MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to various external URLs, some of which are hosted on compromised CMS platforms. The presence of numerous links, including one with a 'utm_term' parameter suggesting a tracking or lure mechanism, points towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://irlanc.ru/uplcv?utm_term=latest+truecaller+premium+apk
- http://vincitydata.com/uploads/ckfinder/files/lamogonadi.pdf
- https://carcable-bg.com/uploads/pictures/files/veporaxirejesipobopuzab.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/240bd9fa8aa0cc679466382198cc88df/momamojemujufi.pdf
- https://contact-house.com/fckeditor/upload/file/17009322637.pdf
- http://caphegiabao.com/upload/fck/file/59758648603.pdf
- https://www.gullyracing.it/admin/ckfinder/userfiles/files/zibamanunopovodal.pdf
- http://intelekt.biz/uploads/pages/files/98911836681.pdf
- http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/51556817305.pdf
- http://ngnjl.com/userfiles/files/suxibupixirazesinibi.pdf
- http://xn--h49al71atridzo.com/userData/board/file/37098205645.pdf
- http://lso-msm.com/userfiles/file/nomatiweju.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f7bce9f28---gevidoxotozofipaxotalomol.pdf
- http://mbjarrahi.com/UploadedFiles/New/file/rifojibome.pdf
- http://goldenstarhotel.vn/images/uploads/files/14685785037.pdf
- http://mega-treid.com/userfiles/files/girukiw.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/161313b2566575---97720777000.pdf
- https://tiemhoamo.tiemhoahaibara.com/data/dulieu/files/59956467001.pdf
- https://xetnghiemadndanang.com/upload/userfiles/files/26349832351.pdf
- https://nmg.lv/img/uploads/files/dotilolajif.pdf
- https://soudureornementalelauziere.com/upload/editor/file/74901078986.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613908384ea4b---58170082772.pdf
- http://portaldeaquidauana.com.br/ckfinder/userfiles/files/sokodilovizolafufejajilez.pdf
- http://e-skala.pl/userfiles/file/milarizet.pdf
- http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/75912702266.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_off0000baa9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAA9 | 16792 bytes |
font_01_sfnt_off0000d2bb.bindb11e457dc198d24464f887577f64b35b28f12810e21ba048e81011ecd5afc7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2BB | 17184 bytes |
font_02_sfnt_off0000feab.bin33ae5f69c369661fd3be0faf821477e302d6ac36c4133da6e94257e50f3a029a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEAB | 10460 bytes |
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