MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and link farms points towards a phishing or SEO manipulation attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://oniceh.ru/uplcv?utm_term=warcraft+for+android+tablet
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161400553f24de---valuvotiwaxutebutez.pdf
- http://eventechsite.com/files/files/mumisaf.pdf
- http://vanharteyoga.nl/uploads/files/tewujukunap.pdf
- http://medigroupvn.com/upload/files/78375831884.pdf
- http://cybernet-ap.com/UserFiles/File/lokokus.pdf
- http://iiiemjobs.com/FCK_Editor_Images/files/47563972615.pdf
- https://www.willmarshelter.com/ckfinder/userfiles/files/gukipifatuluwu.pdf
- https://baglab.pl/galeria/file/retik.pdf
- https://sergiomauri.com/images/file/zezitugareku.pdf
- http://reclameindex.nl/images/uploads/57094651366.pdf
- https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/bozotadukidaret.pdf
- http://kashima.cc/userfiles/file/44842881250.pdf
- http://lionsmarsala.it/userfiles/files/luterip.pdf
- http://donkaew-furniture.com/ckfinder/userfiles/files/melixaxamupadexaweken.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16140e3d65b421---87917336688.pdf
- http://se-ty.ru/uploads/userfiles/file/98881168066.pdf
- http://www.deopendeur.org/imgUser/file/21918061555.pdf
- http://korio-olsztyn.pl/userfiles/file/56790842552.pdf
- http://chikatere.com/Upload/files/56112193090.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/fd37c1860fdf32f998e14e1bd74ce7e4/34019328879.pdf
- https://luathoanghuy.com/uploads/files/27473695677.pdf
- https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/18927444402.pdf
- https://booking-news.hkdnracing.com/webroot/editor-uploads/files/39377995786.pdf
- http://faurerom.com/userfiles/file/jinezol.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614be269e80d3---26261083629.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_off0000e605.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE605 | 16792 bytes |
font_01_sfnt_off0000fe1c.bin8b57cfa2d7304bad9729310b6330383c62234da46453090536f5dfa7ed8a17a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE1C | 10432 bytes |
font_02_sfnt_off000115e0.bin3f7026abae4602795505750dffadc61f8f93c8ba02e1462a9f90fb14999367b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115E0 | 17616 bytes |
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