Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d0fd41fca414ab…

MALICIOUS

PDF

64.6 KB Created: 2020-08-23 02:07:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 642a3629a988fcdf1dbaf0911fb992d4 SHA-1: 01078eed83c9d31cbee35538303f95162cb2c586 SHA-256: c4d0fd41fca414ab23f97b1ce2269f50d0840e3e6d15789e427beb11727c1e0a
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to a URL that appears to be a lure for movie downloads. The document body, though heavily obfuscated, contains text related to 'play tamil new movies 2019' and the malicious URL itself. The PDF also exhibits characteristics of a link farm, with numerous external links embedded within it.

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=playtamil+new+movies+2019 In PDF document text
    • http://files.invictahealthcare.net/uploads/1/3/0/7/130776646/fesofijijol.pdfIn PDF document text
    • http://files.mhsclassof1976.com/uploads/1/3/1/4/131438161/61f70e894e6b.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/1/0429/9476/1877/files/bupagipix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8310/4409/files/typescript_formatter_vscode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/wedawadodadonawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/solidworks_surfacing_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3973/0336/files/banking_awareness_arihant_publications_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5072/9634/files/petekelexatuzosozobojizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/persona_bergman_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/transporters_3_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3382/files/best_hollywood_movies_free_websites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8379/1517/files/how_life_insurance_works.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/wimaparadakazarenezixeluk.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_off0000b864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB864 5472 bytes
SHA-256: 34c08ed9579379fd3af665f46fbb4b229ba55a689312ac95a5a393af32283156
font_01_sfnt_off0000cb0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB0B 13240 bytes
SHA-256: 02659d4c16b11b200f7149d6b57b05dce79db63490dc192bdda6619d083ccf38

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