Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee0c4bb3844de37…

MALICIOUS

PDF

49.7 KB Created: 2020-08-24 12:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f1bb191d44c58414dac12b22824527fc SHA-1: c04ade8c86ee0fb52d1ae51344262d05cca1802b SHA-256: dee0c4bb3844de37e8d11d9b16c2cdc8142e790f9b4eabd9008ce767872bc8f6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=after+effects+photo+animation+template+free'. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a link farm designed to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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=after+effects+photo+animation+template+free In PDF document text
    • http://files.k9perfectiontraining.com/uploads/1/3/1/3/131398430/lofepipul.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/1/0433/2093/4558/files/kakizuxaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7143/1065/files/nijakenumexoguxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/relobonutesalosag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/sizoxivebuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1524/1891/files/bose_soundsport_android_headphones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3033/0016/files/kizivurijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9883/9970/files/vogoximazubize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/kamau_brathwaite_poems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0334/7098/files/list_of_government_engineering_colleges_in_bangalore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/3860/1379/files/fotaparokuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/wasenejabonefomixupete.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 2

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_off000085a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A8 5244 bytes
SHA-256: 509342a228f904ab96048ef4ea72c53d650d369601c2592cd179e3dd67e1f169
font_01_sfnt_off00009751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9751 10124 bytes
SHA-256: df3d1a9ba6d8bd72a01968ba423f85dbba5fd5a0b3f19f098ee891de4e974c1d

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