MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to compromised websites and disposable hosting, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing for tax-related information or credentials. While no scripts were explicitly extracted, the presence of numerous external links and the overall structure point towards a malicious document designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://stellamaris.cz/userfiles/51664708358.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/10a292c05afb6d2ac2ddf9ffdeafada8/92114415152.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608d209977ea4---zifotupus.pdf
- https://topupdana.com/contents//files/vipaxusavoz.pdf
- https://alzubidi.com/userfiles/files/26368637970.pdf
- http://peeweeslearningcenter.org/clients/5/54/545fcf94abc6bccf175f3035c740e6d3/File/bobexexeki.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16087c34faf353---jepem.pdf
- https://rybczewice.pl/userfiles/file/rugujurigafal.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087539560e89---36129095405.pdf
- https://rzfmuhasebe.com/userfiles/file/83149361726.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/f2db0b932c0609fc01db11303040b177/xusovi.pdf
- http://capital96.com/userfiles/file/64009630431.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/510112a03863e4086ba63c160301fe84/18662017761.pdf
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/f0b78d91d24834adfb58f9b9a736c5bb/93460248760.pdf
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608460fe14a6f---2505154271.pdf
- http://zuche0551.com/upload/file/darivuke.pdf
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/24a9548519fa99ee3da0d070d9773b96/66088535121.pdf
- https://menlopark.com/wysiwygfiles/file/zodegojagixefesize.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/j77nogktldd7vcmcc65d3ot2pv/dakisaredovavewilo.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b6a2b748535---32148221721.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c25926f4fd---75796278674.pdf
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/04ek524ignbb7ppt8etpqekit9/matemigepipalenesas.pdf
- http://digemnd.com/UserFiles/file/dokaji.pdf
- http://www.urbanwaterways.info/files/gesodunofazaturo.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085c8e4d1be3---84889223347.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=irs+estimated+tax+payment+for+2020
- 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_off0000fd2f.bin9e2e0da74675074ffd862aed582b0ad365cadca316c45693fb8673f219ec07a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD2F | 11020 bytes |
font_01_sfnt_off000116df.bina29e823b29f7ba17c49ad662c9d2e652c31113cb4a8da0f84aa966d2d89c3c62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116DF | 17012 bytes |
font_02_sfnt_off00014369.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14369 | 16792 bytes |
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