MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The heuristic 'PDF_SEO_LINK_FARM' indicates a link farm designed to lure users, and 'SE_PASSWORD_ARCHIVE_LURE' suggests the document is a pretext for obtaining a password for a separate archive. The ML classifier strongly supports the malicious verdict.
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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.ru/pify?keyword=ajahn+chah+biography+pdf In PDF document text
- http://gojijile.europeanmasterswl.com/uploads/1/3/1/6/131607163/1022284.pdfIn PDF document text
- http://files.wellswoodcivic.com/uploads/1/3/0/7/130776268/9676318.pdfIn PDF document text
- http://files.boulderhomezone.com/uploads/1/3/0/7/130775027/ccdec79fea8.pdfIn PDF document text
- http://files.addingtonforge.com/uploads/1/3/1/8/131871627/pafezaxubepur-gabaxa.pdfIn PDF document text
- http://files.carawaydeafyouth.com/uploads/1/3/1/1/131163846/rizafobot-jotekaladanegel.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2862/8135/files/dobezesudiwagapezeno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6827/6384/files/how_to_get_tensorflow_version.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2970/6390/files/ankylosing_spondylitis_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8524/2276/files/fefanosidafor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/12067793884.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6345/1560/files/53937975752.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9818/3582/files/38349894201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8125/3535/files/48456180421.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1019/5605/files/43027083611.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4737/0402/files/39115736322.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
- http://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000067b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x67B6 | 5512 bytes |
SHA-256: 4d1637cbcada63035cd5b250e9a67d83a7d8e947a5f041810c2a0efc70d3f7cd |
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font_01_sfnt_off00007a72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A72 | 8624 bytes |
SHA-256: c1c02f8dfbeb34803941823f2d73cc7fe4b4b608a0181b6f1ced2515782061a0 |
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font_02_sfnt_off00009231.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9231 | 15092 bytes |
SHA-256: 74130669772229329faa78b6749c2d395af9f6dfc2496273f7ce25f11d753e3b |
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