MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to various external PDF files, some hosted on compromised CMS upload storage. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document's purpose is to trick users into downloading password-protected archives, a common tactic to bypass gateway scanning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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 http://straub-online.ch/userfiles/files/19450952117.pdf
- http://apicn.net/upload/files/kepaxixerumimajesa.pdf
- http://whipitleather.com/userfiles/file/rotaf.pdf
- http://bjhtdszdh.com/v15/Upload/file/202191649105575.pdf
- http://xn--80adic7alej3d.xn--p1ai/userfiles/file/feremonenase.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fa6aa6264---lemerab.pdf
- https://yifff.se/userfiles/file/12363995274.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614d6974849d7---jopijavubi.pdf
- http://www.kotolantopeni.cz/files/98285341254.pdf
- http://www.jfac.kr/ckfinder/userfiles/files/5585312277.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/qa2401jfs0v6eorfl07uc0ei93/bolamumobaduwilusasijifok.pdf
- http://cycling-software.com/files/file/40496203.pdf
- https://defrokatilai.lt/images/files/86690472050.pdf
- https://drnanemilk.com/tctt/sites/aaa/file/7715842136.pdf
- https://autoradiator.mn/uploads/ckfinder/files/1118810452.pdf
- http://cleanyachts.it/writable/public/userfiles/file/84047414081.pdf
- http://daydreamspin.com/userfiles/file/99567696065.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b74b1c8393---fibugeparak.pdf
- https://cncunse.com/d/files/rugefux.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614b8acfb4b8b---43980037696.pdf
- http://www.fishandcosolicitors.com/uploads/files/38891367305.pdf
- http://carsonpokebar.com/uploads/files/nijamumej.pdf
- http://mlead.net/images/e/file/dirifoz.pdf
- http://conomiya.com/images/uploadedimages/file/59672279857.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=free+fire+max+apk+pc
- 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_off0000b246.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB246 | 16792 bytes |
font_01_sfnt_off0000ca58.bin2b95c52fa0669a2a03814eb0daa3c76214d3c91f8046b9f52fdf7ca55bf49299 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA58 | 17044 bytes |
font_02_sfnt_off0000f58a.binb254bf2f52f219db8a4a109176e7bffd89c2494cfe1aa5c6de67501936138915 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF58A | 10276 bytes |
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