Malicious PDF — malware analysis report

Static analysis result for SHA-256 20ccb34e698cb142…

MALICIOUS

PDF

43.0 KB Created: 2020-08-11 05:32:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9adf95dce4ec65b3b4d554f22d62ce1e SHA-1: 4389a4db76302a81f6813c3c4ce63b6b3d7575b9 SHA-256: 20ccb34e698cb142d7844f74196842a1e5ca0ad2a3568c2dacd255c995699a6d
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=tutorial+de+java+eclipse+pdf', which is flagged as malicious. This suggests the PDF is designed to redirect users to harmful content. The presence of numerous Shopify-hosted links, some benign and some unknown, indicates a link farm strategy to obscure the malicious destination.

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=tutorial+de+java+eclipse+pdf In PDF document text
    • http://files.connielandis.com/uploads/1/3/0/7/130776607/beramajirutod_sefuborusi_zaxidiwagogone_kiwikawixige.pdfIn PDF document text
    • http://files.tanyablackwell.net/uploads/1/3/1/3/131398547/ferajug.pdfIn PDF document text
    • http://files.lakelore.com/uploads/1/3/2/6/132682899/31c57a5ae707d65.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/1/0430/9306/5881/files/pdf_to_word_converter_software_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0972/6870/files/40k_7th_ed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/guxixujovibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/84910689040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1311/0951/files/second_italo_ethiopian_war.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/85498386158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9227/0494/files/mitch_hedberg_cause_of_death.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/sims_3_male_hair_cc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/tanovumobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/32811938505.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 5

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_off00006b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5E 5236 bytes
SHA-256: 2ad8ebbb6cd0a549b928a5cbdb91e5a4d0547a4b2b0e84d57748aa0234747bb8
font_01_sfnt_off00007d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D48 10156 bytes
SHA-256: fc22122a681559f6a889ecc47b762b80292bf87e8cdd9a4b93f27eac2b842f55

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