MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or redirection scheme. One critical heuristic identified a link to a known malicious redirector, and another heuristic flagged the document as a callback phishing lure, indicating a potential scam or phishing attempt. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector.
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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.link/wix?keyword=ninebot+one+e%252B+specs In PDF document text
- http://files.tremptrip.com/uploads/1/3/1/8/131871704/juxatilet-gawap.pdfIn PDF document text
- http://wazaxa.visionlighting-inc.com/uploads/1/3/1/1/131164250/wisokogufipaxod_mupukod_niposuwer.pdfIn PDF document text
- http://rekov.icpba.org/uploads/1/3/0/7/130776023/6963938.pdfIn PDF document text
- http://files.thechurchofthelivinggod.com/uploads/1/3/1/3/131379223/1937077.pdfIn PDF document text
- http://files.beaconbeerco.com/uploads/1/3/1/6/131606393/a9ebc51937.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/1/0431/7003/7924/files/calculus_of_variations_with_applications_ewing.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8463/5544/files/lepevisokubesegibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3593/5388/files/ford_industrial_engines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4645/1862/files/jixomosuvugusazesuzoziti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0481/6181/6727/files/pigodatewekivedije.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7954/1671/files/babuli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0613/0337/files/penasedezom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6982/3390/files/the_bourne_supremacy_soundtrack.pdfIn PDF document text
- https://ee0fb703-1fe2-4174-bed7-e20b3b2fa5d3.filesusr.com/ugd/9bd82e_a4f1f036da8b4fe490a1f6e118c3c38e.pdf?index=trueIn PDF document text
- https://7a2fd1a9-a9b6-4093-8382-7433d048a89c.filesusr.com/ugd/957c7b_418e629eb5ac44d3bdcb61dcad22a897.pdf?index=trueIn PDF document text
- https://46b2cda0-f2e2-4efe-a5e5-4cdb7bb39096.filesusr.com/ugd/4a2613_915934d107224c33b87b4f29431b7786.pdf?index=trueIn PDF document text
- https://6b805bbb-7f4f-42a2-a915-397dafa86267.filesusr.com/ugd/4826f5_c67a69b2ccb144adbd6829b9e8fd9eb2.pdf?index=trueIn PDF document text
- https://28f71062-cb96-4dce-ac74-49b2c061d7c2.filesusr.com/ugd/d1fcfc_572a751fbf834a6c9e7b20d7177cfdce.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000835f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x835F | 4700 bytes |
SHA-256: 903a7ac20ee9c5e583455ab6f3dcf5027a67c1d6d2367bc385d92d094f532d6e |
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font_01_sfnt_off00009377.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9377 | 14460 bytes |
SHA-256: 65db82e183047189b45b5c9202162a5a9c4785698cb6e5ba032157f38ba51cdf |
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