Malicious PDF — malware analysis report

Static analysis result for SHA-256 032d28f3cc4c7914…

MALICIOUS

PDF

43.2 KB Created: 2020-08-20 05:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 975ccc2eea95489bd68583d4e784f66b SHA-1: 425dd3fc24f42ad373b8158399f95e4dfb1b4580 SHA-256: 032d28f3cc4c7914d02fc34a0d499d014e67f17b3689c05ab30e36ca9811f1d3
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to a 'chapter 5 review congruent triangles answer key' and the URL itself, suggesting a lure for users seeking academic help. The presence of many Shopify links, some benign and some unknown, indicates an attempt to blend malicious links with seemingly legitimate ones. The ML classifier strongly supports the malicious verdict.

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=chapter+5+review+congruent+triangles+answer+key In PDF document text
    • http://files.niwotptac.com/uploads/1/3/2/3/132302768/8803648.pdfIn PDF document text
    • http://files.areaokc.com/uploads/1/3/2/3/132303024/6203709.pdfIn PDF document text
    • http://files.rainshadowdrents.com/uploads/1/3/1/4/131453733/3381595.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/1/0437/9151/5805/files/swot_analysis_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3675/1525/files/gate_mathematics_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6535/1073/files/sikedap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0711/4391/files/firirivova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/ntr_biopic_songs_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7327/2998/files/63181558936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8540/2013/files/anlise_qualitativa_de_dados.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7006/files/28874457214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4571/4077/files/wonifuwagigagifuvu.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 6

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_off0000694e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694E 5544 bytes
SHA-256: 4a033a40b0cde1af2ed1f08a578796b8e0514afdddd83374d0c03224de46d405
font_01_sfnt_off00007c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C44 10408 bytes
SHA-256: 99def16326a643246d30bb07786adefdbb030a6bc6d998558105f776ced7c3d8

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