Malicious PDF — malware analysis report

Static analysis result for SHA-256 02af67c2ed29cb09…

MALICIOUS

PDF

54.1 KB Created: 2020-08-15 06:50:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7620de6005ecf537c236f869d8588de SHA-1: 8346a4f8cf6f8127dd712ccea8780754e91a5b80 SHA-256: 02af67c2ed29cb09009d4b96e52ededbaf44f1f2c6664189d1b8e21cc5734ff6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector infrastructure. The primary link identified, 'https://ttraff.cc/pify?keyword=non+verbal+reasoning+analogy+pdf', is flagged as malicious and likely serves as a lure for phishing or malware distribution. The document body itself is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, indicating a programmatic approach to creating the link farm.

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=non+verbal+reasoning+analogy+pdf In PDF document text
    • http://files.conklinstudiopottery.com/uploads/1/3/0/7/130776602/9e45c877b0641.pdfIn PDF document text
    • http://fefovebo.msqg.org/uploads/1/3/1/4/131438641/nexuz_nokidep_xopavaj_xiwizamu.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/1/0432/1103/0683/files/sofevekipuxoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/76150416654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3732/2390/files/wakivebewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5754/4342/files/livasesereseli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9221/3911/files/raxosukimemozun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3100/2269/files/barron_s_sat_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexigubozorabavajodumixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/career_paths_medical_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/foxixupofofudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5388/3293/files/95079136644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/jixeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0028/0734/files/beroweb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/60369045039.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

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_off000078ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CE 5480 bytes
SHA-256: e7944d6a64af5bcd794737bd480f5be8e32ab92baa156ae22ec1ac64df0de8a7
font_01_sfnt_off00008b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B83 13276 bytes
SHA-256: a00953ad6829e1ac36333267e8042df4d545bd50285543c5e0ee35811431bd57
font_02_sfnt_off0000b66d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB66D 16112 bytes
SHA-256: c46167c1537ace1c34328017dc45fc1565d7348f0e5575c4b229e9a9e973acaf

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