MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to domains associated with compromised CMS uploads or disposable hosting, suggesting a link farm designed to lure users to malicious sites. The presence of these links and the overall structure indicate an attempt to facilitate phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://ciela13.leaddeehub.com/userfiles/files/neperejop.pdf
- http://anhuifan.com/upload_fck/file/2021-8-18/20210818160043153497.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160736537ce00d---58379590285.pdf
- http://baoveantam.org/upload/files/33837076972.pdf
- http://cocoal.com/uploads/file/migexunipapojiguwolojun.pdf
- http://live-net.it/file/mafedisira.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/qd2nb0gklo8tcdacpc43056bvk/zoxufubenijiselowunix.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5316513a4---nimam.pdf
- https://hotelite.in/userfiles/file/54850882541.pdf
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/6daa9080c6a2db14080187e14cad7018/1703897555.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4524959370---46768739516.pdf
- http://gramercygrand.ru/files/file/94397641719.pdf
- https://communeouchamps.fr/userfiles/file/gikixoj.pdf
- https://francoisdaulte.com/ckfinder/userfiles/files/sibupazuwinenoxijik.pdf
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e0e228b8d---fugiba.pdf
- http://5m-tti.com/uploads/image/files/pegisumixeboxuruxafu.pdf
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094df6b00747---fusolozidu.pdf
- http://shukokai-voves.fr/userfiles/file/53947248678.pdf
- http://100gastro.cz/soubory/files/29379554967.pdf
- http://ccswcd.com/userfiles/file/17591063543.pdf
- https://avayemehr-carpet.ir/data/file/70399805229.pdf
- http://poorclarescork.ie/images/bizogivogonotamebuzid.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=pdf+to+image+converter+free+download+online
- 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_off0000c1d6.bin80a7c029151ab2e959c912c0dd56101ccef2c850565dfc21a1a7cc88f563a654 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1D6 | 10804 bytes |
font_01_sfnt_off0000da91.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA91 | 16792 bytes |
font_02_sfnt_off0000f2a3.binb090933707b0b6aae1d3f0691014f487479912c696324be27836528a0cffe7f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2A3 | 16984 bytes |
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