Malicious PDF — malware analysis report

Static analysis result for SHA-256 9945d2ca55eee2e4…

MALICIOUS

PDF

44.4 KB Created: 2020-08-05 18:28:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66f2740eaebd0d82860aab0794edb76b SHA-1: a4119b8221f5551b05865deaa264d4ac07eab200 SHA-256: 9945d2ca55eee2e4dc1af37e8e8cf4d624d0f35cd14a6feaca78cf850fa90469
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL. The combination of these factors strongly suggests a phishing or redirection attempt to a malicious site.

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=siuda+gramatyka+angielska+pdf In PDF document text
    • http://files.storybookdelivery.com/uploads/1/3/0/8/130815115/fa5e4451ee7b754.pdfIn PDF document text
    • http://files.cdipuertorico.com/uploads/1/3/0/7/130738875/dusovekagix_bejovilagena.pdfIn PDF document text
    • http://files.fancyworldusa.com/uploads/1/3/1/8/131856065/1388087.pdfIn PDF document text
    • http://files.jlnjspac.org/uploads/1/3/2/6/132682210/1c7a0af7.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/1/0431/7410/1149/files/tuxofolijisusesofad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/color_code_in_css.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/tatidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/88087698556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/14281664687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3615/5809/files/tajoxadaxivebal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7713/9613/files/wings_of_fire_book_11_read_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4667/4336/files/54000348331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/bank_of_baroda_fd_rates_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4695/9261/files/starborne_sovereign_space.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9239/3640/files/50337318784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/vewufevovojabeniliv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2823/1830/files/denomination_comparison_chart.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 8

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_off000069fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FB 5628 bytes
SHA-256: 7a0ff186497b36e1d8499cb6014837200577a87ba0078a43035ff724dc8ee324
font_01_sfnt_off00007d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1A 12496 bytes
SHA-256: ddb0f204ed053334262e33e9b6d970d39860d784101ea75f13cbcee9348b7c60

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