MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was identified as a fake download lure using SEO poisoning techniques. It presents itself as a user manual but contains links to external URLs, such as http://uncpbisdegree.com/download3.php?q=siemens-gigaset-4170-isdn-user-manual.pdf, which likely serve as a gateway to distribute malware. The ML classifier also flagged this PDF as malicious with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9677
Heuristics 4
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Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOADThe ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
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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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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://uncpbisdegree.com/download3.php?q=siemens-gigaset-4170-isdn-user-manual.pdf
- http://uncpbisdegree.com/download4.php?q=siemens-gigaset-4170-isdn-user-manual.pdf
- https://www.transistornet.de/
- http://uncpbisdegree.com/1/star-wars-the-corellian-trilogy-showdown-at-centerpoint-book-3.pdf
- http://uncpbisdegree.com/1/study-guide-algebra-structure-and-method-book-1-answers.pdf
- http://riverside-resort.net/1/white-blood-cell-structure-diagram.pdf
- http://riverside-resort.net/1/virginia-oncology-associates.pdf
- http://riverside-resort.net/1/unknown-comic-book-facts.pdf
- http://uncpbisdegree.com/1/suzuki-sj-400.pdf
- http://uncpbisdegree.com/1/the-blue-star-a-novel-reprint-edition.pdf
- http://uncpbisdegree.com/1/small-engine-workbook-answer-key.pdf
- http://riverside-resort.net/1/wedding-cards-design-online-free.pdf
- http://uncpbisdegree.com/1/the-discovery-of-longitude.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://www.manualslib.com/manual/651637/Siemens-Gigaset-Sx100-Isdn.html
- https://www.manualslib.com/brand/siemens/telephone-accessories.html
- https://www.manualslib.com/products/Siemens-Gigaset-Sx100-Isdn-3197026.html
- http://www.microsofttranslator.com/bv.aspx?ref=SERP&br=ro&mkt=en-US&dl=en&lp=DE_EN&a=https%3a%2f%2fwww.transistornet.de%2f
- http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409
- http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409
- https://go.microsoft.com/fwlink/?linkid=868922
- http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409
- http://go.microsoft.com/fwlink/?LinkID=617297
- https://fedoraproject.org/wiki/Licensing/LiberationFontLicense
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000035d7.bin0adb32ba07a1b8ecc6cd45c7abaf7c485943881f1d906d2f186d94282f0bf475 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x35D7 | 10256 bytes |
font_01_sfnt_off00005675.binfc65b333d9d494039c596ae51379383d715db56bba6540f5d48895474051c201 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5675 | 7540 bytes |
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