Malicious PDF — malware analysis report

Static analysis result for SHA-256 8908fc1cdb3a991c…

MALICIOUS

PDF

50.6 KB Created: 2020-08-20 09:28:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa6933a1e40153916cfa02827ede51da SHA-1: 7066c10fc0a250c1bdf5660c8a7b9b4f140cb5fe SHA-256: 8908fc1cdb3a991c205d7af11e3cd1311eb8deb454e7773e8baa4a440b07272d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a movie download, likely a social engineering tactic to encourage clicks. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

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.cc/pify?keyword=sasural+bhojpuri+movie+all+song In PDF document text
    • http://files.ministryoflove.me/uploads/1/3/1/1/131164402/7427275.pdfIn PDF document text
    • http://files.newwoodfordhs.com/uploads/1/3/0/8/130813645/bcabcfeecafbe.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/1/0428/9835/8432/files/37357510366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4057/5381/files/caries_dental_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8588/1759/files/belhaven_hill_school_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99594865370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9828/3940/files/boards_and_beyond_slides_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5622/6716/files/chemical_principles_peter_atkins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/tank_trouble_3_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3176/3864/files/vawajepigan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/ciaphas_cain_choose_your_enemies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0295/1842/files/30449259145.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 6

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_off00007ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA8 5612 bytes
SHA-256: cf8694100b03eae262ad9b584736876bfde42821102cbe89486bd9a6c68d2fb9
font_01_sfnt_off00008f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F9A 14468 bytes
SHA-256: f04b8e1208b5f02811fd6689f056de11f62ed849fb08a6d632063237c9c6c323

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