PDF malware analysis — malicious · af744400afd251a9

MALICIOUS

PDF

48.3 KB Created: 2020-08-08 00:48:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 57d361d1dce9949655757c12f8ba7071 SHA-1: 09a6183fa4ff923257c752527b262601465f3933 SHA-256: af744400afd251a94e5b604cfc0a00a39b271f8e45ac84e6a12dc581d652a1cc

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=caracteristicas+de+los+anelidos+pdf'. This suggests the document is part of a link farm or SEO poisoning campaign designed to redirect users to malicious infrastructure. No scripts were extracted from this sample.

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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 https://ttraff.ru/pify?keyword=caracteristicas+de+los+anelidos+pdf
- http://files.chandankhanal.com/uploads/1/3/2/6/132682787/telesatabidekowasa.pdf
- http://dobinojo.arlingtontherapyalliance.com/uploads/1/3/0/8/130814017/3fd9890a7c54.pdf
- http://rotik.friendsofcamplouisepa.org/uploads/1/3/0/8/130815009/nejanuve.pdf
- http://files.triberoastingco.com/uploads/1/3/1/0/131070362/wegarima_kadupaw.pdf
- https://cdn.shopify.com/s/files/1/0431/6243/5739/files/lidikakapebolaxuw.pdf
- https://cdn.shopify.com/s/files/1/0430/4083/3690/files/23939803335.pdf
- https://cdn.shopify.com/s/files/1/0429/9125/5713/files/ffxi_geomancer_guide.pdf
- https://cdn.shopify.com/s/files/1/0430/2936/4885/files/nanigox.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/97396620912.pdf
- https://cdn.shopify.com/s/files/1/0427/6705/7063/files/nivafezifirexeduxivowunux.pdf
- https://cdn.shopify.com/s/files/1/0432/0778/6654/files/lokoronaxowiso.pdf
- https://cdn.shopify.com/s/files/1/0437/0841/6165/files/makemkv_registration_code.pdf
- https://cdn.shopify.com/s/files/1/0429/9263/1962/files/taxepo.pdf
- https://cdn.shopify.com/s/files/1/0434/8693/7253/files/sukigoxuduzuwime.pdf
- https://cdn.shopify.com/s/files/1/0432/8056/4392/files/peguwaxafagedowojinuzofok.pdf
- https://cdn.shopify.com/s/files/1/0434/6377/0272/files/building_construction_mckay.pdf
- https://cdn.shopify.com/s/files/1/0431/2721/0144/files/iti_engineering_drawing_syllabus.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007f73.bin` `e503855b78e8eaff9ad496331c72bbf0de1b9e0bf82e07d526780ba852fe1b68`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F73	5052 bytes
`font_01_sfnt_off000090aa.bin` `1625487a82496aac918256c1ae53135e69ee72eaa5903b9e10dd2b42e4f10c58`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90AA	10912 bytes

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