MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised websites, likely as part of a link farm designed to obscure the true malicious destination. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download a password-protected archive, a common tactic to bypass security scanning. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://irlanc.ru/uplcv?utm_term=como+localizar+un+celular+por+gps+android
- http://supair-lux.hu/ckfinder/userfiles/files/64892525274.pdf
- http://ziva-muzika.cz/files/file/nimuzef.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138e2953cab4---wikufo.pdf
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/69034193bb250ef022d4022d3cebf926/58245437119.pdf
- http://kramnyca.info/img/upload/editor/file/lazewu.pdf
- http://unitez.net/images/newtech/files/zuzevipara.pdf
- http://vers-ma.de/userfiles/file/20141378836.pdf
- http://mudrkanuch.sk/editor_uploads/system/files/97547426742.pdf
- https://xn--72ca1bzcdf9cg5df4n5a8cei.com/userfiles/files/bazuzulaxo.pdf
- https://ietc-oman.saktoon.com/userfiles/files/tezinugipawi.pdf
- http://partnercable.hu/files/29618184814.pdf
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/a6mkpuae5476itqgook587hpo7/41774550540.pdf
- http://valeneighbors.com/userimages/97121956246.pdf
- http://md-servicios.com/userfiles/file/vemazaxurisixutasetolomim.pdf
- http://bekkercoon.ru/ckfinder/userfiles/files/baxoveta.pdf
- http://www.novosib-sport.ru/ckfinder/userfiles/files/4679786443.pdf
- http://dlevitin.ru/fck_editor_files/files/wovepez.pdf
- http://thietbiotovn.com/Images_upload/files/96644692297.pdf
- https://mttrasportisrl.it/dati/upload/file/9789106243.pdf
- https://lentes123.com/aym_image/files/99706078092.pdf
- http://krr-nfe.com/suratnfe/UserFiles/File/senatifiwelijoguwikiju.pdf
- http://shengyaweb.com/uploadfile/file/2021090603041816.pdf
- http://www.lovebliss.tw/UserFiles/files/voretulu.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/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e7e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7E1 | 16792 bytes |
font_01_sfnt_off0000fff8.bin2d828f47000f47edb390fc8cca2286cd81b48984b5108c576a437e182c2b04ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFF8 | 10952 bytes |
font_02_sfnt_off0001191e.bin1c579e3df231ab37ec1478730ff5df5ccb68bc9b6118073ecf93d5451be5a7e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1191E | 19712 bytes |
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