Malicious PDF — malware analysis report

Static analysis result for SHA-256 038dea3464c12a27…

MALICIOUS

PDF

43.3 KB Created: 2020-08-07 23:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7aa23a6c30f3ffa9512dbe643cc01ea2 SHA-1: d1daea0a4331342bcfff26dcb1a4ead4795e991c SHA-256: 038dea3464c12a273fd1450ff51365c03168adbcbaa202d84eb02f5104801e62
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious infrastructure, specifically designed to host a link farm of other PDFs. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a physics workbook, which is then redirected through a malicious service. This suggests a phishing or scam attempt to distribute further malicious 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=cambridge+igcse+physics+workbook+third+edition+pdf In PDF document text
    • http://files.mortonbaptistchurch.com/uploads/1/3/1/8/131871568/1040026.pdfIn PDF document text
    • http://files.justicefarms.com/uploads/1/3/1/4/131437225/fbfb02ea27.pdfIn PDF document text
    • http://files.patrickracingbillet.com/uploads/1/3/1/4/131413678/2694597.pdfIn PDF document text
    • http://files.raharmonyasianmedicine.com/uploads/1/3/2/6/132696112/ebf417.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/1/0436/2282/6142/files/31683159769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1509/3920/files/lodakeletunifidofidupifap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/zagonofulipeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3395/0358/files/wipumuzazavuwaxuxubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3459/1907/files/gepatagamebujubaveba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/14849645836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6124/0220/files/65241361081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/ruwakeroleniwemuguxese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7238/0310/files/rivepofelopadixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5201/4491/files/amber_run_i_found_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5108/8032/files/list_tables_postgres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/36481705239.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 7

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_off00006614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6614 5840 bytes
SHA-256: 7a97f63baf57d698605764b22e353be1de72455253977362c8e0d7b3366e3df9
font_01_sfnt_off000079de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79DE 10824 bytes
SHA-256: 4ebbccb199cfc85972ff9c177d9f9a5a95e3f31ffbb04f767b0dc1446188d72b

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