Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bdcd6e138995e30…

MALICIOUS

PDF

43.9 KB Created: 2020-08-25 02:29:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90f6ad8f1e62bfe1a066c459f795bfd2 SHA-1: 265db2f34ef978795f7ee58103ef0e95c1bb5551 SHA-256: 7bdcd6e138995e30ef0a66762ba202bb30545d49b8e38299e2cb9a422313b5df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm and a specific redirector URL, indicating an attempt to lead users to malicious content. The ML classifier strongly flagged this PDF as malicious. The presence of multiple Shopify links and a redirector suggests a phishing or content-luring scheme.

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.com/pify?keyword=sharepoint+hr+portal+templates In PDF document text
    • http://files.bwmusic.net/uploads/1/3/0/7/130775027/pejifi.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/1/0429/4151/3894/files/airline_safety_ratings_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9886/3771/files/charge_of_the_light_brigade_poem_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/keloid_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/5651/4460/files/malukibifovanuzarisigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/xopogido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/bodyweight_fitness_program.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/node_random_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/59880551436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9131/0232/files/teenage_christian_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8570/2054/files/15819638416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8567/6188/files/vertical_adjacent_complementary_supplementary_angles_worksheet.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_off00006667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6667 5160 bytes
SHA-256: 0d5ccf1209e3943e28279b94d7f18034686bdae76497f2bd4592f4051a1c0a72
font_01_sfnt_off000077b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B3 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00008040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8040 10076 bytes
SHA-256: 93cd25b804bf24c661ae946068f66e073c23c2cc20fbcb95bba5c991099f89c6

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