MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF contains a large number of links to external PDFs hosted on disposable domains, indicating a link farm designed to distribute malicious content or traffic. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=chemistry+book+pdf+12th', is known to redirect to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. The presence of numerous links and a redirector suggests an attempt to lure users to malicious sites, potentially for exploitation or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=chemistry+book+pdf+12th In PDF document text
- http://files.cailenfu.com/uploads/1/3/1/4/131437444/rutez_wubusaxofab_kajali_zuwogor.pdfIn PDF document text
- http://files.dualcredit23.com/uploads/1/3/0/8/130873951/e3dfb.pdfIn PDF document text
- http://files.gsskids.org/uploads/1/3/0/8/130873973/korunavo.pdfIn PDF document text
- http://files.wanderlustlilies.com/uploads/1/3/1/3/131380138/7831267.pdfIn PDF document text
- http://files.rioxpvista.com/uploads/1/3/1/6/131637034/36c763c9765.pdfIn PDF document text
- http://files.isoandbusinessexpert.com/uploads/1/3/0/8/130813797/noxodak.pdfIn PDF document text
- http://files.nicolemillersandiego.com/uploads/1/3/1/8/131857193/5d76c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://pizitotilu.files.wordpress.com/2020/07/18073155933.pdfIn PDF document text
- https://mutubugeg.files.wordpress.com/2020/06/dezegarase.pdfIn PDF document text
- https://pobizabaj.files.wordpress.com/2020/06/pozetememewilojoj.pdfIn PDF document text
- https://tusabudedak.files.wordpress.com/2020/07/furuwepekotivemibes.pdfIn PDF document text
- https://pulixaxokuk.files.wordpress.com/2020/07/69141147811.pdfIn PDF document text
- https://saziwiri.files.wordpress.com/2020/06/66556222387.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67572949107.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46552055365.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sedafasejizal.pdfIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E38 | 5232 bytes |
SHA-256: 11e11a159bf7cd6938a643106f5da350df8932d5dba50e0b3c2b6b19db057945 |
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font_01_sfnt_off0000800c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x800C | 10192 bytes |
SHA-256: f332a71c2a2c77368ac980f0de929c4cfcb9e0b49de99597026a31d5abacb84a |
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