Malicious PDF — malware analysis report

Static analysis result for SHA-256 196335b99080771f…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 11:23:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 796fd6c6fec6f4791444e207687717b6 SHA-1: d96e8fa6e1f4d87691cf700043e3251ed8973032 SHA-256: 196335b99080771fa01a311ecef819992ea3471a9dd1359aba765912291315af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains text related to website templates and includes the primary malicious URL. The ML classifier strongly indicates maliciousness, and the heuristics confirm the use of redirectors and link farms for SEO-based phishing.

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=creative+animated+website+templates+free In PDF document text
    • http://files.tinforestfarm.com/uploads/1/3/1/6/131607063/salevozezigewod.pdfIn PDF document text
    • http://files.magiciantomanderson.com/uploads/1/3/1/3/131398128/vejinigikobe-zumitovedatiri.pdfIn PDF document text
    • http://neruw.christcommunityonline.net/uploads/1/3/2/7/132740478/6590155.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/1/0438/1304/4386/files/75079345809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/la_jolla_zip_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/nilakodakugupidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/92839950432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/mokataguxapekixakazew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/silakezuxit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5450/5882/files/french_alphabets_pronunciation_audio_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/kujinexulatikovenokito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0373/9294/files/81163864472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/present_and_past_tenses_exercises_with_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6306 5384 bytes
SHA-256: 0316a1922640f5c353e7ace8246ae5396478871d38af251ead06d0cc7b386911
font_01_sfnt_off00007541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7541 2268 bytes
SHA-256: 72a3fe65f0a21df30f240897224061cfa351088b80a4eb601fb5defb198ec993
font_02_sfnt_off00007f53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F53 10132 bytes
SHA-256: 5e8f1fa352b03dbbcd5f075754b60c77c9a5aa1148b2fcea3320c0928dc6d887

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