Malicious PDF — malware analysis report

Static analysis result for SHA-256 496938a90228736d…

MALICIOUS

PDF

47.5 KB Created: 2020-07-29 21:19:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbe09086320b7d8f8829d20da97d20e3 SHA-1: 1eba77ab8a673e28fdfe9548e12f8901f2ccecd7 SHA-256: 496938a90228736d934f40d3c21550c1095431cb78adc2edea1c500ed36d87f8
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify-hosted PDFs, a common tactic for link farms. One of these links, ttraff.cc, is identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to be junk data, suggesting the primary purpose is link distribution rather than content delivery.

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=algorithm+in+c+language+pdf In PDF document text
    • http://files.mjshslionbackers.com/uploads/1/3/1/3/131383949/3d255b5a6fb0.pdfIn PDF document text
    • http://files.scentedgrove.com/uploads/1/3/1/4/131409037/f113746d3ce.pdfIn PDF document text
    • http://files.hungary2korea.com/uploads/1/3/1/4/131454270/1a2b153.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/1/0434/4925/4041/files/xetedibikogusexoxukul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66916333827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/bivuvuxubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/76774281720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9462/9788/files/vimiwazobodolagineta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/28477501948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9611/2294/files/datovirurujomuginolem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/zalapesunerokoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/6778085903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/lekokekivixupijivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6835/0873/files/99881348791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4293/8784/files/6666883566.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_off00007a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A89 5260 bytes
SHA-256: cc63b0296ac495584cb33d3aaf7526fdfa4fe6c6c45f390e8bfae350165aa981
font_01_sfnt_off00008c3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3D 10664 bytes
SHA-256: 077ab6edc92a22854252f70974127659d7701a0043d9288813efc9a179572df4

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