Malicious PDF — malware analysis report

Static analysis result for SHA-256 75ccd9207cb5c27c…

MALICIOUS

PDF

39.0 KB Created: 2020-08-23 07:27:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb65cca3893cebb1ee1c3584b65cd390 SHA-1: 3451c87fd45149ff8792ceaaa43f547b02f6c07c SHA-256: 75ccd9207cb5c27c3742043451a498b6f0ed596fe17993f5981a48e052db9b9c
194 Risk Score

Malware Insights

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

The PDF contains multiple links that redirect to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a phishing attempt, masquerading as a resource for 'Google forms allow multiple answers' to entice clicks. The ML classifier also strongly indicated maliciousness.

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=google+forms+allow+multiple+answers In PDF document text
    • http://files.atthebarredanceacademy.com/uploads/1/3/1/4/131454521/rejaba.pdfIn PDF document text
    • http://jolutuz.littleoasisequine.com/uploads/1/3/1/4/131454950/8130861.pdfIn PDF document text
    • http://files.artsuppliessouthland.com/uploads/1/3/1/3/131381259/zagufokapanama.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/1/0430/2556/3801/files/school_dance_rangers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/gamini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0687/6055/files/26868446583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2394/9224/files/sasural_simar_ka_serial_episodes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4428/1247/files/karez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5060/6497/files/64853767797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/233950289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8338/2427/files/45389412426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1227/5870/files/bolozeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/jajevaziv.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 1

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_off000059cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59CD 5344 bytes
SHA-256: b2727f56daf998ba4793e78bc78f7fd853cc301fbbe8b33fae166b0458d43b63
font_01_sfnt_off00006c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C03 10236 bytes
SHA-256: 765577604dafe24b15f4784857f33fc591e9b055f112f60b9e6edc102ffe7c0e

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