Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a229326df677dc3…

MALICIOUS

PDF

32.4 KB Created: 2020-05-16 11:59:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95cd71fcb263ecd972e99960fee4bc5a SHA-1: 3b4742f94a1346d1e321f196fe176d1da1a979e6 SHA-256: 8a229326df677dc31a5744b1fb8a00559a1719f74f4a1b7ad0c8b74441ceccb3
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to direct users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to manipulate search engine results or distribute malware. The document body, though heavily obfuscated, contains text related to 'Cause and effect graphic organizer templates' and the URLs themselves point to similarly structured domains, suggesting a lure for educational or resource-seeking users.

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://smilehearthk.com/uploads/1/3/0/7/130739284/130739284.html#cause+and+effect+graphic+organizer+templates
    • http://organizedchaossl.com/uploads/1/3/0/4/130476940/pufot-zusazepu.pdf
    • http://energeticmotorsports.com/uploads/1/3/1/8/131871951/giviwuj.pdf
    • http://chrysalisstore.com/uploads/1/3/1/4/131406541/6442343.pdf
    • http://developmentalliance.org/uploads/1/3/1/1/131163695/kowadupe.pdf
    • http://ofssilentauction.org/uploads/1/3/0/4/130435680/32809a.pdf
    • http://sarahc.online/uploads/1/3/0/8/130873944/9ddef92f110f96.pdf
    • http://kardio-privat.com/uploads/1/3/1/4/131482866/bezusuwedazuwig.pdf
    • http://soyouthinkyoucandovoiceover.com/uploads/1/3/0/3/130324158/1995308.pdf
    • http://fortkortlaw.com/uploads/1/3/0/8/130813447/wanabepoberigu.pdf
    • http://genonthe.net/uploads/1/3/0/6/130639685/78a8d6d72.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_off00005320.bin
7fae39412a5d6496f973a2c62ad2d7702a8d79cb1e33b83eec47ef5aad8a998e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5320 10792 bytes

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