MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites, suggesting it functions as a link farm to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, pointing to a tactic of leveraging compromised infrastructure for distribution. No scripts were extracted, but the PDF structure itself is used to host these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/d7d419dc4b8b0857527820bf8d520abe/76172210714.pdf In PDF document text
- http://sattosushi.com/uploads/files/3015193351.pdfIn PDF document text
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd664b1f6e---43912621429.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/1358qbj7m0g6mes18acqc1r4om/vajamevexowujunufigibak.pdfIn PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/qe4d1rktannbac0gqneppfenk7/40740768147.pdfIn PDF document text
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/5ea8a3fb89d004c903417eb9d6d46043/85165814669.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/bcd5648b737a60845b23c854af4f1a8a/nitalunegisategizidewopak.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc1860d823---31562224335.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b96ce810500---sasifunufamifa.pdfIn PDF document text
- http://angelojrobles.com/admin_initial_test/userfiles/file/55837224814.pdfIn PDF document text
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/7nai6sdra8bfunjkq3r8e6ght7/fivixiwerotanapowabuwilo.pdfIn PDF document text
- http://flywings.sk/UserFiles/file/zuxedufasobaranab.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/6d6ea05380947dd6ae3f3a09f9373128/66260021257.pdfIn PDF document text
- http://cuacuontoanthang.com/media/file/84814158066.pdfIn PDF document text
- https://egca.fr/userfiles/file/wofagolupoxinaxe.pdfIn PDF document text
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/2ef9e540a081ad80a26b3cd28c861486/konagimirekonuz.pdfIn PDF document text
- https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/27141205da33db4f3dd1e7caef7aea5e/11989156656.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607849c93e72c---nefotategizuviwajufilapo.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074b6d7e5fc3---45797563319.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16092d314f11ff---kopas.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/eau56tlb7bu0agdvbdvmn902n8/rimisasikejolavapofupo.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609328be62ca1---4248114458.pdfIn PDF document text
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/042bdaa0c31b020430b526180db616e0/fosugivedirajafir.pdfIn PDF document text
- http://apsara.ru/userfiles/file/56579221066.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609742fc25bad---44886247539.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=airports+in+uruguayPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f18c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18C | 17764 bytes |
SHA-256: 7d2dfd9aa277f85d00f9c6a5e579edd382b3dd748f0482e3553e9f64ffb3a35a |
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font_01_sfnt_off00011ff8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FF8 | 10444 bytes |
SHA-256: d6a335beaaab809a2ac29608467afe830c4489df09449561a5b5f7cb00d34f23 |
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font_02_sfnt_off000137d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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