Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfb08594d037bb7d…

MALICIOUS

PDF

40.0 KB Created: 2020-07-25 19:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 498f385c18a11b2786fff0e0eda39748 SHA-1: 692ca1d49d39f56673ce97f708748fdcb8c3528a SHA-256: dfb08594d037bb7dda9f7759416caf231eeff3ae3fe625bbdf8f1ae82fae7a2d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is presented within the document body, which is heavily obfuscated but appears to be a lure for educational worksheets. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains, likely to obscure the malicious redirector.

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=comprehension+sequencing+worksheets+for+kindergarten In PDF document text
    • http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.pdfIn PDF document text
    • http://files.realtalkwsimone.com/uploads/1/3/0/9/130969166/6377380.pdfIn PDF document text
    • http://files.soulvisionhealing.com/uploads/1/3/0/8/130813025/gizajone-xijajijaxer-xotosi-moxokimira.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/1/0436/5117/0457/files/91541849483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2358/0830/files/metozubisep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/48277318068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/40163364612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/dafot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0708/1622/files/43600211759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1316/8542/files/gefotolovadepevoned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6369/5770/files/nuburaxezedag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/94612255591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4464/9630/files/3708135652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5898/6150/files/46038200059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/kemevidofujusej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/93534009924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9041/9620/files/3317476433.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 8

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_off00005d74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D74 5724 bytes
SHA-256: 620028a78c8c885068908b8fa53c16c2c1ae01bff23639acd9b0277d5db90bae
font_01_sfnt_off000070d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D3 9784 bytes
SHA-256: 851ee822d6b5753e5c3c3e305b149b33adcfbdbac5b32d0fa519569676dd2ba6

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