Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed6e8cec6148bca…

MALICIOUS

PDF

55.3 KB Created: 2020-08-08 18:06:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3dd220dd24cf61fe28bbc458b6cac218 SHA-1: 7b0048b8423fbe495d8088c78313c356b6f56832 SHA-256: 7ed6e8cec6148bcadc9ddfdb641b968e815ff212e6bcb8ab7bbf672dc8b373e5
194 Risk Score

Malware Insights

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

The PDF contains a link farm with numerous embedded URLs, many pointing to a redirector service (ttraff.ru). This suggests a phishing or malware distribution campaign, likely using SEO tactics to attract victims. The ML classifier strongly indicated maliciousness, and the presence of redirector links confirms a malicious intent to direct users to potentially harmful content.

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=anhalteweg+formel+pdf In PDF document text
    • http://files.beautyessencebymerabell.com/uploads/1/3/2/6/132695525/penagikivajixijolej.pdfIn PDF document text
    • http://files.senkohrs.com/uploads/1/3/0/9/130969657/1737241.pdfIn PDF document text
    • http://files.serenehomebirth.com/uploads/1/3/2/6/132695200/b88f4969898f.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/1/0435/2566/9028/files/nugegeliro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4432/1945/files/adobe_premiere_pro_cc_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5601/3205/files/55500873620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/57119826509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/24798873912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3888/4519/files/83025773448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3976/0285/files/a_sample_of_slime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4486/2114/files/wimuratudipewizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3780/2146/files/20279270816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7063/3624/files/vufisakameri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1936/9628/files/github_delete_a_branch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6807/0815/files/logic_gates_and_truth_tables_questions_and_answers.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_off00008f1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1E 5360 bytes
SHA-256: 09f8fa53fc91ad1f5e42b359537ee8d72d480990807074e6840a151550179157
font_01_sfnt_off0000a148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA148 14696 bytes
SHA-256: 0131a302fa6bb08adc6a4109834b6ffbf84d47b0bb560ca335e658964a70dcfb

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