Malicious PDF — malware analysis report

Static analysis result for SHA-256 55ae1352e09be547…

MALICIOUS

PDF

37.1 KB Created: 2020-08-27 17:03:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84e71078db18e57385b9218bd6fed2d6 SHA-1: d9b87d487874ca8e17e5ef5b800a140e3684f6ad SHA-256: 55ae1352e09be547c14c32b0c5928abc18d7ffe4e8eacb7b7a5e92e05daba3d7
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 a link farm hosted on Shopify. One of these links redirects to a known malicious domain, ttraff.cc, which is likely used for further redirection or malware delivery. The document body contains text related to downloading free Christian books for young people, serving as a lure. The presence of a malicious redirector link and the link farm structure strongly suggest a phishing or malware distribution attempt.

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=descargar+libros+cristianos+gratis+para+jovenes
    • http://botakufo.stalbridgearchive.co.uk/uploads/1/3/1/4/131436967/gufobugafelawop.pdf
    • http://seriwe.huffmansflowersofthefield.com/uploads/1/3/0/7/130739892/jopegutoro.pdf
    • https://cdn.shopify.com/s/files/1/0438/4299/4336/files/kezeniwumorerisu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7912/files/puzzledom_shikaku_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/3_2012_tamil_film.pdf
    • https://cdn.shopify.com/s/files/1/0432/2459/6642/files/jodavudedusulupoge.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/xofaber.pdf
    • https://cdn.shopify.com/s/files/1/0438/4446/8898/files/rafemapurilawata.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/adhyatma_ramayanam_tamil_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/7761/5262/files/85447214822.pdf
    • https://cdn.shopify.com/s/files/1/0429/7955/7539/files/61284900449.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/gijev.pdf
    • https://cdn.shopify.com/s/files/1/0431/1610/1781/files/69671717848.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.

FilenameKindSourceSize
font_00_sfnt_off000050ea.bin
f692fadd66a07eb054723f14b6638579db4061712f9f54ffa53205009c397b13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50EA 5376 bytes
font_01_sfnt_off0000634a.bin
fd673660d71ce07bd807ae5b9b1abc41d486e964fa080a81a7f73352864e97a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x634A 11088 bytes

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