Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4ae4c798c934676…

MALICIOUS

PDF

37.8 KB Created: 2020-08-28 04:28:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf58e4bdd55b2c1a8c57afc068447789 SHA-1: 7fa9c59167a40b6ad931aa6eda886d5962f9f771 SHA-256: f4ae4c798c9346765a45c4288e55844a629fcf30e68397483d7118c572de87ec
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one pointing to a known malicious redirector at `https://ttraff.ru/pify?keyword=e%2525C4%25259Fitim+psikolojisi+kpss+%2525C3%2525A7%2525C4%2525B1km%2525C4%2525B1%2525C5%25259F+sorular`. The document body, though malformed, suggests a lure related to exam preparation, aligning with phishing tactics. The presence of a link farm and a malicious redirector indicates an attempt to lead users to harmful 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.ru/pify?keyword=e%2525C4%25259Fitim+psikolojisi+kpss+%2525C3%2525A7%2525C4%2525B1km%2525C4%2525B1%2525C5%25259F+sorular In PDF document text
    • http://files.colleenshaunawaters.com/uploads/1/3/1/1/131163684/eb9bd4b4.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/1/0433/3882/5887/files/46924558804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/cidco_lottery_2020_september_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1750/0834/files/mcps_school_calendar_2020_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/sofemesusakowabip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6587/5359/files/41103302027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8549/5453/files/waponuzete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/viwifufetewesutawagobef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/dorejarelipugagitonowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2705/4237/files/the_intentional_fallacy_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/liczba_mnoga_angielski_dla_dzieci.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/91150474459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/tunavawifalaxojifunudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/8190/9660/files/93547260439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/17581594562.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_off0000503f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x503F 5756 bytes
SHA-256: 74a168f93143fed5dcff79eaafb7afd47648b8af91a221e651f89a32a64e3c37
font_01_sfnt_off00006326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6326 11772 bytes
SHA-256: 54d4b9a5e50e0e6140054871925059da1e907d159f71b7e20821650ebc6743e0

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