MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=crib+sheet+define'. The presence of a large number of external PDF links suggests an attempt to manipulate search engine results or distribute further malicious content. The ML classifier also strongly indicated maliciousness.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=crib+sheet+define In PDF document text
- http://zigupenov.folkestonechoralsociety.org/uploads/1/3/1/3/131379803/9066935.pdfIn PDF document text
- http://files.alwaystherepetcare.com/uploads/1/3/1/4/131406893/52148c99f57.pdfIn PDF document text
- http://files.sclapparel.com/uploads/1/3/1/4/131438641/zinekuxitonor.pdfIn PDF document text
- http://files.inverlochhomecrew.com/uploads/1/3/1/4/131437276/kawafibuxir_rojilesaguxuro.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/1/0434/3644/1767/files/52350947902.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5435/1015/files/dugamos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6750/6845/files/41977058033.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5488/1175/files/89759495942.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6789/0069/files/strategy_under_uncertainty_harvard_business_review.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0043/0746/files/59435308464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0333/1231/files/34964179560.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/2604/9182/files/fusionner_mac_sierra.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7525/3910/files/80729099787.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3685/9813/files/biwijebafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2331/9715/files/tosekinusigagut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8609/4242/files/fundamentals_of_organic_chemistry_john_mcmurry.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6440/0798/files/25703175259.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000677c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x677C | 4796 bytes |
SHA-256: b3ee4fcca34a09ce9183e263b305f6f01657dcb6c990166b8695707d7eac9450 |
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font_01_sfnt_off000077c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77C2 | 10524 bytes |
SHA-256: 009774ad5a3eeb77d48c1179ecee835ad43daaa6d47536567740a7f99d68fe0f |
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