MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=toefl+ibt+reading+comprehension+pdf, which is also listed as a malicious redirector. This suggests the document is designed to trick users into clicking the link, likely leading to a phishing or malware download site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=toefl+ibt+reading+comprehension+pdf In PDF document text
- http://files.shoptrueblessings.com/uploads/1/3/0/8/130813582/7401691.pdfIn PDF document text
- http://files.caffegiocondo.com/uploads/1/3/0/7/130739778/acfb797ab.pdfIn PDF document text
- http://files.ratingsguru.net/uploads/1/3/1/4/131406202/rukuginotak.pdfIn PDF document text
- http://files.islandresearchph.com/uploads/1/3/0/7/130739275/545d99c236c07ae.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/1/0430/5082/7929/files/varezobirijenor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/xezobuvuz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9446/4929/files/classic_man_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0406/0071/files/wcf_test_client_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7508/4193/files/zizutowenufod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7298/8071/files/76817156544.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3723/7146/files/kigususojitofigidavex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9654/7230/files/tatugemovapod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6605/5063/files/zakuwoxag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2462/9411/files/76915692706.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6323/8056/files/jama_sepsis_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5670/9288/files/16372521271.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000065d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65D6 | 5660 bytes |
SHA-256: d1401bbcbcbddcb674af3e2162b8a852886be28927f87aa37f9bb325870e7cc3 |
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font_01_sfnt_off000078e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78E6 | 10016 bytes |
SHA-256: 2e3a5a89c62c24da7904c2f712fec65677d29121bcab05d2232bdaaa1937cb24 |
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font_02_sfnt_off00009b60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B60 | 16144 bytes |
SHA-256: 18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b |
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