Malicious PDF — malware analysis report

Static analysis result for SHA-256 c96d6574949d67b2…

MALICIOUS

PDF

33.6 KB Created: 2020-08-06 09:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41df0dd9851b137dba31f28da8168795 SHA-1: 68dbc14561eb5b7c57936371ee055d95ccddc551 SHA-256: c96d6574949d67b2bbac7fce1aab8b9f19573623103ac465483323bd2ce4e93a
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with the primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=balkanski+ratovi+knjiga+pdf' which is likely intended to lead the user to a malicious site. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content.

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=balkanski+ratovi+knjiga+pdf In PDF document text
    • http://files.d-93constructionupdates.com/uploads/1/3/0/9/130969151/xawagapopipuxa_kilefupi.pdfIn PDF document text
    • http://files.pierceplayers.org/uploads/1/3/0/8/130874655/5141163.pdfIn PDF document text
    • http://files.advanceprolighting.com/uploads/1/3/1/3/131398334/vowopad-pujiwanosijeru-kotikesolore.pdfIn PDF document text
    • http://files.alphafitnessclub.com/uploads/1/3/1/1/131164132/videfazagulo-zifedenixaf-damowoguviv.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/12339474235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1935/3767/files/89591182395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3401/6924/files/39853558592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1597/4561/files/meaning_of_market_economy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3798/1852/files/12138252311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3277/files/bodas_de_sangre_simbolos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8396/4324/files/51076038244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6785/4248/files/difference_between_organic_and_inorganic_compounds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/kaworu_x_shinji_doujinshi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0558/files/48089579914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7141/3160/files/86311471896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7944/8216/files/10055748366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9468/8423/files/gamevepul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/safuginogatujato.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000470c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470C 5456 bytes
SHA-256: a506fe590341014b3e7f387a059a45aeb0a250a7bc1c5ddaf29b79414a3bcf81
font_01_sfnt_off000059be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BE 9324 bytes
SHA-256: 0136a47f44b06ad49a45ef9f111e35c8e59f772e6c41fe655fed3f55318ea936