Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd056748e7f810f…

MALICIOUS

PDF

45.2 KB Created: 2020-08-21 07:33:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bddbb016de20772a2f833d8efd9bd5ca SHA-1: 05cddb7656a49dfd665520530690e91c14e8f21c SHA-256: 8dd056748e7f810f50e0160528702abcd76423a068979ec8dcc4770e3142cfa8
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, indicative of SEO manipulation or a link farm. The primary malicious URL identified is https://ttraff.ru/pify?keyword=basic+c+programs+with+output+pdf. While no scripts were extracted, the structure and embedded URLs suggest a delivery mechanism designed to lead users to potentially harmful content or exploit vulnerabilities through chained redirects.

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=basic+c+programs+with+output+pdf In PDF document text
    • http://pivufarur.peter-m-acland-foundation.org/uploads/1/3/1/4/131407995/jurasarerutumasiz.pdfIn PDF document text
    • http://genel.saraviniar.com/uploads/1/3/2/6/132683071/aadc3d91dc7.pdfIn PDF document text
    • http://files.biofxn.com/uploads/1/3/0/7/130776490/senidif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0679/4656/files/miocardiopatia_dilatada_idiopatica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0390/3127/files/fotegowiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/32929097314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/jutejugijusepipojik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2572/6614/files/xazezesufudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4311/9527/files/walter_benjamin_photography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6228/files/vepadaviponosivebupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/40649695864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5845/2897/files/javascript_global_variable_across_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/43106291823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7909/files/58321619466.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6313 5336 bytes
SHA-256: 3fc8aad0ca8e6b1e52d20768327e83dbeec31e0f67f146b78a75e49bf3b486b6
font_01_sfnt_off00007542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7542 10644 bytes
SHA-256: b0c9ff5c9a618aa52856196f43ed21f5421c451f6ee5fe2fdb18f6859f180df1
font_02_sfnt_off00009991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9991 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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