Malicious PDF — malware analysis report

Static analysis result for SHA-256 97732cb00613527d…

MALICIOUS

PDF

53.6 KB Created: 2020-08-09 11:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8abd2dbe6772d2d3c7de9ef7f0961520 SHA-1: ed332030e61c7c4b1244243efbeef6830aa0025a SHA-256: 97732cb00613527d6ce85b964c6356d05e027dcc9f13ef7bf2827dc32c8f9839
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=lautr%25C3%25A9amont+gaston+bachelard+pdf'. Another critical heuristic indicates a PDF link farm, suggesting the document is used to distribute traffic to various external resources. The presence of numerous shopify.com links, some confirmed benign and others unknown, alongside other suspicious domains, reinforces the link farm behavior. The document body is heavily obfuscated and contains the primary malicious URL, indicating its purpose is to redirect users to potentially 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.com/pify?keyword=lautr%25C3%25A9amont+gaston+bachelard+pdf In PDF document text
    • http://files.mrsleonard2ndgrade.com/uploads/1/3/1/1/131163872/20d8e8003b.pdfIn PDF document text
    • http://files.bethelhouseinc.org/uploads/1/3/2/7/132712080/teputom.pdfIn PDF document text
    • http://nelupaked.askweklar.net/uploads/1/3/1/3/131380213/93603.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/1/0431/4379/0760/files/noun_clauses_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/bilojeserarupaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7992/files/catia_training_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9175/3115/files/nutrition_ethiopia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0622/9654/files/98434466691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/ronarokur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2806/5949/files/quantum_explanation_of_photoelectric_effect.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/bikaxuzijomezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5194/0000/files/1137242436.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00009cbe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9CBE 24576 bytes
SHA-256: b41422542352ebe7fd922a06c10f12881c807e138571c046408f52bedb6c1218
font_00_sfnt_off00006273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6273 5792 bytes
SHA-256: 5ef53717d6828693ad8e653245bd2b9054583e406aa8778d014b42884c13253a
font_01_sfnt_off000075c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C1 12196 bytes
SHA-256: 1ae22b1d68b14b7bc1ca513e026c3c7a2e12ac3ba078c49a7221c71a80e2cf8e