MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
This PDF was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier, indicating malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised or disposable domains, suggesting a phishing or malware distribution scheme. The presence of multiple links on potentially compromised WordPress sites reinforces the malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://msslink.ru/userfiles/files/diwajuzuzejesom.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e98758e091---zuvinufebebolus.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/f6a8f9e20cbe69f4a64e319bac414084/kodotibudupunaloreg.pdf
- https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/883af63105100d5e90af17acffc092ff/86072029290.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5db9fc5e0a---debuda.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/09851d876c75bb7411e26da5a91df3cb/galokapogotalomas.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/bf0906a3425f3cfa9879baea37576d28/wojipewamu.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086b9d039283---18852804670.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb689843ba---jomumigebopazepimutumigag.pdf
- http://bahtiyardishekimi.com/fckfiles/file/xetanujupejepiv.pdf
- http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210611_81B51F9E24C1684E.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/ardpv3c2fstd3e55426rsksa80/lobazufagozozewu.pdf
- http://carefirstwalkathon.com/clients/8/89/89514deb4c0e8807eb046cac28c4977f/File/mekiruzinom.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160831887538c1---lenomejij.pdf
- http://www.naraihillgolf.com/admin/userfiles/file/67508757567.pdf
- http://starlightcelebrates.ca/clients/4/43/43e9139217482d7666ce300faf566241/File/kewalelez.pdf
- https://anyimaker.com/upload/users/files/64272568703.pdf
- http://caramelitos.sk/files/kagamozexaxurafuzamev.pdf
- http://pensacolahigh1964.com/clients/1/1d/1d652d7f5bd5fd2f3712913460b20393/File/vegelojetisisu.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160985efb61915---lozegoraruvu.pdf
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/nm3a78uj9l0alp94es83nh0kee/kopogaraxax.pdf
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/fc275c6432beee46f98811520ab8bf1e/78246044274.pdf
- http://laulumaja.fi/ckfinder/userfiles/files/xizudojabokipisimiwimap.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/2n956l69iekjiv20i1ucfk55ji/61248027575.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=university+physics+young+and+freedman+pdf+free+download
- 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_off0000f701.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF701 | 16792 bytes |
font_01_sfnt_off00010f18.binf09d786dae060c36b8d9755d860dece54d0fa09ba3a6707329b3f9cca3c6ad36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F18 | 11440 bytes |
font_02_sfnt_off000129d6.binf4da9f42a59be995b3b26de67e1bc7e4e79bc7884055f08f6981cc31d3ddefb7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129D6 | 22172 bytes |
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