Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cbf30c0a514d6a1…

MALICIOUS

PDF

50.4 KB Created: 2020-08-18 18:09:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d853f0da98683ec77f7301762697858 SHA-1: 7cc86d04a3c96c58761cc612acf06aa17af51d8d SHA-256: 9cbf30c0a514d6a1c89589ebd6c9eb1816ae1059d08dd96514db2c23ef580a20
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body text, though partially corrupted, includes keywords related to a popular movie and the redirector URL, suggesting a lure to disguise malicious activity. The ML classifier strongly supports the malicious verdict.

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=bahubali+1+tamil+video+movie In PDF document text
    • http://files.wirralepcs.com/uploads/1/3/1/4/131483281/dunewobemozuwuw-giduk.pdfIn PDF document text
    • http://nadilo.getorganizedbydeb.com/uploads/1/3/0/7/130776661/wizolukese_fizaxorulezagav.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/1/0433/9499/0231/files/viliporixuwite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0215/0557/files/oxford_bookworms_stage_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/12026633746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55166802931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1278/files/fikozereta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4718/2759/files/lukinedejumupabelatevuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/89419175201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9862/7495/files/sociology_textbook_mcgraw_hill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9195/1769/files/26253427811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/86046775374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/pdf_to_word_converter_online_free_without_email_id.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00007272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7272 5092 bytes
SHA-256: d4bce34dd5adc5700fd4a12f0fb51fbdf76395c10a3d4a65d48a8bf515fa6ade
font_01_sfnt_off000083ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83AB 10320 bytes
SHA-256: 176f858a0ed73a2125a5c27a9d41ccc3a2788819ab1706fb4d44976fc8d00369
font_02_sfnt_off0000a6cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6CF 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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