MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are the primary indicators of compromise, directing users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 6
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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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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://allytemp.ru/uplcv?utm_term=4+types+of+gears
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/l73s2tu1b8eovlevl4uehq4cu2/buxal.pdf
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092268218120---73337727721.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/20da65f9829756686bc809855c97d932/tonusotomupom.pdf
- http://longarmacademy.net/fckeditor/userfiles/file/fofapewuwiga.pdf
- http://bahattinburyan.com/userfiles/file/82590055002.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/26eb63b4f1f989838c0963e9aa48701c/dasavozasa.pdf
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d2f86b47da1---tusegipe.pdf
- https://alice-immo.com/userfiles/file/kekit.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/060c1e066c51171b30ef0a0a78535992/ramolifevapimalat.pdf
- http://aftckwt.com/uploads/file/55915502996.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071a3b204c50---60384036801.pdf
- http://adria-ex.com/images/blog//file/95482478500.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb85b6e9d3---68937398690.pdf
- http://albino-pitti.com/pub_img/file/94698024954.pdf
- http://beijingbeat.com/contents//files/didusanogof.pdf
- http://gandolfiarchitetti.com/userfiles/files/33145891614.pdf
- http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/gopibimakobuzekulokuvo.pdf
- http://brilspa.ro/userfiles/file///wiwugud.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3fdf05f358---xatur.pdf
- http://musorcentrum.hu/files/article/file/4551499464.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074378363676---31054491103.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f421cad5b0---roropegononop.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/61fabeffdcd3c1b35647e773d1c4afc0/teduxowejikonitusipuju.pdf
- 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_off0000e6f7.binb6d5e070973e327488af431c8b4f02f38fe28c6dadfcf4823c033b3b8600db26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6F7 | 10384 bytes |
font_01_sfnt_off0000feaa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEAA | 16792 bytes |
font_02_sfnt_off000116bc.bined714ff634743e26f48c8e99e74baa12394ec7e2b4206ee4ca562d8f7782b213 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116BC | 16568 bytes |
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