Malicious PDF — malware analysis report

Static analysis result for SHA-256 49cde0e05b72a797…

MALICIOUS

PDF

40.7 KB Created: 2020-08-12 22:31:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02711b3e269edba5755fadf9e77a96e9 SHA-1: e392a08a36c7067bfa4a933fe83ffea14f332ca3 SHA-256: 49cde0e05b72a797553eb5aff28b5e41a50f65ea00f4ee105d0e9720a9f11a36
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs, likely as a SEO poisoning tactic. One of the embedded URLs, https://ttraff.com/wb?keyword=main%20idea%20worksheets%202nd%20grade%20pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to educational material, suggesting a lure to encourage clicks on the malicious link. 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.com/wb?keyword=main%20idea%20worksheets%202nd%20grade%20pdf In PDF document text
    • http://files.hcwildlife.ca/uploads/1/3/2/7/132711965/a0281e28.pdfIn PDF document text
    • http://files.logantstark.com/uploads/1/3/0/7/130740165/batofam_xapulenini.pdfIn PDF document text
    • http://bekowa.biologicalwasteexpert.com/uploads/1/3/2/6/132683014/0e51a6668.pdfIn PDF document text
    • http://files.12utct.com/uploads/1/3/2/8/132814342/908623.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/1/0429/2263/9527/files/junud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38655606666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/capsule_size_chart_acg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/pamazinumonodutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0741/7253/files/sakoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7914/files/96754222106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/medical_english_dialogues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5526/8519/files/php_append_to_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/rojila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7212/6117/files/surface_area_and_volume_of_rectangular_prisms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/ginenedinokid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/43400908813.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 4

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_off0000606f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606F 5564 bytes
SHA-256: a23e003b0a577d966fb8dc2cc04de66c7bd337ab3a42aa7de43e04bfab2ea073
font_01_sfnt_off00007375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7375 10060 bytes
SHA-256: 5424109f311f7cb9403e7d8ff7582121d3ed38b960ea8dcd82ac99fe539799f5

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