MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and links to a known malicious redirector infrastructure, ttraff.com. The document body, though heavily obfuscated, contains text that appears to be a lure for "Chicago fire season 6 guide". The presence of embedded JavaScript and the malicious redirector strongly suggest an attempt to exploit vulnerabilities or deliver a secondary payload. The ML classifier also flagged this PDF with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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/pify?keyword=chicago+fire+season+6+guide In PDF document text
- http://files.poweryogaflow.com/uploads/1/3/0/7/130739544/1208677.pdfIn PDF document text
- http://nudowokox.arcadianvacationrentals.com/uploads/1/3/0/9/130969352/kakim.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/1/0433/2306/4488/files/36027853364.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3669/5959/files/clinical_cardiac_pacing_defibrillation_and_resynchronization_therapy_5th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3351/8489/files/amphigorey_too.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/9646/1732/files/97801636860.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2259/8823/files/love_is_like_oxygen_lyrics.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7206/8520/files/anestesia_epidural_em_caes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0046/1474/files/lazomabakejuxuvus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8100/7255/files/40560744738.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_off000066f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66F1 | 5228 bytes |
SHA-256: df5052560dd714adf38652938d9def5a5c392207e604d6259c915efa4a348fb8 |
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font_01_sfnt_off000078a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78A4 | 9884 bytes |
SHA-256: 5e2dde4580253d55e1528afc3b9c420abf9da8ec248cce06bd14904d395bd9d5 |
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font_02_sfnt_off00009a72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A72 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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