MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many pointing to what appears to be a link farm designed to mimic legitimate document repositories. The primary malicious URL, 'https://ttraff.com/pify?keyword=acls+textbook+pdf', is identified as a malicious redirector. This suggests the document's purpose is to drive traffic to malicious infrastructure, likely for further exploitation or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=acls+textbook+pdf
- http://files.crittendenhospitalconference.com/uploads/1/3/2/6/132681979/2a8532e010133.pdf
- http://files.michaelquesnel.com/uploads/1/3/1/3/131397946/wolozinevox.pdf
- http://files.stevewolfeaz.com/uploads/1/3/0/9/130969478/8a8d263adf.pdf
- https://cdn.shopify.com/s/files/1/0444/7754/6663/files/short_report_on_road_accident.pdf
- https://cdn.shopify.com/s/files/1/0435/2026/2308/files/56628172743.pdf
- https://cdn.shopify.com/s/files/1/0432/1522/4996/files/vipewunepunezo.pdf
- https://cdn.shopify.com/s/files/1/0434/0262/5178/files/20309175434.pdf
- https://cdn.shopify.com/s/files/1/0440/7099/4085/files/luxanalebonovol.pdf
- https://cdn.shopify.com/s/files/1/0435/7767/1843/files/jerafosipiwaledagidinela.pdf
- https://cdn.shopify.com/s/files/1/0431/7832/8221/files/36873966576.pdf
- https://cdn.shopify.com/s/files/1/0430/3526/3138/files/20152554729.pdf
- https://cdn.shopify.com/s/files/1/0433/2670/1718/files/89942197125.pdf
- https://cdn.shopify.com/s/files/1/0437/1726/3510/files/dialysis_patient_diet_chart.pdf
- https://cdn.shopify.com/s/files/1/0428/6762/2055/files/english_alphabet_for_spanish_speakers.pdf
- https://cdn.shopify.com/s/files/1/0429/4787/0876/files/analog_and_digital_electronics_and_circuits.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007520.bin092f0d6bf8b2c1696cfee9a1af5f8ca61df2c82bd89ebc7be2f5a3f29b8bcc24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7520 | 5104 bytes |
font_01_sfnt_off0000869d.binf18cbf63e1d68b9daff4cfabd3748ba2c4d91d7efe846df6c8ebf551792d5c1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x869D | 10372 bytes |
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