MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating it is part of an SEO link farm and uses a redirector to a malicious domain. The ML classifier strongly flags this PDF as malicious. The document body is heavily obfuscated, but the presence of embedded URLs and the 'SE_DOWNLOAD_BUTTON' heuristic suggest a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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External URI info PDF_URIPDF contains an external URL action
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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 http://files.australiandisabilitysport.com.au/uploads/1/3/0/8/130874691/sefuv.pdf In PDF document text
- http://files.musee-militaire.com/uploads/1/3/1/0/131070317/551221.pdfIn PDF document text
- http://files.tomorrowstechnologytoday.org/uploads/1/3/0/7/130775565/fididiwegaf-xadekinari.pdfIn PDF document text
- https://ttraff.com/wb?keyword=hematoxylin%20and%20eosin%20PDF link annotation
- https://ttraff.com/wb?keyword=hematoxylin%20and%20eosin%20(h&eIn 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/1/0432/3105/1931/files/49676143586.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5698/8317/files/65557249536.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0334/7097/files/kilus.pdfIn PDF document text
- https://remumalu.files.wordpress.com/2020/06/zatulefogemejoxulu.pdfIn PDF document text
- https://kemofef.files.wordpress.com/2020/06/tuvumalukoxar.pdfIn PDF document text
- https://limalido.files.wordpress.com/2020/07/bakopomaralirin.pdfIn PDF document text
- https://dejatixid.files.wordpress.com/2020/07/jitaxokorosatoz.pdfIn PDF document text
- https://zegopaduxuf347937540.files.wordpress.com/2020/07/daziburunemowikagopupifom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1379/9066/files/98364429896.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6519/6197/files/51840140609.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2960/2205/files/tibid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4290/6007/files/pagaku.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zebegevuda.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6065/8330/files/34734303619.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/xumesadekas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8000/0423/files/85826377325.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_off0000a21e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA21E | 4964 bytes |
SHA-256: ab8414b7018ac91fc942e048ba3c8ad2f84aab3e3260dfff2f4ba090cd612f3a |
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font_01_sfnt_off0000b2e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2E1 | 10444 bytes |
SHA-256: 3cf2cb6ec96dea7d21c91f27dceaea6e5b5f84b599816d0d337302c59bbc5cdf |
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