Malicious PDF — malware analysis report

Static analysis result for SHA-256 9150c3e2e513f98f…

MALICIOUS

PDF

43.0 KB Created: 2020-08-20 21:03:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0645d2a12f486756955c4eb28f0a491d SHA-1: 841245e08f73682c1c85788d8d65dd0f38eea1af SHA-256: 9150c3e2e513f98f4ef1271811b1913da09146138ffe730bde59b5d656c31265
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=cervical+spine+exercises+pdf', is designed to redirect users to malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify, likely for SEO manipulation to increase visibility. No scripts were extracted, but the primary malicious intent appears to be the redirection via the embedded link.

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.cc/pify?keyword=cervical+spine+exercises+pdf In PDF document text
    • http://files.spinnakerspiritualdirection.com/uploads/1/3/0/8/130874257/4727064.pdfIn PDF document text
    • http://files.klemenspulsers.com/uploads/1/3/1/3/131382470/7237376.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/1/0433/4796/8149/files/xipogipizog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/wevipepowurax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9498/1273/files/fisiopatologia_del_cancer_de_lengua.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/bombardier_dash_8_q400_flight_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/19984052184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/92955230504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1370/9730/files/jixajapapusomawisorapakav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5317/7237/files/pengertian_application_programming_interface.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/12377419514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9659/5861/files/python_interview_questions_and_answers_for_experienced_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/38544441538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/how_to_play_arpeggios_on_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1939/files/9723732738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1275/1523/files/doweb.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_off00006ba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA5 5180 bytes
SHA-256: 8edc629f6d0f1c86c87ee391dc50f837f939a44306bf04c78ae092640d1a8558
font_01_sfnt_off00007d51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D51 9804 bytes
SHA-256: 3b716c483fac80f16e358eaac6f3b81d2dece13f760e2b153622afffe9aef5a7

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