Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c1ea85c906c0301…

MALICIOUS

PDF

35.0 KB Created: 2020-08-01 23:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0fd40fc717f0d23c8b3f9e8adbdad136 SHA-1: a3be8dc6cea3d9b642c9e4f5304dcb5d8d3e817e SHA-256: 5c1ea85c906c0301bcfe2b2a5ac2ee84a482ff770c2cecc1a843f52d5f599ace
194 Risk Score

Malware Insights

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

The PDF contains a lure related to installing Twitter webhooks to Discord, which is a common tactic for phishing or malware distribution. It embeds numerous links, including a critical redirector link to 'ttraff.cc', indicating a malicious intent to direct users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

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=how+to+install+twitter+webhooks+to+discord In PDF document text
    • http://files.rutter-project.org/uploads/1/3/1/4/131437750/f9fe7c.pdfIn PDF document text
    • http://files.colneyheathvillagehall.com/uploads/1/3/1/0/131069879/9dd594b4e6cef.pdfIn PDF document text
    • http://files.morlandteachesart.com/uploads/1/3/1/3/131384542/8541276.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/1/0428/3708/2271/files/sowejejaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0520/4888/files/jibunovubogipag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5397/2630/files/zimovexegod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/zodakedoviwukadolelorapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/64203893187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/fajila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/79427689426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3484/5079/files/94942197921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3024/files/nenuzavu.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 4

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_off00004b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B80 5284 bytes
SHA-256: 234937286f607d49a1a9a2de2e0bc010669126f5d835608819c630bd96392002
font_01_sfnt_off00005d7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7D 9776 bytes
SHA-256: 214f0802154033e2c5d4bc97a8469c5507eed594a42604f78e7ac7e5cb5831f2

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