Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1abe189f825917f…

MALICIOUS

PDF

53.9 KB Created: 2020-08-04 22:19:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1c7dc70b25b1d26851703323e498382 SHA-1: 6b57fd9ded30c1362dbfa5d4ccc63cdf0c133865 SHA-256: c1abe189f825917fddb41ec99ba3823873c83815732a1910f2ef8c9d2b853888
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 domains commonly used for SEO link farms and redirectors. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=methods+for+solving+systems+of+nonlinear+equations+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure users to external, potentially malicious, content.

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.com/pify?keyword=methods+for+solving+systems+of+nonlinear+equations+pdf In PDF document text
    • http://files.sagaladen.com/uploads/1/3/2/6/132681783/kezepimasuvevuvof.pdfIn PDF document text
    • http://files.pemachenacu.com/uploads/1/3/1/8/131858287/fememizukuse_poxutotogo_rizukidilemor.pdfIn PDF document text
    • http://files.transformyourdogllc.com/uploads/1/3/2/6/132695200/1625b16c3b9e.pdfIn PDF document text
    • http://files.aviatorsbeach.com/uploads/1/3/1/3/131380042/jopowemipobanet-gezeku-xijejisulerez-riwomapufewuda.pdfIn PDF document text
    • http://files.getjohnsoninsurance.com/uploads/1/3/1/4/131438459/5dad5b5c.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/1/0431/5830/6965/files/mimajogaxenopotodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9760/2713/files/jutivokizexuzetasilixozan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/44338804791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/zidomunulijozamiruxonis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5771/6117/files/2604622053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6741/5457/files/volokipawodamosumotefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/81750016880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/betux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/pebixarebuzelixupezujexon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5625/0525/files/gre_verbal_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/pifobapokobudapena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/xifofavoxa.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 7

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_off000086b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B6 5748 bytes
SHA-256: 8a0d3438cba9461235acc51d18e14cbfd7ea1be42f3ca873e8891c7c5c16d1fb
font_01_sfnt_off00009a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A2A 15532 bytes
SHA-256: d1b8757dc01a3eccd6ca2c5b03c3b6659a3b3944d800fd397bdd846aa1c2706d

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