Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02d1d91ca6d0ce4…

MALICIOUS

PDF

47.9 KB Created: 2020-08-17 06:16:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24107719e8865c81b29b8012170b21b6 SHA-1: 351ae944a9234c98d9b7e39dcb04e0d7a53b93e6 SHA-256: c02d1d91ca6d0ce4a7ca6bfafdc0194924c9b97d2b635111063ed1830f563109
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL. The primary attack pattern involves luring users to malicious infrastructure via deceptive links.

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=single+bed+sheet+size+uk In PDF document text
    • http://files.aroundthepros.com/uploads/1/3/0/8/130814769/guzujofawutef.pdfIn PDF document text
    • http://files.sarahmdenn.com/uploads/1/3/1/8/131856333/wiwutixepojofo-fewukunok-marigejigusute-vuvip.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/1/0428/3318/2886/files/placental_abruption_acog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3339/3309/files/examples_of_hasty_generalization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5012/9813/files/47508065413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/algebra_2_quadratic_functions_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5882/2296/files/58376378246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/xosojewuwuwagojis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9751/files/briggs_and_stratton_31c707_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/xukilixuxube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1620/8036/files/pugetuxupewasididivaviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4498/7292/files/hyde_park_ma_zip_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5376/0162/files/ruvulomagusozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8148/9813/files/gastroenteritis_viral_fisiopatologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9029/4437/files/rufafubisozaxonedet.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 7

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_off00007da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA2 5140 bytes
SHA-256: cc6f9e0a8b6964f3c11886e913b5c4c582d2eeb13d6059635de2f7f0dfe9f022
font_01_sfnt_off00008f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1A 10420 bytes
SHA-256: e34462b718d576ca446b7fe63b327db94c0cd64b64f6dccae80916c29de74c63

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