Malicious PDF — malware analysis report

Static analysis result for SHA-256 09f6c4194e94ff5d…

MALICIOUS

PDF

60.8 KB Created: 2020-09-12 00:45:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bc7cd6e72579c1a8602502572e39193 SHA-1: 0325a68747b7da6a2469a5dd30c164bb398ff144 SHA-256: 09f6c4194e94ff5d13ee2a675c262bbb620aab449cd648ad84617bee20f40d6a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which lead to redirector infrastructure designed to obscure the final malicious destination. The document body and embedded links suggest a phishing or scam attempt, using a lure related to "boater exam answers key". The ML classifier strongly indicated maliciousness, and the presence of redirector links points to a malicious intent to lead the user 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.me/wix?keyword=boater+exam+answers+key+texas In PDF document text
    • http://files.chunkybrother.com/uploads/1/3/1/8/131856277/7bed84d.pdfIn PDF document text
    • http://nanura.olympicclassictbirds.com/uploads/1/3/0/8/130874493/tobutiso.pdfIn PDF document text
    • http://pedozoxa.crewsheatingandcooling.com/uploads/1/3/0/8/130814328/4627694.pdfIn PDF document text
    • http://baduvov.jacquelinecutler.com/uploads/1/3/0/8/130814229/76e426f43da.pdfIn PDF document text
    • http://files.ablessingboutique.org/uploads/1/3/0/8/130813616/8379538.pdfIn PDF document text
    • http://redom.ipksportsbetting.com/uploads/1/3/1/8/131857252/xulubafude_fowiwu_sowelorujigeb_kamagigo.pdfIn PDF document text
    • http://files.cfletcherphotography.com/uploads/1/3/2/6/132680874/271b7.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/1/0433/5858/4986/files/namakam_chamakam_in_kannada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/14199226228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6179/5230/files/archidoxes_of_magic_paracelsus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1271/files/disolenowilile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/screen_capture_on_samsung_android_phone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7732/9056/files/html_form_multipart_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/piscicultura_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5008/2202/files/73239193942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6638/2749/files/poborezolenetun.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 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_off0000a8a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8A3 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off0000b29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB29E 5176 bytes
SHA-256: 2c567bb5ddeba3298b4eb3fa8c3dc9017a66da51b1325cf9d144cade0b120def
font_02_sfnt_off0000c43e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC43E 9868 bytes
SHA-256: 9fa91937810b9db89e0a4425ca3e2620ab0f48b3f9fcda596076b067cb5e947a

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