MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, indicating a link farm designed to redirect users to malicious content. ClamAV and ML classifiers strongly indicate malicious intent, likely for phishing or malware distribution. The presence of multiple external URIs and a link farm heuristic confirms the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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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://laborke.ru/uplcv?utm_term=add+app+android+auto PDF link annotation
- http://k1a.ru/images/files/file/migarivexetivume.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/bepemotezuda.pdfIn PDF document text
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f47588cea9---pusuferakuzukasen.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f24dc4a759---81581668485.pdfIn PDF document text
- http://wang023spa.com/userfiles/202109file/2021092418072070554.pdfIn PDF document text
- http://vidiniaibreketai.lt/userfiles/file/vusovenuv.pdfIn PDF document text
- https://dongcohonda.com/userfiles/file/metagibesiboxi.pdfIn PDF document text
- https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/7204609524.pdfIn PDF document text
- http://eubeer.vn/uploads/files/70214984141.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/9468691092.pdfIn PDF document text
- http://chinatriage.com/ckfinder/userfiles/files/wusaxosozolu.pdfIn PDF document text
- http://damosushipleasanthill.com/uploads/files/19948582796.pdfIn PDF document text
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/vowosinuwez.pdfIn PDF document text
- http://i-p-p-c.com/ckfinder/userfiles/files/14788604506.pdfIn PDF document text
- http://odpadykj.cz/UserFiles/File/24415583557.pdfIn PDF document text
- http://alde-pace.org/ckfinder/userfiles/files/situjif.pdfIn PDF document text
- http://www.buildonhope.org/file/26621868315.pdfIn PDF document text
- https://edouardweil.com/userfiles/file/doxawebixawix.pdfIn PDF document text
- https://mkart.it/uploads/file/52940200600.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/vlvej7faucphovj85ut4n2qpu1/84765484266.pdfIn PDF document text
- http://goksirlambinowice.pl/img/upload/files/kikuwe.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/84ui44amuem9iodtq9ddko2tl6/6440867255.pdfIn PDF document text
- https://larsonsvanservice.com/nbloom/fckuploads/file/28690940183.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://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_off0000b1bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1BC | 10120 bytes |
SHA-256: 7a5474a0413faaa642420cf40288803a2e33a2eca09bf14daf78e7e525abf658 |
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font_01_sfnt_off0000c85f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC85F | 15216 bytes |
SHA-256: 18c59143eb0f75e3f49e891b7b3e898e0899152c37f7c37b3aa311a2dae999cc |
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font_02_sfnt_off0000ee6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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