MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Numerous heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are likely used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.6197
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://synerhu.ru/uplcv?utm_term=video+background+remover+apk+download PDF link annotation
- http://svb-volleyball.de/userfiles/file/ganisadosagagebi.pdfIn PDF document text
- http://ekonopuntos.com/campannas/file/genepupew.pdfIn PDF document text
- https://bandotrading.it/uploads/file/wesodozudagej.pdfIn PDF document text
- http://findacommodity.com/upload/file/50187030084.pdfIn PDF document text
- https://retrofitoman.com/ckfinder/userfiles/files/58400508498.pdfIn PDF document text
- http://www.almansori-ye.com/almansorifiles/files/57834764970.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16139db2643eaf---koxejo.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161400ff904934---wasoz.pdfIn PDF document text
- https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/xenifipojeduteletiwe.pdfIn PDF document text
- http://tongchangkj.com/uploadfile/file///2021091715550141.pdfIn PDF document text
- https://pcparts.fr/ckfinder/userfiles/files/12138306821.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16147dfd86bd09---31853798341.pdfIn PDF document text
- http://red-persimmons.com/upfiles/editor/files/27091476531.pdfIn PDF document text
- http://henanshuangxin.com/d/files/pufilidudanedexexekate.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161467b68151cb---lixanikeku.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/vusuki.pdfIn PDF document text
- https://www.gullyracing.it/admin/ckfinder/userfiles/files/7614559362.pdfIn PDF document text
- https://efnnma.org/files/file/69465557366.pdfIn PDF document text
- http://isitekmuhendislik.com/userfiles/file/bujefitukavowekoken.pdfIn PDF document text
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/0c89398623d77d93b40bc4c4d99471fe/11965492002.pdfIn PDF document text
- http://milkyway-vn.com/upload/files/pogetelagazejorawedutekap.pdfIn PDF document text
- http://noithattamphuong.com/upload/files/ladaxisekufufofujapuzipak.pdfIn PDF document text
- http://orenprom.com/img/account/file/bukibijonemumagawiwitu.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/vmnfv6vf0e2jebthsv3pvvl9le/9881364674.pdfIn 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_off0000dd20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD20 | 18180 bytes |
SHA-256: 57a7470b5ffa0c79c2f3965cfc699f78160db5288ea1d16ed88b6b12cc4d01fb |
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font_01_sfnt_off00010c51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12468 | 11044 bytes |
SHA-256: 01f45a653fb0708bba92ee60d9703055c55a29f4d7d4578c4181568e03380ba3 |
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