MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to 'general systems theory pdf'. The presence of many external links suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.
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/wb?keyword=the%20history%20and%20status%20of%20general%20systems%20theory%20pdf In PDF document text
- http://files.gamblingproblemhelp.com/uploads/1/3/1/4/131453615/9819880.pdfIn PDF document text
- http://files.catholicapostolatecenter.org/uploads/1/3/1/8/131872017/vazika.pdfIn PDF document text
- http://files.nailahsshea.com/uploads/1/3/1/3/131379951/vuvilenepebebepiw.pdfIn PDF document text
- http://files.dancetodaybiz.com/uploads/1/3/0/8/130873718/7757570.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/1/0433/0687/7080/files/50306279194.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0100/4707/files/2716066315.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4533/9814/files/fesoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8523/3302/files/zejonewu.pdfIn PDF document text
- https://tajewifaxeri.files.wordpress.com/2020/07/daniwuwozerazupixubo.pdfIn PDF document text
- https://mikupekuforu902814454.files.wordpress.com/2020/06/lowosopa.pdfIn PDF document text
- https://dupowoso.files.wordpress.com/2020/06/pabumeridusofokupotu.pdfIn PDF document text
- https://wivatog908722910.files.wordpress.com/2020/06/furodugikakalisejufojaji.pdfIn PDF document text
- https://potataz.files.wordpress.com/2020/07/82847794083.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vazakiliduvapi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4865/7318/files/9429919873.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7337/1288/files/fogavubejuwotebuvek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaxesajikibulunetegidu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8402/1921/files/vegokeligozapulagakugax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0168/3865/files/datitupigofobuputaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4993/3208/files/zogejamen.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_off0000dfed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFED | 5388 bytes |
SHA-256: 1e084f7e195cb2dd3458fd82cde736eeeb65589155ef06648e820739d1b8015b |
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font_01_sfnt_off0000f21b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF21B | 10396 bytes |
SHA-256: bb326ba19cced2f1b1bc22f2268ac9265c9acd2231babd8194fb99239eb72a7e |
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