MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, some hosted on Shopify. The document also includes a heuristic indicating it's a password-protected archive lure, suggesting it's designed to bypass gateway security by encrypting the actual payload. The embedded URL 'https://ttraff.com/wb?keyword=umf%2040-1-4%20refractive%20eye%20surgery%20worksheet' is the primary indicator of malicious intent, likely leading to a phishing or malware download site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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.com/wb?keyword=umf%2040-1-4%20refractive%20eye%20surgery%20worksheet In PDF document text
- http://sufetib.christepiscopalmusic.com/uploads/1/3/1/4/131406390/d4d5ddc0246dd.pdfIn PDF document text
- http://files.zoomkidspalakkad.com/uploads/1/3/1/4/131406985/2758958.pdfIn PDF document text
- http://files.powerlandrealty.com/uploads/1/3/2/7/132740260/7668556.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0434/9578/4600/files/45296901788.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7945/7175/files/burasatixevi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3000/3358/files/kipin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5108/8032/files/5371226219.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7205/2643/files/bsc_2_year_chemistry_notes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4744/3865/files/thuthuka_bursary_application_form_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0493/1746/files/disivutavijepot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9229/6359/files/vomamibodejewupupazugagal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7967/2735/files/45866814465.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2736/5031/files/bach_bwv_1004_chaconne_guitar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/0254/7611/files/ncert_biology_class_11_new_edition_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1615/9381/files/8860819306.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9411/4455/files/physical_therapy_assistant_job_description.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0792/5654/files/62373440466.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00015fda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FDA | 5664 bytes |
SHA-256: 645e2a57a94954ad4cad506b659c84e5ee7297986baf1432ed1eb72277665ffa |
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font_01_sfnt_off0001735e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1735E | 14416 bytes |
SHA-256: 25c6c6a367e45c648aec526c8485570ced5c0cae37d4d0657b6fecfcbe90ef91 |
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font_02_sfnt_off0001a0c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A0C0 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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