Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ae9afb0f9b5d5e…

MALICIOUS

PDF

48.9 KB Created: 2020-08-22 13:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c6fc1515ae5a5923034534ccfb05da0 SHA-1: ba507f3f00ff80439f38de65e5ace1938c9dfe0e SHA-256: f2ae9afb0f9b5d5e4bc40efdd9803a48394e788bca930b7deede32c2e77f8967
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for search engine optimization, specifically related to 'Helen of Troy movie parents guide'. This suggests a phishing or scam attempt. The PDF also exhibits characteristics of a link farm, with numerous external links, further supporting a malicious intent to redirect users to potentially harmful sites.

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.com/pify?keyword=helen+of+troy+movie+parents+guide In PDF document text
    • http://files.disabilitymanagmentsolutions.ca/uploads/1/3/1/4/131437149/7b70cc.pdfIn PDF document text
    • http://files.commonscience.net/uploads/1/3/0/8/130813851/1902728.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/1/0437/9285/9293/files/suminedategitatepimak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8542/1978/files/argumentative_writing_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9271/files/nogejavunozowuwesopujug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/wegofowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1554/4737/files/bratislava_attractions_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5919/1712/files/femesejetusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9258/8184/files/job_order_costing_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4842/5889/files/42519654278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8602/8708/files/backstepping_controller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4993/3208/files/dabujovozujivigotunav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/veterozib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/panasonic_hc-_v770_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9008/7829/files/mpbse_12th_admit_card_supplementary.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 2

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_off000081e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E1 5484 bytes
SHA-256: c79cd8409970e9f766adb42b6e84de475d00d93d77e98901ff653cfb23f4b436
font_01_sfnt_off00009477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9477 9848 bytes
SHA-256: 89159608edd887ff10897909c1f779cb406168f8f0e5ec775715259cc7ac4526

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