MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector, and another identified a large link farm. The document body, though heavily obfuscated, contains text related to 'spherical bearing size chart pdf' and a URL that appears to be part of the malicious infrastructure. The primary attack pattern involves luring users to malicious sites through a deceptive PDF.
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.cc/pify?keyword=spherical+bearing+size+chart+pdf
- http://zukuwut.californiatradewinds.com/uploads/1/3/0/7/130776257/b810465860ba.pdf
- http://situviwu.simpsonchorus.com/uploads/1/3/1/0/131070161/dagabo-gadixazito-pebujapoxob-xabumaxivu.pdf
- http://files.pacificmotelandrvpark.com/uploads/1/3/1/3/131379948/19df3b8ed72c.pdf
- http://files.lillyotasevic.ca/uploads/1/3/1/3/131379456/e9bed3.pdf
- http://files.laureatetranslation.com/uploads/1/3/0/8/130814308/7542172.pdf
- https://cdn.shopify.com/s/files/1/0431/6063/3504/files/67089311599.pdf
- https://cdn.shopify.com/s/files/1/0430/4365/1735/files/28595013392.pdf
- https://cdn.shopify.com/s/files/1/0428/3446/0828/files/94560802353.pdf
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/78318068265.pdf
- https://cdn.shopify.com/s/files/1/0434/5954/3192/files/4168811451.pdf
- https://cdn.shopify.com/s/files/1/0434/3411/5233/files/gumul.pdf
- https://cdn.shopify.com/s/files/1/0431/3228/9180/files/ralodutul.pdf
- https://cdn.shopify.com/s/files/1/0434/7507/5225/files/characterization_of_lactic_acid_bacteria.pdf
- https://cdn.shopify.com/s/files/1/0433/9879/1329/files/22308389156.pdf
- https://cdn.shopify.com/s/files/1/0430/6223/1201/files/oral_b_triumph_professional_care.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_off00005a71.bin2978c148940bc6106c437148f7720096a118e7d3862cfa0c45ba7bca6b181bdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A71 | 5712 bytes |
font_01_sfnt_off00006de0.bin10cea1e4bd38cb81eedc3140e464033f855061222bf0b1032cac18d8fa11f314 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DE0 | 10360 bytes |
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