Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b257700e0cc0030…

MALICIOUS

PDF

129.8 KB Created: 2020-08-01 20:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b41bec6dee8da6389aeaafd45b8b2dcf SHA-1: 4a631f351e47a0c6dbe82ae884d7969616f62537 SHA-256: 7b257700e0cc0030d29169f0a3cebd42058643ca4c5b91bb0d0bca567b8efa5f
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that masquerades as a download button, aiming to trick users into clicking it. This link leads to a PDF file hosted on a Shopify domain, likely as part of a phishing or scam campaign. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-related link farm heuristics further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=kasap+electronic+materials+and+devices+pdf In PDF document text
    • http://files.contemplarichristi.com/uploads/1/3/1/4/131436980/wigoxemo_mevanulare_dolimolevafiru_butixebogagiset.pdfIn PDF document text
    • http://files.stretchedmama.com/uploads/1/3/0/8/130874612/sebon.pdfIn PDF document text
    • http://files.rainbowswithinreach.com/uploads/1/3/1/4/131408353/buxunenebabogaledaga.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/1/0438/4758/1856/files/petarerasenofatizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9344/9122/files/tusawovabagas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7229/8913/files/28371470964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0629/4176/files/27594939864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/bulivevagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8402/files/fitgirlsguide_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2311/3119/files/shounen_onmyouji_episode_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2255/7095/files/jujamanapilix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5446/4165/files/gesonepawixexisedux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3800/6686/files/51293923351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8028/6372/files/bajabababi.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 3

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_off0001b66c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B66C 5332 bytes
SHA-256: 1f323a63468415224c93a1bab0c73053d796b0f054c18fa608c1485d79fc1a8d
font_01_sfnt_off0001c882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C882 15884 bytes
SHA-256: 192aa3c3a4dcd4d57aa0833a0ec6b0ed5c69571cfc13a5e644d87de7f8ed7610

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