Malicious PDF — malware analysis report

Static analysis result for SHA-256 f59097d53196929e…

MALICIOUS

PDF

36.6 KB Created: 2020-08-25 05:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 010f3b525a70b9abc8c56b9c7a79eefb SHA-1: 7ea9dce630531ef685937465312a604589fb2682 SHA-256: f59097d53196929ec02f9780d8feb6b5af0608dbde88adaeb62892f2214c1b13
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document body, though partially corrupted, contains the same lure text and URLs found in the heuristics, indicating a deliberate attempt to drive traffic to these sites. The ML classifier also strongly indicated maliciousness.

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=breves+de+comptoir+pdf+gratuit In PDF document text
    • http://pezenoj.homespundelights.net/uploads/1/3/1/0/131070867/4306811.pdfIn PDF document text
    • http://rewune.helpfulmeditation.com/uploads/1/3/0/8/130814229/8145fde8b.pdfIn PDF document text
    • http://files.diedrabenoit.com/uploads/1/3/0/7/130739343/09e497e232d.pdfIn PDF document text
    • http://files.porterridgeband.org/uploads/1/3/1/4/131438667/7e456b0.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/1/0429/7054/6329/files/zamopiximebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5592/files/98626979613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3461/3659/files/diagonalization_of_symmetric_matrices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/pelafosemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/zovurujesolosekipot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4849/3205/files/jorobovezemaraje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9345/0913/files/tuviwufikinomereg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6059/files/oxford_english_for_cambridge_primary_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/declaration_of_assets_and_liabilities_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0841/7192/files/tesis_sobre_acoso_escolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6826/files/architects_scale_of_minimum_fees_rules_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9381/9541/files/16165731514.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

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49BF 5552 bytes
SHA-256: 9508df9d6ae4463c5b27ccc225aeb42cc5bff66d36dc4785ac83f0cf722073cf
font_01_sfnt_off00005c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C96 12996 bytes
SHA-256: 5a3309cfdca77e3dafc72b790bd2117b6e418c809e418bfa1cec9d983ee39fd7

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