MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress installations or disposable domains, suggesting a phishing or credential harvesting campaign. The document body is heavily obfuscated and contains non-readable characters, indicating an attempt to hide its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://garglob.ru/uplcv?utm_term=defining+and+formulating+the+research+problem+pdf
- http://rayanchem.com/d/files/rulisel.pdf
- https://lienlacanien.com/img_pages/file/8602600005.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160fdb0612eac1---wutuvepuxupelutip.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e0fd49ec5c---33446468068.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad3517ed257---peposilunorov.pdf
- https://alzubidi.com/userfiles/files/zujubefogugerefeki.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c782e2bacd---5290439337.pdf
- https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1a035032f---nerorapenasuw.pdf
- https://canevastoilestjean.com/upload/editor/file/51467398306.pdf
- http://firegallery.ru/img/upload/53238236179.pdf
- http://gewald.ru/content/Files/votigizadolikonupikokuxo.pdf
- https://hunglivet.com/uploads/files/202109010711208249.pdf
- http://files.ibiza-ferien.de/file/15445468974.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f768cb2f1dc---77436056113.pdf
- http://lokalizacja-gps.pl/userfiles/file/wazelilova.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609312c6e7fd0.pdf
- http://bagiez.de/userfiles/file/divute.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/crkccnnpqamut45hi1rl5otshl/65421146561.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/cr0oq4pqd1h8j1ii8rjojuge4q/13916560498.pdf
- https://thefertilizerequipment.com/d/files/25418958823.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805958821bc---69089639446.pdf
- http://comp-art.ru/userfiles/file/2896987458.pdf
- http://morpheus-architects.com/file_media/file_image/file/76122423950.pdf
- http://podhoru.cz/userfiles/file/94111199897.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160aa2c3f6f486---97516204526.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_off0000f274.bin47ff598518fc46e27e0520ab7acea96c16f612972c49972559252f1e12d3394d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF274 | 17948 bytes |
font_01_sfnt_off00012102.binc4b769112b4ad303e7f9af7809f940068997e4f5014e1a6ebe24e4a290dbcb6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12102 | 11308 bytes |
font_02_sfnt_off00013afa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AFA | 16792 bytes |
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