Malicious PDF — malware analysis report

Static analysis result for SHA-256 f159894ee771fa47…

MALICIOUS

PDF

44.5 KB Created: 2020-08-10 08:10:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5eae8ef8fba5165ef571c1bfdbaf270 SHA-1: 4acfb584b9f42ba1dd56c1c97fb7def99db4ddfa SHA-256: f159894ee771fa4734f1a614920e678fc9d03df962bf5f0c6388e741b675893a
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.cc/pify?keyword=anglosaksonsko+pravo+pdf'. Additionally, it features a large number of external PDF links, many hosted on shopify.com, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. The document body is heavily obfuscated and contains embedded URLs, reinforcing the malicious intent.

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.cc/pify?keyword=anglosaksonsko+pravo+pdf In PDF document text
    • http://files.the-extones.com/uploads/1/3/2/6/132695881/8035498.pdfIn PDF document text
    • http://files.markcornelius.me/uploads/1/3/0/8/130874543/gigobarulugi.pdfIn PDF document text
    • http://files.emeraldis.org/uploads/1/3/1/3/131379904/povujijepazeku.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/1/0434/4381/4560/files/zareg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/jomurasimigiwatibeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5068/7894/files/73791290386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/10597546616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/technical_office_manager_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/vubufasifezasapanajotoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2430/9659/files/xidodexemuxujovipasezeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/www_localmailing_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9820/1502/files/47618346762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2010/8455/files/aadhi_to_word_converter_pro_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/51577533822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9729/1942/files/textos_budismo_zen.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_off00006c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C71 5324 bytes
SHA-256: bd5787639d1c21520fed8a7716ecdbf2c0c8c6344c4496884db35b8107260778
font_01_sfnt_off00007eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAF 11980 bytes
SHA-256: 9162636651ad5678b058a42a9054b3118807e5af9147711e3b5913b1b4e5ac61

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