Malicious PDF — malware analysis report

Static analysis result for SHA-256 1572b322f94104ba…

MALICIOUS

PDF

47.9 KB Created: 2020-08-05 06:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3dd5ca6ea70a1ee35359575ba129bd91 SHA-1: 707232bd7b7484297f8bdcf702fadb7a689402ff SHA-256: 1572b322f94104bac3b3aada7600680c5fab573195396427d10090f1f523d193
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service, which is indicative of a phishing or scam attempt. The primary redirector URL, 'https://ttraff.com/pify?keyword=treatment+of+arrhythmias+pdf', suggests a lure related to medical information. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded links to potentially malicious infrastructure supports this assessment.

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=treatment+of+arrhythmias+pdf In PDF document text
    • http://files.buffyisdog.blog/uploads/1/3/1/4/131410545/3298827.pdfIn PDF document text
    • http://files.redwordediting.com/uploads/1/3/0/9/130969761/e79f3e1352b9.pdfIn PDF document text
    • http://files.ronrash.com/uploads/1/3/1/6/131637362/zupumibakoxes.pdfIn PDF document text
    • http://files.singsingprisonmuseum.org/uploads/1/3/2/7/132740337/01c41faef8ce.pdfIn PDF document text
    • http://files.wellsburgchamber.com/uploads/1/3/0/9/130969428/sanor_majafiwe.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/1/0431/3966/1981/files/93264238824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2089/files/how_to_view_source_code_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4715/7911/files/nevevipid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/zalipigijegejadijafeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1710/7616/files/50360458203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/vanapidali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/netikesakafinorejejefoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7091/4717/files/sinezisevagetigajifuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/digise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5372/7394/files/votajevonatatif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/92686376234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/50777787178.pdfIn PDF document text
    • https://medlineplus.gov/arrhythmia.htmlIn 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_off00007ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA0 5300 bytes
SHA-256: e9c58fcfa6e7cfb9275e0e4b8ccc3f86f4dda7b78b0ca98be904fa0bc4e88bd6
font_01_sfnt_off00009087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9087 10076 bytes
SHA-256: f9a32744966119215bf1fe71eba7116446c97ca2e4d1056c342be1518d4b5fb0

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