MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of JavaScript points to an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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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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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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://catamma.ru/uplcv?utm_term=sd+karttan+rom+y%C3%BCkleme
- http://321eastern-thailand.com/userfiles/files/69332802975.pdf
- http://hiace-yoshikawa.com/js/upload/files/panalunuvunezaw.pdf
- http://newtarrytowndeli.com/uploads/files/faxixawegog.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/cbe35ff7d23e8cdad7b82e12aa54799e/bivilon.pdf
- http://s4l.vn/storage/ckfinder/files/kilofize.pdf
- http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/tomifom.pdf
- http://soloparamideco.com/js/new/fckeditor/userfiles/file/81798081161.pdf
- http://inruho.ru/ckfinder/userfiles/files/31220158042.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133ffa59a949---20681361078.pdf
- http://doudou.tw/userfiles/files/23080881218.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139cee1919eb---varufupiso.pdf
- http://sgrappresentanze.eu/userfiles/files/64989158573.pdf
- https://bnbcostaverde.it/userfiles/file/1372378422.pdf
- http://sushinamu.com/uploads/files/kexev.pdf
- https://taumed.kz/upload/2021/09files/210912232852424542931el.pdf
- https://kawanmto.info/contents/files/39057179332.pdf
- http://sieuthicayxanh.vn/webroot/img/files/86098892312.pdf
- http://cc-loges.com/uploads/file/dibegu.pdf
- https://corpusbg.com/files/fck/file/78201633182.pdf
- http://kunmobile.vn/files/uploaded/20210906/file/14716547692.pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/16226677864.pdf
- https://konteshamamotu.com/userfiles/file/76260616907.pdf
- http://circuitvietnamcambodge.com/hinhanh/file/63220333334.pdf
- https://acavacecio.it/userfiles/files/46319302167.pdf
- http://xn--90aoa5aj.xn--p1ai/ckfinder/userfiles/files/39123853422.pdf
- http://wisdomtours.net/upload/file/tupitimokexewaripibixix.pdf
- http://nakamurasangyou.jp/app/webroot/uploads/files/35808356134.pdf
- https://olympicwroclaw.pl/zdjecia/fck/file/lenokut.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_off0000edbb.bind559bb1a72af2f218736f6f0bef9cbf3efc785c473883b044a127f4a070b76a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDBB | 10620 bytes |
font_01_sfnt_off00010603.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10603 | 16792 bytes |
font_02_sfnt_off00011e15.bin1afef81d498dae754213235197f9176d3efcd0a4200428b871577bf53bce240b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E15 | 19220 bytes |
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