MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting, all designed to lure users into clicking a link that impersonates Facebook. The primary goal appears to be credential phishing, directing users to the URL `https://archism.ru/uplcv?utm_term=overlord+light+novel+volume+14+chapter+1+part+5`.
Machine Learning
- Nyx PDF Classifier malicious score 0.9816
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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://archism.ru/uplcv?utm_term=overlord+light+novel+volume+14+chapter+1+part+5.
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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://archism.ru/uplcv?utm_term=overlord+light+novel+volume+14+chapter+1+part+5 PDF link annotation
- https://www.ccs-corporation.com/ckfinder/userfiles/files/mugumumadopitiwi.pdfIn PDF document text
- https://dogathermalhotel.com/resimler/files/mozok.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/rdf9ua3dvd7kvcicc2f6qcn4co/88970223682.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609496b557de2---42122452035.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160e5c318c7ce5---javamesejuxej.pdfIn PDF document text
- http://megalaserasia.com/upload///xusotodokibitevoguvugezi.pdfIn PDF document text
- http://nsfeed.com/_UploadFile/Images/file/nununa.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2bdc66419---zivonafodeg.pdfIn PDF document text
- https://nisahanpin.com/calisma2/files/uploads/pefubopij.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082be95116cb---10500412552.pdfIn PDF document text
- http://kibbkw.com/uploads/file/gawafasakoguparamusaraw.pdfIn PDF document text
- http://ping-property.com/user_img/files/kabesegirewowaxa.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/2hsn7tbsc2iihd005gbbm8k1p2/jolikomoduborova.pdfIn PDF document text
- http://garderoba.sk/images/_file/nabugufamotavasomozamo.pdfIn PDF document text
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f631254f9a4---33145997286.pdfIn PDF document text
- http://zaun-produzent.de/userfiles/file/tetifonazujubotomoxineve.pdfIn PDF document text
- https://bodegoncriollo.com/userfiles/file/37708223068.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c77c46c1fbf---33640401540.pdfIn PDF document text
- http://drivingschool-brno.eu/files/danaxinonud.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/fb4700c5a8c64a618debb6a86f105878/15619728357.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803d1e28af0.pdfIn PDF document text
- https://planet-for-events.de/userfiles/file/pedada.pdfIn PDF document text
- http://granitemountainranch.net/userimages/92604582997.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160ddbcddcffc6---suvafeditegepimeziromo.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d39328071---64585693700.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/d32f54f009bf0cc1227eb44cb6af1f56/54267161728.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013096.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13096 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000148a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148A7 | 16316 bytes |
SHA-256: ab6694c1d995f04cbbff2defaf944e51eca158aa5fe5149dcaa35584a4cb7719 |
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font_02_sfnt_off00015ee9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15EE9 | 11248 bytes |
SHA-256: ae9f36f4a19bc5192a4a36ab5c4a69d949a4c8f46cbce37a2be4e9d42c7f044f |
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font_03_sfnt_off00017904.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17904 | 19224 bytes |
SHA-256: 7268f5a2c742f9aebcac2328533d0435fa255fecff02aac1d145cf5facd71c56 |
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font_04_sfnt_off0001ab45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AB45 | 7920 bytes |
SHA-256: 3e1a1b3d797dc96897a48280b4be93dc232819a35d8bd4b7cd8d3bd8adf36248 |
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