MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The presence of embedded JavaScript and a large number of external links, many pointing to compromised or disposable hosting, strongly suggests an intent to redirect users to malicious sites. The heuristic PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM further supports the malicious nature by identifying links to compromised WordPress upload storage.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://drafthe.ru/uplcv?utm_term=use+android+phone+as+gps
- http://www.aunay-sous-auneau.fr/ckfinder/userfiles/files/sedazebanulaloxivonufap.pdf
- http://cukierniabrzezinski.pl/www/artizam/fck/file/baputabomonunetodufememu.pdf
- http://abwingssuffolk1.com/uploads/files/sisov.pdf
- http://cokhihoangvinh.com/uploads/userfiles/file/63411035969.pdf
- http://sunpix.ru/img/lib/file/19310278757.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/cc0d47d7bc8c1ed8611e62b309562e0b/5635131175.pdf
- http://schokoladenfontaene.de/idata/pumerixowuziwet.pdf
- http://divapharma.com/uploaded/file/59253022185.pdf
- https://ntct-dz.com/ckfinder/userfiles/files/nawifanoxujuxexogi.pdf
- http://schokozentrale.de/idata/zesevamonaxanupedukagut.pdf
- http://romanakladatelstvi.cz/userfiles/file/47923114749.pdf
- https://christianklein.eu/Quansis/ckfinder/userfiles/files/56822394958.pdf
- http://gioiacompany.net/images/upload/file/sunafes.pdf
- https://ajwatravel.com/wheelmarine/userfiles/file/rogunirezirivitu.pdf
- https://www.fibertech1.com/my_content/js/ckfinder/userfiles/files/5170405306.pdf
- http://khocabien.com/uploads/files/vidujemalisejoji.pdf
- https://szabobuszberles.hu/files/files/dimiragedenozutinav.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16142f4616a793---rijegidovoxuburidil.pdf
- http://worldofpacifiers.com/editor_uploads/system/files/wufagazafumogexiravas.pdf
- http://www.awakohchang.com/image/upload/File/itaroxorupepadaja.pdf
- https://nicklason.se/ckfinder/userfiles/files/96003583526.pdf
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/5aa0df6d152260ec7e72e65682282161/65681732600.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_off0000b043.bin0879f3f22c8da0d2b3895bc3a8aad526a6fc90baa5ed4dbd1d5df227534edbea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB043 | 10536 bytes |
font_01_sfnt_off0000c7ee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7EE | 16792 bytes |
font_02_sfnt_off0000e000.bind658a89375693970610e9325f998c9d877bac17902ca9bcdb3d0a8ffbefe034e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE000 | 14592 bytes |
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