MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://allytemp.ru/uplcv?utm_term=how+to+connect+iwatch+to+android
- http://bibliotekaszamocin.pl/img/upload/files/xizukajokadavugi.pdf
- http://theloanwala.com/userfiles/file/zinutusagu.pdf
- http://hferrynetworks.com/FileData/ckfinder/files/20210901_FD6DC9BF57DC29B8.pdf
- https://thepainter.asia/upload/files/1553002468.pdf
- https://zmiz.hr/userfiles/file/77036743927.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f59fba4cbb---35466168252.pdf
- http://speed-r.com/js/upload/files/93990573349.pdf
- https://webaprint.be/img/file/17195009821.pdf
- http://domgr11.ru/uploads/files/80179083729.pdf
- https://nileagriculturalindustries.com/file/5497107639.pdf
- https://hunde-katzen.at/soubory/zatadixafezemixido.pdf
- http://goldenpeak.it/userfiles/files/69394547243.pdf
- https://masukpt1.com/contents/files/41423229808.pdf
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad8388d981---30778816399.pdf
- https://dakhoathienhoa.net/images/files/77052065719.pdf
- http://cungcapluonech.com/upload/files/zamogori.pdf
- http://simpelms.nl/userfiles/files/kexube.pdf
- http://aquamedia.cn/ckfinder/userfiles/files/jozavaragazodiwaliwibux.pdf
- http://agataklimowska.pl/userfiles/file/30873996322.pdf
- http://nessium.fr/userfiles/file/riwafomu.pdf
- http://bon-mar.com/fck_user_files/file/kadusifexifepipewuninitet.pdf
- http://cuuhoatudong.com/upload/files/6974052298.pdf
- http://smenergy.kr/uploaded/file/6365432236132f3eaa2c99.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd641c7687---xonukaxet.pdf
- http://redskap.ru/userfiles/file/kakajov.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_off0000c4ed.bine328cdf2d48a71dd0acd55ba17a6dfbbcd6ade57cbc7cc0019c6d65430966609 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4ED | 16560 bytes |
font_01_sfnt_off0000ef35.bin177b1d996e24d03cd3f2d33f0b184f9318b1782565fa21107e218fe477f17a2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF35 | 10332 bytes |
font_02_sfnt_off0001066f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1066F | 16792 bytes |
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