MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous URLs pointing to compromised CMS uploads and disposable hosting suggests a phishing or malware distribution campaign. The document likely serves as a lure to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://coretry.ru/uplcv?utm_term=psychology+practical+book+class+11+pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c93db5bcd0---mitasew.pdf
- http://kovacsoltvaskerites.hu/images/file/xopuxiwoma.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b06b0769faf---puzoletuvo.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9e8e01168---pawapigupokegegaruwus.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/965b326da5fc64c376e4a897dbd96e10/16418351939.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b2cfb6501---1034757592.pdf
- http://goldnumber.info/userfiles/file/17519832702.pdf
- http://agiusfuneraldirectors.com/files/file/puzozozaluxu.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/fac1e0a983661dbc961e7da845568419/mutij.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a08fbe0d2a5---10292468446.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/75ab6e4b530982f9b83c929483b75e59/vefofetijogotezagabusesiv.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085178ed3a27---xelozoxitunewidunix.pdf
- http://laptopplus.be/app/webroot/files/userfiles/files/53054241088.pdf
- http://flirdining.com/uploads/files/vatepabadute.pdf
- http://historia-bfured.hu/userfiles/file/77648523327.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1f9cbdaab---33644644798.pdf
- https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/704230502109fa08cea6f9d094ebf3c2/64538753234.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/cc2e8fa169a1509aad6952305c30a8cb/toxodagodorami.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/b155c639e1c107f88ed7e9bb467cf241/xewudaxebexuriretemerive.pdf
- http://teplospectr.ru/images/files/retoxuvogulal.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfe521c9ecb---robigajopobipasopurubow.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_off00019987.bin4d5e2cbd9a4adbb692927b094486f7b25b1da71ad123f4adf9bea9043e968c76 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19987 | 20836 bytes |
font_01_sfnt_off0001cf0b.binc1ddb0bacc42b8319b0424d28943b4f34ec269f68958201a01ab7b2715cda365 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CF0B | 11064 bytes |
font_02_sfnt_off0001e8a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E8A7 | 16792 bytes |
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