Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ad94b6b7f323c60…

MALICIOUS

PDF

37.4 KB Created: 2020-08-15 01:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3da54567d73f7b4bcf5bdde3bb3b41a6 SHA-1: 3cf9cb11264ed15543368a3c653bc86514ca4b04 SHA-256: 0ad94b6b7f323c60dffadf48a8e5708be3cd34ee04602e950687aa3b189bf138
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. The document body text and embedded links suggest a lure for free downloads, likely to phish for credentials or deliver further malware. The ML classifier strongly indicates maliciousness, and the presence of multiple external links, including a link farm, supports a malicious intent.

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=3+bedroom+flat+plan+drawing+pdf In PDF document text
    • http://files.judicheco.com/uploads/1/3/1/6/131607712/9605056.pdfIn PDF document text
    • http://files.mnpropertyrights.org/uploads/1/3/1/6/131606275/rebebi.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/1/0430/5308/8919/files/aura_kingdom_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/madurivunizetepige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6245/0586/files/noziruxuzesafekedujutujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1885/4306/files/80836251136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3802/files/paxonizobejiluvetekuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2135/1587/files/676807649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/22207583268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/65120872535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/lizizisamelipajeriv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/repasolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1936/9639/files/bebazetibuvubafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2096/6298/files/52355242762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7637/1110/files/html_to_javascript_react.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_off00005549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5549 5484 bytes
SHA-256: d346c8bf0891f090162bb3c37f0a2c6173328713b96d797b2b7b659dc6449c95
font_01_sfnt_off000067e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E4 9616 bytes
SHA-256: 18c80e94ed4c79ddf464ef4150545440f9bcefe17fc80a95e5966011259fae8f

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