MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to websites that appear to be compromised WordPress installations, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV also flagged this file as malicious. The primary purpose seems to be directing users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9646
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://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c9f0ec88e---sevadidomajuwevinenat.pdf
- https://cardion.dk/gfx/fckimages/file/77281305788.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084986b99a28---mawaxep.pdf
- http://soepcentrale-dekeyser.be/userfiles/file/55467871312.pdf
- https://agrilaui.com/userfiles/file/98920556027.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/ae951fb9e23824192af0827448bec258/6477510759.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b7efa1f25b9---rutavofapuxusutebivosexo.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609b00c44f502---83376614754.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/c624ccbf4d70be822e98a75961c99bdf/67335946872.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/ad34dd7ec4933217a7c0a9ac518cd3c1/62539812461.pdf
- http://olimpic.hu/ckfinder/userfiles/files/81372388434.pdf
- https://comobrew.com/newsite/images/user_uploads/file/wunagufezutot.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/cnmdt7k9a2eqcrmodf6va8idhq/nosulizaf.pdf
- http://przychodnia-felinskiego.pl/uploads/editor/file/96283923958.pdf
- http://vaughanreunion.com/clients/7/7c/7cfe0b8ff6d5e3136a6575a9b258a09c/File/94893622574.pdf
- https://siroyensao.com/upload/files/nemifededakuramuw.pdf
- http://hanhthien.net/uploads/file/97345784832.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/pgcblckeu2pchbvkm1l409die6/jogami.pdf
- http://ride.hu/images/uploads/files/kodatoriruvebavozuw.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/16080dc5dac9c1---mopizojizefujimiduloda.pdf
- http://sskj.pl/userfiles/file/21137713961.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096018807212---22633023145.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/i7kd6itrcc9olp3po593cgkrl2/85977304134.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=cuddle+meaning+in+english
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_006_off0001730c.bin7b4d882a35d6fbb958a41add8428faf7352a1839d932a469352a06728db1f9ac |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1730C | 19156 bytes |
font_00_sfnt_off0000ee7d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7D | 16792 bytes |
font_01_sfnt_off0001068a.binc038b5c1667fa88976f445a1104e62b62de7718f2b62be1d6c2bdbdd533b660c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1068A | 5316 bytes |
font_02_sfnt_off00011910.binb4faaa6d3530bff93b6d3d6b2bc7047e331375ca542da0e5a432722e921fbdca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11910 | 27608 bytes |
font_03_sfnt_off00015ba2.binbad2af0af7e32011f353b45b2e69512e511799f3e8b2591f781672d91b3c4f56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15BA2 | 10508 bytes |
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