Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f7dfeaf7949e1f…

MALICIOUS

PDF

47.1 KB Created: 2020-08-10 03:07:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 481c99099935bcc4a47d00a861c3c423 SHA-1: e69f1f9fe272c2c5450abbefaac6b3019836ae01 SHA-256: 02f7dfeaf7949e1f862c9ffd2b2d7379782c9a63f3cf4da5967fb36ce9cabe2d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to trick users into downloading malicious files or visiting compromised sites.

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=articles+in+english+grammar+with+examples+pdf In PDF document text
    • http://vasanoz.northdevonbiosphere.org.uk/uploads/1/3/0/7/130776485/nasezejegi.pdfIn PDF document text
    • http://files.ps173q.com/uploads/1/3/0/7/130739093/tasinebav.pdfIn PDF document text
    • http://files.softwashing.com/uploads/1/3/0/8/130874524/pisomova-dureju-wujilavugiro-mawujixavu.pdfIn PDF document text
    • http://files.nwaaaufootball.com/uploads/1/3/1/3/131383456/86b9987.pdfIn PDF document text
    • http://files.unad.agency/uploads/1/3/1/8/131871424/1475447.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/1/0436/2010/6404/files/wezava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/schindler_list_violin_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/desperate_housewives_pilot_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/furupokexopaxabisovijuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/66366523447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7956/5465/files/m1pr_form_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/anemia_por_deficiencia_de_vitamina_b12_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/monitronics_alarm_service.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0639/3496/files/kidinixagisulilaxatitaxij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/2998/files/54957278580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5144/9496/files/18319199972.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C10 5396 bytes
SHA-256: 4bb5fadead4407e78801f1ff08d2efafcbb48e6eece00631608524574cb16964
font_01_sfnt_off00007e46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E46 10280 bytes
SHA-256: f41f3b9c40a7a760ab9f4d539dae3321db581e03dde406a36cd82eeb80d9186c
font_02_sfnt_off0000a140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA140 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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