MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external resources, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded links are indicative of a phishing or malware distribution lure, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/74d021dbb85b1c1b473b50384000de30/tejobajivutajo.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/095da5211c86fa20dd831054cbcf6831/zosiz.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd51b7c03c4---wolozotorovajipesijokupog.pdf
- http://myappartement.de/web/editor/files/50461075221.pdf
- http://mackielaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vaxigipozuzozulani.pdf
- https://pointvirgule.ca/upload/editor/file/51592438418.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bef1259bfe7---89537911913.pdf
- http://darienhighschool1961.com/clients/6/6a/6a5b14ca9cca6c9c7811e238b5dc87af/File/70981743213.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/7cc82cb0f35b31473ccd89a59b61ddf7/wakilaronejokukid.pdf
- http://xsjprinter.com/d/files/10564459592.pdf
- https://mimpisiluman.com/contents//files/kerufijimazawomob.pdf
- http://dh-cell.com/ckfinder/userfiles/files/dafajodobapowusokor.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a9237731ad---93786836521.pdf
- https://mm-podium.ro/userfiles/file/57768857279.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b949a3a699a---jevunigelotuwejutetej.pdf
- http://akcjonariusz.com/UserFiles/file/jemikajarub.pdf
- http://covinahigh1980.com/clients/1/14/147ee80f0cf2e08ca1b5067d21485a43/File/3425224291.pdf
- https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/wasegabitumaxazez.pdf
- http://makinsushi.com/uploads/files/67059775258.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f0afc610586---babakivubisozinekonu.pdf
- https://hunghiephuylog.com/upload/files/54668831030.pdf
- http://zhfangyuan.com/uploadfiles/files/nodok.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac862d5449c---7563129946.pdf
- https://gyn-koe70.de/obrazky/file/muzovipin.pdf
- https://fanaf.comarticle_ressources/file/fidunalumobifikamumalid.pdf
- https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/irbsd5q0i5t30di2gug8avcgj4/41861969832.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=documentum+d2+admin+guide
- 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_off000103ab.bin34fe0d62624116a1f2674deb2726c30b3d8911463847c62684f1f8fc60bf222b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AB | 18496 bytes |
font_01_sfnt_off00013471.bin69917f1084998bb1a1907c5dc9a385643f723e454cb5da12ec2f8cf3abdf2184 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13471 | 10620 bytes |
font_02_sfnt_off00014c8d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C8D | 16792 bytes |
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