Malicious PDF — malware analysis report

Static analysis result for SHA-256 32f3ee37575e9423…

MALICIOUS

PDF

38.9 KB Created: 2020-08-17 13:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c81b0e0c3d0e923ee80684bd2ccda9d SHA-1: 1288363b67436dce0383bd581b912b4734bc8db0 SHA-256: 32f3ee37575e9423455843453b1ddab2583085111f89df07c94980fb0517fe88
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to 'Frozen Fever trailer', suggesting a lure. The PDF also exhibits a link farm behavior, with numerous embedded links to various PDF files, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, and the primary malicious activity observed is the redirection to a known malicious domain.

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=frozen+fever+trailer In PDF document text
    • http://files.lavadaslens.com/uploads/1/3/2/6/132682235/3414056.pdfIn PDF document text
    • http://zaloma.transformalart.com/uploads/1/3/0/8/130873951/8797978.pdfIn PDF document text
    • http://kurad.cheswest.com/uploads/1/3/2/7/132712413/timerazabifolibibof.pdfIn PDF document text
    • http://files.theaffairseries.com/uploads/1/3/1/4/131454034/2699731.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/1/0429/5596/4569/files/analytica_chimica_acta_author_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6708/8791/files/how_to_increase_height_by_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/aws_infrastructure_as_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6761/2063/files/storm_in_a_teacup_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/xejirirekoxajimesifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6274/6517/files/wezaregu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9544/0040/files/instagram_analytics_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/definicion_de_contaminacion_del_aire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9179/5873/files/76184809197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7653/3916/files/5337551433.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 7

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_off00005ba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA7 4648 bytes
SHA-256: 90e122ba9eb431d9afbf35cbb43d9021f5fcdd3295981d0d7d49e1a69b39198f
font_01_sfnt_off00006b91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B91 10360 bytes
SHA-256: 84e2a39057062a1b8ed696e6e9ea0839d1b88863253d59bf889ff6e64e3afdfe

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