Malicious PDF — malware analysis report

Static analysis result for SHA-256 cafd75f2e0ca952d…

MALICIOUS

PDF

33.1 KB Created: 2020-08-19 12:06:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 420505329a6e06e3a56bfc8eb9687e03 SHA-1: 836753e4e580886bc5b075e1b8042f3970725afd SHA-256: cafd75f2e0ca952d055897ebf2930e488f217fb9b482b8515dc409cfb0deced0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing indicating it's a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=munna+bhai+mbbs+video+song++3gp`. The document body, though heavily obfuscated, contains text fragments that appear to be related to the lure, such as 'Munna bhai mbbs video song 3gp'. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on `cdn.shopify.com`, suggesting an attempt to distribute malicious content or manipulate search engine results.

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=munna+bhai+mbbs+video+song++3gp In PDF document text
    • http://sekan.compoundincome.org/uploads/1/3/1/3/131384169/22a23eeaf5.pdfIn PDF document text
    • http://files.lovegrowscsa.com/uploads/1/3/1/4/131407493/6044760.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/1/0429/9449/9743/files/2059640937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/kawaniretagopotanum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4019/2150/files/principles_of_modern_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0843/2027/files/19827107821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/system_analyst_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9614/9921/files/model_bye_laws_of_the_co_operative_housing_societies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4470/9276/files/33034963112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/sword_fighting_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0745/1041/files/26499271028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6303/3502/files/2731894660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8401/files/rewidemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6204/2529/files/william_alexander_painter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1311/0951/files/riesgos_laborales_en_odontologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/minirefotapobizezuloxot.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 3

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_off0000475c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x475C 5616 bytes
SHA-256: 4e538fc19bd0f3ff2230a75f461e20b6101a9480df82f41c18af1eaddadb8e05
font_01_sfnt_off00005a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5B 8596 bytes
SHA-256: ec314bfd7b9a03d07c58a73f5134ab77b5fd10d36a4744cb274bd0fce26ffd60

Open this report in the interactive analyzer, or submit your own file for analysis.