MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. While no scripts were directly extracted, the PDF structure and heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9903
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://isgsrl.it/images/file/pozulakiwawutukuguweme.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d0023c1764f---zugawovobututenup.pdf
- http://bhsclassof70.com/clients/a/ac/acf0241a72c9eb28a719a759cf8a4748/File/77313087161.pdf
- https://celebicatering.com/upload/ckfinder/files/depiwilakekemovij.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160af7ffc1ef69---71006010219.pdf
- http://southwest66reunion.com/clients/f/f6/f6f8b7bd17d60304c359e527a2c43449/File/71892912684.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/13aa4ab9a237edbbc8646cafaa10a754/gojalerunewe.pdf
- http://byty-pardubice.eu/UserFiles/File/31995907236.pdf
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/uk688ukuchb5iji92634rj7j1o/lujemazepib.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b93fe46ed---zunonisegudajidixev.pdf
- http://thaoduocvn.com/userfiles/image/file/77980803166.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16079172dab752---satovumejubujuwa.pdf
- http://polipadel.com/userfiles/file/lawakuxotinu.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606f338c4e135---dutowizepuxubujozama.pdf
- http://lideparts.com/userfiles/file/1625183739.pdf
- http://ros-grad.ru/fck_editor_files/files/jozomemekibubaximimupota.pdf
- http://www.climatisur.com/ckfinder/userfiles/files/boluvudosolijudadogisel.pdf
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/93lfdkltobbou4cmo9v71r29lh/71421898590.pdf
- http://ifaistos.reality.gr/~triantaf/images/file/kijadaluzajegiw.pdf
- https://dolaodong.com/userfiles/file/nesejewoxitulov.pdf
- http://dolphinegypt.net/userfiles/file/46626706385.pdf
- http://bazis-expertiza.ru/ckfinder/core/connector/php/files/polofivovokefenugo.pdf
- https://latework.cz/soubory/58691851500.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160718a3dae1b6---28695350177.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b015c9fa67---bileguburopovopew.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=please+run+this+program+as+root+kali+linux
- 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_off00020db8.binfc8a4e4a03d5cd56853dafdb53937d2724f839ebbabb9814a5d06cd58c694726 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20DB8 | 10992 bytes |
font_01_sfnt_off00022713.bin70074302bc8fbf8d24ecc99d00d8cbc37a0beba37b8f5e526999c263b6dc6523 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22713 | 19724 bytes |
font_02_sfnt_off00025a94.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25A94 | 16792 bytes |
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