MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a deceptive document body masquerading as exercises, but it embeds a link to a known malicious redirector. The ML classifier strongly indicates maliciousness, and the presence of a link farm further supports a malicious intent to drive traffic to potentially harmful sites.
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=achilles+tendinopathy+pdf+exercises
- http://files.kellykeyboards.com/uploads/1/3/0/7/130775921/pakexovutu.pdf
- http://files.katherienclairvoyant.com/uploads/1/3/1/6/131606330/fejupixapimoj_kukazotiwutamor_xivawowe_jogidizix.pdf
- http://files.maltatenantsupport.com/uploads/1/3/1/0/131070313/d2b4523b.pdf
- https://cdn.shopify.com/s/files/1/0432/0729/5140/files/61559783664.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8011835234.pdf
- https://cdn.shopify.com/s/files/1/0431/4647/7722/files/calendar_2020_malaysia_printable.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6587/files/84504104846.pdf
- https://cdn.shopify.com/s/files/1/0431/8032/7076/files/97245807331.pdf
- https://cdn.shopify.com/s/files/1/0429/8915/8554/files/47792381836.pdf
- https://cdn.shopify.com/s/files/1/0434/1448/7207/files/xafelibe.pdf
- https://cdn.shopify.com/s/files/1/0430/6334/5301/files/lojavuwokoliwamoji.pdf
- https://cdn.shopify.com/s/files/1/0428/2561/3475/files/lizom.pdf
- https://cdn.shopify.com/s/files/1/0430/9850/5377/files/96843488957.pdf
- https://cdn.shopify.com/s/files/1/0437/2099/9064/files/27782742747.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_off00006def.bin528090d83941c87de2f52f327a64b7d55f6ceebe73a404fb9556f1e8c9e8d8d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DEF | 5400 bytes |
font_01_sfnt_off0000805b.bin9534257b74c4422ed3d5ef1039beeb95b1a4d1638a1f5d8f9895cb21689051e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805B | 10120 bytes |
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