Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b66f0bbec0d805…

MALICIOUS

PDF

42.0 KB Created: 2020-08-20 18:33:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cba283cfe957278153d1f8762d58c5b0 SHA-1: e575439affe9a7113bff89510ad76ed97e511ef4 SHA-256: e0b66f0bbec0d805a73e639682c41b8d1e7183512b852c92629d640cbffb6cf4
194 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a high number of external links, many of which are part of a link farm. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body contains garbled text but also includes the URL that triggered the redirector heuristic, suggesting a lure to a malicious site.

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.cc/pify?keyword=relev%25C3%25A9+d%2527+emploi+guide+employeur In PDF document text
    • http://files.vistapaseohomes.com/uploads/1/3/0/8/130873965/cb1fc9b1c95.pdfIn PDF document text
    • http://xunixivi.ozgurince.co/uploads/1/3/1/8/131856543/tuguzutanoxok-jafis-lutirikatenuvon.pdfIn PDF document text
    • http://files.slosymposium.org/uploads/1/3/0/7/130739369/pibabulibogo.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/1/0433/7244/5846/files/xevelipapuzof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6488/3355/files/android_phone_contacts_backup_to_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/joxenegezuleka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/jeloroduwafajikatisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7592/8215/files/42019890832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/xikomeposavitip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0449/7818/files/74462529002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/79874140370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5288/4117/files/silent_letters_in_american_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9516/2022/files/7387544593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1839/3499/files/zikalevebizosoroveviro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/sintomas_de_ansiedad_generalizada.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_off00006322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 5236 bytes
SHA-256: 558fc61294fbe9bf43ae235a6982a86bad07aa6888360276a2ecfd49453c0d81
font_01_sfnt_off000074b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B2 11372 bytes
SHA-256: db1279eafe3eb847f5617fcebb75a631d870d715004c453bfc316c41e9abbb35

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