MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, including one disguised as a cover letter for a system administrator, which redirects to malicious infrastructure. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-optimized PDF links suggests a link farm used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing lure designed to redirect users to malicious content.
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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/pify?keyword=cover+letter+for+system+administrator+pdf In PDF document text
- http://ravesepa.claireallegrataylor.com/uploads/1/3/1/4/131406893/8646902.pdfIn PDF document text
- http://files.chardoncommunityactionteam.org/uploads/1/3/1/3/131384018/pugotut-newifuniz.pdfIn PDF document text
- http://files.pbadesigngroup.com/uploads/1/3/1/4/131437724/fulizuzibepi_felularopi_gizuburokir.pdfIn PDF document text
- http://files.newdurhamschool.org/uploads/1/3/1/4/131453907/rekut-xabuwuz-rukokigiwu-tewidofafoma.pdfIn PDF document text
- http://files.artbylucymott.studio/uploads/1/3/1/3/131384281/berugod.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/9888/1704/files/fodubugogigumabarejejak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4818/1666/files/36331098459.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2858/6402/files/xubirizasinazalufozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1733/8005/files/rilumolig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9469/5318/files/69542860123.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6761/3082/files/treasure_bruno_mars.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0071/7727/files/dajiwutetulutejulu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8298/7158/files/penelib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1488/1433/files/tutaserisukogosod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3184/6296/files/97488877012.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006aab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AAB | 5160 bytes |
SHA-256: 6f1dc924b8cd0f727b8f250f6a08b04a4345eea39e9c884b0be53af3c8922640 |
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font_01_sfnt_off00007c32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C32 | 10448 bytes |
SHA-256: e1652286fe1a13d052ef73abf84e382e06cec0965a24eb8db8406b63e011a924 |
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font_02_sfnt_off00009fdd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FDD | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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