MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.club'. The document body, though heavily obfuscated, contains the same URL and references a download for 'School 2017 ep 2 eng sub', indicating a lure. Additionally, a PDF link farm heuristic was triggered, with multiple links to Shopify-hosted PDFs, suggesting a broader campaign to distribute malicious content. The primary malicious IOC is the redirector URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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.club/wix?keyword=school+2017+ep+2+eng+sub+download In PDF document text
- http://vemib.cdjff.org/uploads/1/3/2/8/132814930/1a1f3b79771.pdfIn PDF document text
- http://kodafoful.elportalschoolptg.com/uploads/1/3/1/6/131606666/3302135.pdfIn PDF document text
- http://gapoto.redwood4h.org/uploads/1/3/0/9/130969525/nanuva_xofol_zurobuxelupete_jodidabitito.pdfIn PDF document text
- http://sibakozas.emilytiberio.com/uploads/1/3/0/8/130814328/bomiwaku-ravemiboworumax-nolejezokonuz.pdfIn PDF document text
- http://suvovame.naturalhealthclinicni.com/uploads/1/3/1/4/131483067/betekem_wajufiwukaduti.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2556/2791/files/australian_visa_subclass_600.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3268/8293/files/gta_4_cheat_keyboard_for_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/4769090923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5455/4533/files/que_es_la_albumina_de_huevo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/3843/3429/files/xirefofanepikevun.pdfIn PDF document text
- https://b6be57da-225b-464c-afaa-0b41eb7f1957.filesusr.com/ugd/136d3d_f6e81f716462404a8dd58ee3facad347.pdf?index=trueIn PDF document text
- https://423431a6-4a33-4ef9-9fad-2d15003f254c.filesusr.com/ugd/abd6ea_e1c617c5bf9e4e62a783ea1a57c589e3.pdf?index=trueIn PDF document text
- https://7eedaa87-c12a-40a1-8412-2501d0449535.filesusr.com/ugd/02631b_aa5dd933db8c41eaac74465c3e72de82.pdf?index=trueIn PDF document text
- https://d1176cc5-e45f-49cc-bfcd-58ab16864ad7.filesusr.com/ugd/3254bf_4fdcb9faab4b450d8faa9652ec42fb3b.pdf?index=trueIn PDF document text
- https://d32bd628-ee14-469a-aa40-4fbb7f78e665.filesusr.com/ugd/e745be_1d58b85717814b19a4102a71fae0cb09.pdf?index=trueIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000545c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x545C | 3128 bytes |
SHA-256: 5a8f7ce9ebeaf0900c8c15bbaf43cbb83bc6d79f52337e2234af6b253ee6515f |
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font_01_sfnt_off00005f98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F98 | 5980 bytes |
SHA-256: 5f9a838f9d32361710339cd33d378f235789d172d8bca388918c0169c8e6f966 |
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font_02_sfnt_off00007407.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7407 | 10008 bytes |
SHA-256: c5dd16d138d92d2934973a0e5c766408bbdaf6fbcbba7292e5f9d6496025fb86 |
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