Malicious PDF — malware analysis report

Static analysis result for SHA-256 215ad7e76ade66f8…

MALICIOUS

PDF

47.6 KB Created: 2020-08-02 22:55:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4fa86af5f9af7e3e8c062826330d479 SHA-1: be7b63a7ad4c04c2aab671596635ad7da7b081ee SHA-256: 215ad7e76ade66f8ae558203249abab1bf7706ea0afa17119da031803a1f8d01
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious due to a link farm and a redirector pointing to a suspicious URL. The ML classifier also strongly indicated maliciousness. The embedded URL in the document body, 'https://ttraff.ru/pify?keyword=tsr+advanced+dungeons+dragons+monster+manual+pdf', is a key indicator of this malicious redirection attempt. The presence of a link farm suggests an attempt to manipulate search engine results or distribute multiple malicious links.

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=tsr+advanced+dungeons+dragons+monster+manual+pdf In PDF document text
    • http://files.sew-at-home.co.uk/uploads/1/3/1/0/131070230/6c6f496914450f5.pdfIn PDF document text
    • http://files.cabincreekfarmstudio.com/uploads/1/3/1/3/131379939/vetiludasokozana.pdfIn PDF document text
    • http://files.cavalierkingcharlesspanieldogs.com/uploads/1/3/1/4/131412603/90400.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/1/0427/5827/5238/files/masujegumazijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5694/files/38760282570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2849/6036/files/fagawagivoxejudusulun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7498/files/dulojaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9605/3662/files/74918999586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0180/7007/files/21991798975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/35998048182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/65402923426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2549/0332/files/50828748782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5212/1762/files/what_does_the_mending_enchantment_do.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2883/9586/files/wasteland_survival_guide_fallout_3.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 5

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_off00007b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B83 5484 bytes
SHA-256: 5fe86e152cabb7db3be1228d8da10483aae47bb384302b0a7c0ab835e2a5b746
font_01_sfnt_off00008e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E25 10184 bytes
SHA-256: e06165fc67aa666bf693cfda8b9652ca3c9be9f9155e824b4cf38cb168165cc0

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