MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, likely intended to trick users into downloading a secondary malicious payload. The presence of embedded URLs and the nature of the heuristics suggest an attempt to deliver further malware, potentially via JavaScript execution within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://school19-zav.ru/userfiles/file/fixuwukijitaravuwawonuson.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075a697b30fe---jomuvugopilipamivapudiw.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/0b7hnl3kcaf8c6u18of1sf70h1/18029488530.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/e364944f8ba73cc40a1ae0bf2c05a29f/pirejadebowinig.pdf
- https://bursac.net/userfiles/file/tajiluk.pdf
- http://fqcycpa.com/jingkelun/userfiles/files/20210613063530.pdf
- http://ahsaipu.com/v15/Upload/file/2021429201428147.pdf
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/26c138qtijn3f141ton86nuee4/4364990003.pdf
- https://luminex.pl/upload/file/beposuniliwimogi.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/0hqknqs4l1d57ji4bh0u95cvr0/17978867682.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d664b0054a---44453620967.pdf
- http://meteosputnik.ru/userfiles/file/9622622623.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16094061c63c89---xefatetovevedegedetotaf.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab9c44f757---29590516145.pdf
- http://alliance-ltd.com/userfiles/xuvunabulatigoloveb.pdf
- http://mhinflatable.com/upload/file/doserupap.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/2hgoq02acuqobgj4uacifmips3/melozowusegigetari.pdf
- http://evpltravel.com/xv_image/file/lomolum.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e138f9f2fd---wigodekagedisufokuwawa.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/e246d38e5ca5eb33372b7c2282605fbb/47415785614.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/50541e861ecf8f3af23c4bd6006e4423/24406336318.pdf
- http://caopump.com/admin/userfiles/file/22891507833.pdf
- http://jncs.kr/page_data/file/20210620045356.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/8b20aac099cdd2d516828e9b9fdb8351/rezabomekarozowapuledudaw.pdf
- http://caopump.com/admin/userfiles/file/lobimezemozawila.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=audit+number+on+texas+drivers+license
- 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_off0000f2c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C3 | 16792 bytes |
font_01_sfnt_off00010ada.binc97ce505b9c510af03d8805ae543138bd7301be38adb3ef23b89349b375db954 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ADA | 10920 bytes |
font_02_sfnt_off0001242b.bin5ec9c38e359d52c0315b46ad5f7543e9e085c259961a7bd3f9fd2af3995454c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1242B | 16288 bytes |
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