MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites acting as link farms. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for these links. While no scripts were directly extracted, the overall structure and the nature of the URLs suggest a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
Heuristics 7
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://vervesimuhub.com/userfiles/file/86179432907.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/d84b88acb6e20c139df887ec188e3842/13384842809.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/d45c8443447fc196643005489b4a2993/37714359260.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608e2e9723ca1---50991625253.pdf
- http://hongshengfish.com/uploadfiles/20210524/210524225933084411gbnpacurrjkd.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/12c80ee236b61943715a0132b0d93087/nobukolux.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0f0878eee---48752146704.pdf
- http://saxonsaxtonfamilyreunion.com/clients/f/f6/f6d0431f970e0833b0867c311dafb132/File/96764295840.pdf
- https://paron-rebondir.com/uploads/files/koruvoriduwet.pdf
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160890b26924ee---tiforadejawimede.pdf
- https://www.bakirkoytemsilcisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160737f85ad912---meguzodufuwerapafewi.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eda88a1157---fipunobavivinuxagom.pdf
- https://vildmarksjagt.dk/userfiles/file/35986500224.pdf
- http://rebeccafantarchitetto.it/userfiles/files/34528289440.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/d61d06ec7ad6171c0bcb9fec22fea30e/51825930802.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/46158659f47a4158701cec04a365c716/88361813534.pdf
- http://movementlab.dk/userfiles/file/lidulamaraka.pdf
- https://clickkedai.com/userfiles/file/tiwevejinet.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fc87cb466---72701235798.pdf
- https://puppometalli.eu/file/rejiw.pdf
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609463d8ba483---10915454632.pdf
- http://agarimo.com/archivos/archivos/subifarosamolewujelusewom.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+to+defrost+prawns+safely
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e73a.bin3a04fd22d0e695cf6d45e9ee061e9cfc83ce7b298d9b32e96d9c88a7403c3dd5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE73A | 16788 bytes |
font_01_sfnt_off000112a4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A4 | 16792 bytes |
font_02_sfnt_off00012ab5.bin88a5f3ad9079b2340172ecd64f1cd79ba1ad1753eb2b73e58de10c5a7be67d15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AB5 | 16340 bytes |
font_03_sfnt_off000140ad.binf77e243b618b5d13b1bf3bda126cc09bbb644a214ea47bd0f5333671bd1e753f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140AD | 10592 bytes |
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