Malicious PDF — malware analysis report

Static analysis result for SHA-256 90d460149f082b8e…

MALICIOUS

PDF

40.8 KB Created: 2020-09-12 00:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcaf26f814f27f0f6802b0533573c307 SHA-1: efed347f2355c82c028707261dee2bb7aa7726e6 SHA-256: 90d460149f082b8ee9813bab4ce919ef04f7cb02d45e5a6695a3c7067af6f826
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the malicious URL, suggesting a lure to a malicious site. The primary attack pattern involves SEO link farming and redirecting users to potentially harmful content.

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.me/wix?keyword=ajax+form+field+data In PDF document text
    • http://tosekedik.crypto-decrypted.com/uploads/1/3/0/7/130739366/3780770.pdfIn PDF document text
    • http://kunox.richlandcountydemocrats.com/uploads/1/3/2/6/132682787/puduz-verupifonese-newutafif.pdfIn PDF document text
    • http://files.petraviam.com/uploads/1/3/0/7/130775633/1947d614eed8612.pdfIn PDF document text
    • http://files.michelepetersonart.com/uploads/1/3/0/7/130775286/136576.pdfIn PDF document text
    • http://jajutojeg.hackneykeepournhspublic.org/uploads/1/3/1/6/131637354/8b0b0a2.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/1/0483/9440/3998/files/konica_minolta_bizhub_c220_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/poemas_de_amor_gustavo_adolfo_becquer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1321/files/got_season_2_episode_1_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1840/1430/files/bosquejos_evangelisticos.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7aabb2_31d9bdf192ce4ce2a3f4e74b03b4e123.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bc84a3_eb7f7398674d48a8a67847f01ed77637.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9ea91e_cabc3b63ff014afaaaf85f65add077e0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0889/0792/files/watch_my_hero_academia_two_heroes_en.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0777/7702/files/35985309150.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_off00005ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1 5008 bytes
SHA-256: 80547757157d943aaee79b5ac9dacdbe5d0095a8afecd20792d8fc266476c425
font_01_sfnt_off000070ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EE 11116 bytes
SHA-256: b14e452ac38ea119241e36dc5a04758e95182255fc951c2266fffcac01d12ab2

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