Malicious PDF — malware analysis report

Static analysis result for SHA-256 d11796eb65ee2a0a…

MALICIOUS

PDF

103.2 KB Created: 2020-07-30 17:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 780a923de9556f2a8cf3fc91c37b2d8a SHA-1: 8846a67151fb0b5d2b0259c7dc7db32dc149a627 SHA-256: d11796eb65ee2a0ab7829a56c01dbf9de47cbc6de847a961a906f11b31bc14dd
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.com/pify?keyword=behaviourism+cognitivism+constructivism+pdf', is flagged as a malicious redirector. The document body is heavily obfuscated, but the presence of numerous external links suggests a traffic-driving or SEO-spamming campaign.

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=behaviourism+cognitivism+constructivism+pdf In PDF document text
    • http://files.pjfxstudio.com/uploads/1/3/1/4/131407691/6471219.pdfIn PDF document text
    • http://files.gethealthmassage.com/uploads/1/3/1/8/131871786/1ed402c01.pdfIn PDF document text
    • http://files.bhi5.com/uploads/1/3/1/4/131408415/xotesurimix.pdfIn PDF document text
    • http://files.activetrainingandtherapy.com/uploads/1/3/1/4/131437131/31529ac93e6.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/1/0431/4903/3627/files/99548897888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3120/7837/files/pemabepomabenuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/vebuzejelabivixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5235/files/sododivetagakina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/61598425654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/70478121402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/41051897349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8941/8657/files/rojijefazavuxawusukilez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xakikalimakimoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0632/8985/files/xegagesipidiget.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6944/8097/files/6680074062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2344/8736/files/kimofipabududasotuvami.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_off00015822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15822 5528 bytes
SHA-256: 81c0cc64f773d5ba38f9450be2bffd8e2737cc0ae4fe4e9fa2ca62c761bda24a
font_01_sfnt_off00016ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AD5 10552 bytes
SHA-256: db53283b1c6e5c9cbf929e1457963ae0bf8f4f79bd9a024e461b45f30f0937fe

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