Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e2e9e7df41cb91…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 19:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90017bf1a16820fd2f44560bb6b166ba SHA-1: e72245de2ee9164d8f38ef8d0d21139a804bf2ba SHA-256: e2e2e9e7df41cb91efb6da1e7b8b94f1d6fc5f85dbaba53708dec5b21da397a1
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to artificially inflate search engine rankings. One of these links, https://ttraff.ru/pify?keyword=swiftui+by+tutorials+pdf, is identified as a malicious redirector. The document body is heavily obfuscated and appears to contain junk data, but the malicious URL is clearly visible within it. The primary attack pattern is to direct users to malicious infrastructure through these embedded 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=swiftui+by+tutorials+pdf In PDF document text
    • http://files.sry.com.tw/uploads/1/3/2/6/132681824/zajanupubo.pdfIn PDF document text
    • http://guxubowuk.oceansidesda.com/uploads/1/3/2/3/132303124/wabaperadus.pdfIn PDF document text
    • http://files.younggassers.org/uploads/1/3/0/9/130969772/nubawelatuwur.pdfIn PDF document text
    • http://zogego.callanjames.co.nz/uploads/1/3/2/8/132814930/2df2b925d9ddc.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/1/0427/7148/0742/files/top_funniest_family_feud_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7677/0205/files/67183806185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30408896218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1220/9315/files/google_earth_weather.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9578/4600/files/90463955927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/61749419699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7764/8027/files/bilit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4809/2323/files/91097476516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1355/3827/files/cambridge_international_as_and_a_level_computer_science_coursebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/36222848286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/download_free_ringback_tone.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_off00006b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B48 5472 bytes
SHA-256: 8cd2cfa4e843f61bb54be82fa4675b4db805ee7819bf7592756acac83208d283
font_01_sfnt_off00007df6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF6 10764 bytes
SHA-256: 4144e058c86dbb75c69fce4bcc67784f5857730e9044304e4752a6f5494d243d

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