MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of links to external PDF files hosted on numerous disposable domains, indicating a link farm or SEO manipulation scheme. One of the embedded URLs, https://ggtraff.ru/pify?keyword=comptia+security%252B+get+certified+get+ahead+sy0-501+study+guide+ebook, is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness.
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://ggtraff.ru/pify?keyword=comptia+security%252B+get+certified+get+ahead+sy0-501+study+guide+ebook In PDF document text
- http://files.arena51.my/uploads/1/3/2/8/132814168/30a43e920.pdfIn PDF document text
- http://lugibupar.emiratescabincrew.co.uk/uploads/1/3/1/3/131381806/bazabol-tugibumosep.pdfIn PDF document text
- http://files.poconoavianresearch.org/uploads/1/3/1/4/131409717/lulalulakokoz_fujenezabujupu.pdfIn PDF document text
- http://romumoku.killianfoundation.org/uploads/1/3/1/0/131071290/c535ebfa93344eb.pdfIn PDF document text
- http://files.clare.church/uploads/1/3/0/7/130776164/1985270.pdfIn PDF document text
- https://site-1037188.mozfiles.com/files/1037188/jabulibotaxixawusir.pdfIn PDF document text
- https://site-1037169.mozfiles.com/files/1037169/sonasigagowu.pdfIn PDF document text
- https://site-1038770.mozfiles.com/files/1038770/dujuvinurebafipi.pdfIn PDF document text
- https://site-1037096.mozfiles.com/files/1037096/metinavafanev.pdfIn PDF document text
- https://site-1039210.mozfiles.com/files/1039210/50460061939.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/1/0485/6627/2160/files/67642008606.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1384/8731/files/57465066033.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9512de29-aa1d-44a3-b365-cc0179f31ba2/mixilavanewag.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3eadbaf4-dc5e-497e-927f-3c6b34bed505/89572117144.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e0f300e8-4907-4f2a-ae1b-b405af38e5a2/19157583222.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/54253adc-c009-4da6-92d3-1aaf14682def/50355470946.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71dc8f77-a19e-45f0-b2ee-54fae3430ec5/mevud.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_off0000520e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x520E | 6100 bytes |
SHA-256: e4cc54d72d25eba862e2593fee812cc32584c1c6f9d477e68418faa55728c8e2 |
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font_01_sfnt_off000066b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66B1 | 9868 bytes |
SHA-256: 97ea41c4450f3ac4f8823992ee34f95cfafc420909cf7df8bb3fb3c160f0edf1 |
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