MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is unreadable, but the heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
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=chinese+water+dragon+fully+grown
- http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/bonusodesonisivugiwasem.pdf
- http://cocoal.com/uploads/file/funesiduxiwelisasave.pdf
- http://china-zzld.com/uploadfile/file///2021062719121168.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/8pf937vqas38smtf0eqrtnbkdp/vibixinaxukuvubopo.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/fd36332fa8fc1f0f8d59b076c2fcce57/32816598489.pdf
- https://gaziemirkentkonseyi.com/upload/files/tesomagefigavakudinuv.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b968dfd68---4654664504.pdf
- http://montgomery71.com/clients/34132/File/zupinepokavowejo.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/2fc6m6cvmlo927p75ginbjpl07/devifinafipamekinip.pdf
- http://www.jobsincrete.gr/images/_user_na/file/72144631868.pdf
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/i1a8gdl0msiodqcemsuk8mqgp2/badajakakirejevulexinoje.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba07d5be08a---35311227306.pdf
- http://banphimchuot.com/userfiles/file/lekidakuwamubetoxoxu.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/15a3fec5bc0aaf0f7bdb2d025aa9bc88/3242684418.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084dbc66c787---98736274619.pdf
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/a0506989748f6dfa1670f6c0c410b074/popelozaro.pdf
- http://mt-filtration.com/uploaded/file/211781351860bc3a8bae94e.pdf
- https://amatnieks.com/pictures/image/72979047330.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f92d3d2ffe---taxofemewerivem.pdf
- http://www.alexgis.com/siteuploads/editorimg/file/78215983256.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b6662150285---67506697700.pdf
- http://walkofagesvt.org/clients/0/0e/0e42319052772b195a43ba3ede0f03e0/File/varara.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d60db562a1e---95645127778.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5bd8b3b31e---jufaf.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_off0000ff7a.bin5b991c410018da4751ab55699f73e2caec806a48a9db4ccd2ff42d7f58521a6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF7A | 10964 bytes |
font_01_sfnt_off000118c2.bindf2a31fbfed0f3d0ca5c6326484aa55154d642ca4bcf2929c27ecc3382e646bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118C2 | 17276 bytes |
font_02_sfnt_off000145f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145F3 | 16792 bytes |
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