Malicious PDF — malware analysis report

Static analysis result for SHA-256 028187f5849c1288…

MALICIOUS

PDF

61.7 KB Created: 2020-08-03 15:19:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d0f8e567e22b0a439dde0ac89ff57cd SHA-1: 757413ec16b35d44c187424f06fa7155eda6f766 SHA-256: 028187f5849c12885a202bc4a43414b3f4b27140be8b3d6bacce1a45e029d744
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 (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=abstract+algebra+questions+and+solutions+pdf In PDF document text
    • http://files.illlaladesigns.com/uploads/1/3/1/4/131406412/tifozujugupomed.pdfIn PDF document text
    • http://xiwut.themerchantsofvenus.com/uploads/1/3/0/7/130776031/9641063.pdfIn PDF document text
    • http://files.gracekutztown.org/uploads/1/3/1/0/131070231/1422585.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/61007863665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0968/5157/files/11585025692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/vawadevodimetalez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1228/2789/files/levowowux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8049/8852/files/zafiwugamawijobot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5023/6054/files/79641019396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1395/6006/files/rugadoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/sasuzivoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93616534700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/86856651977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0831/7850/files/vidavexozasawolizakape.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9767 5576 bytes
SHA-256: 735e22c8b3dc7fd34f0d2cd2e6599b3bf44764839b71d8f5054dc0eb21816981
font_01_sfnt_off0000aa4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA4B 6620 bytes
SHA-256: 79c72fbd033974fd482492cf92f9c059c3d566d950d0586622dc60d581628590
font_02_sfnt_off0000bbd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBD8 14240 bytes
SHA-256: 18151ab0fa7c557fc29842d7d71c84a4d601198aa084c8b0be84cd61ada658e1

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