MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classification and ClamAV, indicating it likely serves as a phishing lure or a distribution point for further malware. The numerous embedded URLs, many pointing to compromised WordPress sites and utilizing UTM parameters, suggest a link farm designed to redirect users to malicious destinations. The file's structure and the presence of many links indicate a tactic to obscure the ultimate malicious target and potentially evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 https://crysiq.ru/uplcv?utm_term=algebra+1+final+exam+with+answers+2018 PDF link annotation
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160f721da857f5---14874964156.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/ed9u898osek82s4oeab8s5k6dg/61457890483.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/94599936405.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611bef4bab5ea---pigofobakipasiwub.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611130d4ae89c---suwino.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/78849c47d51e638cf49fac3a6bfd7dee/90680193411.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161065e96cb614---rusovareve.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/38266220064.pdfIn PDF document text
- http://proreferee.ru/uploads/ckfinder/files/53001441861.pdfIn PDF document text
- http://newworldss.com/uploads/file/witutugezedufefig.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d89f9650b0---70992626505.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160a1789bb9de6---jupurigawixokulixi.pdfIn PDF document text
- http://odessahighschool1970.com/clients/7/70/70263b1be1b93b62200e198143f59f20/File/wiverufe.pdfIn PDF document text
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089dd21d9697---15926646359.pdfIn PDF document text
- https://aldapa.eus/files/galeria/files/73807716104.pdfIn PDF document text
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160813ef192fab---86644814697.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/84a1fe127cc1e85db1ae2d8d35f902c0/86818928222.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c3571525bba---zaduvalukadixav.pdfIn PDF document text
- http://21cedu.com/pds/userfiles/files/xibakoxulutukemod.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607750dd69274---fidagi.pdfIn PDF document text
- http://pcccphucvinh.com/upload/files/dimafim.pdfIn PDF document text
- https://grouptm2.com/contents//files/31902019338.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa266301f1---gajegurewubixer.pdfIn PDF document text
- http://alanurturizm.com/rsm/files/18188494653.pdfIn PDF document text
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098982ed4010---juwepa.pdfIn PDF document text
- 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_off0000c335.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC335 | 11352 bytes |
SHA-256: 9d4f8891cb3caca5bbdee865789827cda2cf599d1d9dc0ed4df6a07478a18f39 |
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font_01_sfnt_off0000dde1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE1 | 16068 bytes |
SHA-256: 4f3c79bf846adb65ae153ea083c84aa02e382007d21e5a84213e4d024a330925 |
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font_02_sfnt_off0001070f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1070F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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