MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is a PDF document flagged by ClamAV as a phishing trojan. Static analysis revealed numerous embedded URLs, many of which are hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 http://mebco.ru/images/file/zejosuvofor.pdf
- https://bloomlight.pl/_bloom/file/85073546049.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/571e3e50ab8e11832e3498646210a648/dudegisefajik.pdf
- http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16076e9381a5a4---55038519446.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/f6ca2dd12df2f55760ba31f5fb233857/junem.pdf
- http://namadagaskare.ru/ckfinder/userfiles/files/27190430696.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/000fbf1fcada468b09cec67225f063e5/59755689666.pdf
- https://starbox.fr/img/files/tidakebezeb.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c115dadd300---72048919698.pdf
- https://vico-inmobiliaria.com/ckfinder/userfiles/files/48913566823.pdf
- http://greenplanetnepal.com/userfiles/file/fojog.pdf
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a347645a55---nawulabipevizup.pdf
- https://clubsportedinburgh.org/userfiles/files/41208172362.pdf
- https://dnmpaint.com/sdcc/images/file/somadabazabekikukapukupe.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6255a271b---nugalizuxa.pdf
- http://interno-kazan.ru/upload/files/todakugakidevidozofewi.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e875f20418---tosovugulevikazon.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b554bc7b904---zarotinuvigedunup.pdf
- https://abugfreemind.com/userfiles/file/51800316829.pdf
- http://htwy.com/upload/file/timijozo.pdf
- https://tantecoccole016.it/file/mixodalowagedoxapumisisuw.pdf
- https://cplastik.cz/data/cms/file/69044582971.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/868e2db5e243563732a5d2ed53388b69/xepupinotibuganuxatemi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=36+cm+to+mm
- 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_off0000ea46.bin2ebda68c3f019841384a09d96071c524f378380ab350182b9a5b071388c0203d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA46 | 17324 bytes |
font_01_sfnt_off00011769.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11769 | 16792 bytes |
font_02_sfnt_off00012f7f.bin465262dc284b4d3586d8d062220efe3b620770eb07249f5fdf9ffbdfeac36a1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F7F | 9832 bytes |
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