MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many of which point to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a phishing lure related to 'Alcatraz prison guard uniform'. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute 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=alcatraz+prison+guard+uniform In PDF document text
- http://misujo.prolyticsconsulting.com/uploads/1/3/0/7/130740510/ee30ef0eb57.pdfIn PDF document text
- http://files.saskatoonnutanalions.com/uploads/1/3/0/7/130739146/4554800.pdfIn PDF document text
- http://files.happycentric.com/uploads/1/3/1/6/131637402/futokiwubijovax.pdfIn PDF document text
- http://files.soarisemusic.com/uploads/1/3/1/6/131637271/padesa-zajufewun.pdfIn PDF document text
- http://files.sarahtorti.com/uploads/1/3/0/9/130969368/newabazu.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/1/0430/3595/1257/files/pudonebiseviwegi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5664/4774/files/rugemewubukojepozado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6531/9324/files/vogurejajej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7328/2983/files/sojajob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9733/3664/files/mirijixanata.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9128/7452/files/5141166788.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3485/3021/files/31356557452.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4141/5580/files/bapozupavusa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7714/8571/files/suffix_worksheets_middle_school.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6587/6379/files/facebook_bug_report_email.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8901/6472/files/cambridge_english_advanced_trainer_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9472/1187/files/90393136569.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013544.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13544 | 5512 bytes |
SHA-256: aa818078653919720ecc6dce036aa0ba0502764cf3cff5809eff89d9a2fea3c4 |
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font_01_sfnt_off000147ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147EC | 11940 bytes |
SHA-256: 33d339b45ad11398a4dd9ae4048004aa9d54a26951ce34a9b20f756b79ee8dd8 |
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font_02_sfnt_off00016fe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16FE7 | 16540 bytes |
SHA-256: 63fd864e8cd42e7ffddbf1d1e0da1a22675de6d8121ceb8afe00075fec24c612 |
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