MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URLs, many of which are hosted on disposable domains or compromised CMS upload directories, suggesting a link farm designed to lead users to malicious content. The presence of urgency lures further supports a phishing or social engineering attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://synerhu.ru/uplcv?utm_term=current+issues+and+enduring+questions+12th+edition+free+pdf
- http://geologocarmignani.com/userfiles/files/489328095.pdf
- https://rgcsmt.org/ckfinder/userfiles/files/rawiletubexulobowizega.pdf
- http://ydyb.com/filespath/files/20210918232108.pdf
- https://bodzlomu.com/userfiles/file/49093391316.pdf
- http://vxclouds.com/userfiles/file/6176966982.pdf
- http://korea-seals.com/ckfinder/userfiles/files/89689590343.pdf
- https://drddvichitra.com/userfiles/file/50311697948.pdf
- http://burmeseburmilla-allevamento.com/userfiles/files/68930759589.pdf
- http://madmojo.com/fckupload/file/33122542721.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/tozanu.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/b56868e5d40311b2e10bd31595c6e486/zumenum.pdf
- http://kibunajcc.com/ckfinder/userfiles/files/94529081591.pdf
- http://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/103431325.pdf
- http://togul.org/sites/default/files/file/xiruli.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/bd792b5d97ed82a7b67bd17d90f9d128/sinadedadogivativavuza.pdf
- http://aaaexpressheating.com/userfiles/file/ruzivimunewuz.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/f60d6290b8771d817c66b3d93cb6516f/lugidavonijake.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1613101aec06b3---bagopalumiluligadijava.pdf
- http://chandigarhdatarecovery.com/files/file/17960428619.pdf
- https://kitchensofdiablo.com/upload/file/5289053692.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614138bbb2454---39440380369.pdf
- http://artediapharma.com/upload/files/60194631440.pdf
- http://betheaskssd.com/flash/betheaskssd.com/file/vajotuxizivujazoj.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_off0000e261.bin943b2ecb985ff35511ad8d8733c16df43af3f7f3d2002af955849b1312f6365a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE261 | 18260 bytes |
font_01_sfnt_off00011243.binf7b2bbdd87b80e30968f0def49fe9c88a3674e2cef3c664c492ab0ac2ffa3247 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11243 | 11180 bytes |
font_02_sfnt_off00012bef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BEF | 16792 bytes |
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