Malicious PDF — malware analysis report

Static analysis result for SHA-256 7435cc38b90198f3…

MALICIOUS

PDF

37.9 KB Created: 2020-08-25 05:01:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6678560d912fa032799a22b08f2e10e9 SHA-1: 818e8beb8cdba77ad64170bce84f9af510e4d99a SHA-256: 7435cc38b90198f36cf78b7c6cf3e78c5d6e0f46a9d2801ea3130392920b0ba8
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) identified as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly indicate a phishing or redirection attack.

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=yoshimitsu+guide+sc6 In PDF document text
    • http://files.theredroomproject.com/uploads/1/3/0/7/130775838/5136375.pdfIn PDF document text
    • http://xegop.thepostnatalproject.com/uploads/1/3/1/4/131437850/jumatavolozedamame.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/1/0431/6597/4690/files/solving_and_graphing_linear_inequalities_worksheet_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7573/8527/files/7742370802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6576/9113/files/amtrak_adirondack_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/10716635733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4738/6268/files/89825015507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/formica_sheets_wood_grain.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/battlegrounds_battle_buddy_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2059/7923/files/wukojeforidipazaxovosej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0828/6105/files/bugler_s_holiday.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3785/9735/files/enlight_renewable_energy_ltd_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6062/5562/files/87100948932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/characterization_of_gold_nanoparticles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/40916369866.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 3

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_off000057eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57EB 5128 bytes
SHA-256: c60488832ab22bfdc9424f6fde42bade4f0449ced5573dc1092db67314320b79
font_01_sfnt_off0000693f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693F 9936 bytes
SHA-256: a791357cdaa1fa996836a3c248101a97c2543eac0d301b146fdd83d2ddf50d25

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