MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'free reading worksheets' and the malicious URL, suggesting a lure. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating an attempt to drive traffic to malicious infrastructure.
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=free+reading+worksheets+for+5th+grade
- http://files.soulsai.studio/uploads/1/3/1/6/131606550/46d94.pdf
- http://files.oncopods.com/uploads/1/3/1/8/131856518/dunoxuz_kudanozeta.pdf
- http://files.obempire.com/uploads/1/3/0/7/130738752/newafigaboriwog.pdf
- http://bizurireb.jaymcclellan.com/uploads/1/3/2/7/132712358/xilowigupifuvodonep.pdf
- http://gutexe.greenkeyconcreteforms.com/uploads/1/3/0/7/130740141/fevoge.pdf
- https://cdn.shopify.com/s/files/1/0439/1639/4648/files/serafokakezeduwabuvirem.pdf
- https://cdn.shopify.com/s/files/1/0434/8916/5478/files/cpwd_works_manual_2020.pdf
- https://cdn.shopify.com/s/files/1/0429/9482/7415/files/jiveromorifes.pdf
- https://cdn.shopify.com/s/files/1/0431/3976/0285/files/bba_all_subjects_notes.pdf
- https://cdn.shopify.com/s/files/1/0438/9748/7512/files/jobibiwikesijawopitu.pdf
- https://cdn.shopify.com/s/files/1/0431/0473/1300/files/fiwuluniropupepib.pdf
- https://cdn.shopify.com/s/files/1/0430/3332/9817/files/13209280164.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lasuzopaxikabade.pdf
- https://cdn.shopify.com/s/files/1/0431/7049/6672/files/dofadetijunete.pdf
- https://cdn.shopify.com/s/files/1/0440/9887/9640/files/72428302145.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46905239833.pdf
- https://cdn.shopify.com/s/files/1/0432/7315/8821/files/liveboj.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000066cd.bine6c10113b3776448e0f135642feacd81c80e9b87070f871e89681d4b33b0f0d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66CD | 5160 bytes |
font_01_sfnt_off0000786d.bin3acab988cd721a8751b0eb6eb46999816c3712e20fafa489a9cc0529026ccb5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x786D | 10764 bytes |
font_02_sfnt_off00009d0a.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D0A | 4324 bytes |
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