MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://archism.ru/uplcv?utm_term=chal+mera+putt+2+watch+online+full+movie
- http://tksvolga.ru/userfiles/file/42247442271.pdf
- https://kingdom.vn/userfiles/file/fobewajetuziwizi.pdf
- https://lescourailleurs.com/upload/editor/file/93249092501.pdf
- https://brazilairporttransfers.com/ckfinder/userfiles/files/8752174008.pdf
- https://lacausedeslivres.com/userfiles/file/25851911499.pdf
- https://mkycc4.com/kycc4.com/userfiles/files/mezimen.pdf
- http://viorina-deko.com/images/file/34660216238.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/940c6a6b07f0caa4b4809d083c4142ef/rarejiwetinew.pdf
- http://sipzip.com/userfiles/file/pibofugajomofodevolu.pdf
- https://salondumariagededijon.com/userfiles/file/54756218989.pdf
- https://yukkumpulgroup2.com/contents/files/69504896756.pdf
- http://creativetechno.in/userfiles/file/95243782593.pdf
- http://chinawin-consult.com/userfiles/kulipovajepeb.pdf
- http://autosoftware.company/autoresponders_images/files/25496420746.pdf
- http://rujiahk.com/uploadfiles/file/98763314654.pdf
- http://www.s4b.nl/upload/files/62746806382.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/56beo3r7r0mo8h614t72trjr1v/51903857967.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16142c276839b4---tanigu.pdf
- http://luatsugiadinhviet.com/upload/ck/files/36203900755.pdf
- http://betheaskssd.com/flash/betheaskssd.com/file/falunujeji.pdf
- https://unitedpetexpress.unitedreloth.com/ckfinder/userfiles/files/lemimozizojunezid.pdf
- http://www.keizerco.nl/userFiles/file/wokason.pdf
- https://tktravelkorea.com/FileData/ckfinder/files/20210916_964073DB6F190FBD.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_off0000c968.bin867d5e5c9c7176c1f8b7138b8b16002f096600b52c1ee7edb3aaa931707941ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC968 | 10980 bytes |
font_01_sfnt_off0000e2ce.bin41bc4f05d8f71214b98b155ef9126e2bde549bb4c0971d6cf1b79db7a268a9fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2CE | 17424 bytes |
font_02_sfnt_off00010fd4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD4 | 16792 bytes |
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