MALICIOUS
224
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary malicious URL identified is https://ttraff.cc/wb?keyword=advances%20in%20modeling%20agricultural%20systems%20pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to academic papers and the tool used to generate the PDF, suggesting a lure to disguise the malicious links. The ML classifier strongly indicates maliciousness.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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/wb?keyword=advances%20in%20modeling%20agricultural%20systems%20pdf In PDF document text
- http://files.pasifikabusinessnetwork.com/uploads/1/3/1/4/131454581/munapaja.pdfIn PDF document text
- http://files.parkhillbowlingclub.com/uploads/1/3/2/8/132815154/4047543.pdfIn PDF document text
- http://files.spamitzvah.com/uploads/1/3/1/3/131384789/2268709.pdfIn PDF document text
- http://files.amandamarkle.com/uploads/1/3/1/4/131437778/zagipugebeguvokaxo.pdfIn PDF document text
- http://files.2878music.com/uploads/1/3/1/1/131164252/90068c65dd1d4f2.pdfIn PDF document text
- http://files.godswaytshirts.com/uploads/1/3/2/3/132302815/7c24d7928c8eda5.pdfIn PDF document text
- http://files.commentingtogether.com/uploads/1/3/1/8/131871778/duzijonuv.pdfIn PDF document text
- http://files.afmsupplements.com/uploads/1/3/2/3/132302815/972851.pdfIn PDF document text
- http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdfIn PDF document text
- http://files.clevelandcountyhistoricalsociety.com/uploads/1/3/2/8/132815752/sobuju-rerilujefemimed-nejasakegefub.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://mawumobu.files.wordpress.com/2020/07/40953612340.pdfIn PDF document text
- https://gejovofusasa.files.wordpress.com/2020/07/venewamatimuz.pdfIn PDF document text
- https://fatiwasorug.files.wordpress.com/2020/06/74137837587.pdfIn PDF document text
- https://newomigefixe.files.wordpress.com/2020/06/poduzuzeruvofun.pdfIn PDF document text
- https://bijufexabez.files.wordpress.com/2020/06/nukemebebamuburedapa.pdfIn PDF document text
- https://zalusuzet.files.wordpress.com/2020/06/numevejinog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.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_off00009e25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E25 | 5508 bytes |
SHA-256: 5b32c65ea5bc76529a9e62da64bf018a71d3fc4f9df5c9ddb9f653464e3311c3 |
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font_01_sfnt_off0000b0d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0D4 | 10468 bytes |
SHA-256: 3bc9f91c6dd35dc348e67cfc318916a7a4f1a8e612ca3863ab5786664767d69c |
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