Malicious PDF — malware analysis report

Static analysis result for SHA-256 608495a8672a8bad…

MALICIOUS

PDF

46.7 KB Created: 2020-08-10 23:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2da261516df3b142b24d60374d2c6493 SHA-1: 2a003d3198dd4af14185c9bf937a015f523d3030 SHA-256: 608495a8672a8bad4e3af69c81a56f760d410e3495e5720782923c9bc0423a6e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, specifically for containing links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that appear to be part of an SEO link farm designed to lure users with seemingly legitimate document titles. The primary malicious URL identified is https://ttraff.cc/pify?keyword=oxford+school+dictionary+and+thesaurus+pdf, which likely leads to a phishing or malware distribution site.

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.cc/pify?keyword=oxford+school+dictionary+and+thesaurus+pdf In PDF document text
    • http://files.retroproskc.com/uploads/1/3/0/8/130814078/kelaremibazu.pdfIn PDF document text
    • http://getom.my-music-education.com/uploads/1/3/1/0/131070161/jusunuxogego.pdfIn PDF document text
    • http://files.sophiascheffel.com/uploads/1/3/0/7/130775261/4953860.pdfIn PDF document text
    • http://files.mystiquedogkennels.com/uploads/1/3/1/1/131164052/ac4d49.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/kewimolide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/43778469717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7444/4694/files/canterbury_tales_short_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2988/7136/files/esp32_web_server_with_arduino_ide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4283/1522/files/mirete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/85414560273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9105/0137/files/44423914348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2274/3712/files/pi_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6576/8096/files/napezupadibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5911/files/37685872919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3459/9843/files/logback_xml_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6980/0597/files/38011693369.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 1

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_off00006967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6967 5324 bytes
SHA-256: b59d974dc818e141bcf2f2950d72d89714e45e7f5be78ab26a0406a3d8f542d5
font_01_sfnt_off00007b7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7E 10448 bytes
SHA-256: 05b5b3c3b3f8666f702e7e856f72ad76a465efa7c6b8e143eed8a28e9a20db3c
font_02_sfnt_off00009f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F38 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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