MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to numerous PDF files hosted on compromised CMS upload storage, suggesting a phishing or malware distribution campaign. The presence of many distinct hosts and disposable hosting patterns indicates an effort to obscure the ultimate destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://weeb.nu/userfiles/file/75470499162.pdf
- http://klassn.com/ckfinder/userfiles/files/nakapewu.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a674a6341---49805943265.pdf
- http://yishiweb.com/upfiles/files/20210529_144324.pdf
- http://caratow.eu/userfiles/file/60495062314.pdf
- http://pvhs1967.com/clients/a/aa/aa78cb05297cd93d8a9ab6bd1eb8a3c4/File/tixivenawa.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/346ba597776eb37fb69b393669b94473/68927709470.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b6f6981bf88---38611874876.pdf
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/i35ppr35g7lnuv6mrgrg1ionv1/vawuwe.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f0bab6b26---korutevimemuvemowixegoguw.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/2dqamrsu3tjrcp1q2m033ic282/81041245430.pdf
- http://architettotamborra.eu/userfiles/files/51513172057.pdf
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/34782074860a511c83fb06.pdf
- http://adamlegal.com/userfiles/file/korugesukisesavelaxizi.pdf
- http://dzbnf.com/upload/file///50140034122.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/l51m55a8iti8iarflc269vbcg4/50482113577.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606e6f35b340c---xepuralu.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c9114d7cac0---10073495593.pdf
- http://china-hold.com/UploadFile/file/20210613191619785.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160a2afc641575---paseretafuboviduzabil.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c76bbcc34dc---bodofirujif.pdf
- https://deltarents.com/upload/ckfinder/files/2762953507.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac70f10461---nikifepuvakuv.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=villi+of+human+placenta+arises+from
- 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_off00015dfa.bin62f3be1abefebd60345587aad48932681803c8cac5fc3e20ea9494d89c4849d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15DFA | 10816 bytes |
font_01_sfnt_off000176b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x176B9 | 16792 bytes |
font_02_sfnt_off00018ecb.bin457ac8077ca4eee05765224b41dcd52c97d0007fa3ff8a9bda824d46080df6bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18ECB | 18344 bytes |
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