MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are part of link farms hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery, possibly via a link to a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://catamma.ru/uplcv?utm_term=download+car+race+game+apk
- http://oembag.com/uploads/files/202109120847406777.pdf
- http://dblbtech.com/userfiles/file/79524215393.pdf
- http://wxeina.com/userfiles/files/40399305953.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161326685dfd94---3044031256.pdf
- https://lotte-ppta.com/beta/assets/file/2227274760.pdf
- https://reparationmobile.net/userfiles/file/96543924627.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/da0b567be06f2d06db1f64d1ad4f08a5/penosuvewuv.pdf
- http://twilaw.com/files/files/mabujiwukejusakelupibeve.pdf
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/3e2deeff3dd8669cee9822cb4a0347cc/zimeg.pdf
- http://dymenahealthcare.com/upload/fckeditor/file/bujot.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/v2o4aljhc22mhkgk51antb9vkl/litelijumi.pdf
- http://riverhouse.at/pcms/content/file/19887024951.pdf
- https://nhabe.com.vn/ckfinder/userfiles/files/fagajavetafodukibotexozos.pdf
- https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/885373271.pdf
- http://www.yevres.fr/ckfinder/userfiles/files/zonasopakagurezazubur.pdf
- https://pingthye.com/userfiles/files/xarelodara.pdf
- http://manegedebuitenwijck.nl/uploads/file/mazatarelumedopazixu.pdf
- http://vstarmp.cn/upload/files/20210901_121430.pdf
- http://www.juniorcollege.cl/ckfinder/userfiles/files/54854145664.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612eddf2913e5---52103697042.pdf
- http://wittymall.com/multimedia/userfiles/file/pufuzilupuxomivetugi.pdf
- https://suprizpin.com/calisma2/files/uploads/vulejojosumuvekat.pdf
- http://marketingnews.fr/images/file/55849358291.pdf
- http://babywagen24.de/userfiles/file/75447214189.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_off0000bb22.bin9434beefadaffd0d41f019eef511676e1638cbda3b4afbec2d63c9e8a66ff730 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB22 | 15916 bytes |
font_01_sfnt_off0000e3bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3BB | 16792 bytes |
font_02_sfnt_off0000fbd2.bine0633aabd01c89dcdcff527e5ef771ef32097b30ed6270d293f766e70b34093d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBD2 | 10680 bytes |
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