Malicious PDF — malware analysis report

Static analysis result for SHA-256 19d0926d8c0e3b7d…

MALICIOUS

PDF

41.8 KB Created: 2020-08-17 09:21:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4595827e72c032c86575395ee5469a0e SHA-1: c38f0ff99975c3639c63121dd9a0efa1a40e2f2f SHA-256: 19d0926d8c0e3b7d40ac4271820a83e42464a8002f0feb08610437c7a908d056
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to what appears to be a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.ru/pify?keyword=bed+reviews+consumer+reports', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure under the guise of providing information.

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.ru/pify?keyword=bed+reviews+consumer+reports In PDF document text
    • http://files.keenecinemas6.com/uploads/1/3/1/3/131383456/dabetejajuw.pdfIn PDF document text
    • http://files.jabaclub.org/uploads/1/3/0/8/130814749/0a5b845.pdfIn PDF document text
    • http://niwamujur.capstoneifg.com/uploads/1/3/0/7/130776688/8ace91699b402.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/1/0432/2210/6271/files/rational_emotive_behavior_therapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6143/files/carrots_and_sticks_don_t_work_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3266/6524/files/black_s_law_dictionary_4th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/20719669315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/61020927101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/kids_pix_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/31792383494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/75515191839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5242/5631/files/27760294577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2765/0970/files/6297943275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/67789347951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4650/9461/files/winchester_1897_shotgun.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
🗂 Part of campaign: keenecinemas6.com 3 samples

Related samples 1

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_off0000648a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648A 5180 bytes
SHA-256: 7850ea8c1f97eecf7b5a840d1636e38db0313e4f756dc25667b2cf5525ebce2f
font_01_sfnt_off00007624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7624 10644 bytes
SHA-256: 2a67ad6dc0e153871b426d31e2a54de5ef3438be73cb7bde9c1c994459c52970

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