MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many embedded URLs pointing to potentially compromised websites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests it's designed to redirect users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614232891c126---36203492207.pdf
- http://centroolosprato.it/userfiles/files/batixopifabesafip.pdf
- https://alquimia.in/admin/fckeditor/editorfile/makugisiz.pdf
- https://gogift-it.com/userfiles/files/pukipoxokerebuwis.pdf
- http://jingluo.net/uploadfiles/files/75468117627.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613032e40654e---11319150969.pdf
- http://ijiantu.com/filespath/files/20210921144900.pdf
- https://ntct.dz/ckfinder/userfiles/files/zeruvafufexonir.pdf
- http://imosa.asia/uploads/files/202109071255253139.pdf
- http://urparitet.ru/admin/ckfinder/userfiles/files/fukadipuxetunimem.pdf
- https://12tiga.com/contents/files/mozosemotujofozowajanu.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/loj6pqu4mq848lahm3aaosliq2/vumifazos.pdf
- http://kapalishakti.com/ckfinder/userfiles/files/tekujugaremisumebi.pdf
- http://baheth24aqari.com/ckfinder/userfiles/files/wabamagijaxikijoluxogado.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a2f85c2f4b---14246654609.pdf
- http://backkwang.com/userData/board/file/91671641265.pdf
- http://daisytalavera.com/userfiles/files/52539246920.pdf
- http://sunriverps.com/data/editor/file/74196646560.pdf
- http://larben.cz/media/images/upload/file/monajife.pdf
- https://soudureornementalelauziere.com/upload/editor/file/zilomixev.pdf
- https://equinox-e.com/upload/UserFiles/file/gagelatu.pdf
- http://theexplorerthai.com/userfiles/files/25329499518.pdf
- https://redac.ch/upload/guxikose.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=top+launchers+2021
- https://mediaget.com/userfiles/files/gubomijexuxotasan.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_off0000aee6.bin921029b27a7282c16f5bb42d5b1dfce8ff454d6b739b8d69178e2176e1aa7941 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEE6 | 10636 bytes |
font_01_sfnt_off0000c745.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC745 | 16792 bytes |
font_02_sfnt_off0000df57.binf899f89853898e452d0d94cac3ebafc32ad7fd612ef9c1a08a09587ae0333df8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF57 | 15756 bytes |
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