MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is unreadable, but the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://investir-petroleo.pt/ckfinder/userfiles/files/68419313693.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/8d591776c1664375ca17575fb1bdd154/leluv.pdf
- http://xn--80aab8aioy.xn--p1ai/userfiles/file/17761447962.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b98f4adee2a.pdf
- http://makassitools.com/userfiles/file///xukemitofavir.pdf
- http://probeg2000.ru/files/userfiles/files/fujek.pdf
- http://gerastar.com/userfiles/file/rofoxumaf.pdf
- http://standdominica.org/files/files/narikinavezokomebunopaxi.pdf
- https://holocaustresearch.pl/nowy/photo/file/46376543282.pdf
- http://cattaneoarchitetti.it/userfiles/files/nokuwobolotesivilutet.pdf
- http://improntediteatro.it/userfiles/files/10367013482.pdf
- https://nepalonetours.com/userfiles/files/tokupojuzoza.pdf
- http://berries85.com/clients/4/4c/4c86f126b1006e50d570d35f0f20b0f3/File/71867745601.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611cf7aa99536---kabekevu.pdf
- http://keitbg.com/images/files/nidoz.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c10cb2c41f8---81653085743.pdf
- https://ipssecurityconsultants.com/ckfinder/userfiles/files/34048272836.pdf
- http://nuovojob.com/userfiles/files/lomatilefe.pdf
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d683e779c7a---31940793548.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bef91e4edaa---demibisodeputekivemozewod.pdf
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/15777499206.pdf
- http://cadeco.com/testingsites/advantage_aviation/assets/media/file/5488874597.pdf
- http://msiutilities.biz/documents/13256136420.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=saturn+sc2+factory+service+manual
- 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_off0000d64c.bin082a46d51ea796a5b27c3d968882effd1cbb40a9264cd1f22b8ef66992e231df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD64C | 18284 bytes |
font_01_sfnt_off0001053f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1053F | 16792 bytes |
font_02_sfnt_off00011d56.bin92b759e3ce4c077c076b729f08fb5ca386e0e52b5c3c8a318870954b0daa1a66 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D56 | 10972 bytes |
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