MALICIOUS
170
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to a URL designed to appear as a Bittorrent speed increase tool. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.
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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SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINKPDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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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.cc/pify?keyword=bittorrent++speed+increase In PDF document text
- http://wipetaxas.valkyriefineart.com/uploads/1/3/2/6/132695306/2b848e8e.pdfIn PDF document text
- http://files.springwoodbaptistchurch.org/uploads/1/3/0/8/130874180/ramosu-fezitemasuzabak-wefimubanejoxo-mipeb.pdfIn PDF document text
- http://junawez.stjca.org/uploads/1/3/0/8/130874575/6074476.pdfIn PDF document text
- http://files.rangeroverclubsa.com.au/uploads/1/3/2/3/132302764/334420.pdfIn PDF document text
- http://fenoko.pestcontrolbrampton.org/uploads/1/3/0/7/130739654/tulemigarusaf.pdfIn 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/1/0432/1162/0509/files/introduction_to_business_glencoe_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3026/5511/files/gizegedij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7600/9622/files/dazedonerivorup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/vazimaxidukugizo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6335/3250/files/kugarezumaluvob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6404/9318/files/nuvajepik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9665/4489/files/bartholin_abscess_treatment.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9390/0968/files/document_to_jpg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8765/8150/files/bulojabetajejorepofif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3165/7621/files/67110224132.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8085/0335/files/supupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8412/0225/files/adobe_premiere_pro_cs4_tutorial_for_beginners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2018/0894/files/falajaxonatuvok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4797/5062/files/ios_vs_android_meme.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_off00008886.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8886 | 5084 bytes |
SHA-256: 4e6a75b53d3aaf91e2aabceb84078022cbbc9daf332611902b5c27f1f98896b1 |
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font_01_sfnt_off000099d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x99D4 | 13232 bytes |
SHA-256: 961608d9e1a4e141524ae92b76f7319d0ed8ca72955c6e1b3f96fd1fa8518f46 |
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