MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and an ML classifier flagging it as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'Ms powerpoint 2007 tutorial pdf'. The primary malicious IOC is the redirector URL, which is designed to lead users to a potentially harmful site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=ms%20powerpoint%202007%20tutorial%20pdf In PDF document text
- http://files.bravoballoon.com/uploads/1/3/0/8/130874639/xefivawi.pdfIn PDF document text
- http://files.bkyogapsychotherapy.com/uploads/1/3/2/6/132695887/5f06c04d5.pdfIn PDF document text
- http://files.irishtimber.org/uploads/1/3/1/8/131856954/9640888.pdfIn PDF document text
- http://files.perfect-stride.com/uploads/1/3/0/7/130739142/sowexo_folod.pdfIn PDF document text
- http://files.inter-nda.com/uploads/1/3/1/4/131437225/843ced6e0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://xovabek.files.wordpress.com/2020/07/xajiwotogaxidabobo.pdfIn PDF document text
- https://tabunujifafa.files.wordpress.com/2020/06/xawiziragiwumujusezoro.pdfIn PDF document text
- https://digogaba.files.wordpress.com/2020/07/4852268468.pdfIn PDF document text
- https://susikebe.files.wordpress.com/2020/07/pexererasiw.pdfIn PDF document text
- https://sulupovabas.files.wordpress.com/2020/06/vufozuwefizidozem.pdfIn PDF document text
- https://zuterejesami.files.wordpress.com/2020/06/tamivuwakerudalojufogat.pdfIn PDF document text
- https://vafixumev.files.wordpress.com/2020/06/95062365704.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0691/0876/files/kiruba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8026/9462/files/54383184249.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9672/7962/files/85615189928.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5660/4070/files/vojojajavizanobitu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0789/3919/files/nujadenudaxumilaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9456/5271/files/wonuwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0496/0676/files/61083506033.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rowogumidakedodovejizana.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_off00015804.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15804 | 5368 bytes |
SHA-256: 5827d6a3725cc4060ead6ded9dba5813b6830b811e9b7a3015fd95909cb0e56b |
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font_01_sfnt_off00016a72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16A72 | 10420 bytes |
SHA-256: 089a200ec5745690bbd1e799257700c75ffd93fd51b234d82e7d29bf17124f01 |
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