MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=500+essential+words+for+toefl+pdf'. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to the same malicious URL and benign-looking PDF filenames, suggesting a lure to disguise malicious redirection. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link embedded within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=500+essential+words+for+toefl+pdf
- http://pefejofok.tiagarrawalk.com/uploads/1/3/0/7/130776760/pesowixoxaxuv.pdf
- http://files.lacindra.com/uploads/1/3/1/3/131398366/401222.pdf
- http://files.hyannisportclassic.com/uploads/1/3/1/6/131607232/xusasuxopudu_busovugozuj_fonijalu_legugunetuzipa.pdf
- http://files.thenerdparty.com/uploads/1/3/1/4/131437669/299d93c6.pdf
- https://cdn.shopify.com/s/files/1/0430/3575/4650/files/86578295223.pdf
- https://cdn.shopify.com/s/files/1/0432/9275/4076/files/automobile_design_engineering.pdf
- https://cdn.shopify.com/s/files/1/0434/7386/2821/files/wowenakosorozi.pdf
- https://cdn.shopify.com/s/files/1/0434/4473/2065/files/wupugofotaki.pdf
- https://cdn.shopify.com/s/files/1/0438/5888/6806/files/xixuferozuginomiw.pdf
- https://cdn.shopify.com/s/files/1/0437/7047/8746/files/89767554614.pdf
- https://cdn.shopify.com/s/files/1/0440/8197/1365/files/vabavapumajaropulik.pdf
- https://cdn.shopify.com/s/files/1/0434/5928/1061/files/xebapesujagopanumiwinaze.pdf
- https://cdn.shopify.com/s/files/1/0432/0811/4340/files/administracion_publica_centralizada_y_paraestatal.pdf
- https://cdn.shopify.com/s/files/1/0432/1725/6603/files/arterial_blood_gases_made_easy.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_off0000a0c2.bin9bd82b6ec0d16b44831da814ac92f451b85304ec05dc2c814e169827b0e67c34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0C2 | 5296 bytes |
font_01_sfnt_off0000b2ed.bin67fe88e688e0f49f4f12d70f2f58e0461a6fd51ff59f30264d665489c422c05d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2ED | 10828 bytes |
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