Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd382471ec5a9176…

MALICIOUS

PDF

39.4 KB Created: 2020-08-20 12:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9438fef6d53f64836d0388d5f8be6f6a SHA-1: a6bc1b8861d761488a9faf53df17b740a4471d37 SHA-256: cd382471ec5a9176fd30f4e3e543b2edc5bd002d4c4633c3816777f483fa5818
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic, suggesting a lure to a malicious site. The presence of a large number of external PDF links also indicates a link farm or SEO poisoning 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=baazigar+odia+film+song In PDF document text
    • http://zesofage.cutekitties4u.com/uploads/1/3/1/3/131381675/bagura_larumaje_rodulufumox_zawotipadur.pdfIn PDF document text
    • http://files.aineedwardsconsultancy.com/uploads/1/3/0/8/130874582/jigadebib_luxijo.pdfIn PDF document text
    • http://sojemevek.saritaredalia.com/uploads/1/3/1/0/131070719/xegagevarireto-sejurar-ladoji-xonito.pdfIn PDF document text
    • http://tenite.tlawsonlab.co.uk/uploads/1/3/2/6/132695569/pobopete_nutuwitomes_sadazuwonepig.pdfIn PDF document text
    • http://files.newenglandanxiety.com/uploads/1/3/0/8/130874598/wazetazodas.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/1/0437/3767/7985/files/drayton_digistat_3rf_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4708/3429/files/21735462039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/78072636592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zitadeduwifugegumav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/kerozasegepepulak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9029/files/barriers_to_communication_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/ralimewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5584/0422/files/mitulumakujedox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/modifotebilipetafokonomux.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000526b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x526B 5324 bytes
SHA-256: 7ceb0f341f21253169031c98424ccaf6a7d8f4ebd2d7e4655b43a6491810fe0e
font_01_sfnt_off00006476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6476 14100 bytes
SHA-256: 377d858a799ab1f34d90bd6b1b86e09bb7b2b2b2f823960dec9aad0b63ad5f18

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