Malicious PDF — malware analysis report

Static analysis result for SHA-256 36daaebc1d10acfe…

MALICIOUS

PDF

37.0 KB Created: 2020-08-18 17:32:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1176f7ef5f9908f43aca5999b994897 SHA-1: 32e46a449536ff26914d6014e69fbef148011d25 SHA-256: 36daaebc1d10acfe58322f4f94a7c5852cee04419fd2da600c87496089c2ebc9
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=lollygag+crossword+answer'. The document body also contains this URL and numerous other embedded URLs, many hosted on Shopify, suggesting a link farm or redirection strategy. The ML classifier strongly indicates maliciousness. The primary attack pattern involves luring the user to a malicious site via the embedded link.

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=lollygag+crossword+answer In PDF document text
    • http://mimagevil.colorfulkauai.com/uploads/1/3/0/7/130775929/kopunenus.pdfIn PDF document text
    • http://files.alteredpurposes.com/uploads/1/3/1/3/131383586/9678650.pdfIn PDF document text
    • http://wewavazi.meghannrader.com/uploads/1/3/1/4/131482975/747a0ebc9b.pdfIn PDF document text
    • http://files.clclockport.org/uploads/1/3/1/4/131453449/e2a922e2c9.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/1/0429/4737/9356/files/paxojipefado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/past_simple_vs_present_perfect_tense_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2149/files/bogumimovavozukizesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3096/8480/files/burumukejixexoraniti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/bibliografia_vancouver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7674/7413/files/gukovufonenon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7397/9043/files/22973362816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/fafikutetezolikopatav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9642/3080/files/how_to_delete_guide_lines_in_photoshop.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_off000052c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C5 5240 bytes
SHA-256: a145aa2ec6d99b0ce2e0f19c563ca4e813181ee2f422620fce8db8733df1c56d
font_01_sfnt_off000064bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BC 10272 bytes
SHA-256: b1a41bc96601211258a710e2e573b5260291ff94ee0e4591954a520423e2129b

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