MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It functions as a link farm, with numerous embedded URLs pointing to compromised websites and disposable hosting, likely to distribute further malware. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9930
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://tkhomedeco.com/assets/uploads/ckedit/files/20210628231604.pdf
- https://raptiherbal.com/ckfinder/userfiles/files/damemojivugazatuxikon.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/53913393356.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160af9a79adff2---lomabila.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b72c3ac03bb---gusujulatukakafena.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608484ed4cf8f---7129053765.pdf
- http://tipiland.net/upload/file/25851833730.pdf
- http://dancephoto.ru/userfiles/files/zepejudefugatetusa.pdf
- http://hzdsbg.com/uploadfile/1624083490.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/60d7a06400674faddce7ea6198fe9046/dutuko.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/437f55655e20b12f9c60366e3693cea0/77649553496.pdf
- https://wodepcb.cn/uploadfiles/files/pasubiwarotodofojagajamod.pdf
- https://lawina-radom.pl/files/file/35739844416.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16077a2e09154f---zobuw.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/552be198ac4e9535ced85f8b416924c3/15623953795.pdf
- http://blissworldbeauty.com/newerac2c/userfiles/file/sozolejituk.pdf
- http://pestcontroluttara.com/ck/upload/files/3294450287.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/c2af4e4fa350d29899355f33004b57d7/dumujalizuxavolel.pdf
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6dcecaf44---579300481.pdf
- http://stalmont.eu/userfiles/file/fupeduzovibit.pdf
- http://axwelindia.com/uploads/zefesazem.pdf
- http://ashioke.com/images/library/File/27767742046.pdf
- http://jjmcp.jp/userfiles/Image/file/47291943731.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=sesame+songs+sing+hoot+and+howl+vhs
- 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_off0000e669.bin03df1f58e588c0089e0283a4d3f6f32c6a7ed16f05f300f7726b34f50403fb75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE669 | 17200 bytes |
font_01_sfnt_off00011355.bin59aac2bd2637516d4a700c23cfed53e45f00397d80bff5ad17686c0033f9b627 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11355 | 10820 bytes |
font_02_sfnt_off00012be3.bin68e815f79c39f2fa5ec20775650274a0f56390c76df5d394b9eee5d337b1cd6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BE3 | 2192 bytes |
font_03_sfnt_off000135ab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135AB | 16792 bytes |
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