MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing multiple links to external websites, many of which point to compromised WordPress installations. One high-severity heuristic indicates a PDF link to an algorithmically-generated URL, and ClamAV detected it as Pdf.Phishing.Trojan. The presence of these links suggests an attempt to redirect the user to a malicious site, likely for phishing or to download a secondary payload. No scripts were extracted, but the PDF structure and URL patterns are indicative of a malicious lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://medvor.ru/uplcv?utm_term=that%27s+what%27s+up+edward+sharpe
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b9f654edcc4---koxagagimufufiramer.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160738f5763c4e---rolivelaganateg.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f71860534---tolevedexejewijuruvitogi.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4090048fcf605e792f3fce685646f002/59841123006.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/jg05738adoj9bl1q2k98evae71/47318367338.pdf
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/2060a3fbae629182f7877bed6224818a/vapokemirojofokoxeri.pdf
- http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087f4a4ccaa6---wevoxutivijifenosi.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/10700776a9c452b807922e1cb981055d/40329842383.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/vik64oh40vt7bok3lp50af8lj3/4476434943.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/jhekvcu2rv2dlb4ilfuqf4idc2/kakosezas.pdf
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/16098a2b934d11---83162036504.pdf
- https://karinbentum.nl/uploads/file/49154713078.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a9247190536---73614385493.pdf
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/631144343b72570ade3d9b68d5cc5c52/rupetafirufewuganonunog.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081de3e26027---pitinibovutezitidulirepam.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/6053dc99d23462bdf68c5f03099b1856/vorarozivu.pdf
- https://traveletrust.com/basefile/traveletrustcom/files/81629216580.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8c26e4f61---11183397431.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609213ece62ae---58397357076.pdf
- https://observatoire-omic.org/documents/file/47717263019.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb6496589b---22773796429.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//91812838278.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_off0000d245.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD245 | 16792 bytes |
font_01_sfnt_off0000ea57.bindd906aa7d2142f0917c7bc19d2104f8f4fa5ea9ff8cf8aeede74b31c9fba8890 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA57 | 17928 bytes |
font_02_sfnt_off0001194e.bin4a2663255bc6f7e6af7504b57411ead545ba4ea8dc92b28a75ec59eccfc917aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1194E | 10312 bytes |
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