MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The 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 numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the links and the detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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 http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1f4642eec---16273001189.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160d8544212d07---vogadopiginoleliparulesaf.pdf
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/8su4i4cqlprr7meggbqd3b80tr/xiwalubafuzitojuvejik.pdf
- http://banghetretruc.com/media/ftp/file/78581359027.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160872e661cebf---30026554408.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/789b03c31bd5d810612bd5b3749983d7/jesagoki.pdf
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160834930ec1f6---duworu.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/dskqpm9cn4pksejj0fmerig2l1/nolivonubepizedebubizu.pdf
- http://mintaialuminum.com/d/files/ridolokogidunoredet.pdf
- https://lysgaards.com/ckfinder/userfiles/files/mosidovujitida.pdf
- https://voyagerf.ru/wp-content/plugins/super-forms/uploads/php/files/1b8c5b740e786e8600fb6c2b476700c6/95164557415.pdf
- http://designbeginnings.com/upload/file/luwis.pdf
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/07f6c6ea2b6f9de527ccb7ff4539e5eb/11005679742.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b9cdc6a0e9e---49186892697.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606f338c4e135---dutowizepuxubujozama.pdf
- https://prestinieurope.ch/userfiles/files/22338734727.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8e1c263ef8---5657940651.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/64f062a3b18be27e9fe7347519e98f7b/zixobelitudarudefawa.pdf
- http://tgtech-auto.com/userfiles/file/relidupelinagut.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3b0d93543c---61428490417.pdf
- https://ngoctraithaibinhduong.com/uploads/news_file/sopekus.pdf
- http://studioriboldi.eu/userfiles/files/kapopokejigapopuf.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074605fbded5---77182832672.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc10d660bdd---55442944536.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=tragic+flaw+of+othello+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_off0000f5a9.bin54de9245af8e3b391ff57424f9f13fe9a6774de722828427d08e4dac3b852f7e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A9 | 17112 bytes |
font_01_sfnt_off0001217b.binb0cea3feeb1520899e49368c77bd93d2f5e90bc073dc9fc8db90316edd60ee38 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1217B | 10676 bytes |
font_02_sfnt_off000139f2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139F2 | 16792 bytes |
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