MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous URLs pointing to various domains, many of which are structured as link farms for software downloads, a common lure for phishing or malware distribution. Heuristics indicate these links are often hosted on compromised CMS uploads or disposable hosting, suggesting a pattern of malicious infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://huntic.ru/uplcv?utm_term=super+mario+game+free+download+for+windows+7+32+bit
- http://ergakiland.ru/files/files/84379604631.pdf
- https://pnlcoach.com/misc2/file/
- https://onderhoudnlgarantie.nl/upload/file/zodoremeboleturil.pdf
- http://phannhan.vn/files/usersfiles/files/xexisamabuva.pdf
- http://www.photonics-science.com/ckfinder/userfiles/files/bovefetabikor.pdf
- http://kcntanduc.vn/img_duhoc/files/biwazaxulitefuvexisal.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d0c78c6bcb---xomonisezis.pdf
- http://jrpst.pl/userfiles/file/didilunajajodukuvikedasol.pdf
- https://poganyvolgyi.hu/userfiles/file/pepigakifafoxumazuze.pdf
- https://fivetc.net/uploads/files/gibupuxa.pdf
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613527845646e---fiwinerurike.pdf
- http://goldenteriyaki.com/uploads/files/pefijirakenasamosob.pdf
- https://millinerandassoc.com/files/file/41895813462.pdf
- http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pexedowuvaxilaw.pdf
- http://decorstore.eu/upload/file/53418821480.pdf
- https://pontus-sd.eu/uploads/file/sisizorolufaxorev.pdf
- http://happy-land.hu/editor_up/79066404138.pdf
- http://gediklimakinahidrolik.com/resimler/files/vajiwavos.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16145b2ad4cdcf---rotag.pdf
- https://onsale.social-push.cc/data/fckeditor/files/36506252263.pdf
- https://dubaimotorcycletours.com/uploaded_images/files/zagekewademuber.pdf
- https://biharlokmanch.org/userfiles/file/11737872088.pdf
- http://modaxch.com/userfiles/files/70203931397.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/25138645a8ee9af7bbaf03d9b91e13f4/57353593315.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_off0000dafa.bin50344674f9ef2106f5934b14ca2939118c5a291d8134b24f322e28f6228e1ea5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAFA | 16400 bytes |
font_01_sfnt_off00010554.bin96729638685b588a8704aff7a084192346bc535eb5239ad1c834820c272f8ebf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10554 | 11584 bytes |
font_02_sfnt_off00012094.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12094 | 16792 bytes |
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