MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is classified as malicious by ML and ClamAV, indicating it is likely a phishing or malware delivery attempt. It employs a link farm strategy, directing users to compromised WordPress upload directories and other suspicious domains, disguised as a free PDF download. The presence of multiple external URIs and link farms suggests an attempt to distribute further malicious content or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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 https://queure.ru/uplcv?utm_term=financial+accounting+made+simple+free+pdf+download
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b101269c70---dusiv.pdf
- http://55pluscommunityspecialist.com/userfiles/files/beterepexuregofijogokugu.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/6ca7b133j28a6ojhdc8964i607/22384826903.pdf
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/a04e0c214914a9de3533cbbd7629ee52/44499330921.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acba770049f---54716708692.pdf
- http://hurtmar.pl/Upload/file/23001027644.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/fgo49bu11j4ij2dsh7l1mupank/14739199886.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073df851f6f0---53542120522.pdf
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/c65e046da6e374cd3d0c005b53a13221/wejozerujipe.pdf
- http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/16072ae484057d---jamesarilukunezononigila.pdf
- http://pvhs1967.com/clients/a/aa/aa78cb05297cd93d8a9ab6bd1eb8a3c4/File/14673352253.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc74b649ef---56771651514.pdf
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082513193b08---vafeguxago.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/8595a1344ffc37e6638752b100bd935b/38194260705.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16098149da370f---mujujaner.pdf
- http://fluidearthconcrete.com/userfiles/file/tuvuwerixusasa.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec37.binc5f0bb7a055a7efe83f76cbf9ecc65307b334d2b21888998a0479cef839bac7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC37 | 5520 bytes |
font_01_sfnt_off0000feff.bin6ea04ce5d9495e0c48ca2190b5a38ccd3370208eb90f9f70db57a7a17f4b457e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFF | 11232 bytes |
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