Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fc1134c707799a7…

MALICIOUS

PDF

74.7 KB Created: 2020-08-12 01:04:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 707537df1c8d24bb60b78e00440bf53a SHA-1: 26bd3fab4cef470256fc1c843442ca4f68137707 SHA-256: 0fc1134c707799a72417146c47e13e9af317126cadcac866dcc9011a57c94ca4
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) disguised as a free download. This indicates a phishing or scam attempt, likely to lead users to malicious content or further phishing pages. The ML classifier strongly supports the malicious nature of this PDF.

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=barefoot+investor+audio+book+pdf In PDF document text
    • http://mosipiru.ourlittlecountrychurch.com/uploads/1/3/0/9/130969754/8002113.pdfIn PDF document text
    • http://muwekani.mhnr.org/uploads/1/3/1/0/131070702/tuxusog.pdfIn PDF document text
    • http://files.mistiesdanceandtumbling.com/uploads/1/3/0/8/130874490/4771285.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/1/0431/1249/7305/files/agile_software_development_with_scrum_schwaber.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/69466652810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8258/7037/files/aptransco_results_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0985/9999/files/61068189084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/ayushman_bharat_hospital_list_vadodara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6778/2808/files/commercial_building_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5152/7842/files/how_to_move_steam_games_to_ssd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7869/7631/files/rulokojokumumivewos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51031200676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/fallout_4_screw_id.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/case_files_pediatrics_3rd_edition.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 2

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_off0000e8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F9 5316 bytes
SHA-256: 176e301c09670bbf1e0f0140d967bc6176f2158b0dc0e6bc958e87a1c841f722
font_01_sfnt_off0000fb1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB1B 10116 bytes
SHA-256: 69a6aaff8fc5dcbb20c0415b980dd7cf5d7f92a04959186cc8980b896fff90c3

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