Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ba96b9909f6256…

MALICIOUS

PDF

45.6 KB Created: 2020-08-17 01:02:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5ccd8c0ee81ff37f961e9467ea2a118 SHA-1: c3bd30a60d5a9e552b541614d92a57ded2722d42 SHA-256: 65ba96b9909f625629d8f879576cdfae7ab609bd9d48e7bdb3efecb53c2643ec
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.ru) which is flagged as malicious. The document body and heuristics indicate a lure for free downloads, likely a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.

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=livingston+international+pars+cover+sheet In PDF document text
    • http://files.maurerandstrange.com/uploads/1/3/1/8/131871467/jobigesu_dogojirafiji.pdfIn PDF document text
    • http://newesuzof.casperstith.com/uploads/1/3/1/4/131407406/zadojogizofo.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/1/0431/4651/0504/files/fundamentals_of_multinational_finance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6462/3265/files/sexujedoxoxaxaluvomep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/44081610952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4195/6775/files/fenopemakirifabinej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/11582773504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6224/5029/files/bulk_density_of_aggregate_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8229/3141/files/ks2_science_light_and_shadow_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/46828915931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7064/files/cipet_hajipur_online_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/raxuvodif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0475/5096/files/92107976705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3514/0007/files/my_silver_lining_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/ziwusugerexavazulalo.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_off0000690e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690E 5196 bytes
SHA-256: 5752d3be2dc8344c9a70e32209ab891b1cab70ff4e9b2a0cbfd1670488a85001
font_01_sfnt_off00007ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AC0 14964 bytes
SHA-256: 3fe3ddec8cc2c6d2f93302ae784a0a0bca1d69d5c85a7d06454095aab438ecad

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