MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF is identified as a phishing lure, likely designed to trick users into clicking embedded links. The document contains a high number of external URIs, many pointing to compromised WordPress sites, suggesting a link farm used to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=free+printable+sentence+writing+worksheets+first+grade
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/c62a6aad0c2aea7976613b7a4e552f39/tibari.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a83a0f029---71288441913.pdf
- https://unaizahic.com/Files/files/nudanuxedopox.pdf
- http://lesbambousbleus.fr/ckeditor/upload/files/42876944987.pdf
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/3e34f805199cb498e6e760cd4fbe9f1a/846430684.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab44db0214f---maxaxinuxugifakevunuxaze.pdf
- http://cupta.org/userfiles/files/20210624145900.pdf
- http://baliretreatcenter.com/olabali_ci/media/images/newsfiles/56594669222.pdf
- http://fantacyhandicraft.com/userfiles/file/54303710546.pdf
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/dahq0ekkh53i3htvfo2ronv6e5/60615022203.pdf
- https://betenenergy.com/sites/default/files/file/jowikusimekuwunolateta.pdf
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16070f333ab773---suzered.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/cd778f62ec043f73a2982a1753da3c29/vevufokuripirogajawa.pdf
- https://bliznacite.com/files/gupinupowugikudolupuzilo.pdf
- http://apisicul.com/userfiles/files/44497844710.pdf
- http://mnarch.it/userfiles/files/kitexemabavipigut.pdf
- http://kledingindex.nl/images/uploads/ponujokopefun.pdf
- http://selmanoglusigorta.com/userfiles/file/datejufizajigixizerokidam.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/b5b1c84a912fb07a16a13713242b25b4/10540199191.pdf
- https://kaptenhoki.net/contents//files/61216839888.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/36c949b9367cc448b745bf2225373bc7/24276537892.pdf
- https://wittnebel.dk/file/rewapepenir.pdf
- http://revucue.com/ckfinder/userfiles/files/48432002315.pdf
- http://bestbuyfromindia.com/userfiles/file/43657745423.pdf
- http://zonweringnederland.com/ckfinder/userfiles/files/87979017209.pdf
- http://library.nesdb.go.th/ic/admin/ckfinder/userfiles/files/woxed.pdf
- http://writtenmail.com/upload_images/file/82714842716.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_off0000b4d1.binafc56ad4491d52cd37f5e8c09951ed46711c0c9887cfd548d51368ebb977f316 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4D1 | 11192 bytes |
font_01_sfnt_off0000ce8c.binc3d0e8b52a9e8d4ad8257d1b95f62de2edde4cd17406947c316a262d3ccb6ea3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE8C | 14364 bytes |
font_02_sfnt_off0000f214.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF214 | 16792 bytes |
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