MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The embedded JavaScript is likely used to facilitate the redirection or download of additional malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://tungafilm.com/dorceiys/ckfinder/userfiles/files/55044400247.pdf
- https://shiphangnhanh.net/uploads/image/files/84937751216.pdf
- http://teamhead.net/userfiles/file/povon.pdf
- http://fantalife.nl/userfiles/file/furoligisowu.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/2681fmalov9jdi88150b9schu0/xoxalurutetizizupek.pdf
- https://adsbudget.net/userfiles/file/jutinobevuginakanodala.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad8c9f33e1---39824201938.pdf
- http://to-kajihan.net/js/upload/files/59180493940.pdf
- http://tvoirostov.ru/ckfinder/userfiles/files/15790924859.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607166644d958---26893318340.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/d76545534c24d0b2e46e858765d7de30/sesugosewexemik.pdf
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/a4b0f407c19b4fdf74369338ee91d4ff/pidafirifomizirolabapu.pdf
- http://valsadindustries.com/userfiles/file/90866649599.pdf
- http://vivaibonomo.it/userfiles/files/mujubobanazetaji.pdf
- https://wecareprogram.org/images/file/28197519602.pdf
- http://itfkarnataka.com/cvsprojects/SSK/Source/2.0.0/images/files/neturaledaxisigawi.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c3cde161b---bonisijawigirewuxuwibaz.pdf
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/cfab1114ca9884720629caf93c1ab5be/tebugivakoj.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4f18308693---podinikidisarususufizafa.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=mazda+rotary+engine+manual+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_off0000c00c.binfcd07a08f26024834d2f5a6eedf8fd769990e99d38b238a518c443ee5eea16d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC00C | 10940 bytes |
font_01_sfnt_off0000d933.bin06620adf6137d38561fe13948cf0dc6eb570923a34aee58eab58371529b88515 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD933 | 17156 bytes |
font_02_sfnt_off00010576.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10576 | 16792 bytes |
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