MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious due to a critical heuristic firing for a link to known malicious redirector infrastructure. Additionally, another critical heuristic detected a large number of embedded external PDF links, characteristic of a link farm. These findings suggest the document's primary purpose is to lure users to malicious sites.
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.cc/wb?keyword=dogs%20of%20war%20adrian%20tchaikovsky%20pdf In PDF document text
- http://files.yael-levy.com/uploads/1/3/2/7/132712174/fesaduvurukun-maxarazadadex-bodalujetojuf-sakadoluvifav.pdfIn PDF document text
- http://files.paulcyon.me/uploads/1/3/1/3/131398286/vodutozikudoniredu.pdfIn PDF document text
- http://files.autumntrailsstable.com/uploads/1/3/1/6/131637239/zafewisawugem.pdfIn PDF document text
- http://files.besmirched.com/uploads/1/3/0/8/130874518/9478370.pdfIn PDF document text
- http://files.jeffersonhighwayinoklahoma.com/uploads/1/3/0/7/130776591/5086537.pdfIn PDF document text
- http://files.ananuno.net/uploads/1/3/1/4/131438501/533909.pdfIn PDF document text
- http://files.jjeffreymesserole.com/uploads/1/3/1/3/131384018/f3faf9c41e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://sixuxonudibi.files.wordpress.com/2020/06/gatatesupaguxigufa.pdfIn PDF document text
- https://rudagus.files.wordpress.com/2020/06/98056427478.pdfIn PDF document text
- https://ruzufugaf.files.wordpress.com/2020/06/kebipijax.pdfIn PDF document text
- https://zusanudez.files.wordpress.com/2020/06/63047631797.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0892/5600/files/1987695206.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8770/8825/files/25053391594.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8146/6005/files/51359713760.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7874/6261/files/29595309872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0685/3269/files/61629328097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2613/7756/files/xasoja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3998/8648/files/wapaneweta.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_off00008133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8133 | 5372 bytes |
SHA-256: 4994d17808c67620cd0da0fbf81d87f65b3f90edefe01635f43f7c78ae399629 |
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font_01_sfnt_off00009389.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9389 | 10392 bytes |
SHA-256: a8a922cb3bb175b85a51c221062ae423e73282ef573b566ea4a0152dabd6575e |
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