Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa390c6900582b1…

MALICIOUS

PDF

39.5 KB Created: 2020-08-20 06:55:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79f71b134f4215d36784c2bdc4536aff SHA-1: b466513058a172c1475e99489b0de50e336fcc21 SHA-256: 2fa390c6900582b1c4a84bef135f127ab42339573a8034670e9c5ad44c543c08
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 of which point to benign content on Shopify. However, one critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is disguised as a judicial review guide. This suggests the document's primary purpose is to lure users to malicious infrastructure. No scripts were extracted from this sample.

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.cc/pify?keyword=administrative+court+judicial+review+guide+2019 In PDF document text
    • http://files.abclassics.nl/uploads/1/3/2/7/132710780/velasawarenejukemejo.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/1/0429/0691/0876/files/angle_between_two_lines_problems_with_solution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/78218111647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6302/3518/files/jatatofusebafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/entrepreneurial_development_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7667/1895/files/dexelaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2323/5232/files/30634725789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4179/9843/files/check_your_aviation_english_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3393/5519/files/mcgraw_hill_10_act_practice_tests_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7058/6016/files/7753387659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1711/7601/files/anemia_por_deficiencia_de_hierro_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/27712261301.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 1

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_off00005af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF1 5956 bytes
SHA-256: 49bf5dc8d50965a8cbdd5987fe59082a74dd8a92abae7ea55281bdc4157fe926
font_01_sfnt_off00006f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F32 9960 bytes
SHA-256: 130fc3275ccc265865177689fc2afdc54bd9f5b9ef79787c74214d8bf2e4b8d2

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