Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e20aa5d15dbae5f…

MALICIOUS

PDF

46.8 KB Created: 2020-08-05 22:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82a9a4504c3c8da554a23b56a3eb07ef SHA-1: 88b0569f3601bac5c3fb21e2b3763184f20143b0 SHA-256: 1e20aa5d15dbae5f79bb42fbcce1873b8ed8c0d64103a0e7192cd9c198d56332
194 Risk Score

Malware Insights

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

The PDF contains a lure document with embedded links. One critical heuristic indicates the PDF links to a known malicious redirector, specifically 'https://ttraff.com/pify?keyword=basic+c+programs+list+pdf'. Another heuristic identifies a link farm pointing to multiple PDFs hosted on Shopify, suggesting an attempt to manipulate search engine results for malicious redirection. No scripts were extracted from this sample.

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=basic+c+programs+list+pdf In PDF document text
    • http://files.cveducators.org/uploads/1/3/2/6/132681969/xuzel-kixijukusa-zudevod.pdfIn PDF document text
    • http://files.coastaldryhome.com/uploads/1/3/0/7/130739379/sevaviwigige_sodedoti_demofezij_kewigotanax.pdfIn PDF document text
    • http://files.socommunitygarden.org/uploads/1/3/1/4/131437246/6912292.pdfIn PDF document text
    • http://files.lewisandclarkriverboat.org/uploads/1/3/1/3/131380213/d5527b8.pdfIn PDF document text
    • http://files.nataliemastick.com/uploads/1/3/0/7/130775400/7795346.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/1/0432/1335/7211/files/joxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9105/8078/files/87767460829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0011/7928/files/penikapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/33185688760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3822/0181/files/babysitting_cream_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/intermediate_algebra_bittinger_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4311/0555/files/17211699092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/41144403848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/61905027080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/70866606495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/71083341768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1668/2663/files/87156327691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90554838216.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 8

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_off000076ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CA 5524 bytes
SHA-256: e980ff24ae21ed858efd70d4099e438cefd4b7c0dbe7ff58f891f5e90b91700e
font_01_sfnt_off0000897d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x897D 11204 bytes
SHA-256: b1dd86d41b52163e2c869c25e6bf1fd3af2af2420fe5dec3f5f37ede963da586

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