Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d1f889fe0f91565…

MALICIOUS

PDF

40.7 KB Created: 2020-08-16 18:42:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3af0eef6cdb28f89c406e51f135fd354 SHA-1: 3d5f2b002f8a7d7c12d0e5406ca7eb15f4407663 SHA-256: 2d1f889fe0f9156548026d23c06d3919076758a5b610a88c08a2f66b84711553
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, contains text related to 'Google form multiple choice multiple answers' and the malicious URL, suggesting a phishing lure. The file also exhibits characteristics of a link farm, with many links pointing to Shopify domains, likely to obscure the malicious redirector. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive PDF.

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=google+form+multiple+choice+multiple+answers In PDF document text
    • http://files.withachildsheartllc.com/uploads/1/3/1/6/131606411/6129892.pdfIn PDF document text
    • http://files.jonathanedgingtonwriter.com/uploads/1/3/1/4/131437157/nawalabolonalelam.pdfIn PDF document text
    • http://files.weldonwitness.com/uploads/1/3/0/8/130874329/fdaa511fd3f.pdfIn PDF document text
    • http://files.mathtalks.net/uploads/1/3/0/7/130775350/zoposotegun.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/1/0437/9679/1456/files/16113722802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/windows_loader_xp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/fevonutedabatudivoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/20534242445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5360/5273/files/3842519704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3354/2303/files/waluxogun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0250/2048/files/4096432153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5693/8646/files/isoniazid_davis_drug_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/14401489610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/65502900894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0843/files/el_banquete_de_platon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1129/2827/files/lightroom_app_free_for_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/senanu.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_off00005fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE6 5552 bytes
SHA-256: e2dee5d7f4da8361c3ea7cd6552b0fa20ad68dfddbf820b7a7efd10484018fbb
font_01_sfnt_off000072bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BC 10072 bytes
SHA-256: e09d4894c5b1a647163e0ab5b865543f15b0c95cb1cf3af0b230effb2d6c1527

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