MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also exhibits PDF_SEO_LINK_FARM behavior by including numerous external links. The document body and heuristics suggest a lure impersonating a cloud document service like SharePoint to trick users into clicking the malicious link. The primary malicious IOC is the redirector URL.
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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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=edit+pdf+files+in+sharepoint+online In PDF document text
- http://files.copelincontract.com/uploads/1/3/1/8/131857193/6879c55ac.pdfIn PDF document text
- http://files.eagleglobal.org/uploads/1/3/1/4/131483955/difop-gokaxekogiraso-panepopasaw.pdfIn PDF document text
- http://files.tactileearth.com/uploads/1/3/0/7/130775432/wemizodewe.pdfIn PDF document text
- http://basuzogi.backwind.ca/uploads/1/3/1/0/131069839/pumak-koratawis-tilapukifufeku.pdfIn PDF document text
- http://files.visittbo.com/uploads/1/3/1/4/131453984/3289803.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
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/3ds_cia_games.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3803/1518/files/xirunomapifovofin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3197/0471/files/67642132023.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8078/3774/files/msi_970_gaming_drivers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8072/1311/files/29098664148.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0079/1191/files/bupid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0587/8167/files/sekijelabomuvedipinuzoron.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0993/1426/files/xapewedomotexison.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7099/7151/files/accounting_theory_journal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4606/7621/files/24849898561.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2865/9870/files/16140013912.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_off0000694d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x694D | 4876 bytes |
SHA-256: fcdc62b28c0a715024499937277a4a504394afd618244baae6a7e4db7fb74443 |
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font_01_sfnt_off000079c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79C8 | 11372 bytes |
SHA-256: e685572568fedfff3a741a314fb41e5b2542f998a4472063183eeef7faccee71 |
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font_02_sfnt_off0000a009.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA009 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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