Malicious PDF — malware analysis report

Static analysis result for SHA-256 9019035665b06102…

MALICIOUS

PDF

39.6 KB Created: 2020-08-03 14:40:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cef2baff55a2070b9926e6aa6b5525c SHA-1: 02ee1d44ed26732c9db0188fee61dacb07cb7d7b SHA-256: 9019035665b0610225f3f2613595838059b616abe0f984deb7dea862c6de2c18
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, directing users to download other PDFs. The primary malicious URL, https://ttraff.com/pify?keyword=dictionary+of+synonyms+and+antonyms+alan+spooner+pdf+download, acts as a redirector to potentially malicious content. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a social engineering attack pattern.

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=dictionary+of+synonyms+and+antonyms+alan+spooner+pdf+download In PDF document text
    • http://files.lydiaannflymasters.com/uploads/1/3/2/7/132712676/pizakeronapoga.pdfIn PDF document text
    • http://files.chemungfire.com/uploads/1/3/1/4/131454523/0dff161.pdfIn PDF document text
    • http://files.ackthaihouse.com/uploads/1/3/1/6/131637074/c59c0dcd.pdfIn PDF document text
    • http://files.triplehhunting.com/uploads/1/3/1/1/131164399/7164613.pdfIn PDF document text
    • http://files.kcsaussies.com/uploads/1/3/1/4/131452942/1289109.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/1/0435/4880/3227/files/39245332220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5023/8101/files/sanosanetomozufux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/nafexemalaleletu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3599/0936/files/tiponujidapados.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/14519620181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/52281709825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6148/6503/files/98358134109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/43222986019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2742/1608/files/zamatexizutufe.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_off000059b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B4 5492 bytes
SHA-256: aab3aca1ec4b17ac632e296eb88141c8a4bfb51f85671e424dfa64e82749e32c
font_01_sfnt_off00006c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C70 10704 bytes
SHA-256: 38d1fa4267e04f3538e819d6f830cfb05d02ce1cab0b7c01f2bb0f7e3b171494

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