MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the target URL and several other PDF links, suggesting a social engineering attempt to drive traffic to malicious infrastructure. The ML classifier strongly indicated maliciousness.
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.ru/pify?keyword=introduction+to+anthropology+psychology+and+sociology+grade+11+textbook+pdf
- http://files.nicoletiu.com/uploads/1/3/1/4/131483255/0984bdf4c06f286.pdf
- http://patikob.carolinewisejourney.com/uploads/1/3/1/4/131407005/gefakovagoko.pdf
- http://files.facsglobal.com/uploads/1/3/0/9/130969146/putewesorezikuw.pdf
- https://cdn.shopify.com/s/files/1/0436/1850/0765/files/types_of_foundation_in_civil_engineering.pdf
- https://cdn.shopify.com/s/files/1/0431/6617/1297/files/bigawedifatofu.pdf
- https://cdn.shopify.com/s/files/1/0430/5541/5445/files/gakevovisaribokaro.pdf
- https://cdn.shopify.com/s/files/1/0429/1916/6105/files/lobiz.pdf
- https://cdn.shopify.com/s/files/1/0428/4914/0902/files/nazubiselevonajis.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdf
- https://cdn.shopify.com/s/files/1/0454/4344/8990/files/sizaraxajikusif.pdf
- https://cdn.shopify.com/s/files/1/0435/5466/8705/files/anorexia_y_bulimia_en_nios.pdf
- https://cdn.shopify.com/s/files/1/0433/1136/6309/files/75314383324.pdf
- https://cdn.shopify.com/s/files/1/0427/8861/8396/files/53040151055.pdf
- https://cdn.shopify.com/s/files/1/0428/5664/4774/files/77134241790.pdf
- https://cdn.shopify.com/s/files/1/0428/5802/1027/files/administrao_por_objetivos.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_off00007fe3.bind3c6eb408c087e0c8a8dfaf4108b933d15c6bad02cb8a9b5a9f908b5c880ea1d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FE3 | 5780 bytes |
font_01_sfnt_off0000939a.bine70d01e7a2c05e2234441371bda83193e897864c6bc3ed3fca1606bf97275b6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x939A | 11232 bytes |
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