MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links to external PDF documents hosted on numerous disposable domains, indicating a link farm or SEO abuse tactic. One of the embedded URLs, 'https://ttraff.com/wb?keyword=2009%20matrix%20service%20manual', is identified as a known malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The primary goal appears to be directing users to potentially harmful or unwanted content through a deceptive link distribution.
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.com/wb?keyword=2009%20matrix%20service%20manual In PDF document text
- http://files.artemleaders.com/uploads/1/3/0/7/130775116/e5839db.pdfIn PDF document text
- http://files.holistichealthactivation.com/uploads/1/3/1/4/131437778/1409502.pdfIn PDF document text
- http://files.vomhiddencreek.com/uploads/1/3/1/6/131606127/kukuko.pdfIn PDF document text
- http://files.rockyroadduo.com/uploads/1/3/1/1/131164252/c4efddbfedf.pdfIn PDF document text
- http://files.quasilocum.com/uploads/1/3/1/3/131380733/dazepip-tefifipipewesex.pdfIn PDF document text
- http://files.waiheelimu.org/uploads/1/3/1/6/131607174/nomuvawezilamaranu.pdfIn PDF document text
- http://files.celiamai.com/uploads/1/3/1/4/131406108/449b2eb758.pdfIn PDF document text
- http://files.mrskenny.com/uploads/1/3/0/7/130739377/4593132.pdfIn PDF document text
- http://files.willowfree.ca/uploads/1/3/0/7/130740344/xiwodufa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://sifuvuviluz.files.wordpress.com/2020/06/paxanonuragabitazalijurar.pdfIn PDF document text
- https://talujudi.files.wordpress.com/2020/07/12410382652.pdfIn PDF document text
- https://wekekikozet.files.wordpress.com/2020/07/85875639903.pdfIn PDF document text
- https://gunurineso.files.wordpress.com/2020/06/43500726084.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9142282406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vinujavezo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.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_off0000451f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x451F | 5180 bytes |
SHA-256: 0a764a38d0f809d799a57683a02ed33a57053cefa56a75acb12a8bbbdbad708d |
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font_01_sfnt_off0000569d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x569D | 9004 bytes |
SHA-256: f6b9263b4e66bafebf7ee9583819008562d79a12fde1ad4b9353865ee92b046d |
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