Malicious PDF — malware analysis report

Static analysis result for SHA-256 8809c765ec375ea6…

MALICIOUS

PDF

50.9 KB Created: 2020-08-24 06:15:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3cef585b8806ff6990a486401627f79 SHA-1: ca94e22e46cf9cedcd9152e072c5fb0a810f20ee SHA-256: 8809c765ec375ea6ca8e212ed6ba84c4ef97f926fb95b83384adcc4cf6dbf772
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded links, many of which point to redirector infrastructure. The primary redirector URL, https://ttraff.ru/pify?keyword=game+billiard+online+android, is identified as malicious. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a link farm or phishing lure. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=game+billiard+online+android In PDF document text
    • http://files.broadcastcoffeeroasters.com/uploads/1/3/0/9/130969448/bubibize.pdfIn PDF document text
    • http://files.tlcvegan.com/uploads/1/3/0/7/130776486/7313623.pdfIn PDF document text
    • http://files.nalinikrishnankutty.com/uploads/1/3/0/8/130874128/mewajuluxojuvafox.pdfIn PDF document text
    • http://kudeziv.oewolfparents.com/uploads/1/3/0/7/130738720/4920a50f34c6.pdfIn PDF document text
    • http://vedesaxen.vinified.co.uk/uploads/1/3/2/7/132712615/d7ded195c47fb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/temperament_test_dog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/37245900390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6337/8081/files/old_bottle_identification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5545/files/rewedugozupokefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/xakuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/boolean_logic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/nojusujoraxojowip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/upsc_cds_ii_2018_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8120/1819/files/42950593180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2837/2886/files/rinakabud.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74FD 4964 bytes
SHA-256: 131598a9247125dcf8f31cecb300e66f9f10a515699de9f8d9da3f131da726e4
font_01_sfnt_off000085cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CD 10000 bytes
SHA-256: 5bc86e475519be2f7f9fd4acd969f6417c9fcb95fec506942fd5fdff2c916d0f
font_02_sfnt_off0000a841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA841 16468 bytes
SHA-256: cfcd05a0c4c29650fb289d3b9d3ed26e082e8f5a1b5b712b0509a6c70894056a

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