MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised WordPress uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics further supports the attack pattern of luring users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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=buzzard+with+white+wing+tips
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160adb19fb4862---zoxarategirizexalenoboguj.pdf
- http://madmojo.com/fckupload/file/76613616727.pdf
- https://emprenderem.cl/files/85217641990.pdf
- https://hyosungulf.com/uploads/file/tubabotipadeluduletitobot.pdf
- http://skomi.ru/img/files/file/purigadifisibenom.pdf
- http://ndt-tl.ru/upload/file/tididovemutigowogason.pdf
- https://robertbah.si/files/file/gimatonelipudepozaf.pdf
- http://www.urbanwaterways.info/files/sizasexibiguvipuf.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/ed7c4e42d56ca87664a2679a9b33cca4/merubugiji.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160830d4a3b275---78701523787.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/b1bdb0a3ee3932a9a3356884efcc9ab8/60990146950.pdf
- https://jotekonybakterium.hu/userfiles/files/lunukiwuzapevexojajidexa.pdf
- http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/93195401526.pdf
- http://daydreamspin.com/userfiles/file/49374702468.pdf
- http://aylincinarli.com/fckfiles/file/95731454462.pdf
- http://synthecinter.com/userfiles/files/50309009877.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba97e899fd---64373770297.pdf
- https://majubesar.org/contents//files/37512726453.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/kbcnfprqbcbgl8evi3g0n71p5o/81377867705.pdf
- http://gchsclassof1970reunion.com/clients/6/6a/6a45fbe13d63dbb0eb8070d7cb9dbc89/File/53306499820.pdf
- http://belloverde.net/emailer/file/66710552540.pdf
- http://kartywspomnien.pl/uploads/assets/file/garadefolebaniritunupa.pdf
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/1c88f8a3adf839426d4a18a4fe281725/jujipotujowiva.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/8007bf2eddf9d149eb152ea1a06693a6/85502796811.pdf
- 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_off0000f097.bin7ec7aaf19e27fa3db264c7e761474a1daf5852f64aaf912611294638fcad9483 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF097 | 10804 bytes |
font_01_sfnt_off00010957.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10957 | 16792 bytes |
font_02_sfnt_off00012169.bin3b3421136cf7504c01e167fe0bf7dd497dab0e8d153fc13c207767d2975aaa03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12169 | 17196 bytes |
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