MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to PDF files hosted on various domains. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicates a deliberate attempt to create a link farm, likely for SEO poisoning or to host phishing content. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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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://cli-kh.com/uploads/files/202109100559007785.pdf In PDF document text
- http://maimungkorn.com/UserFiles/file/23241245968.pdfIn PDF document text
- http://luijkzonwering.nl/image/file/vakup.pdfIn PDF document text
- https://limsurempat.com/contents/files/94356263389.pdfIn PDF document text
- http://www.pataniforum.com/admin/jquery/ckfinder/userfiles/files/wimetewovi.pdfIn PDF document text
- http://terredellamagnagrecia.com/userfiles/files/61725521860.pdfIn PDF document text
- http://teamhead.net/userfiles/file/47672768363.pdfIn PDF document text
- https://alhasooncorp.com/Files/files/38811463802.pdfIn PDF document text
- http://printific.com/images/contentimages/files/92021275647.pdfIn PDF document text
- https://niagarablock.com/application/webroot/userfiles/file/mubezomikidomilibanut.pdfIn PDF document text
- http://knshzj.com/CKEdit/upload/files/19090608694.pdfIn PDF document text
- http://nousgarage.com/userfiles/file/vubixogejofupir.pdfIn PDF document text
- https://cbdc.co/uploads/ckfinder/userfiles/files/kitojawitasoj.pdfIn PDF document text
- http://starinviter.com/ckimagefiles/felakisapiperix.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139fd9a10746---lamidategikesusamutux.pdfIn PDF document text
- http://diagcorlifescience.com/attachment/file/folazumo.pdfIn PDF document text
- http://esebtekstil.com/resimler/files/9674373930.pdfIn PDF document text
- http://sanalights.com/admin/admin/uploadfiles/file/84404566565.pdfIn PDF document text
- http://istanbulballoons.com/ckfinder/userfiles/files/47714155398.pdfIn PDF document text
- http://npi-management.org/ressource/site-image/files/6694177974.pdfIn PDF document text
- http://www.americaninvest.net/upls/files/mejoxaw.pdfIn PDF document text
- http://thepokeluau.com/uploads/files/42633638855.pdfIn PDF document text
- https://turbooto.vn/upload/files/xibinosekoxa.pdfIn PDF document text
- https://thefencedocumentary.ca/adminfiles/file/28839241616.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145b61b0490a---69271501307.pdfIn PDF document text
- http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/jiroxemizizupuruvuraman.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=brufen+brenner%27s+ecological+theoryPDF link annotation
- 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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c260.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC260 | 16524 bytes |
SHA-256: fafd5db83d861c511f98332c635d9dbb9232c33144ad5a54284f2d415e130cea |
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font_01_sfnt_off0000ed04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED04 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001051b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1051B | 11056 bytes |
SHA-256: b7cac656d10811b298703ecad469e63ed78238d3ad1c06bea75cec6a7fe55316 |
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