MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9877
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 http://hzyixiangchem.com/upload/files/85479837873.pdf
- http://61kidsclub.com/userfiles/file/77877533327.pdf
- http://gamebonda.com/ckupload/files/kuparek.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16137030d9f3f3---70791682698.pdf
- http://blossomtour.net/FileData/ckfinder/files/20210914_6538CDEEDBA6B989.pdf
- http://a-pluset.com/userfiles/46463046928.pdf
- https://bellcera.60km.com/upload/files/10710595704.pdf
- http://maychaybocaocap.com/app/webroot/uploads/files/2219453251.pdf
- https://bodegoncriollo.com/userfiles/file/83983881706.pdf
- http://realcomfort.ru/content/upload/file/woviduf.pdf
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132fdd812c63---kurakubitur.pdf
- http://taiwanquinoafamily.com/shopadmin/upload/files/60253037355.pdf
- https://ducthai.vn/userfiles/file/93571579904.pdf
- http://archissimo.eu/userfiles/files/pivibijetixazujeb.pdf
- http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/xopopenu.pdf
- https://coaching-jk-academic.com/ckfinder/userfiles/files/muxonunofik.pdf
- http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/85733153883.pdf
- https://lidiyageorgieva.com/ckfinder/userfiles/files/wogeratupexodapib.pdf
- http://www.lnk-creation.fr/upload/file/15172014532.pdf
- http://www.verneteco.com/ckfinder/userfiles/files/ravanawivigijuduwej.pdf
- http://energo-winstal.pl/userfiles/file/64043092212.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161359eac2a795---76499645853.pdf
- https://kaisar168.com/contents/files/31491024031.pdf
- http://uzks.hr/upload/datoteke/zavibalipeboposuzobokewe.pdf
- http://themadthinker.com/temp/vinney/HTML/userfiles/file/4375485521.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/a1aa884e78f611dd3c88a54d6510b06d/zukebefabikivamuluget.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=encyclopedia+of+fairies+in+world+folklore+and+mythology+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_off00011b49.binb7001dac125262ddfcea4c03492d33e086095d439c31159481ed67aa9e8f32f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B49 | 21116 bytes |
font_01_sfnt_off000152b0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152B0 | 16792 bytes |
font_02_sfnt_off00016ac7.binc3c480e522185a1150b4bc3ee793f8c6b4507a19f3f8127fa3db3d9692924420 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16AC7 | 11344 bytes |
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