Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab8c5ea6390ef329…

MALICIOUS

PDF

44.2 KB Created: 2020-08-17 17:21:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 102d023bbcb14176a641ef0eb79aadaa SHA-1: 5858081fdfcd023f26966b5d873c267cab968745 SHA-256: ab8c5ea6390ef329fc26b712f05b8cf64540e53edb09f04eec2d86e9a27335af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a deceptive title 'Bettors guide week 9' and embeds a large number of external links. One of these links, 'https://ttraff.com/pify?keyword=bettors+guide+week+9', is identified as a known malicious redirector. The presence of numerous links, many pointing to Shopify domains hosting PDFs, suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious redirection attempt.

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=bettors+guide+week+9 In PDF document text
    • http://files.wlschaska.org/uploads/1/3/2/6/132681304/donusavunufaze_ginipus.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/1/0427/6482/8838/files/1657552650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9445/0082/files/complete_guitar_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5384/1560/files/unique_rpg_classes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/60911909663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/jijodivanupezexalebusegap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5221/9030/files/oxigenoterapia_resumen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2866/5752/files/piano_music_books_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/weber_spirit_e210_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/dagupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8669/0969/files/morirago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2535/0301/files/15352192935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5907/5477/files/comparative_and_superlatives_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1023/6314/files/25955458272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/wawamamufufotijufekegipe.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 2

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_off000070ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BA 5112 bytes
SHA-256: 75e9cfe19b45e1f4f267c823afbd45c32670b0d56764f189ba9631f090bd38d6
font_01_sfnt_off00008247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8247 9936 bytes
SHA-256: 05adaefc656df15a1c79150666d20146e3b3eae1bbffb934ac7249f0f2e2f634

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