MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous links to compromised WordPress upload storage and other disposable hosting sites, indicating a link farm designed to host malicious files. The presence of a 'download button' heuristic and ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://krisoc.ru/uplcv?utm_term=how+to+recover+sent+mail+in+outlook
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ec78d613c---50059113176.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc0a99e882---wiwowasidoxofezarux.pdf
- http://bukhatirhomes.com/userfiles/file/dolabadidijezelove.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607c13ac87367---52206189962.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c62253bb6e5---vusiwisofakamisijoravu.pdf
- https://asset-books.com/userfiles/file/92928016587.pdf
- http://statewideroadservices.com/clients/879378/File/74786415573.pdf
- https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/b986d97ca2470847895e950be29b777d/27173463441.pdf
- http://tecresconsolidamentorestauro.it/fck_data/file/rovasesobovewiwagodip.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b998e02737---gopudaruz.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f08a065db8---48980852971.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3b7b61c9bb7441bcad543938411c9a19/koxowoxogi.pdf
- https://www.mnspineandsport.com/wp-content/plugins/super-forms/uploads/php/files/cd23d395578d7ab90f6fc04ff61bfeba/sevekodewagokidiziru.pdf
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/9e41eaff17a5e7e7e4d03f01dc8aec27/mivatonuduwexubodutonux.pdf
- http://romanakladatelstvi.cz/userfiles/file/68718722058.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080e4cb29cd1---rizubuwofarubazetiwuwew.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/8c6e85eda7e4dc30a7553e50f5f9b0f3/92827992490.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/adfd6286aaa8c7dafd5c81f74f3ea197/63964361436.pdf
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160927ab722afe---1385292555.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afbcc80df5a---9157271561.pdf
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/3b1ba012182910807e7b85cb618fbbe0/zosumolije.pdf
- http://altelaw.com/uploads/image/file/51855454962.pdf
- http://nutronicltd.com/userfiles/file/52084735280.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_off0000e44d.bin95e8bd05873bd97b45b0ab7f9728795eefa36ef3999746364abbb40e2b22d42b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44D | 17120 bytes |
font_01_sfnt_off00011120.bin359ef1bc4b03c40e2e61e0bf4e5f1ee1d215f7113c4140e2baffa6718d9bb36f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11120 | 10728 bytes |
font_02_sfnt_off000129c8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129C8 | 16792 bytes |
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