MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs and is identified as a link farm hosted on disposable domains, indicating a likely attempt to redirect users to malicious sites. The presence of callback and QR code lures further suggests a phishing or social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 https://catamma.ru/uplcv?utm_term=gaming+vpn+mod+apk PDF link annotation
- http://ncfc.com.tr/ckfinder/userfiles/files/28569623987.pdfIn PDF document text
- https://www.whoamiandwhyamihere.com/ckfinder/userfiles/files/28580093808.pdfIn PDF document text
- https://bisleriwheel.genefied.co/ckfinder/userfiles/files/xozutenusojezofixuvi.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130ae4fc0ee6---zukaz.pdfIn PDF document text
- https://gamedunyasi.com/calisma2/files/uploads/gewadedovonubomiwo.pdfIn PDF document text
- http://marklaliberte.com/fckupload/file/vegejijudafu.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/8d90abf0ffb37a2988ea4aa2b77e739e/72021117464.pdfIn PDF document text
- http://archetipoingegneria.it/userfiles/files/24036628493.pdfIn PDF document text
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/lumuzobixateludidewinit.pdfIn PDF document text
- https://rgcsmt.org/ckfinder/userfiles/files/77569594688.pdfIn PDF document text
- http://studiosiriosrl.it/userfiles/files/zujeko.pdfIn PDF document text
- http://em-mould.com/ckfinder/userfiles/files/50768959937.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vemerapefimapisunuj.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/sesajitajibotojoma.pdfIn PDF document text
- https://hanyauntuktesting.com/contents/files/vewilanusepof.pdfIn PDF document text
- https://85097781.com/upload/files/litodikureropefabikujised.pdfIn PDF document text
- http://stphilomenaonline.org/userfiles/file/63251705566.pdfIn PDF document text
- http://skupka54.ru/upload/m/81889908267.pdfIn PDF document text
- http://zhongyuemedia.com/filespath/files/20210905013408.pdfIn PDF document text
- http://wawabed.pl/uploads/userfiles/file/14684769664.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/1058539742.pdfIn PDF document text
- http://constantemails.com/userfiles/file/1630835018dovevenofu.pdfIn PDF document text
- http://rudolphi.nu/userfiles/file/tigedemidoz.pdfIn PDF document text
- https://mvmdigital.gr/files/files/zevukunativijamo.pdfIn PDF document text
- http://chinawin-consult.com/userfiles/24522147439.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b9a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d1ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1BA | 10388 bytes |
SHA-256: 078f9b4000264cd5c31c81f433f74f455d70b05e3f0aa190b21b85f1c64d8fb4 |
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font_02_sfnt_off0000e8f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8F1 | 15116 bytes |
SHA-256: c1bfec64b397405731e97655516f209df67e4bebe9a0bccb3c3080adf898fd1b |
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