MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1204.002 Malicious Link
The PDF contains embedded links and a document body that attempts to trick the user into downloading a 'keygen' by presenting a malicious URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate the presence of malicious redirectors and a link farm, further supported by the ML_NYX_PDF_MALICIOUS classification. The document also contains an instruction to disable security software, which is a high-risk indicator.
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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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=adobe+lightroom+keygen In PDF document text
- http://files.airedales4u.com/uploads/1/3/1/3/131398591/kuwigidotiva.pdfIn PDF document text
- http://files.delphieng.com/uploads/1/3/2/6/132695354/4413260.pdfIn PDF document text
- http://files.stclementscambridge.org/uploads/1/3/0/7/130775350/fikixexutadi.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/1/0440/6483/3686/files/84607836914.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7028/3173/files/planar_handbook_3._5_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3848/1320/files/64716503319.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8400/2981/files/xulenufafeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9603/8812/files/oxford_ib_chemistry_study_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37872338034.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8870/6717/files/rupaxubalipuvakomekefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7259/3820/files/53941294720.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4447/0945/files/71855971397.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0700/7127/files/26369226348.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5851/1510/files/29723260279.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 |
|---|---|---|---|
stream_006_off0000b334.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xB334 | 28044 bytes |
SHA-256: bbbe7451c74085fa3cf13ddc88f234f245c38e94ad623cf4ccbd55abbe13b7c3 |
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font_00_sfnt_off00007ade.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7ADE | 4932 bytes |
SHA-256: b6a91664c5e3573d61c7a69d622b8b4111bfa653b015f2704eae3e398475ea51 |
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font_01_sfnt_off00008b7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B7F | 12384 bytes |
SHA-256: 6d131e89cc96c58eb12f812118364bf5e429cabcaacb63ff586a3985161bf50c |
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font_03_sfnt_off0000e4dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4DC | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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