a6755695f7754ffaa03b33a6ff
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to other PDFs, indicating a link farm designed to manipulate search engine results or distribute further malicious content. The document body text, though partially obfuscated, mentions 'Programming marantec garage door opener' and includes a primary URL that leads to a similar topic, suggesting a lure to disguise the malicious nature of the document. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://estudio-thuban.com/uploads/1/3/0/4/130435588/130435588.html#programming+marantec+garage+door+opener
    • http://toscakledingreparatierotterdam.nl/uploads/1/3/0/3/130323277/d5070034f.pdf
    • http://4cuteparties.com/uploads/1/3/0/5/130589189/tawip.pdf
    • http://beyondmindsetmastery.org/uploads/1/3/0/6/130621803/94ce91b9041284.pdf
    • http://sintonrobotics.org/uploads/1/3/0/7/130775828/3ba7526.pdf
    • http://gender2creativity.com/uploads/1/3/0/7/130738755/mudenomafi.pdf
    • http://cutthetags.com/uploads/1/3/1/3/131398351/gelex.pdf
    • http://terricayoung.com/uploads/1/3/0/6/130621374/xibevugowuwos-rerotov.pdf
    • http://castillolmt.com/uploads/1/3/0/8/130813819/9411249.pdf
    • http://256customs.com/uploads/1/3/0/7/130775062/6847586.pdf
    • http://canna-biz.cz/uploads/1/3/0/6/130639221/zilonixixukito.pdf
    • http://energyefficiententerprises.com/uploads/1/3/0/5/130543369/wugizi_zetapowupa_fojasusimumimig_bomezesodi.pdf
    • http://curiousproducts.net/uploads/1/3/0/2/130289346/zexunabel.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000663f.bin
86a96aaf5582b5b72bb28bfb92614a05fc13fd57655f794c7955f0847a749ff9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x663F 8128 bytes

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