Malicious PDF — malware analysis report

Static analysis result for SHA-256 252050303375c04b…

MALICIOUS

PDF

40.9 KB Created: 2020-08-06 07:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec78d66a8fc1c4fe44b032c1a2bdf76f SHA-1: 0062178f6619f568960dd13e5c14d64af9e9b364 SHA-256: 252050303375c04bd8da2baedcad5c1e5a407fcd418cac7b445c0a25f6405beb
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service, and one specifically identified as a malicious redirector for 'epfo kyc form pdf'. This indicates a phishing or scam attempt designed to lead users to malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=epfo+kyc+form+pdf In PDF document text
    • http://files.jacktaylorphillips.com/uploads/1/3/0/8/130874599/760be0591.pdfIn PDF document text
    • http://files.rabbiklein.com/uploads/1/3/0/7/130738534/karavididujal-mukawimaxumekax-genawada-munovine.pdfIn PDF document text
    • http://files.alexandradeviveiros.com/uploads/1/3/1/0/131070331/7593914.pdfIn PDF document text
    • http://files.ginnyleehomes.com/uploads/1/3/1/8/131871622/5409955.pdfIn PDF document text
    • http://files.lachongsd.org/uploads/1/3/0/8/130874317/e9607386.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/1/0429/6874/4087/files/fanijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/45638809660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3035/1770/files/difference_between_isotonic_and_isometric_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/rewuboxizipusujokipavugef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/69169448561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/wepalabolivagumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2910/1735/files/ion_profile_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0392/6952/files/38525746318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/muzatalawejexid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/99098523877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/dofuxi.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 8

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_off000061f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F1 5004 bytes
SHA-256: 3b429274d61c5cf6b5b7232640da8ab4f877c8bcf417bed0e55e403440b160df
font_01_sfnt_off000072f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F7 10568 bytes
SHA-256: e5d0c181f06724c998023380837d89653da664f803c7b35e394d5ec943afe7eb

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