MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link to known malicious infrastructure. Additionally, it contains a PDF link farm, with the primary URL pointing to a redirector. The document body, though heavily obfuscated, suggests a lure related to a book summary. No scripts were extracted, but the presence of multiple external links, including a malicious redirector, indicates a likely phishing or malware distribution attempt.
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=pdf%20summary%20of%20paradise%20lost%20book%201 In PDF document text
- http://files.shannonruska.com/uploads/1/3/0/8/130814127/07768eb0d8.pdfIn PDF document text
- http://files.communityland.org/uploads/1/3/1/4/131437194/a7b2ef7.pdfIn PDF document text
- http://files.newaplusenvironmentalrestoration.com/uploads/1/3/0/7/130739483/5057341.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/1/0428/0591/9903/files/65476211656.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7941/7504/files/mokexezurunejurimejabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kivamusefelozadadazub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0582/9532/files/kunekijeripudabupudapofob.pdfIn PDF document text
- https://ladareguk.files.wordpress.com/2020/07/33171551787.pdfIn PDF document text
- https://zavununis.files.wordpress.com/2020/06/19459657400.pdfIn PDF document text
- https://vemupuki.files.wordpress.com/2020/07/42230641041.pdfIn PDF document text
- https://sifuloli.files.wordpress.com/2020/07/6973143204.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2068/1369/files/75561443730.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7165/8392/files/lozodamuvosivupojiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/mikinorewore.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17844710077.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1548/7135/files/13327770316.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1868/1496/files/vudapimesobavad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1733/1100/files/remigevelepiduxotanemoku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9969/2958/files/sufafazaka.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_off0000785e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x785E | 5324 bytes |
SHA-256: 435137f3ee1f0fbff66aa61a3f844995f04d9554f2739f7f1f73af3b51c02cd7 |
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font_01_sfnt_off00008a84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A84 | 9852 bytes |
SHA-256: bc4fea7792f8100aca7ef71f4d9c2c878ebea257660d5ab6f4c01f835578002a |
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