MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to host malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware delivery. No scripts were extracted, and the document body was unreadable, but the heuristic findings clearly point to a malicious link distribution pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://locthanhwindow.com/img_duhoc/files/20126794416.pdf
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/82529493891.pdf
- https://techson-cctv.com/upload/file/26652416746.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/7510cf245ac913b28186267cd8a6161e/36441377318.pdf
- https://korvioinfotech.com/ckfinder/userfiles/files/rerifawijud.pdf
- http://yummyschool.com/_UploadFile/Images/file/35630651936.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/ed944a4cc856032d2688c8660e93fede/90691452964.pdf
- http://jmlukanich.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/93547776908.pdf
- http://qdxqw.com/uploadfile/file/vogomawugozimufagugivafez.pdf
- https://harkakotony.hu/UserFiles/file/84192192059.pdf
- http://scro.ru/pic/file/73441758031.pdf
- http://tetobox-budapest.hu/uploads/files/kisaxuvixox.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/9b2b0c6d4b3518024a8aa7705b8b4984/86112455759.pdf
- https://accesoriosalmayor.com/images/userfiles/file/xovudimufupatedari.pdf
- http://drironcat.com/images/file/momuzejidiseramasadafode.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149606f98d7b---32550309255.pdf
- https://www.champagne-cornevin.fr/ckfinder/userfiles/files/80051866513.pdf
- http://sp2wronki.pl/fotki/fotki/file/kanexutijosigato.pdf
- https://alirezamirmohammadi.com/images/upload/files/luvanararozorigabosowo.pdf
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210914135349.pdf
- https://taipeitccia.org/CKEdit/upload/files/29064060957.pdf
- http://angel-conference.org/upload_fck/file/2021-9-14/20210914011957769119.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614857905eebe---55340561787.pdf
- https://vandolderskb.com/images/usr/23236781540.pdf
- http://veszpremkosar.hu/_user/file/60825210957.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=friedman+the+world+is+flat+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_off0000bb74.binab16c3690c8b12169f035f719d08b4a043e5bbf4be2fbc5d23b0f9511ebcc319 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB74 | 10828 bytes |
font_01_sfnt_off0000d43f.bina6fa3348eac4ca9ccda57b47071f2c1b10e975103a3c01f380aa3ec4f85c70d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD43F | 16248 bytes |
font_02_sfnt_off0000fd93.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD93 | 16792 bytes |
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