Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e8462a2c478eca8…

MALICIOUS

PDF

51.9 KB Created: 2020-08-16 13:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: add41ccc3ce6e2b3a18ec08edfe9f1fb SHA-1: a5e24be7b2f7d24174f53ce16217be6f341ba4f2 SHA-256: 1e8462a2c478eca88ba919a8953b6cde63d06859a2764e47ab9718f6a7d901b8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file was flagged as malicious by an ML classifier and contains numerous embedded links. One critical heuristic indicates it's a PDF redirector link pointing to 'https://ttraff.ru/pify?keyword=scope+statement+template', which is likely used to obscure the true destination of the attack. Another heuristic identified it as a PDF SEO link farm, with 28 external PDF links, suggesting a large-scale distribution or obfuscation effort. The document body itself is heavily obfuscated and contains the suspicious URL.

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=scope+statement+template In PDF document text
    • http://files.adamsmnhistory.com/uploads/1/3/0/9/130969446/e64716b6035.pdfIn PDF document text
    • http://files.mistyhollowlabs.com/uploads/1/3/1/6/131637224/pifonip_nemodolaxotuv_dojizo_pezetuneva.pdfIn PDF document text
    • http://files.mustardfitness.com/uploads/1/3/1/3/131383763/nategexo_jidonamonewi.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/1/0433/0687/7080/files/39806276645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/83798792072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/85039516114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5911/6182/files/zabijalate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/67236107401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5897/7178/files/wagenoxazujajisad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5816/5925/files/arriba_comunicacion_y_cultura_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6072/9758/files/tambien_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4681/4374/files/2016_honda_pilot_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/56757045243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/81809617671.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_off00007ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE4 4824 bytes
SHA-256: 792ba169ce383425268c47397631b5efa774dea44ebf5e0c121e87afd4d8d90c
font_01_sfnt_off00008b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B24 13196 bytes
SHA-256: 1850093bafdd126f5d7b2730978ceb8257c5245db90fde6d2be5e2952b1e13ae
font_02_sfnt_off0000b51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB51E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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