MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of numerous PDF links, many leading to unknown or potentially compromised domains, reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://corpusbg.com/files/fck/file/dokorevu.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608d295f1d40e---tevupabetaxemigu.pdf
- http://vigova.vn/Images_upload/files/rapononasojodifomov.pdf
- http://phuquytravel.com/nguyenvanlinh/files/23354422589.pdf
- http://sochi-polyana.com/ckfinder/userfiles/files/xodubef.pdf
- http://amon-syotengai.com/userfiles/file/39936456300.pdf
- http://abwessex.com/uploads/files/66740236173.pdf
- https://ev-owners.jp/userfiles//files/naxiwunuxojiw.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160f5fdc0ee48f---fakokufomaxilaverapevuz.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1607689a18487f---depom.pdf
- http://apricomm.com/userData/board/file/263805448.pdf
- http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58660130443.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d536b37d4e2---98967579537.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/f51bba4fcdf1eba0d1fd51943dd4e675/97501457024.pdf
- http://bet-balance.com/userfiles/file/wazibawakubikexido.pdf
- http://universalestetic.com/userfiles/file/29960214815.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/810df4862e927359c451605072e7cce1/63190371579.pdf
- https://arch.ua/ckfinder/userfiles/files/lagetusesuduzom.pdf
- https://aymsoft.us/aym_image/files/modevigenewarabemerof.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf252cd94f---vetefeva.pdf
- http://alexandercdg.com/clients/36029/File/99835242222.pdf
- http://dichvugiayphep.biz/upload/ck/files/tipun.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=real+cricket+19+apk+free+download
- 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_off00010027.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10027 | 16792 bytes |
font_01_sfnt_off0001183e.bin66103762a58bfd5d6594419fd7e62357990b9155e944d75063f4fc19609981b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1183E | 10888 bytes |
font_02_sfnt_off000131a5.bincc168dd758c5c1edbd974511a0c4643a8db8e473741560979f79ea600efcb3d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131A5 | 17972 bytes |
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