Malicious PDF — malware analysis report

Static analysis result for SHA-256 814a14b36547b4e2…

MALICIOUS

PDF

42.1 KB Created: 2020-08-10 23:23:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a212ad9afb05ea3008eebcb9b6e798aa SHA-1: 4c9eea8b379d8f4ca1d8c5e6ca327a00e9fbc1dd SHA-256: 814a14b36547b4e2eaf1eb150f820a53ae3a3b1b06c373a594ad1fd0d45dfa63
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, also contains the same redirector URL, suggesting an attempt to disguise its malicious nature. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a phishing or malware distribution attempt.

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=health+optimizing+physical+education+pdf In PDF document text
    • http://files.shoplockettlashes.com/uploads/1/3/1/4/131437926/zopumebekibozix.pdfIn PDF document text
    • http://files.sirwaffle.com/uploads/1/3/0/9/130969826/degor.pdfIn PDF document text
    • http://files.dorxiesbrowsandlashes.com/uploads/1/3/0/7/130775092/diloroxirome_kikorupokofuxi.pdfIn PDF document text
    • http://files.marcyearthscience.com/uploads/1/3/0/7/130739004/484846d58ada9.pdfIn PDF document text
    • http://zidewovi.haleykatharine.com/uploads/1/3/0/7/130739678/vuzid.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/1/0430/7753/3856/files/rugadujuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0819/5738/files/94394875848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/58354385231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/lujaxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7029/1096/files/95288402798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5530/7159/files/barenikavegoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/nepovijevifexewabevuzep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3391/9645/files/dubalofuduromizevigone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/89058565131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8306/2678/files/raxoginewuvenewaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7587/0613/files/wojimurolurikoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9471/3244/files/sawogeteserixugunupib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6991/4782/files/converting_binary_numbers.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_off000065db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DB 5588 bytes
SHA-256: 28ee994ad6f25a0bb69770689d9e1c5ef1aa2b33c04d787b03b9042eab0a5a27
font_01_sfnt_off000078cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CD 10120 bytes
SHA-256: a557e53b89ceebdbe4a761796af47eabaccf40c4d76742215311fcc53a79b6c4

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