Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e9195abd73ed1d…

MALICIOUS

PDF

39.0 KB Created: 2020-08-20 08:08:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee3f22f19869a22051d6f8989f44cde8 SHA-1: 62d051e194963930f244b8c8f21013e9a287d45d SHA-256: c5e9195abd73ed1d0a52881afcb5f5779731f4693ba274747d6ae3dbaa943c8a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=code+vein+blood+codes+guide'. Additionally, it features a PDF link farm with numerous external links, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious redirector indicates a likely phishing or malware delivery attempt.

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=code+vein+blood+codes+guide In PDF document text
    • http://files.newlifetucson.com/uploads/1/3/1/4/131483097/tewololux.pdfIn PDF document text
    • http://warozesep.afsardmdlab.com/uploads/1/3/2/8/132816165/7404495.pdfIn PDF document text
    • http://files.garealpropertylaw.com/uploads/1/3/0/7/130739986/3324373.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/1/0434/2166/3397/files/lanitaxanuvetikajosulofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6818/files/javascript_static_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2040/9256/files/82528935664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6112/5013/files/75915002380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7780/2911/files/connected_speech_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/jitodubufoneminaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/wejinejitetitiwurikedinap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5713/3221/files/schengen_visa_form_italy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/kejebetof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6038/8262/files/andela_home_study_curriculum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1682/9603/files/35916731022.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 5

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_off00005c4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4E 4908 bytes
SHA-256: 6cd7105ff5035d29c100655bd84f6e55289f9b4236c5764f08713615d00a6c7b
font_01_sfnt_off00006d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D19 10084 bytes
SHA-256: d05c2c70c37bfeab0ff860b903e6febc75193567776f60600f2334560c3c67b4

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