Malicious PDF — malware analysis report

Static analysis result for SHA-256 689802692a8390ef…

MALICIOUS

PDF

41.8 KB Created: 2020-08-12 17:45:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b21ea595b0bbaafe9dc17d1de0be9136 SHA-1: 39a88d73b9ec589e29dd1375b8d72654ca706471 SHA-256: 689802692a8390eff2b94985b3df69aa0efd4f6b0126e81cbe93dd3d5ec08031
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 and heuristics indicate a "free download" lure, likely a phishing attempt to direct users to malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interaction for malicious redirection.

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=pretest+biochemistry+4th+edition+pdf In PDF document text
    • http://files.gbcoa.ca/uploads/1/3/1/3/131381363/kipowes.pdfIn PDF document text
    • http://files.florencetrackclub.com/uploads/1/3/1/4/131407178/tovoj.pdfIn PDF document text
    • http://files.lechicacademy.com/uploads/1/3/2/6/132681863/be07ad994752ee.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/1/0434/7386/2808/files/immunization_chart_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/82063823108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3659/7654/files/78212140948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/mezuzunesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3718/6458/files/beginner_s_guide_to_sculpting_characters_in_clay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4410/0506/files/36959798900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/calendario_lunar_octubre_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8644/4699/files/7980358108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bibekejufalakudogaloseja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5006/6339/files/beginner_s_guide_to_weightlifting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/seresope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1808/3742/files/zuxitetup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/biography_of_abraham_lincoln_in_short.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 4

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_off00006663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6663 5484 bytes
SHA-256: 354aa35e9161f2a75e4c692a2e9c6e498e7aea1a7708cec08c422ca7d26d803d
font_01_sfnt_off000078e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E9 9812 bytes
SHA-256: 9159ea3fe6c87b299cafd2e67da6a8fa49bed82f9a84bad22be36fb9c347fe13

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