MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged as malicious by a machine learning classifier and ClamAV. It contains a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute further malicious content. The 'SE_INVOICE_LURE' heuristic indicates the document's content is designed to trick users into taking action, likely by downloading the linked PDF which may contain a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://domeinbeverdonk.be/assets/files/file/64690249737.pdf
- http://www.aqsclimited.com/EditorImages/file/luwizitavogoziwad.pdf
- https://aronabritcan.com/userfiles/file/29395124045.pdf
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/dixenovisig.pdf
- http://kompletucetnictvi.cz/files/file/45754961471.pdf
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16084d8576f4ce---46146936625.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/b27e274fd3beb913fd4ab02564a566a7/72550529932.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090dd101b0e3---nupotaburolugavonobojot.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d9e604b5f0---60791473718.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/ip6kbhmk15uld3e8fcl61hqfp2/91568717990.pdf
- http://mid-europe-ex.com/images/blog//file/54926339327.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/b52f89f31f9fe000753f9b8f263847a8/53969913315.pdf
- http://pressvaluation.net/userfiles/file/53067667863.pdf
- http://bukharaatlanta.com/sites/default/files/file/74487410802.pdf
- http://acupunctuuryao.nl/ckfinder/userfiles/files/89464405662.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=daley+company+estimates+uncollectible+accounts+using+the+allowance+method+at+december+31
- 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_off0000d849.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD849 | 16792 bytes |
font_01_sfnt_off0000f05b.bin95b5fb3afd570e2d0a674640c02eb471ef9b4d90cfe9ba1950805d84f8438409 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05B | 16756 bytes |
font_02_sfnt_off00011c05.bin5fca571163093c90de6d06b03e3bbbaf207de94fc8b10a727184a2378f5cd3c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C05 | 11628 bytes |
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