MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many of which point to compromised CMS uploads or are part of a link farm hosted on disposable domains. The primary function appears to be directing users to potentially malicious or SEO-poisoned content through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
Heuristics 6
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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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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://crysiq.ru/uplcv?utm_term=how+to+delete+direct+message+on+instagram
- http://redemaisfarma.com/userfiles/file/gutodaforedozab.pdf
- http://altera.ukrstroyka.com/content/xuploadimages/file/zebepud.pdf
- http://mawaevents.com/uploads/file/watepuzupepali.pdf
- http://hy-sf.com/admin/upimg/file///gurubovizov.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0d20b2bd5---fotunelezodilogenaxobunu.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b862b4d8fb---tenokemizapimesi.pdf
- http://ndc-group.ru/uploads/files/gigalaxigudoki.pdf
- https://getracemirates.com/userfiles/files/32565433478.pdf
- https://trungtammatnamviet.vn/upload/files/48339077354.pdf
- https://mobspace.xyz/web/img/podborky/files/verekimuzikodif.pdf
- http://kimhoatra.com/upload/fckimagesfile/38994342902.pdf
- http://halaljones.com/uploads/files/rizusokojesuwu.pdf
- https://yodobashi-church.com/xorafuguxov.pdf
- http://bhavalaya.org/ckfinder/userfiles/files/gadoluvon.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145c3faaeff7---21839989771.pdf
- http://alacarte-husum.de/userfiles/file/22267211072.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/4a03c2a49551bce3e5126994836574ff/pawarinuwixisebilojavim.pdf
- http://koreadramatour.com/FileData/ckfinder/files/20210917_896FA474752D7B3A.pdf
- http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145324ef0e07---jikatalegezig.pdf
- http://www.egavilanes.com/ckfinder/userfiles/files/9993238570.pdf
- http://3e-machinery.ru/app/webroot/filesfiles/dajusiwamolize.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/16141b1edf2bea---gufigisijobotatigizij.pdf
- http://cambridgekapurthala.com/damana/userfiles/file/99442633461.pdf
- https://friendsofmultisport.com/ckfinder/userfiles/files/nigufivuduwani.pdf
- http://gorsilawfirm.com/userfiles/file/watuzaku.pdf
- https://ooo-kenk.ru/userfiles/file/95479269429.pdf
- http://secretsocietygroup.com/temp/vinney/HTML/userfiles/file/23152973237.pdf
- https://maria-galland.ru/files/file/tegiborovupanano.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_off0000bd20.bin2c2c216f549d4ce126216049fd00d69e6c0c8a841890959977a0f07abe432419 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD20 | 18360 bytes |
font_01_sfnt_off0000eba9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA9 | 16792 bytes |
font_02_sfnt_off000103c0.bina8dbfd97ea29b292e9d1a48e7913a0f3ebdacd78482076d6ee9af369ed2c8667 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103C0 | 10788 bytes |
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