MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating it's a phishing or trojan delivery mechanism. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the PDF_SEO_DISPOSABLE_LINK_FARM rule further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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 http://etnorom.hu/pictures/rumuwuvudizijebagositopal.pdf
- https://anne-berger.de/sites/anne-berger.de/files/fkcfile/polamiwusujemob.pdf
- http://lmnn.ru/userfiles/file/42418990909.pdf
- http://daindnc.com/fckeditor/userfiles/file/6120870097.pdf
- http://davidhammerstein.org/ckfinder/userfiles/files/dizajafojitaxakeli.pdf
- http://gryfarmerskie.pl/pliki_wyswig/files/73246373668.pdf
- http://unixsensor.com/uploads/files/202109080235477447.pdf
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/tumibefobofesawowusa.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/b26e71cadbe5ed11782f8924245c3608/sowetafodoradotetomatuluz.pdf
- https://rijst.nu/userfiles/file/noruxikanitukege.pdf
- http://tjsyjdq.com/v15/Upload/file/20219111759308959.pdf
- http://atdawnwelift.com/userfiles/file/23976147773.pdf
- https://pmms-online.com/assets/file/zisabejomoxi.pdf
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/a9d545219623c86ea20435a7f51e4d70/74279226599.pdf
- https://quimicasorocolor.com.ve/ckfinder/userfiles/files/sakavimujasavetete.pdf
- http://www.greenfield-sustainability.com/images/files/51397173101.pdf
- https://www.ijmsir.com/ckfinder/userfiles/files/ninigugurisobiwetosalex.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/161307bb038d32---3956008971.pdf
- http://psychanalyste-gard.fr/ckfinder/userfiles/files/fukowizukos.pdf
- http://joomlacode.org/fckeditor/editor/filemanager/img.php?file=file/risid.pdf
- https://takarasushimn.com/userfiles/files/bejuzemudazim.pdf
- https://bloomeng.com/uploads/fujunajotilitajemeki.pdf
- http://splhardware.com/UploadFile/file/2021090708305273499.pdf
- http://fnathservices.com/upload/file/2947667890.pdf
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161401390d683f---25288646650.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=mlbb+map+hack+2020
- 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_off0000e3e4.binc5dd29beb56ba5000c4fa1582d27c44c3810b459dc9439deaa27c6fbe352f45c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E4 | 10292 bytes |
font_01_sfnt_off0000fadd.bin6b786d4cd16fac531069db8c0c3109f6c0448fc1d7af71db494432099b02f05c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFADD | 17436 bytes |
font_02_sfnt_off0001279d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1279D | 16792 bytes |
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