Malicious PDF — malware analysis report

Static analysis result for SHA-256 52b0f40a25f4afff…

MALICIOUS

PDF

41.3 KB Created: 2020-08-14 20:27:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7386fc73786ad282487a8b2cae4c834b SHA-1: b6d5734a59b231aaac05a6b21290decf034811cb SHA-256: 52b0f40a25f4afff81d3aab9faea1d665b306f019aceeca971a764492e4cd17c
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'. This URL is likely used to funnel victims to a phishing page or malware download. The document also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which are hosted on Shopify but ultimately lead to the malicious redirector. No scripts were extracted from this sample.

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=apple+phone+ringtone++zedge In PDF document text
    • http://files.americanrootsuk.com/uploads/1/3/2/8/132814900/5052726.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/1/0430/7353/6149/files/70738026100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6464/6042/files/46330331363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9293/0716/files/sociolinguistic_theory_chambers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/free_screen_recorder_no_root.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6661/2130/files/19259485985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4233/9992/files/23928171442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/add_text_to_ubuntu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3518/files/alg2_antragsbegrndung.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0898/1152/files/badulifaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9285/files/bejuwepujizafunaxanisugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/38505402778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3958/0575/files/makalah_titrasi_argentometri.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_off00006562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6562 4872 bytes
SHA-256: 9e013ca53b77bdf46014e5874b3fb2ac6765b76edd4a4059e69bdfa0d56d0617
font_01_sfnt_off000075f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F4 10256 bytes
SHA-256: 2c39733721439a10f9d5017816ed1cc333a49da3bb2ecdd110f9ebe4f22f0d7b

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