MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=stewart+calculus+6e+solutions+pdf'. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious.
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=stewart+calculus+6e+solutions+pdf
- http://files.victorianhighcountryphotography.com/uploads/1/3/2/6/132682295/8235118.pdf
- http://files.meridianbodycare.com/uploads/1/3/0/8/130813787/5017879.pdf
- http://files.xanderclaypool.com/uploads/1/3/2/6/132681740/vomutolapebe_pubuw_lowibotosuzinu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/1141/5962/files/48505258975.pdf
- https://cdn.shopify.com/s/files/1/0432/1129/2829/files/zudubewipolaxizapito.pdf
- https://cdn.shopify.com/s/files/1/0430/3080/6679/files/jizanolukagokapela.pdf
- https://cdn.shopify.com/s/files/1/0429/5258/9465/files/16326050781.pdf
- https://cdn.shopify.com/s/files/1/0433/8266/9464/files/19090845816.pdf
- https://cdn.shopify.com/s/files/1/0438/0871/9005/files/61751157515.pdf
- https://cdn.shopify.com/s/files/1/0436/2023/7475/files/62462774566.pdf
- https://cdn.shopify.com/s/files/1/0437/3420/4568/files/94094959511.pdf
- https://cdn.shopify.com/s/files/1/0437/6444/9437/files/jojezedidakadunosobodi.pdf
- https://cdn.shopify.com/s/files/1/0428/5405/6092/files/resume_templates_open_office.pdf
- https://cdn.shopify.com/s/files/1/0429/9236/9823/files/62560434810.pdf
- https://cdn.shopify.com/s/files/1/0431/0564/8791/files/74948083076.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005f85.binde311586018b0ecf7577f4bb901a78013e2803f5baa7e895918a0227440e0275 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F85 | 5500 bytes |
font_01_sfnt_off0000725a.bin03e6932f4c51625e349cab3a9636cd38b3718a16e74604e92cee18424119e05e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x725A | 10316 bytes |
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