MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to multiple external URLs, with several hosted on compromised CMS platforms or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is unreadable, but the heuristics and URLs point to a malicious link aggregation strategy.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://stonebreaker.at/gusubuxebuxoxewifasukekir.pdf
- https://coastalstudio.com/images/main/file/zewakomavevozezixaxeb.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134987453227---60047582810.pdf
- https://dichocungtoi.com/userfiles/file/biruzejobonaxi.pdf
- https://congchungnguyenlieu.vnpec.xyz/uploads/files/xonugesadumebo.pdf
- http://simsvizag.com/admin/uploadedfiles/file///76553968299.pdf
- http://viettelhaiphong.me/data/dulieu/files/15542649439.pdf
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/mqamcj8rc85jjf5oc3ahsom6i2/danimegukagevawawejigoxa.pdf
- http://moje-stranky.eu/userfiles/file/30500982504.pdf
- http://fqcycpa.com/jingkelun/userfiles/files/20210902174929.pdf
- http://www.vinoplaza.nl/img/upload/files/79214061367.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/6cab3cae8df46dba51228f16fa2638a9/dabogi.pdf
- http://agt.es/files/galeria2/files/jorume.pdf
- http://jessie.vn/images/ckeditor/files/zugewe.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16135a3e1c2e56---lumudanagomawu.pdf
- http://mazurubezpieczenia.pl/zdjecia/fck/file/6267423781.pdf
- http://rebeccafantarchitetto.it/userfiles/files/47289898215.pdf
- http://microsolder.hu/userfiles/files/87015751267.pdf
- http://cupta.org/userfiles/files/20210909050415.pdf
- http://perfekt-dom.pl/designhome/admin/userfiles/file/51489675472.pdf
- http://digitalpolicycouncil.com/imagenes/file/fanatasamudubuwajof.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=what+is+call+filter+on+android
- 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_off0000d324.bina13788bda8b1507443c74f18620d1799b9386f534ebe631d97df1f36fd46b4aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD324 | 10568 bytes |
font_01_sfnt_off0000eb38.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB38 | 16792 bytes |
font_02_sfnt_off0001034a.bin37c58e69686263adf37c24f0518a602f48ee565601f040318c3480291f0f3c36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1034A | 17896 bytes |
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