MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. The document exhibits characteristics of a callback phishing or tech-support scam by presenting a lure that prompts the user to call a phone number. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it may exploit vulnerabilities or redirect to malicious sites to deliver a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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://progfin.pl/userfiles/file/44419727898.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/86p88i6ms71fci95s0t3aq45j2/53295693750.pdf
- https://estoniapools.com/contents//files/44677888100.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/03r4vhn4131k51oovorl0fm9ht/lotomerozevelo.pdf
- https://stehovani-ostrava.cz/static_pages_files/file/menel.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/8559e1560371b9892f42b944b12646d9/48569951192.pdf
- https://adsbudget.net/userfiles/file/19904550334.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddca1e4cb03---zitipazalewilalabokosij.pdf
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/b77ehrg7vnt652m8kpplmhnmr6/37127502619.pdf
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/wiwizaget.pdf
- http://aggengr.com/uploads/CMS/file/gejalota.pdf
- http://ggmtc.net/userfiles/files/silavenufolaw.pdf
- https://jajugroup.com/ckfinder/userfiles/files/85684106342.pdf
- http://rgn2u.com/userfiles/files/gupinotowoxadoxanipur.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/ad1ivhnjh6gsqrfbrd6tbb7dpf/92257625975.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f41df35af1---20516174489.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ng7kmn2jh350m78fo28dlr6fof/wizivonafozadak.pdf
- http://actlogistic.vn/upload/editor/files/15662877500.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c53d0aa409a---19672206187.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a1865e81a---gogajifele.pdf
- http://yuanyoujie.vip/userfiles/file/14627389197.pdf
- http://beijingbeat.com/contents//files/68531465587.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb8998c69e---tozetutobegawunulew.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=promo+codes+lords+mobile
- 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_off0000e53d.bin9d3b4e6e8557284335628caa0a7470eff8169a10e4cc50b07f3cc1ef28633995 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE53D | 17296 bytes |
font_01_sfnt_off0001129a.bin85f0d2b7dddb7bcb44cc9684ba11c4f8b36a5930d03e513f9046ac2d882faf08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1129A | 10308 bytes |
font_02_sfnt_off000129c8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129C8 | 16792 bytes |
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