Malicious PDF — malware analysis report

Static analysis result for SHA-256 73eb6f666e844ce1…

MALICIOUS

PDF

49.4 KB Created: 2020-08-09 12:29:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b08c5a6efbc4e13794f8cc39951219e7 SHA-1: d46249e26dd47f3cf012591b7bc995e973404e9e SHA-256: 73eb6f666e844ce1868c1f305c81d6a7fc76932d73e9dc49955d13a7c8b538a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm. The primary redirector URL, https://ttraff.ru/pify?keyword=angles+in+parallel+lines+gcse+exam+questions+pdf, is flagged as malicious. This suggests the document's purpose is to redirect users to potentially harmful content under the guise of providing academic resources.

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=angles+in+parallel+lines+gcse+exam+questions+pdf In PDF document text
    • http://regeka.miramarbarra.co.za/uploads/1/3/1/1/131164250/sojesap.pdfIn PDF document text
    • http://files.key2evolve.com/uploads/1/3/0/8/130874318/zasabuxemer_xawapikiguromik_balasoge.pdfIn PDF document text
    • http://files.grassrootsarts.org/uploads/1/3/1/3/131380485/mapok.pdfIn PDF document text
    • http://files.herbyagnew.com/uploads/1/3/1/3/131380305/aad93126db9d351.pdfIn PDF document text
    • http://files.michellejnettles.com/uploads/1/3/0/8/130873826/781962.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/1/0435/1390/5311/files/mowuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/jopepowagedajamovokug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4926/3005/files/36431973764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/lekan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8050/6773/files/tidulakurobikedijof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0659/8040/files/srimad_bhagavatam_in_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/50046595334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3493/3398/files/vovojonarogaroxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6277/1358/files/solidworks_bicycle_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/12490692141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2522/6133/files/bofiminugegusizasoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/98323871988.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_off00007931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7931 5660 bytes
SHA-256: 798f672c047ac18b05661ea658700358266104aedac365099a4520f8e35316c5
font_01_sfnt_off00008c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C6A 13948 bytes
SHA-256: 927b02e44a57361e4e48e5b37adedabff2d972d820c912efd3d2825b52d2c07d

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