MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to websites that appear to be compromised CMS uploads, suggesting a phishing or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The presence of a link farm on disposable hosting further supports a malicious campaign.
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 http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ca3ddab4f---tegejodubes.pdf
- http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/5841581631.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2a7215387---mekepapi.pdf
- http://sakaryakasaplarodasi.org/userfiles/file/21658996066.pdf
- http://thepokeluau.com/uploads/files/raxewuvozimepu.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d24d17976---waliwapuv.pdf
- http://nicenpos.com/userData/board/file/53535179231.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b3712531877---95939558708.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae45c5400e---80920273610.pdf
- https://pergamine.com/ckfinder/userfiles/files/zewumetot.pdf
- http://pamatudarbai.lt/ckfinder/userfiles/files/74478289549.pdf
- https://paperland.bg/uploads/file/62399492568.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c92318804c---62176661038.pdf
- https://bangvetthuong.com/luutru/files/xurefowel.pdf
- http://fields-on-earth.com/86808352857.pdf
- http://www.cbs-emballages.com/upload/file/88840103838.pdf
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/5cfffde822a2e93427d2620ff26e1f71/82547379669.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c93869c68e5---38915797555.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/4006060428f1c5383edcf574422f6865/pedoluwod.pdf
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8106f298396c6073c57452b357caf10a/72424602322.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/48c064c2d657a27e625ad0f7fc00cdc7/51602929259.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/044d3f7aa707df61980d4ac6729675a1/3076142336.pdf
- http://dainichiji.com/upload_ckr/files/69971443900.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=the+unbearable+lightness+of+being+online+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_off0000fb74.bin37df1c3cd307942969fe09ec201bfba775a1e1cdee2c8234cd835807e1cafba0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB74 | 20456 bytes |
font_01_sfnt_off00012ef5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EF5 | 16792 bytes |
font_02_sfnt_off0001470c.bin2d19ac00ed5e971d07cc11d03de25a5f498f164c57e0c12ee59ff32a8a9540c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1470C | 10980 bytes |
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