MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it's a link farm and a callback phishing lure. The document body is heavily obfuscated, but the presence of external URIs and the callback lure heuristic strongly suggest a phishing attempt. No scripts were extracted, but the PDF structure itself is indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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://clubesquilacoma.com/uploads/files/bowefuwibixasoniribakeb.pdf In PDF document text
- http://liderzy.natura2000.pl/imgturysta/files/82662882940.pdfIn PDF document text
- http://gotween.com/userfiles/file///xelona.pdfIn PDF document text
- http://poorclarescork.ie/images/9814678213.pdfIn PDF document text
- https://zippy-inc.com/app/webroot/userfiles/files/74081268325.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/61437896637.pdfIn PDF document text
- https://xn--fct5g39pjpo.tw/upload/leakstop/files/1436403008.pdfIn PDF document text
- http://goldenbaycruisesagent.com/userfiles/file/zevase.pdfIn PDF document text
- http://prmakeup.com/Image/files/53065107673.pdfIn PDF document text
- http://asbu.net/uploads/FCK_files/file/30943119512.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/161338d8d89a42---28237408930.pdfIn PDF document text
- https://rumputhijau.com/contents/files/14442806797.pdfIn PDF document text
- http://thehedgerowchronicles.com/ckfinder/userfiles/files/kovejawezexuzurexafosude.pdfIn PDF document text
- http://abovomedia.hu/_user/file/jabuboworakifewibitej.pdfIn PDF document text
- http://gymostrov.eu/gymostrov/userfiles/file/86150309314.pdfIn PDF document text
- http://windowsplusllc.com/ckfinder/userfiles/files/tobejezukeposudeb.pdfIn PDF document text
- https://himalayanthailand.com/image/upload/File/bumobiki.pdfIn PDF document text
- http://hcbarrett.com/user_area/file/wabatoru.pdfIn PDF document text
- http://prefinancovaniehypoteky.sk/res/file/liposekelukorazefiruj.pdfIn PDF document text
- http://sity-luxe.ru/userfiles/file/misugijapa.pdfIn PDF document text
- http://thamcohoaian.com/webroot/img/files/27116246710.pdfIn PDF document text
- https://farmacieitaliane.com/documenti/file/6496915182.pdfIn PDF document text
- https://hogozaty.com/ckfinder/userfiles/files/zewipatasivojusajuzav.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=kingroot+no+root+permission+feature+unavailablePDF link annotation
- 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_off0000dc50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC50 | 10996 bytes |
SHA-256: 6be1b2805e21e051ed6ff4d645368c59d0c7832f3bb42f635f457a898283499a |
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font_01_sfnt_off0000f5a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A9 | 19240 bytes |
SHA-256: 56c7ff9a564cdea1fef3dbdc54b472adcba8b6f8c3e3ce8baa28fce6549b2eb9 |
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font_02_sfnt_off000127f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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