Malicious PDF — malware analysis report

Static analysis result for SHA-256 685f0a21c08a0015…

MALICIOUS

PDF

41.3 KB Created: 2020-08-19 01:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b46adee34190ae77bd93924a0d72f6c6 SHA-1: 0eeb9c27c43712237e13ce93ab3b25c36225e6d0 SHA-256: 685f0a21c08a0015431b730b74bbe6e95958d96272b0d7128b01e067d9009b9c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=netflix+app+android+freezes'. This redirector is likely used to funnel victims to phishing pages or download further malware. The document body and heuristics indicate a lure related to a 'Netflix app android freezes' issue, suggesting a phishing or scam attempt.

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=netflix+app+android+freezes In PDF document text
    • http://files.prayercloset.us/uploads/1/3/0/8/130873983/vatumegig_rinitamaforijo_tunowabopiz_gegewudanodoz.pdfIn PDF document text
    • http://files.idahobluegrassassociation.org/uploads/1/3/0/8/130874050/8422788.pdfIn PDF document text
    • http://popim.aleksandarmatovski.com/uploads/1/3/1/0/131070447/pugifejuvatuwex.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/1/0429/7215/1959/files/gukagidefigoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2529/3724/files/adobe_reader_for_windows_10_64.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/23271273484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4995/7029/files/44238867033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3313/3209/files/67202990183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2001/6021/files/17973914162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/free_3rd_grade_multiplication_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3686/0839/files/wysiwyg_web_builder_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/35487524924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1106/7291/files/hdfc_mutual_fund_common_transaction_form.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 5

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_off0000574a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x574A 4908 bytes
SHA-256: 4c4e8e6dafd464882e9062a62c3cc6e526bd8348143fa3e562a59468e21f2685
font_01_sfnt_off0000680c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x680C 9980 bytes
SHA-256: 0e7cda285a025ea175c37f9966ac46f439406a3a968a29cca76f029d935219b5
font_02_sfnt_off00008a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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