Malicious PDF — malware analysis report

Static analysis result for SHA-256 f63b334984f58ef7…

MALICIOUS

PDF

46.8 KB Created: 2020-08-10 19:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 956daf3ea20dd52e91b44a699d48800d SHA-1: 6ab82550c319834ddd74d2a5443b0417b0a2342e SHA-256: f63b334984f58ef757203032350c53692b3c4b90b7f5df801b4253633d3fcbf0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link that redirects to a malicious URL, disguised as a Nokia business strategy case study. This is further supported by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics, indicating a phishing or social engineering attempt to lure the user to a malicious site. The document body contains the same lure text and the malicious URL.

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=nokia+business+strategy+case+study+filetype+pdf In PDF document text
    • http://files.ccydnehobbies.com/uploads/1/3/1/4/131437532/6310462.pdfIn PDF document text
    • http://files.effectivepracticeeducation.com/uploads/1/3/1/1/131164398/romikiz.pdfIn PDF document text
    • http://files.eklavyadun.org/uploads/1/3/1/3/131398117/3520499.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/1/0432/2784/0669/files/sufafujadotufut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0352/5790/files/75303229386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/vovumarigabisevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/ielts_speaking_cue_card_topics_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9822/5320/files/wiwev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4157/0466/files/44447419249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6539/3831/files/81027158984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46552055365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6032/9637/files/gapomugimep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/9711404413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/nipineraxitelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9402/1030/files/cytosol_definition.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_off000077a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A5 5600 bytes
SHA-256: ea6eca156b89d080c4f2a6e61ce0e357011f3124143ef3c34266f508bf8bb348
font_01_sfnt_off00008acb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ACB 10372 bytes
SHA-256: e9e58424961881a0ef266c1ed76c44215a1953eb62749c15dd9e2a214abbdb49

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