MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with several URLs pointing to compromised WordPress uploads and other disposable hosting. The document's content, though heavily obfuscated, suggests a callback phishing lure, prompting users to call a phone number for a fabricated issue.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 http://oskarmak.com/userfiles/file/17965363701.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce4ea61584---jexegebamuvadaxurawi.pdf
- https://clifestyle.net/uploades/userfiles/file/rojodagofogafamap.pdf
- http://ldksolar-officialliquidation.com/userfiles/files/98498326149.pdf
- https://destockbaby.com/ckfinder/userfiles/files/94663877121.pdf
- http://sunriverps.com/data/editor/file/vugojibezawereg.pdf
- https://baobiachau.com/luutru/files/dulopofodosebabofoxotubon.pdf
- http://tuanayapim.com/rsm/files/28441172284.pdf
- https://allianztc.ro/files/file/bexekana.pdf
- http://www.ocptecnology.com/admin/uploaded/fck/file/86962931168.pdf
- http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/2365697132.pdf
- https://mercerapparelss.com/userfiles/files/navanali.pdf
- http://tofuyatogo.com/uploads/files/dosadaputovusaw.pdf
- http://goraku-sangyo.com/userfiles/file/25134101886.pdf
- http://thueotodn.com/uploads/image/files/niliritutada.pdf
- https://muratay.nl/userfiles/file/wokuzolonudakuzeboku.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/161319a8fb981f---nukaxojuzopes.pdf
- https://inprovit.com/ckfinder/userfiles/files/61387164592.pdf
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bebda172ef---pipeku.pdf
- https://bisnismedsos.com/userfiles/file/zedad.pdf
- https://edubox.mn/uploads/users/0/files/20991435203.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=reface+face+swap+video+pro+apk
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca6f.bin071bac7a3a90310621307d68123817e30fba7c89f9e5021c4391eb43bd8b9137 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA6F | 16132 bytes |
font_01_sfnt_off0000dfe7.bin785fa01775fd9a53303eca5348d4ea24281ee900759bf70d9fc5d7c7a634fa80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFE7 | 10656 bytes |
font_02_sfnt_off0000f886.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF886 | 16792 bytes |
font_03_sfnt_off00011098.bin5e6d5575b993d9f563a838eae3495730040db2a751b5885ec139c4c6fe1cbe32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11098 | 23232 bytes |
font_04_sfnt_off00014c12.bin228445a3744f13af4bf84041e55802a923554d86926eb0745489ea117e4ab105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14C12 | 1888 bytes |
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