Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3c547bff5860c9…

MALICIOUS

PDF

46.8 KB Created: 2020-09-10 05:51:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4281f7168e76faae98635b39595c2a70 SHA-1: ccf2636b93926f00bffedbf7224cca36d95f4143 SHA-256: 0d3c547bff5860c9ea209d8a8db9c12237ce1f7b6c4ebe7b605e1aa3215f27af
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that point to a redirector known to host malicious content. The document body, though obfuscated, includes the text 'Vmware l3 level interview questions and answers' and the malicious URL, suggesting a lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of numerous external links further supports a 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.link/wix?keyword=vmware+l3+level+interview+questions+and+answers In PDF document text
    • http://files.amanapopcornandicecream.com/uploads/1/3/1/3/131380337/poluferasitafame.pdfIn PDF document text
    • http://sojaf.shamanicpathandpractice.com/uploads/1/3/1/8/131871980/5860886.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/9f2514_c8d180d26b9a41e99be1916ff92e0441.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bdeb4c_60362f6430104e99b02fb854fb868c95.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_33addcbd8a7c4947b9607219c9691ddd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8089/9991/files/3339090582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/3310/9156/files/honeywell_thermostat_user_manual_th5220d1003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9459/files/ammonia_rocket_fuel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4452/7511/files/gigiwidalosenelenojiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/gakofalojelug.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/865d50_e4651ea78a124a0dacd803e44866278e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b1277d_e243d2317b85403b8fff47fbd9bcf864.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/122077_ccc5c3cbcae24b098c90dbbc10ad59f4.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_off00007861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7861 5380 bytes
SHA-256: f059c54c181a43adea9a58b1d617efbe4ce0525e038f5b3162e9226c66317332
font_01_sfnt_off00008aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA8 10464 bytes
SHA-256: 7edc6cb8d64a9bb84bab71cc64127c4e6e06a84027222d54bebf2b05de6f02ad

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