Malicious PDF — malware analysis report

Static analysis result for SHA-256 0492d601c68e855b…

MALICIOUS

PDF

34.9 KB Created: 2020-08-21 09:20:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f51cbdc3cfab7b18efa3698af72f3ca8 SHA-1: d9ab2a910a4bad97d40abd266ba6f8740c1ec3f2 SHA-256: 0492d601c68e855b97ddc3bfee1da21ec8a2497cfeb689340e122bd64daf7777
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector link farm. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=angry+face+pics+free', which is flagged as a malicious redirector. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware delivery.

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=angry+face+pics+free In PDF document text
    • http://files.fishheadsobx.com/uploads/1/3/0/8/130814515/6ed1c44ac167f.pdfIn PDF document text
    • http://kapij.cardiganbayregatta.co.uk/uploads/1/3/1/4/131438096/cdc3b3557212d66.pdfIn PDF document text
    • http://dowelelu.philipnott.com/uploads/1/3/0/7/130739967/9279962.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/1/0433/0687/7080/files/sitomomuwarusubewikujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/92154262527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0938/4345/files/sepaneroketaxat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6512/2711/files/ich_guidelines_for_analytical_method_validation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/kodumorimiforas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4393/7690/files/tarogutak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8769/9876/files/free_blank_weekly_lesson_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1575/6182/files/62004975768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/75623800693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3750/files/aliphatic_and_aromatic_hydrocarbons_ncert.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2741/4696/files/wink_hub_2_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C96 5244 bytes
SHA-256: 26a0284df050443c79ba4f91eb51d938b61cd923f700cfdee9edb68ad69fd3bb
font_01_sfnt_off00005e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E81 9596 bytes
SHA-256: 5337aaf1a82b6f831ca50a2cbbefb2e5eba3b791c8838b73e93178509a4fe570

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