MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to external resources, a technique often used for SEO poisoning or redirecting users to malicious sites. One critical heuristic specifically flagged a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to be related to search terms, reinforcing the lure. The primary malicious IOC is the redirector URL.
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=valmiki%20ramayana%20bala%20kanda%20in%20sanskrit%20pdf In PDF document text
- http://files.pantanobaptistchurch.org/uploads/1/3/1/3/131383977/depedeleduzogerol.pdfIn PDF document text
- http://files.lauramartier.com/uploads/1/3/1/4/131437504/6130854.pdfIn PDF document text
- http://files.escaypeent.com/uploads/1/3/0/7/130776142/de1ebd8b1032033.pdfIn PDF document text
- http://files.crps247.com/uploads/1/3/0/7/130776338/jowonevogenexu-vexanib.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/1/0433/3276/3801/files/64628168965.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1175/1579/files/46318004446.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9014/0581/files/26317996382.pdfIn PDF document text
- https://zojozug.files.wordpress.com/2020/07/tekabusi.pdfIn PDF document text
- https://kanijumedox.files.wordpress.com/2020/06/18466348692.pdfIn PDF document text
- https://giduwifun.files.wordpress.com/2020/06/zujajewugowoginaf.pdfIn PDF document text
- https://vosutafoku.files.wordpress.com/2020/07/rekagogutimogigadituzaka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0655/6320/files/makolufut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5046/6464/files/pegukeref.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4102/1349/files/binemubabuzagidinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1792/7837/files/pasitod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1751/8751/files/77773014309.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5940/4197/files/mabamebudofurasu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2259/7800/files/tesiwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1728/0408/files/59000467812.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8089/9989/files/2018727768.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nedodakamilutejevojive.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_off00016277.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16277 | 5016 bytes |
SHA-256: bca79205abbd2030149cbccc5d4df523a952259ffaa8dd43bc9fbf502e1d8434 |
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font_01_sfnt_off0001735c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1735C | 12048 bytes |
SHA-256: 25e847e10db0314828652c6990c42badea017e38e7844fc4c8c4c342a24c6a0b |
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