MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves luring users through a malicious attachment, likely via spearphishing, to access these redirecting links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://nomylo.ru/uplcv?utm_term=adverb+of+time+worksheet+for+grade+4+with+answers
- https://wita.lt/images/files/korevipisitej.pdf
- https://myphi.biz/nbloom/fckuploads/file/lawivebufonuxizagaji.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd34fa82ad---88093707463.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090078b3161e---regojolijokinari.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/niie7lp5br0kfq84u82oo6ifsd/44744502683.pdf
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/60084978315.pdf
- http://www.hydro-tg.pro/upload/file/32374011463.pdf
- http://mgocsm.in/userfiles/file/vugupoda.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/74bc9090981d2501425e874ce3e8d557/14830281914.pdf
- https://kisikana.hr/userfiles/file/88724035085.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ce797126841---1725175897.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/0dbfejg8ga4ikma84frf5vrur6/jizewe.pdf
- http://autosklo.sk/pictures/file/10536756981.pdf
- http://domeinbeverdonk.be/assets/files/file/japugemeli.pdf
- http://snap-drone.com/userfiles/file/90286041557.pdf
- http://smartraoptics.com/fck_filemanager_upload/file/96897289067.pdf
- https://cplastik.cz/data/cms/file/47355752254.pdf
- https://astek-telem.fr/userfiles/file/rigumaga.pdf
- https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/7e7a10c24db6ba90391fdb0f7adf08de/banununujaw.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/5cf996ee66b243c604e558fbd3658454/gixutara.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081589c7e510---zowofewogikime.pdf
- http://sammyuriasproperties.com/userfiles/files/20255366722.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/2hf8ievsak2119ngpmovrarg40/xoxokob.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_off0000f129.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF129 | 16792 bytes |
font_01_sfnt_off00010940.bine1de698bd86be0f402555b3e61f46bf3189b789de36e4d37ecff158fc696af48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10940 | 11196 bytes |
font_02_sfnt_off0001232c.bin1eac8cf146fc22c2ee83fec4fdbe5dfdc7da042a24bec3e31023d117a502c4a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1232C | 16780 bytes |
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