MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous external links, many of which point to compromised websites or disposable hosting, indicating a likely phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, classifying it as a phishing trojan. The presence of a link farm on potentially compromised or disposable infrastructure is a common tactic for distributing malicious payloads or redirecting users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://oniceh.ru/uplcv?utm_term=kinds+of+settlements
- https://kulittelor.com/contents/files/makodidukifipobadoxed.pdf
- http://tjsijiqing.com/ckfinder/userfiles/files/2021/0912/4ea05c6d4c8d6f6e829c8f88f4e59cef.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecb833138d---23106843.pdf
- http://hamishehbaharcarpet.com/My_Project/Hamishe_bahar/ahar_img/files/54005416708.pdf
- https://fibaquitaine.fr/cebatrama/userfiles/files/zoloxefenagukabexi.pdf
- http://benthanhsgfarm.net/images/uploads/files/tunudotadevozitapo.pdf
- http://open.ua/uploads/ckeditor/files/26261872865.pdf
- https://lexcyberia.com/userfiles/files/ruwewufofuwunarufo.pdf
- http://chinatriage.com/ckfinder/userfiles/files/58849525070.pdf
- https://prcomponents.com/ckfinder/userfiles/files/73752264397.pdf
- http://smartwealthhk.com/userfiles/bajiguwojimabebilimetafiz.pdf
- http://roseeskin.com/userfiles/file/20210925163658.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c71bd1540d---88830214050.pdf
- https://fullmagicweekend.com/ckfinder/userfiles/files/3772433427.pdf
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/nelogajemejuxizizafutul.pdf
- https://tierlistei.ch/downloads/12169368150.pdf
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16130bb3184382---67567674414.pdf
- http://mawaevents.com/uploads/file/sudarebiw.pdf
- http://velapower.com/glwh/UploadFile/file/2021090712542973499.pdf
- https://ecoolteh.eu/galeria/file/tekubo.pdf
- https://servingltda.com/userfiles/file/zawogore.pdf
- https://efsanepin.com/calisma2/files/uploads/ferukives.pdf
- http://buyyoutubesubscribers.com/ci/userfiles/files/difikevuwarizebejuvil.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_off0000d7b7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7B7 | 16792 bytes |
font_01_sfnt_off0000efc9.bin49a644c36ab287844fdd3fa91fca85c6280d1cf719d6efc9e73e3a5e643f8ba5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFC9 | 19480 bytes |
font_02_sfnt_off00012207.bin8977195256c5e910c5211d7cc410bc0f2370a18c5535a06a3e14d554789a9505 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12207 | 10244 bytes |
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