MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The file functions as a link farm, embedding numerous URLs that predominantly point to compromised WordPress upload directories, likely serving as a lure for phishing or malware distribution. The presence of many distinct hosts and the use of 'utm_term' parameters suggest an attempt to obfuscate the true destination and potentially track user interactions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://philabc.ru/uplcv?utm_term=present+perfect+with+reflexive+verbs
- http://akinmedikal.com/uploads/file/1906308403.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/99990793254.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/63e4338270f5a37c992143704e0da398/43535023919.pdf
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/2991cfc3addd35c7a6a83ee0f4ac9876/dikezep.pdf
- http://dok-vo.ru/userfiles/file/32261648761.pdf
- https://aduanaldelvalle.com/userfiles/file/52409840264.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160afb645ed795---91820799455.pdf
- http://www.adarshvidhyasankul.org/userfilesfile/kizotegez.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e836037527---nalovunivunalupifasodom.pdf
- http://tubietelbar.hu/uploadfile/mibaguwipujufidejixi.pdf
- http://3bbb.fr/ckeditor/upload/files/21905287236.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0d990ecef---vigaginudakaroxodipaxoti.pdf
- http://overtonnation.com/clients/f/f9/f97855507a39dfa58978186db9bff07a/File/kusokevozotitiluxul.pdf
- http://monkey-do.net/userfiles/file/57850359775.pdf
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/6c0d4b0e003ae8b924ef6301729f7329/tibumubutozofo.pdf
- http://newo.ru/files/files/85824047970.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5067ba46b0---panakegagozazifa.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160996934d736a---21085812290.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/06g60tlkkrmfm5csk7s470c6f7/91230060834.pdf
- http://analogsys.com/uploaded/file/559318366089a44561a9e.pdf
- http://westboroughhigh76.com/clients/b/bc/bc4984db1d461a603911d7e4814e3e59/File/72034799377.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_off0000e5ac.bina0d58e35517efbeda2ff090a3e6a2dd9b9656dfe5f479660954571e20f2eb0f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5AC | 18484 bytes |
font_01_sfnt_off00011441.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11441 | 16792 bytes |
font_02_sfnt_off00012c58.bind3d05cee740d314c72b1259e7f03f61dcf48ce6372dc29ce60f90150d6fbd926 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C58 | 10692 bytes |
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