PDF malware analysis — malicious · 538f930b18576dd8

MALICIOUS

PDF

80.4 KB Created: 2020-08-09 23:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 499412034438b0b5c432ea32312342ad SHA-1: 32bf8c59e4663cf4645e6f7ef89533a8d02cbb37 SHA-256: 538f930b18576dd873c0941d0e3825121a23bf0edb0425973420ee7161f8785a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic firings indicate this is a link farm designed to generate traffic, likely for SEO purposes. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack pattern. No scripts were extracted, limiting further analysis of payload delivery.

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.cc/pify?keyword=historia+cristianismo+primitivo+pdf
- http://files.jemdesignz.com/uploads/1/3/1/4/131438583/d0ad087.pdf
- http://files.barbarascottwriter.com/uploads/1/3/1/6/131606758/b9dce9cb27ff53e.pdf
- http://files.vivithesupervegan.co.uk/uploads/1/3/2/8/132814898/vawigikex.pdf
- http://files.pilgrim-medj.com/uploads/1/3/0/7/130740066/nobujatukonusularid.pdf
- http://majelor.meowlinda.ca/uploads/1/3/1/4/131437736/e848b09efca062.pdf
- https://cdn.shopify.com/s/files/1/0429/5213/0716/files/39172789495.pdf
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/20890848926.pdf
- https://cdn.shopify.com/s/files/1/0431/7754/1787/files/ragirebe.pdf
- https://cdn.shopify.com/s/files/1/0429/2424/5155/files/illustrator_cs6_download.pdf
- https://cdn.shopify.com/s/files/1/0440/4117/5190/files/blog_de_descarga_de_libros_gratis.pdf
- https://cdn.shopify.com/s/files/1/0428/7676/4327/files/kukupupodurimuzujafiverul.pdf
- https://cdn.shopify.com/s/files/1/0437/5543/8234/files/motivagir.pdf
- https://cdn.shopify.com/s/files/1/0432/4494/5571/files/60897653112.pdf
- https://cdn.shopify.com/s/files/1/0447/9506/8565/files/the_architecture_reference_specification_book_free_download.pdf
- https://cdn.shopify.com/s/files/1/0437/9443/2161/files/kofenasirilato.pdf
- https://cdn.shopify.com/s/files/1/0429/2821/0073/files/39595666572.pdf
- https://cdn.shopify.com/s/files/1/0431/8858/4605/files/85064420127.pdf
- https://cdn.shopify.com/s/files/1/0434/6124/7129/files/whatcom_county_jail_roster.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_off0000faed.bin` `8e8bd92c50d9890d396843ad5b8315ef5dfcf87adfd608f1dd147d748e39d710`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFAED	5288 bytes
`font_01_sfnt_off00010cdb.bin` `fb0132064c0366fa03962217693b8658ed82143a0d8a0b995f600a3f16075245`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10CDB	11584 bytes

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