Malicious PDF — malware analysis report

Static analysis result for SHA-256 64fc568bffe03a97…

MALICIOUS

PDF

67.0 KB Created: 2020-08-07 23:53:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a397fb0913fabf2a871506d9d14d835b SHA-1: e16414307cf69a5e94b0b0229e0889ced8967e65 SHA-256: 64fc568bffe03a9777d5e4f60186e78eb3a19f285e280c513e3ec98b22d0e183
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.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution, masquerading as a free download.

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=artritis+idiopatica+juvenil+pdf+gpc In PDF document text
    • http://files.unlvhosa.com/uploads/1/3/0/8/130873794/8868675.pdfIn PDF document text
    • http://files.indianamorganhorse.com/uploads/1/3/1/3/131398598/2150234.pdfIn PDF document text
    • http://files.hyeleedesign.com/uploads/1/3/1/4/131407552/9f7d65e9e7d06.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/1/0437/7808/0925/files/2112536145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/zogedavijorijixabasipufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2240/9125/files/java_swing_o_reilly.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sazofafusogowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/28272304527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/mupiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3150/2749/files/48895521135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/ravikew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6673/files/github_push_to_new_repo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1773/8152/files/tudurezipijijugop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/osrs_skeletal_wyvern_slayer_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/72742141200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3762/9348/files/jijikiporajojexogudaw.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 3

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_off0000c8ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8EC 5448 bytes
SHA-256: 1ea87a8448a45f830807f9518e071ec83c0fa643698b6f803bb0405f096ea668
font_01_sfnt_off0000db93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB93 10420 bytes
SHA-256: 9b1deaac80d1465ee2489de62c21c5c2e4bef2c949afd1f5d03434c3a3099355

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