MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm for SEO manipulation or to obscure malicious redirects. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=tao+te+ching+pdf'. The document body, though heavily obfuscated, contains text related to 'Tao te ching pdf' and mentions the authoring application, likely a lure to disguise the malicious intent of redirecting users to potentially harmful 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.ru/pify?keyword=tao+te+ching+pdf In PDF document text
- http://files.viennaartstudio.com/uploads/1/3/1/4/131437982/5885064.pdfIn PDF document text
- http://files.bonuselkantler.com/uploads/1/3/0/9/130969740/musuxesu-tajirilirexom-wifulobubi-reratesorutoz.pdfIn PDF document text
- http://files.karensteward.com/uploads/1/3/1/4/131408415/tulurobo-zululifum.pdfIn PDF document text
- http://files.movingwiththemilitary.tv/uploads/1/3/1/0/131070872/6792719.pdfIn PDF document text
- http://gevunug.west-pro-installations.com/uploads/1/3/1/0/131070420/vadaxukibolejebud.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/1/0437/7201/8845/files/nilaxuxeloxipilina.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0055/1830/files/nuxuzubepokizomowemutejob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8784/7843/files/ragijurevibobinejodos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6827/7404/files/wolugazuwimazod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5525/9560/files/vemukotononimavig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2412/0997/files/zuwebigatuwiwumiminejiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4681/4374/files/gizakelawikexem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6051/7269/files/4680849024.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0305/1171/files/28537412818.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1070/3010/files/fire_emoji_copy_and_paste.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7396/1110/files/78751376563.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/likamabununanezowarijutiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8987/0491/files/nodepewomelazonazukurufe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8132/5987/files/netekagore.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c614.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC614 | 6628 bytes |
SHA-256: 5f0e64894c7bfedf325685a006aa080dade58c0fe8f12365dec8e3e58815c640 |
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font_01_sfnt_off0000dc2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC2C | 5060 bytes |
SHA-256: 4b647f24bbe542fc07dc78d87dfae4c3c0f5eca44f30bcb131a8b12dadeabe1b |
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font_02_sfnt_off0000ed69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED69 | 15584 bytes |
SHA-256: 8d7b64888fda7035dd681dab2aa2151564d68daea040c839bdb0af188d1b3c49 |
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