Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e73d247bfda7e19…

MALICIOUS

PDF

47.0 KB Created: 2020-08-08 23:09:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ec4223e7c8fa1439c4e15dc153c0388 SHA-1: 8806e64c9be2d22dd8ad06a648ab266176533efe SHA-256: 6e73d247bfda7e19de8f1bb5627b5ce494dd4eb0f453d66d1ce74e9fed241530
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of an SEO link farm designed to redirect users. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=statistical+analysis+with+r+book+pdf', suggesting a phishing or scam attempt disguised as a book download.

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=statistical+analysis+with+r+book+pdf In PDF document text
    • http://files.jeanducasse.com/uploads/1/3/0/7/130739398/rurepusig-kegimatijemupal.pdfIn PDF document text
    • http://files.mylifesaparody.com/uploads/1/3/1/4/131453402/3779088.pdfIn PDF document text
    • http://kalinow.hollandelementary.net/uploads/1/3/1/4/131482975/2346985.pdfIn PDF document text
    • http://files.texascenterforregionalstudies.net/uploads/1/3/1/8/131856381/29afc.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/1/0436/6155/7913/files/xivusetaxujiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/kupinobixowukolusog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8772/2648/files/call_log_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puliwaxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevuwuvufotolotatagonisex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6660/3158/files/bezoxexoxibolubigenajume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9072/9376/files/wyrd_sisters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/cali_move_workouts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2252/3288/files/71029079994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56325204281.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69EC 5416 bytes
SHA-256: 412d05baf554f9be109298e7696a8c3269c37f5cd961079428057e36a4da3d3f
font_01_sfnt_off00007c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C41 10672 bytes
SHA-256: 8b129f35a367b7eacaa362502301e4321b92bd3ff7bf118bbb25f2bb4779b669
font_02_sfnt_off0000a0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C4 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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