MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains numerous embedded links, including a redirector to 'ttraff.com' and a large number of links to PDF files hosted on various domains, indicative of a link farm. The document body, though partially corrupted, suggests a lure related to 'Present continuous exercises worksheet'. The ML classifier strongly flagged this PDF as malicious, and the presence of a malicious redirector link confirms its intent to lead users to harmful content. No scripts were extracted from this sample.
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/wb?keyword=present%20continuous%20exercises%20worksheet In PDF document text
- http://files.wellspringscelbridge.com/uploads/1/3/1/6/131636995/4450282.pdfIn PDF document text
- http://files.thegirlsfromguantanamo.com/uploads/1/3/2/6/132681938/2217839fd6588e.pdfIn PDF document text
- http://files.knightsknews.com/uploads/1/3/0/9/130969987/nezazemesozafejas.pdfIn PDF document text
- http://files.pennsylvaniaeitc.org/uploads/1/3/0/9/130969085/272e8d61372.pdfIn PDF document text
- http://files.peterarmstrong225.net/uploads/1/3/2/8/132815342/dae4c49fd7.pdfIn PDF document text
- http://files.biophysical-ecology.com/uploads/1/3/1/4/131406356/xivut_girusidusowele_finusagon.pdfIn PDF document text
- http://files.travistagpta.org/uploads/1/3/2/6/132696063/159d094eebc4b5.pdfIn PDF document text
- http://files.autumnskinner.com/uploads/1/3/1/4/131453284/9274844.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xaxuxite.files.wordpress.com/2020/06/72685303088.pdfIn PDF document text
- https://sobapawesug.files.wordpress.com/2020/07/25828720684.pdfIn PDF document text
- https://xibupaxip.files.wordpress.com/2020/07/15124027214.pdfIn PDF document text
- https://jokurana.files.wordpress.com/2020/06/bodotarenubokozeferuti.pdfIn PDF document text
- https://sazubafuzute.files.wordpress.com/2020/07/lujemaxeteluz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wudusojixidotivage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5555796470.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sotuxinonuwirumedubisaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72593533024.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.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_off00006814.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6814 | 4752 bytes |
SHA-256: 48ad87a3e1492bef56bf0a71d9c3050e222843aceb87762e2873cc6e828aa68b |
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font_01_sfnt_off00007843.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7843 | 10224 bytes |
SHA-256: 0bd9d529ead054487d5a4fc1de94e271e848c9581fd124bc355bddd60a680fa2 |
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