MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ClamAV and an ML classifier, with high-severity heuristics indicating PDF links to algorithmically-generated URLs and compromised CMS upload storage. The document body is unreadable, but the presence of numerous links to potentially compromised WordPress sites suggests a phishing or malware distribution attempt. The primary IOCs are the suspicious URLs found within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/f9f6140cc0101f59f16694747b11176d/dotonobimuwifemuxililot.pdf
- http://akcjonariusz.com/UserFiles/file/6658438451.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/67f4c76cc290f8628e8128c65438ddaa/58139304807.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/hnch7q7hsqhjg6qlvnvq5qimt2/wiruje.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b5184f545---vunisibagites.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/0778a9904a46df6f934ae87f878fc359/muvasuvukijede.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/7dcb2629e308d5680b932136cecda99a/julatixojulusemubugebidik.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/46oma4ep8qmc6cqfc61c2bgso0/kosakozozibadowa.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfc9c66653---dumejitu.pdf
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c95779cb8e4---topomufuxo.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ceff13f03d---dinikazexiruvuzobisa.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160f303ee12cac---guxipakizedodaligu.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/3b2faaa96ed191e01f8d4957d88dd2d2/negewikusemubu.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/051f7bfbbbc61a0371e36a1088266e2b/46187917777.pdf
- https://a2designbg.com/userfiles/file/72941651586.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3855debecb---38824974463.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607deeac96156---2820858473.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba00c86dfb2---73446434210.pdf
- http://argyleliquidations.com/userfiles/files/deruwukitebixitorufuzoni.pdf
- http://garderoba.sk/images/_file/85924949639.pdf
- https://ntpuvoice.com/ckfinder/userfiles/files/64924891328.pdf
- http://www.themixchange.com/userfiles/files/xakulunebilimob.pdf
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d756118343f---78911885910.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=560mm+to+inches
- 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_off0000f14e.bina7cf4e63a715a6d6c6e0a5f0aace4e71f5cea889b96270d19c798453b1390f86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF14E | 10516 bytes |
font_01_sfnt_off00010911.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10911 | 16792 bytes |
font_02_sfnt_off00012123.bin61f309e94e6772a6a056d1c405f066890ae0d65385a744af321003bb4c2c4eba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12123 | 16776 bytes |
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