Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f32f9470fe83265…

MALICIOUS

PDF

39.8 KB Created: 2020-08-05 01:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1cc0357b7197c6782e4afeff1bc9f7ed SHA-1: 7398b3c553afb46bf63a19a108584734f13a647c SHA-256: 5f32f9470fe8326562d437f463097b6df5990016602aeb206fc6f553b378fc77
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector service (ttraff.com) which is flagged as malicious. This redirector is likely used to obscure the final destination, which is part of a link farm designed to appear as free downloads for technical guides. The presence of numerous Shopify links, many of which are benign, suggests an attempt to blend malicious links with legitimate ones. The ML classifier strongly indicates maliciousness.

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=ccie+routing+and+switching+version+5.+1+pdf In PDF document text
    • http://files.mosston.school.nz/uploads/1/3/2/8/132814942/d1ff6ac0721dd9.pdfIn PDF document text
    • http://redovi.woolydogdown.com/uploads/1/3/1/4/131437508/wixepatabi.pdfIn PDF document text
    • http://files.artsypartync.com/uploads/1/3/2/6/132695339/dd183.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/1/0431/6105/9482/files/42986921629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7169/2188/files/larson_algebra_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5123/7022/files/degobitemebirek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3220/5722/files/92818880038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/wovegemizigafimibimogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0355/8564/files/56875575591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1974/7999/files/periodic_table_with_atomic_number_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0210/9856/files/29551613728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/6934910943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/49689920154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5603/7016/files/68977667335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/dilagonejusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6562/0118/files/zatizifaxitexifoza.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_off00005a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A83 5648 bytes
SHA-256: 283f4849117b45bb41b847207b94ae897c590152dc8d3c2fd8fefd4129230d2d
font_01_sfnt_off00006dd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD8 10136 bytes
SHA-256: f8f02281da7627e617bd8997456e72b2f1055a0ad0b889d17bc405758f7b656e

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