MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of numerous URLs, including those with 'utm_term' parameters, suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://crewmak.ru/uplcv?utm_term=best+platform+to+watch+movies+online+free
- https://museuminiaturesbesalu.com/files/53950988345.pdf
- http://bong-dem-long.org/upload/editor/files/62546202734.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131ab6b1663e---zaripiwarumimomenonuz.pdf
- http://minhquoc.vn/ckfinder/userfiles/files/98370467489.pdf
- https://oglethorpeclub.org/~oglethor/UserFiles/file/84841788989.pdf
- http://saipanbooking.com/FileData/ckfinder/files/20210919_04DEFBEE2D40C637.pdf
- https://thuaphatlaihoanghuy.com/uploads/files/62442647258.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/bsnpvdkna1aiatb7ft3pckj1n8/49405370468.pdf
- http://velomagazin.hu/UserFiles/file/8362811284.pdf
- http://mingmitrcoffee.com/user_img/files/73915006920.pdf
- http://grandioso.asia/editor_upload_image/file/84672582775.pdf
- http://babyshelter.net/assets/upload/files/tutanijetinapabolinutobe.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/be0c1468efc65923e16111fd8efe37a5/lalufataludujitof.pdf
- http://www.afurg.com.br/assets/ckfinder/userfiles/files/83825185262.pdf
- http://zenobiacultura.it/userfiles/file///60852167948.pdf
- https://sambelteri.com/contents/files/15787824479.pdf
- http://studiorumeo.it/userfiles/files/bavuvafuwifemege.pdf
- http://benthanhsgfarm.net/images/uploads/files/vixibusujuzuloxu.pdf
- https://taxforce.nl/userfiles/files/fuzaxojizomeku.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/bb0428d564b08031455c57221c83029a/digej.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614af1c91a77d---bisosunoro.pdf
- http://tv-kitchen.ru/files/files/bitivuj.pdf
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1614b2524d25db---napefopevene.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_off0000af4a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF4A | 16792 bytes |
font_01_sfnt_off0000c761.bin7d1e02c84a6628c0e39593ec3686530fb1d4221bb8026fb7c382aa841b2dfb83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC761 | 10948 bytes |
font_02_sfnt_off0000e0b1.bin2d147f2e344aad40edf6c18151171cb36bb7ef9dde73593ef192b480b3ebc0c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0B1 | 15860 bytes |
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