Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd799a66754ca1ab…

MALICIOUS

PDF

43.7 KB Created: 2020-08-08 12:32:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e49a01fd006048d4095fe6d57bcef88 SHA-1: c8870d152daa4f07a294d34037b9c10aab885349 SHA-256: bd799a66754ca1abf58946fbb7d50de8ade4268ff5e53a387a4a050495d370a6
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to '5th grade math multi step word problems pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The primary malicious URL is ttraff.com, which is identified as a malicious redirector.

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=5th+grade+math+multi+step+word+problems+pdf In PDF document text
    • http://jopasig.arielmeylanart.com/uploads/1/3/1/6/131637136/1569964.pdfIn PDF document text
    • http://files.caseyslife.com/uploads/1/3/2/7/132740564/texabod.pdfIn PDF document text
    • http://files.bakerymadbatter.com/uploads/1/3/1/6/131607662/3257884.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/1/0434/4021/0072/files/fiseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1155/4980/files/nujipesigonab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/javascript_zero_pad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6350/0197/files/kujagadejirijiximilakiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2388/3688/files/essentials_of_corporate_finance_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7545/2569/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8419/3696/files/97430168892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/21440936943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2890/5127/files/67880901427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1378/3203/files/process_auditing_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/15652832499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/guveworibiwopafefuvan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0769/files/xavibunopugadopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/nomiwebivolidamakiserav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/gunigekeguzo.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 3

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_off000067fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FE 5716 bytes
SHA-256: 76a1e3e4d8a52ca2ff72d2447b15833b5e7c380736becd4ea5e21fa897f60698
font_01_sfnt_off00007b50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B50 11628 bytes
SHA-256: 2f32ac0330caa113e59fcb8859526153afb2e71a7802d1d14b78a0d8f702a00c

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