Malicious PDF — malware analysis report

Static analysis result for SHA-256 be9f798e4f8b4583…

MALICIOUS

PDF

43.7 KB Created: 2020-08-10 07:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d3bae0032880c5bc684c1646d9c160d SHA-1: d2d617b2837ab8e689ce2284cccf9e3ed16cabbf SHA-256: be9f798e4f8b45839f5eba013ed10a4cdaeabbbfcb5700fee7d45cf7ae556bc7
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to domains associated with link farms and redirectors, including a critical finding for PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL identified is https://ttraff.cc/pify?keyword=algebra+quiz+grade+9+pdf, which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains references to the topic 'algebra quiz grade 9 pdf' and the malicious URL, suggesting a lure to trick users into clicking the 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=algebra+quiz+grade+9+pdf In PDF document text
    • http://ganijaxo.opeiu-local2.org/uploads/1/3/2/3/132303382/vaguzufodaje.pdfIn PDF document text
    • http://files.graevesautoandappliance.com/uploads/1/3/0/7/130739883/716f4b516d7.pdfIn PDF document text
    • http://files.bellevueeasthoops.com/uploads/1/3/2/7/132740270/5202166.pdfIn PDF document text
    • http://melinemi.conseilscolaire-schoolcouncil.org/uploads/1/3/1/0/131070450/gobazedevezula.pdfIn PDF document text
    • http://guxuvo.haexperts.com/uploads/1/3/1/4/131453060/1112744.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4521/5656/files/98864683460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/bowepatidevobemonijop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4090/6135/files/35984272000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3788/8410/files/types_of_problem_solving_in_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5345/6289/files/blackjack_strategy_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9102/5303/files/blueberry_hill_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4126/5566/files/xemogipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/sosub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8022/8759/files/linux_mint_viewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1703/6198/files/18890359492.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59C7 5076 bytes
SHA-256: 65d2ba070504f66db5f8489201de1e39669ab726d8e3faf1894e68aa8ca03fa5
font_01_sfnt_off00006b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0E 12876 bytes
SHA-256: aa74ad6f99684de31d7f2eec228c345734dba5e24d2a367543035dcee612dc4e
font_02_sfnt_off00009411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9411 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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