Malicious PDF — malware analysis report

Static analysis result for SHA-256 039baa07dd42f8ff…

MALICIOUS

PDF

50.3 KB Created: 2020-07-30 20:47:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71a1c92dc6c509ef599914eb361bb8bb SHA-1: 6007d2f1783531421d290099d7ef49e53bcfb09f SHA-256: 039baa07dd42f8ff06ed8f5d00778c8ead9a2b3c7333ae2576c04c55962b238a
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The primary redirector URL is `https://ttraff.ru/pify?keyword=understanding+pathophysiology+6th+edition+test+bank+pdf`, which is flagged as malicious. This indicates a phishing or scam attempt, likely using a lure related to the document's apparent subject matter (a test bank PDF). No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly suggest a phishing attack.

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.ru/pify?keyword=understanding+pathophysiology+6th+edition+test+bank+pdf In PDF document text
    • http://files.elizabethhrand.com/uploads/1/3/0/9/130969254/milelu_vogelubolup_nikudoderas_xelepipikagew.pdfIn PDF document text
    • http://files.sheltiesalberta.com/uploads/1/3/0/8/130874585/9574119.pdfIn PDF document text
    • http://files.patricedworkin.com/uploads/1/3/1/6/131637131/391527.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/1/0430/6108/4322/files/sawufetajos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/53569600934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8147/2929/files/71920936203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0435/files/zivafapixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4042/3592/files/setadijivirevabatowutuzid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/mapirokejevupeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/79570992132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/xokusuruworibedik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/2479507915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3477/9553/files/4758490605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/43367695413.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CA 5540 bytes
SHA-256: 8b8ec45332e434efdf192cc139b55c782c77977fd23d577be6270bcb509e8068
font_01_sfnt_off00009897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9897 10340 bytes
SHA-256: 1a523b5e69d9e51bd9abb13636c50f7e950992e1368c53131d0e8ffd1136c841

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