Malicious PDF — malware analysis report

Static analysis result for SHA-256 7543a91e767aaea8…

MALICIOUS

PDF

43.3 KB Created: 2020-08-08 15:05:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25aad16190b79c8271cd966632e25ecb SHA-1: 132eae98632f2d11dda14f69dc65fc4117f51f83 SHA-256: 7543a91e767aaea863dfdb3e83de6ca684690c3ebba7ef748aa37446f3da3d0d
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on domains associated with SEO link farms and redirectors. The primary redirector URL, 'https://ttraff.com/pify?keyword=aubrey+marcus+book+pdf', is flagged as malicious. This indicates a phishing or scam attempt to redirect users to potentially harmful content under the guise of offering a free book. No scripts were extracted, but the structure and embedded links strongly suggest a malicious intent.

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=aubrey+marcus+book+pdf In PDF document text
    • http://wenone.freedomachine.com/uploads/1/3/1/3/131383444/b30929.pdfIn PDF document text
    • http://files.losacres.com/uploads/1/3/1/3/131380651/jigumig_rofovurubo_buferan_jajife.pdfIn PDF document text
    • http://files.thehillchristianfellowship.com/uploads/1/3/0/8/130814397/b21095.pdfIn PDF document text
    • http://files.shareinhisloveministries.com/uploads/1/3/1/0/131070317/tafuzemapar-jitid.pdfIn PDF document text
    • http://xewetil.craftedbyhand.shop/uploads/1/3/1/8/131856330/45fe368fc.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/1/0428/2961/1171/files/courser_bee_honey.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/larabobed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6774/files/baroque_architecture_sculpture_painting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/convert_de_a_word_online_gratis_y_rapido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3854/6840/files/31228895522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8076/files/school_safety_agent_exams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3817/files/14790269220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/pefudubaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/gisigeninebura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/sujomosugamorox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3695/9139/files/guzax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6133/6471/files/entrepreneurship_development_and_business_communication_agrimoon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4091/3046/files/13030587109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5495/4656/files/algorithms_and_data_structures_with_python.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 5564 bytes
SHA-256: 83e8b62f28ff1eb466c9e2dce9b0d9e5d35e9ec7ff22ace7f98299c1cba36f0a
font_01_sfnt_off00007e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5B 9896 bytes
SHA-256: de4f51a5944dc2ee24decfc099b98a89ff7e650e6c343512c5a8ece638ba829c