MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to compromised WordPress sites, likely intended to host malicious files. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608df60f22fb8---61629583237.pdf
- https://alice-immo.com/userfiles/file/22834203414.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/eedc66f616f7eba8f3b459edddd80bdd/lanugogizipavemimemaloka.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7c518aafd---lamaxagixamumavupajoxanu.pdf
- http://rajskiewakacje.pl/userfiles/file/30425117295.pdf
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/e10218cc284189c48c0487fce53ff31c/koloboxovuwe.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ab9138c388d---78737803142.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/53a712704f561410f0b387ac210f9113/nefesumuzufuzomexedotefo.pdf
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607164e36d2f4---nusazenewokepomo.pdf
- http://innotec-industrie.be/userfiles/file/gujufiwomatabasifuxidemik.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a670a5873---nobajasotagupufobuxovo.pdf
- https://weddingitaly.jp/images/file/barujuwoborakosetufiz.pdf
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bf08228cd13---rofibamix.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608d93246480e---wisozawuxoxazuto.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0587c05cd9---nebadulakoxenujanenuse.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/431cc9eae166454522a496c75be7a046/wexenu.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/19fjknrnfjmu4b72n8r03abi27/251496915.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/510112a03863e4086ba63c160301fe84/18662017761.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/bed361137bf39440eed167dc078902ae/govodale.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/df5ec06892b9f046ddacc0a38344865d/xuvam.pdf
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1c371f957---58570057520.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/2o5rl7hm3n7biirv4pk2sgkc7l/jogovugejuxo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=west+hartford+library
- 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_off0000eb71.bind3835c1191effc7b93be8ac9b0526275d4720dde746682ad5a2cda996000b8d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB71 | 17204 bytes |
font_01_sfnt_off0001185f.binb19346f96f16d25a56ad40e03cf34014365c9f69da2bb8e8fbf18cb7e3317dbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1185F | 10596 bytes |
font_02_sfnt_off000130be.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130BE | 16792 bytes |
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