MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
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 multiple external URLs, some hosted on compromised CMS uploads. The presence of external URIs and link farm characteristics suggests a phishing or malware distribution attempt, likely using spearphishing as an initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 https://garglob.ru/uplcv?utm_term=ice+climber+android
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613026b7225f8---ganeturaloxonimafotug.pdf
- https://dukra.sk/editor_uploads/files/pusiforejepiramit.pdf
- http://iburgisidimarsala.eu/userfiles/files/60600893326.pdf
- http://www.haztartasigepszakuzlet.hu/pics/file/buwofaselatovozejibu.pdf
- http://aliguoriarchitetto.eu/userfiles/files/xofososarasajavetufer.pdf
- http://baigeleather.com/userfiles/file/81004022889.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/62ce903188e6d60a5467ebeb864e8ba7/78157146625.pdf
- http://marcth.pl/media/fck/file/nabazexuvodiduvew.pdf
- http://www.hgbehringer.de/img/files/files/duvirifopanefilida.pdf
- http://condominiobrisasdelnorte.com/userfiles/file/78582746046.pdf
- https://foodvellythailand.com/upload/files/josiwuvasogazuwanuzup.pdf
- http://one9five.com/userfiles/files/tebivirelawowita.pdf
- http://xn--vb0b83rba554gca.kr/page_data/file/20210916013250.pdf
- https://siliconautomation.com/userfiles/file/fasirimaterusilajojosi.pdf
- http://mxag.com/upload/browse/file/butujilenuzemibukimaduv.pdf
- https://rtquery.reitoken.org/Coaching123/images/files/rasomumemubu.pdf
- https://www.wappa.com.au/siteadmin/ckfinder/userfiles/files/35143508570.pdf
- http://freewest.at/zelomozovejit.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613906dea72fe---xukevofak.pdf
- https://juhaszautovill.hu/userfiles/file/99153970280.pdf
- https://arhometutor.com/userfiles/file/pexijanimizofujofu.pdf
- http://zjleiou.com/images/upload/File/fuzobi.pdf
- https://bczenekar.hu/files/file/24741149505.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135eefb2da91---31539922394.pdf
- https://evermoral.hk/upload/file/1631430994.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_off0000d64b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD64B | 16792 bytes |
font_01_sfnt_off0000ee62.binf5593d9bcefc782c09724a26bc467bfafb0288b1ece6a46a1571a3d37c9198ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE62 | 10356 bytes |
font_02_sfnt_off000105a2.bin6f598ddb9a52faa5146b3a3f2eaff36e531111fe633684854123e68467e96ab0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105A2 | 18836 bytes |
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