MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link farm and a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for an 'English lesson plan'. The primary malicious URL, https://ttraff.ru/pify?keyword=english+lesson+plan+pdf+d.+el.+ed, is a known redirector. The file likely serves as a lure to redirect users to malicious content.
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=english+lesson+plan+pdf+d.+el.+ed In PDF document text
- http://files.darkestsidesilver.com/uploads/1/3/1/4/131437123/94b384c2e9edca4.pdfIn PDF document text
- http://files.vinnysblogbookcom.com/uploads/1/3/0/9/130969358/wekofopekej_sobamejo.pdfIn PDF document text
- http://files.blainevdg.com/uploads/1/3/1/3/131384058/xijopasiwizul.pdfIn PDF document text
- http://files.thechildprotectioncenter.org/uploads/1/3/0/7/130740490/366152.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5327/7589/files/xikiwudarokiregubom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2250/8454/files/kepisiwibutenenofemakize.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6660/4182/files/zipcode_dayton_ohio.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9597/3276/files/siveboxapavarobawuderupu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6955/5359/files/2693521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7111/1330/files/30443839118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0536/9768/files/75918874136.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1538/6774/files/77098927566.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3467/3301/files/jorebegis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1829/6232/files/tomigi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6709/7756/files/jukamaserojeladixug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7346/0641/files/lenorum.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005969.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5969 | 4904 bytes |
SHA-256: a90bef18f69c9c689e96e9b10a1cb2f6c68b236e0e23986ae298c3e117552354 |
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font_01_sfnt_off00006a0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A0D | 14004 bytes |
SHA-256: 01cee101b5886fd9845c6fe2476f5029d86d4c00c47ee6081353d81cb749fb95 |
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font_02_sfnt_off00009611.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9611 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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font_03_sfnt_off0000a412.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA412 | 2864 bytes |
SHA-256: 8421f32396998623d259c1a9d18a842f8e5fefd2effb6d80ae44cd7d1a9916a4 |
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