Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a73e7ce018622c3…

MALICIOUS

PDF

202.7 KB Created: 2020-08-14 05:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fe5e0a65894429295a5edbc623c0412 SHA-1: bb14a155ad5d31c3e0c3878e1a3938e1a1199cd1 SHA-256: 0a73e7ce018622c3e766e4a2824d2fbd403e3961931fec36815ee81586fba860
134 Risk Score

Malware Insights

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

The PDF contains a link that is identified as a malicious redirector, specifically designed to lure users with a game-related title. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to disguise the true destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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=pokemon+ranger+shadows+of+almia+browser+guide In PDF document text
    • http://files.makariosinternational.org/uploads/1/3/1/3/131381722/7722048.pdfIn PDF document text
    • http://vaseb.affordablestoragebrownfield.com/uploads/1/3/1/8/131857152/bares.pdfIn PDF document text
    • http://files.beachcleaner.com/uploads/1/3/0/9/130968985/japame.pdfIn PDF document text
    • http://files.commsurf.com/uploads/1/3/1/4/131407802/7eae3619ab333.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/1/0431/0306/0128/files/biochemical_test_for_identification_of_pseudomonas_aeruginosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/18975767660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/dojav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3938/9856/files/diccionario_de_medicamentos_y_para_que_sirven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0736/files/fasewuzatifujeximakeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/advanced_excel_formulas_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/vunikatewujojaloxupes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3809/files/role_of_actinomycetes_in_soil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6379/5094/files/zowiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/zifinevovatusufuvetas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/2007_chevy_malibu_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/duwubutud.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 2

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_off0002e516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E516 5620 bytes
SHA-256: 78bb829012e7c57e8abea5b1b9f291a009a3cce7b53231866e3fc0652e0f314d
font_01_sfnt_off0002f810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F810 10724 bytes
SHA-256: d0f833270e8d2d79ee185f8326f98b74c86113a2b31f67443b5ab5205d5fb48d

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