MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a primary malicious redirector URL. The document body text, though partially corrupted, includes the search term 'biochemistry book pdf by satyanarayana' and the malicious URL, indicating a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.com/pify?keyword=biochemistry+book+pdf+by+satyanarayana
- http://files.peace-love-cupcakes.org/uploads/1/3/1/4/131438211/lewonofi.pdf
- http://files.mobilephlebotomynorthcarolina.com/uploads/1/3/0/9/130969623/744604.pdf
- http://files.zoelewisphotography.com/uploads/1/3/0/8/130814758/baxaserana.pdf
- http://files.wasatchguitar.com/uploads/1/3/0/7/130776046/jikadetoniwa.pdf
- https://cdn.shopify.com/s/files/1/0434/8493/8390/files/reliance_balance_sheet_2020.pdf
- https://cdn.shopify.com/s/files/1/0434/8497/1173/files/39570545781.pdf
- https://cdn.shopify.com/s/files/1/0428/7404/4579/files/13660431440.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdf
- https://cdn.shopify.com/s/files/1/0430/0118/4417/files/jidifumukaxivojevid.pdf
- https://cdn.shopify.com/s/files/1/0436/1024/3229/files/sibofakakamozakan.pdf
- https://cdn.shopify.com/s/files/1/0434/2788/9302/files/13755672411.pdf
- https://cdn.shopify.com/s/files/1/0429/8804/4442/files/19910539768.pdf
- https://cdn.shopify.com/s/files/1/0429/1048/2588/files/turigirunanon.pdf
- https://cdn.shopify.com/s/files/1/0430/3526/3138/files/53148004507.pdf
- https://cdn.shopify.com/s/files/1/0429/2775/1321/files/jemarofujodavidajukukati.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000051a1.bin186f3faf4b41695b3f437b9fc91101860f83ce512958d21aa08bdbf1d0ca1dab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x51A1 | 5720 bytes |
font_01_sfnt_off000064ef.bin1d12fae502786f38a5620947d622beb245b7ca93611b42ac4a8fa7419b96ac16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x64EF | 10488 bytes |
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